As explained in the previous chapter, we divide the process of building a product in four stages:
We are conditioned to view action as good and inaction as bad. We want "men of action". We are conditioned to view material as good and void as bad. We want "men of substance". Noise is for the living and silence is the symbol of dead. We carry these traits to creating software.
My friend protested: "What if it appears tomorrow in the question paper?".
 If it appears tomorrow in the question paper, we will not solve it and we will lose marks. Simple. It is not the first time we will lose marks. But, given the limited time that we have, it makes sense to thoroughly study those questions which are much more likely to appear, rather than fretting over the corner case.
Perfect is the enemy of good. If you aim for perefect score, you might end up not even getting a good score.
Zero is a number. We all know that. In case it sounds obvious to you, be humbled by the fact that Romans did not have a symbol for that.
As software engineer, our goal is to deliver systems which work, not to entangle ourselves in needless complexities.
Let's say you are a startup starting with a couple of engineers. Idea behind your startup is to build the website for a SaaS product. Specifically, it is a marketing automation software. Marketing person from your client company makes an account on your website, and then he can run online ads on Facebook, Google, and several other providers. Your pitch is that users need not manage those ad platforms independently. Your platform allows an integrated view of campaigns on all those platforms and you can manage ad spend on all those platforms from a single place.
Your are quite excited about the business potential of your idea and start designing how the platform would work. In particular, you figure out user management system. What all features do you need? Let's start making a list:
The list could go on and on, depending on how creative and experienced the list creator is. You may even think of something like Amazon IAM (Identity and Access Management)
But, are all the above feature required in your platform? Remember, your idea is just an idea. Your time is better spent in writing code for core application rather than worrying about user management. Just the first 3 points from above list are good enough to be implemented initially. You do not need many users to share the same account: people can just share the account details for your site. When your site does indeed become popular, you can always add on more features related to user management.
Remember, every line of code you write makes the software more bug prone, and needs investment in maintenance. Thus, features which we implement require business or technical justification which outweights the maintenance cost.
Often, not doing soemthing is the best way to do it. We once had a client who used to request for some APIs. Can I have an API to download this data? Can I have an API to download that data? We noticed that the client asked for the APIs but never used them once we built them. What is more, till the time the API was built, they would follow up with us regularly. If we said it would take 2 weeks to build it, they would try to negotiate for a week. But once we delivered the API, they never talked about it. They never used it. We figured that now their tech team needs to build the systems to use the API. And their tech team never finished.
So, we adopted a trick. When they asked for an API, we simply took some time (it takes time to build something, right?), did nothing, and said that it was done. Our idea was that when they actually tried to access the API, they would complain that it is not working, and then we would actually build it. That never happened, they never complained.
This "Lazy doing" is all over the place. Ever heard of lazy loading classes? Or lazy evluation? Just in time compiliation in JVMs is the process of compiling byte code to machine code just when it is required. So, if you are being lazy, you have good company.
Once I worked at a startup, where the CTO used to distinguish between a "good problem to have" and a "bad problem to have". If customers are using your product very rigorously and are demanding features at the rate at which you cannot build them, it is a good problem to have. If your servers are being overworked with requests, it is too a good problem to have (which needs to be solved quickly, else the customers will go away). However, if you built needless things, which you maintain but nobody uses them, it is a bad problem to have.
Lastly note that empty set is not the only set. Not building things is not the final goal. We decide not to build some things so that we can build other, important things. Putting things off beyond a certain point can be harmful too. That is the topic of one of the next chapters.
This chapter deals with miscellaneous topics on software architecture.
There is a story which I have read from more than one sources: The ceramics teacher announced on opening day that he was dividing the class into two groups. All those on the left side of the studio, he said, would be graded solely on the quantity of work they produced, all those on the right solely on its quality. His procedure was simple: on the final day of class he would bring in his bathroom scales and weigh the work of the "quantity" group: fifty pound of pots rated an "A", forty pounds a "B", and so on. Those being graded on "quality", however, needed to produce only one pot - albeit a perfect one - to get an "A". Well, came grading time and a curious fact emerged: the works of highest quality were all produced by the group being graded for quantity. It seems that while the "quantity" group was busily churning out piles of work - and learning from their mistakes - the "quality" group had sat theorizing about perfection, and in the end had little more to show for their efforts than grandiose theories and a pile of dead clay.
Similarly, computer architecture is learnt only by practice. If you don't know how to architect elegantly or correct, do not delay your project to think too deeply about architechure. Just do things that seem logical, and be ready to change when the moment of truth strikes. You learn only by experience.
I have two stories first hand, one when a system was architected badly and other where it was architected well.
The first story relates to when we writing a realtime bidding engine. A realtime bidding enginer receives a bid request from the supply side provider to bid on an ad slot. As a part of the request, the bidding engine receives various properties of the ad slot (like the website on which the ad is to be shown, the size of the slot, the location of the slot) and that of the user (location of the user, his interests, etc). Based on all these parameters, the bidding engine needs to decide how much money it is willing to pay for a particular ad.
The product management team gave the requirement that there will be a "base bid", and then according to several rules, base bid will be multiplied by some factors. So, perhaps if the user was in California, base bid will be multiplied by 3, while if he was in Baghdad, it would be multipled by 0.3. We will arrive at final bid value after several multiplications.
The engineer building the bidding engine was very enthusiastic. He saw that the sepcifications can modeled by a list of "conditions". Each condition needs to be evaluated in one of the buckets. For example, the condition would be "country of the user" and various buckets would be "India", "USA", "France", "Others". Or else condition would be "Income group of the user", and various buckets would be "HNI, Affluence, middle class, poor"
Our engineer decided to model conditions in a class called "Condition". He realized that there could be several types of conditions: in some conditions, each bucket was a range of values (e.g. for age, buckets could be: less than 18 years, between 18 and 25 years, between 25 and 45 years, more than 45 years). Or they could be discrete valued (like gender being male or female). Or they could be ordered string match (A user falls in the first bucket that he matches) He decided to have "Condition" as an abstract super class and several specific condition classes inherit from it.
So far so good. Above abstraction faithfully models the requirements. But being enthusiastic and bright, our engineer tried to foresee what the product team would demand in future. The idea was to code such that upcoming requirements are also coded up and require no futher changes to the code.
He decided that in the future, each condition may have sub conditions. In other words, some conditions would be applicable subject to some other conditons falling in specific bucket. Perhaps we would apply age filter only if the user was from United States.
To model this hypotetical need, he decided that each condition class will contain references to an array of array of subconditions. There was one array of sub conditions corresponding to each bucket of the condition. This complicated the whole code significantly and increased the development time.
Our engineer remained for around 1 year after coding this up, and there was never a need for sub conditions. When new engineers were required to understand the component, he admitted that it was an overengineered peace of software and the newer engineers never needed to learn how the sub-conditions worked. When the original engineer moved out, there was no one in the company who understood sub-conditions.
A few years later, the code was migrated to Java (the original code was in PHP), and sub-conditions were not required to be migrated.
Different requirements from bidding engine did arise. However, they were along the lines which the original engineer had though. They were completely different and were coded up as they arose.
The second story relates to the case when we needed to build a data ingestion system. The problem statement was simple: we had to build an HTTP server which received data and stored it in relevant database and relevant table in MongoDB.
We were just starting out and had no visibility into scaling issues that may arise in future. We did not try to predict them either. We wrote a simple server in Django REST framework, which connected to MongoDB on each request and fired a query to store the data.
We saw that in times of peak load, data ingestion was not working properly: it was taking too long to connect to MongoDB and requests were timing out. This was leading to data loss. We realized that we needed to have a message queue between our Django server and mongo db. A message queue can give us much higher throughput while writing data because it is the only thing that it does. We decided to use Kafka as the message queue. Now Django server writes to Kafka and there is a kafka consumer which inserts data to MongoDB. Now, at the time of peak loads, it does take a few minutes for data to get inserted to mongo, but at least there is no data loss.
While looking at mongo logs, we saw that connection to mongodb was being repeatedly opened and closed by kafka consumer. On some reading on internet we came to know about connection pooling. We realized we needed to have a connection pool rather than open a new connection per request. We implemented this, and the CPU utilization of our mongo db servers went down a little.
Things again went fine for a few months, when we started facing a fresh problem. MongoDB was not only ingesting the information, but other systems fired MongoDB queries for other purposes.
Again, we realized that bulk operations to mongo were more performance that individual operations. We wrote a module, called mongo query aggregator, which provide similar interface to other mongo drivers, but which aggregated the write queries and fired them to mongo either when threshold number of queries were collected or when a threshold amount of tasks (few hundres of milliseconds) had elapsed. This again reduced CPU utilization of mongo and the system became reponsive again.
A few months later, as the ingestion rate and query rate increased again we started having similar problems. Incidence of such problems rose from very infrequent (once four weeks) to mildly frequent. (once a week). At the time of large read queries, the ingestion system would be too slow and it would take a lot of time for data to reach from kafka to MongoDB.
We realized that a lot of data that we were getting was repeated data. For a given user, we got his profile information as many times as he did some action. The profile information that we got contained information like the name, email or the city of the user. This information tends to change very slowly, but we wrote it to MongoDB repeatedly. To reduce the query rate to MongoDB, we put an aerospike in front of MongoDB. As we wrote some information to MongoDB, we also wrote it to aerospike. However, we writing an info to MongoDB, we checked in aerospike if the same information was present already. If yes, we did not bother to write the information in MongoDB. This optimization reduced the MongoDB queries by around 60%.
Along the way we also realized that not all data is equal. For some types of data it was important to get it to MongoDB as soon as possible. Other type of data could wait. Thus, we started from putting data in two different queues from Django framework. When there was delay in gettin data to Mongo, we could shutdown the consumption of lower priority queue, thus ensuring that high priority data reaches mongo on time. Once the peak traffic was over, we would start consuming the lower priority queue.
As the traffic increased, we also realized the django was not most efficient framework to be used. The number of servers employed were increasing with increasing load and we believed latencies could we lower. We migrated this system to Java Jetty and brought down our infrastructure cost as well as reduced the latencies.
While our server was written in Django, nginx was the front facing server which routed request to django via unicorn. When we shifted to Jetty, nginx continued to be front facing server. However, we realized that we no longer needed nginx, since jetty could serve well as front facing server. Thus, we removed nginx from our system.
Data ingestion system began with a simple 30 line django code, and by now it has expaneded to several thousands of lines code, with multiple systems running on various machines. When we began we did not know how the system will evolve, and we did not try to predict the problems that would happen. However, we kept our eyes and ears open and solved the problem as they came.
The key is to be continually evaluating the systems for current performance bottlenecks and how they could be resolved. You need to know what the current limitations of systems and how they are currently impacting your uses. Then you take care to solve the problems before they become too severe.
Some fields are just so ripe for theorization that one can keep theorizing indefinitely and not get started on real work.
Consider the problem of time series forecasting. Suppose you have a stream of numbers coming in, which represent some real world metrics, like CPU utilization on minute basis, or sales of a product on daily basis. Your job is to make a component to predict the next value of the metric.
This simply stated problem is such a ripe problem for theorization that you can spend days or weeks or months just surveying literature. From ARMA models, to ARIMA models, to STL model, to incorporating seasonality, you can read several books and not get started on real coding.
In such cases, you need to limit your study time, and start building soemthing so that you can get some real world experience, and only bookish knowledge.
In any non trivial system, there are various components interacting with each other in various combinations. Invariably, some of these components will misbehave. How should other components respond to a misbheaving component?
Your system's components also interact with the world outside: perhaps you have provided an API which your customers can use. Your customer code can awry and starting sending you requests in an inappropriate format. What should you do then?
We can handle misbehaving components in two ways: one is that we are forgiving about the input from the other component and try to do as good a job as possible. A web browser is a great example of this: even if you give it a malformatted HTML, it won't just refuse to render the web page. It will render in the best possible way possible given the invalid document that you gave. It is like a friend who tries to help you out despite your shortcomings.
On the other hand, we can be merciless: unless other components talk to us in a rigorously predefined language, we will refuse to function. We will crash or complain. A typical example of such an approach is compiler. Even if you miss a single semi colon, it will refuse to compile the program.
Examples of browser and compiler are two ends of a complete spectrum of the strategies that you can use to deal with incorrect inputs. The "right" approach depends on your use case, and it is important to get it right. Otherwise you may end up with a language like PHP where
"b" + "a" = "ba" but "10" + "a" = 10 and "10" + 10 = 20
causing all sorts of confusions.
My strategy is to have internal components be harsh on each other: you decided on a data interachange format, and if the producer of the data does not follow the format, the consumer crashes. The consumer does not try to cover for the bugs in the producer.
For example, in a typical use case, the UI takes the user input and populates some data in database in some predefined format. Some backend task needs to operate on this data and perform some activity. Now, what if there is a bug in the UI and the UI outputs the data in slightly incorrect format. Perhaps the UI does not provide the value of a required field. Should the backend assume some resonable default? Assuming something reasonable might ensure that the system will at least work. The answer is no. Between internal components, we do not forgive each other for mistakes. If someone makes a mistake, associated functionality comes to a halt.
The advantage of this approach is that if there is a bug in some component it comes to light at an early stage, enabling the engineers to resolve it. If other components start covering for it, the bug may remain uncovered for a long time.
Languages like Python allow for default values of parameters. Thus, a function definition may be
def my_function(a, b=v1, c=v2): passHere b and c are optional parameters whose default values are v1 and v2 respectively. These values will be used if you do not provide a value for these parameters. Now, the function may be used as:
def my_function(1, 2, 3)or
def my_function(1, 2)or
def my_function(1)
In the code the I wrote, optional parameters need strong justification. They should be optional in the sense that correct behavior would be guaranteed even if some of the optional parameters are missed. Perhaps they are hint for some performance optimization, or some very unusual settings.
Once in a code that I wrote, the default values were merely some "standard" values. A non standard value needed to be explicitly passed as argument, in absence of which standard value was used. As time passed and the product evolved, the use case for one of the non standard value surpassed the use case of the standard value. A new developer reasonable assumed that since the parameter is optional, the usual (early non-standard) value would be used as default. This led to a nasty bug, and a learning from the mistake, we abolished developers using default values unless there was a strong justification.
The situation is a little different when writing components which face external world. Even if some external client is not honoring the interface, not performing the functionality may be detrimental to your business. In such cases, you may wish to log the error, and let the client know, but continue the functionality for the time being. A typical example is Google search engines. If you type in something to search and Google believes you probably mean something else (may be because of a typo), it gives you search results according to what it thought you mean, and also lets you know that. So, Google is forgiving about the errors that external agent makes.
What is internal and what is external may depend on your company size and team dynamics. For a small team of 4-6 people, all the company's code may be internal and outside code (libraries, API users) would be external. For a company with many large teams, each working on a separate component, code within each team could be internal, while code developed by two different teams could be regarded as external.
Like all other ideas, they are general guideliness and not hard rules.
According to Feynman:
I received a telephone call one day at the graduate college at Princeton from Professor Wheeler, in which he said, "Feynman, I know why all electrons have the same charge and the same mass" "Why?" "Because, they are all the same electron!"
While one electron theory does not have a wide acceptance in scientific circles, the idea of oneness of things has been the guiding principle for Science.
"Ekam sad vipra bahudha vadanti", declares the Rigveda, composed several millenia before christ. It means that the truth is one, but knowledgeable people known it in different ways. Infact, the idea of oneness, or singularity is embedded deeply in the Hindu thought. The advaita (which literally means not-two) philosophy is one of prominent Hindu philosophies arguing that the soul is indistinguishable from the supreme reality (God). The aim of human life is to realize this truth.
Unity has been a guiding force in Physics too. We could have five fundamental forces: gravitational, electric, magnetic, strong nuclear and weak nuclear. Electric and magnetic forces were combined as one: electromagnetic force by the James Clerk Maxwell in 1873 (Damn it: these guys in nineteenth century without computers, aeroplanes and even electricity, were able to accomplish so much. And here we are, unable to move the needle with so much amenities!) Standard Model explains electromagnetic, strong nucler and weak nuclear forces, leaving us with just different forces.
Similar is the case with the constituents of matter. There such a huge variety of things in the world: the animals, the plants, rocks, soils, air, water, glass and so on. We now know that ultimately, all the matter is utlimately made of just around 100 elements. Dmitri Mendeleev gave his periodic table in 1869. (Say what you want about authoritarian regime of Vladimir Putin, but Russians have a scientific bent of mind, isn't it?), which put elements in a table so that their properties were a function of their position in the table. This was the culmination of decades of efforts to classify the elemnts in an insightful way.
It was also discovered that utlimately, each of these 100 or so elemnts are composed of just three constituents: electrons, protons and neutrons. Number of electrons, protons and neutrons determines what element would it be.
Even eletrons, protons and neutrons were then found to be composed of more fundamental particles: fermions and bosons. String theory posits that even these particles ultimately consist of strings. So, ultimately, all matter is strings, oscillating in myriad number of ways.
The spirit of unification extends to Biology too. Despite the multitudes of shapes and sizes of plants and animals that we see around us, theory of evolution tells us that ultimately all the organisms are derived from the same ancestory: some unicelullar organism that figured out how to multiply itself. It is humbling to think that you and the dog next to you have some common ancestor who breathed several million years go!
Why do we have a tendency to unify and why is it so successful? I think there can be two answers to this question: the first is that we have a limited capacity to process a large state, so we look to simplify the world by unification, so that we can understand it better. The second is that as "ekam sad vipra bahudha vadanti" above says, the world is inherently just one, some singularity, and so that is the way we are led to when we try to discover the truths of the world.
So, what does this have to do with the practice of programming? The answer is that we have to continuously look for opportunities to deduplicate code, information and systems. Why would we like to deduplicate? First, maintaining something at two places is a maintenance overhead. Second, it is likely that at some point you will forget to make changes at all the places, and that would lead to buggy code or inconsistent data.
Let's begin with a simple example. You may have a function like this:
def compute_average_height(heights): total = 0 count = 0 for height in heights: # If height is less than 1 feet or more than 8 feet 4 inch, # we consider data to be erroneous if height > 12 and height < 100: total += height count += 1 return total / countand you could have a similar function for weight:
def compute_average_weight(weights): total = 0 count = 0 for weight in weights: # If weight is less than 5 kg or more than 200 kg, # we consider data to be erroneous if weight > 5 and weight < 200: total += weight count += 1 return total / countPerhaps you wrote the function compute_average_height() first, and then you needed to write compute_average_weight(). The similarities between the two functions should immediately lead you to refactor the code, perhaps as following:
def compute_average(quantities, lower_threshold, upper_threshold): total = 0 count = 0 for quantity in quantities: if quantity > lower_threshold and quantity < higher_threshold: total += quantity count += 1 return total / count def compute_average_height(heights): return compute_average(heights, 12, 100) def compute_average_weight(weights): return compute_average(weights, 5, 200)
Apart from repetition in function, there may ba repitition between classes. At QGraph, we had a concept of campaign: A user could specify the segment (which is a set of users) and a message, press a send button, and push notifications would get delivered to the relevant users. Following seems like a good class for that.
class Campaign { int campaignId; int accountId; Segment segment; Creative creative; public void send() { } public void computeUsers() { } }
Sometime later, another requirement came up: we needed to send notifications not on the press of a button, but automatically to a set of users who met certain conditions. For example, we may be required to send a notification to the users who add a product to shopping cart, 1 day after they do so, unless they complete the purchase. We called them trigger campaigns since they were triggered by certain events. To solve this case, we made another class:
class TriggerCampaign { int campaignId; int accountId; Trigger trigger; Creative creative; public void send() { } public void computeUsers() { } }
Note that the method computeUsers() will be different from trigger campaigns, but send() would remain the same.
It is OK to code it up like this initially so that feature gets implemented and business improves. But immediately after that, you should take a look for removing duplication. In this case, there are various types of campaigns. We should have a class called Campaign which has the common features of various types of campaigns, and subclasses that implement specific types of campaigns. These subclasses can be called RegularCampaign and TriggerCampaign. Here is the refactored code:
class Campaign { int campaignId; int accountId; Creative creative; public void send() { } } class RegularCampaign extends Campaign { Segment segment; public void computeUsers() { } } class TriggerCampaign extends Campaign { Trigger trigger; public void computUsers() { } }
Apart from code duplication between methods and classes of the same project, there may be inter-project code duplications. For instance, we may wish to send a mail to some developers in case some extreme event happens:
try { // Do something } catch (MyExtremeEvent e) { send_email(e.getStackTrace()); }Now, presumably, the function send_email() is defined somewhere in the same class, or perhaps in the same project. However, various different projects may need such a function, and thus instead of replicating the method in various projects, it is good to have it in a project of its own, and then import the relevant class:
import com.mycompany.CommonUtils; CommonUtils utils = new CommonUtils(); try { // Do something } catch (MyExtremeEvent e) { utils.send_email(e.getStackTrace()); }
Other functionalities that could be put in a such a utilities class are popular conversions, such as time zone conversions. You can also put popular translations. Perhaps, given a transaction id, you need to find customer id, or given a customer id, need to find all the transactions by that customer. These functions may be needed across a wide array of projects.
Apart from duplication of code, there can be duplication of information too. For instance, you can have a writer of the file, which writes file with a particular filepath. A reader is supposed to read it from the same filepath. The writer and reader may be written by different teams, and could be in different programming languages. If you hard code the filepath in both these programs, it is a duplication of information. If you need to change the filepath, you need to make changes at two places.
How do we avoid this duplication? The way have I have found suitable is to store this common information in a database. I have a "settings" table which contains essentially two rows: component name and settings. I like settings to be json for easy parseability. Both reader and writer of the information read the settings for getting the filpath. For me the row in database looks like following:
| component_name | comonent_settings |
|---|---|
| my_component | {"filepath": "/path/to/my/file/filename.txt"} |
Fundamentally, comments are duplications: comments explain in English (or whatever language you write the comment in) what the code describes in a programming language. It is best if the flow of the code and the names of the variables are so clear that there is no need of a comment. However, there are often cases when this is not possible, and comments in natural languages are required in that case. As Martin Fowler says, "Comments are good smell, but they are too often used as deodorant"
Too often I have seen comments that are vacuous:
//Find the number of employees int len = getNumEmployees();
//Initialize arrayLength int arrayLength = 0
Vacuous comments are duplications that can simply be deleted.
Too often naming variables better can avoid comments. E.g.
#convert to cents b = a * 100 #add to total purchase value, increment num purchases p += b n += 1 #recompute average purchase value in cents av = p / n
is better written as:
order_in_cents = order_in_dollars * 100 total_purchase_in_cents += order_in_cents num_purchases += 1 average_purchase_value_in_cents = total_purchase_in_cents / num_purchases
As programming language become closer to natural languages (assembly language, C, Java, Python are progressivley closer to natural languages), the need for comments reduces since programming languages are less cryptic.
Conventions are powerful.  Imagine how hard it would be to drive each car had its own convention about the relative location of accelerator, brake and clutch.
It was news when the Japan Sanitary Equipment Industry Association, in January 2017, decided standardize the iconography used on the control panels of Japanese toilets. Before standardization, foreign tourists used to complain that they were unable to understand the controls, which operate features often not found in Western toilets.
In your company, you should have convention wherever possible. While you can make conventions for your own company, there are some conventions (sometimes called standards), which wider programming community has made. It is good to just piggyback on those conventions, and perhaps override some of them to suit your particular needs.
Here are some tips for adopting convention:
This may seem no brainer, but I have often seen people writing incorrect spellings. This may be unique to India where I have worked for last few years. Beautiful becomes beautifull, etc. One can argue that it is English which is incorrect, but we cannot do anything about it and we just have to learn correct English.
I once had an engineer who used to write updater as updator. I sympathize with him: if one who creates is creator then one who updates should be updater. Whenever I would ask him to correct the spelling, he corrected, but always made the spelling error again. It was too bad that he was working on a component called "Feed Updater". After seeing "updator", I myself started getting confused about the correct spelling. I finally gave him an ultimatum: if he ever miswrote updater as updator, he would have to write "updater" on a sheet of paper 100 times. Suddenly misspellings stopped.
Programming languages have their own conventions about variable names, class names, etc. In Python, variable names should be in snake case. Thus:
# This is correct num_students = 42 # This is incorrect numstudents = 42 # This is incorrect numStudents = 42
In Python class names are in UpperCamelCase:
# This is correct class MyClass: pass # This is incorrect class myClass: pass # This is incorrect class my_class: pass
Similarly there are conventions for various programming languages. If you are starting out, a good resource for conventions are style guides from Google. For instance look at,
Google Java Style GuideApart from these, Python has its own PEP8 standard, which you may wish to follow.
The important thing is to stick to a convention. So, that when you are manipulating a variable that talks about "maximum count", you don't have to remember what exactly that variable was: maxCount or maxcount or max_count.
The idea of conventions applies everywhere. Other places where I want consistent style is: naming repositories in github or bitbucket (should be words separated by dashes), naming branches in github or bitbucket (should be words separated by dashes), naming directories (should be words separated by dashes), keys in json data (camel case). Any place where you can let convention drive, do it, since that helps reduce the amount of state your brain needs to hold while doing real work.
- Further item in convention: date should be YYYY-MM-DD, not any other way - Timestamps should be stored in UTC
Large software companies of our times: Google, Facebook, Amazon etc are at the forefront of innovation in Computer Science. Because of their traffic, their systems experience scalability challenges not encountered by other, smaller companies. Further, unprecedented amount of user data that these companies have collected can be used in ways which was unthought of before. Need to analyse such large amounts of data and draw conclusions have spurred several innovative products from these companies.
While the ideas behind many of the innovations were known to the research community for long, these companies are the first to have the scale to be able to implemnet real system with those ideas.
For example, in 2003 and 2004, Google published two papers: "The Google File System" and "MapReduce: Simplified Data Processing on Large Clusters", in which they described novel ways (or rather, described the novel implementations of known ideas) to store and process large amounts of data. The key idea is that GFS was optimized to store and retrieve files of large size, while map reduce was a framework which enabled a programmar to write programs which could be parallelized easily. Thus, if the programmar wrote the programs in map reduce, he did not need to worry about parallelizing it: the framework take care of parallelizing it across many, potentially thousands of computers. Further, when running a program across thousands of computers, one needs to minimize data transfer across computers, do data transfers preferably between computers which are physically close to each other (so that data transfer is fast), and implement fault tolerance, because when there are thousands of machines running some program for tens of hours, it is highly likely that some machine would crash or have network problems.
The good thing about map reduce was that the framework took care of solving all these problems associated with writing parallel programs, and thus a programmer needed to worry about only the business logic associated with his needs.
Inspired by Google's paper, engineers at Yahoo did another implementation of map reduce, called it Hadoop and released it as open source software. As more and more internet companies came to vogue, they needed to analyze large amounts of data, and started using Hadoop for this. As such, Hadoop became the de-facto software for analyzing large amounts of data.
Now, while we wish all the best for your company, unless it is all about analyzing large data (like Qubole, Horton works, Cloudera or the like), you do not need to invest in Hadoop at all.
Implementing such a heavyweight solution in your just launched startup is suboptimal for several reasons:
I once had an employee who resigned from my company because he was starting his own company. His idea was to build an app where people would share their locations and meet each other serendipitously. Around a week before his last day, I asked him what he was doing. He replied he was learning hadoop, because large amounts of data would be generated from his app, and he needed to analyze it.
While learning about Hadoop is all good, justifying it because you will need it in your yet to be launched app is misplaced. You better launch the first version of your app as soon as possible.
I emphasize this point because too often I have seen technologists and business people alike to get carried away into implementing these technologies when they should not be doing so. Technologists are happy because they get to work on "cutting edge" technology and business people are happy because some awesome work seems to be getting done. This is as misplaced as it would be to take an air plane to go from Indira Nagar to Koramanagala (two neighborhoods a few miles apart). Aeroplanes are meant for longer distances and for shorter distances you are better off taking your car (or riding your bicycles to keep yourself and your environement healthy)
On the similar lines, sometimes engineers are enticed to use a technology because some large company uses it.
Facebook is famously written in PHP. PHP is the oldest main stream lanauges around to generate dynamic web pages, and gets you started on a project very fast. In 2004, when Facebook was started, it was the de-facto language to write web apps.
However, its performance very low compared to other lanauages. As they evolved, they faced severe performance problems. Being an engineering heavy company, they wrote HipHop compiler which compiled PHP code to C++. They later developed HipHop Virtual Machine to run PHP efficiently.
Since Facebook is a successful company, I have met people in 2015 arguing that PHP is good language to write your web app in because "Facebook uses it". In the opinion of those people, if you use PHP, there is an added advantage that you can use cool tools like HipHop compiler or HipHop virtual machine to speed it up!
Little do they realise that in 2017, there are at least half a dozen languages to choose from, which have more mature framework support, are more pleasure to write the code in, and are more performant at the same time.
It is of course important to take inspiration from large companies: some of the best engineers work in those companies and some very interesting developments happen there. The way to ignore the irrelevant lessons is to continously read about various technologies and always be curious about why things are doing in a certain way.
In Biology, when you trying to understand why some organisms are the way they are, you have to take into account the evolutionary path you have taken. Understand the form of organisms just on the basis of their environment or their place in the ecosystem makes up for only partial explanations.
Same holds true for the software development. The current state of any software is sum total of choices by individual developers. It depends on the team structures, time pressures faced by the developers when implementing, order in which features were developed, and the experience and aptitude of the developers involved. So, it is not wise to naively copy someone else's choice without knowing about what led them to make those choices.
- Write down specification - Ask for written evidence


New highs for Shami and Agarwal in Test rankings
Mohammed Shami and Mayank Agarwal played starring roles in India's big win over Bangladesh in the first Test in Indore.
• Liton, Abu Jayed move up for Bangladesh after Indore Test
India fast bowler Mohammed Shami and opening batsman Mayank Agarwal have reached career-best positions in the MRF Tyres ICC Test Player Rankings after contributing in an innings and 130-run victory over Bangladesh in the first Test in Indore.
Shami’s bowling figures of three for 27 and four for 31 have lifted him eight places to seventh position. His 790 rating points are the third best for an India pace bowler with only Kapil Dev (877) and Jasprit Bumrah (832) having recorded more points.
Agarwal has reached 11th position after his player of the match effort of 243 in India’s only innings. The 28-year-old has reached 691 rating points after scoring 858 runs in his first eight Tests. Only seven players have scored more runs than him in their first eight Tests – Don Bradman (1210), Everton Weekes (968), Sunil Gavaskar (938), Mark Taylor (906), George Headley (904), Frank Worrell (890) and Herbert Sutcliffe (872).
In other significant movements for India after they secured a 1-0 lead in the two-Test series, all-rounder Ravindra Jadeja has advanced four slots to reach joint-35th position among batsmen while fast bowlers Ishant Sharma (20th) and Umesh Yadav (22nd) have moved up one slot each. Off-spinner Ravichandran Ashwin remains among the top 10 bowlers while moving back to fourth position among all-rounders.
For Bangladesh, Mushfiqur Rahim’s knocks of 43 and 64 have helped him gain five places and reach 30th position while Liton Das has moved up from 92nd to 86th position. Among bowlers, fast bowler Abu Jayed, who took four wickets in Indore, has advanced 18 slots to take 62nd position after only six Tests.
Meanwhile, India strengthened their position in the ICC World Test Championship standings by reaching 300 points. They are yet to concede a point, having gained a full 120 points each in their three-Test home series against South Africa and two-Test series in the West Indies.
Each Test of the ongoing two-match series is worth 60 points since the 120 points up for grab in a series are evenly distributed over the number of matches in a series. The points range from 60 points for each match of a two-Test series to 24 for each match of a five-Test series.
Sri Lanka and New Zealand are on 60 points each after drawing their two-match series 1-1 while England and Australia are on 56 each after their five-match Ashes series ended 2-2. The West Indies and South Africa failed to get any points in their opening series.
Pakistan will play their first WTC series against Australia starting later this week. The first match of the two-Test series starts in Brisbane on Thursday while the second Test, a day-night fixture, will be played in Adelaide from 29 November.
The top two teams at the end of the league will play the final in the UK in June 2021 with the winners crowned the World Test Champions.
MRF Tyres ICC Test Player Rankings (as of 17 November, after the Indore Test)
Batsmen (top 10)
| Rank | (+/-) | Player | Team | Pts | Avge | Highest Rating |
| 1 | ( - ) | Steve Smith | Aus | 937 | 64.56 | 947 v SA at Durban 2018 |
| 2 | ( - ) | Virat Kohli | India | 912 | 54.35 | 937 v Eng at Southampton 2018 |
| 3 | ( - ) | K Williamson | NZ | 878 | 52.22 | 915 v Ban at Hamilton 2019 |
| 4 | ( - ) | C Pujara | India | 790 | 49.43 | 888 v SL at Nagpur 2017 |
| 5 | ( - ) | A Rahane | India | 759 | 43.66 | 825 v NZ at Indore 2016 |
| 6 | ( - ) | Henry Nicholls | NZ | 749 | 44.25 | 778 v Ban at Wellington 2019 |
| 7 | ( - ) | Joe Root | Eng | 731 | 47.91 | 917 v Aus at Trent Bridge 2015 |
| 8 | ( - ) | Tom Latham | NZ | 724! | 44.03 | 724 v SL at Colombo (PSS) 2019 |
| 9 | ( - ) | D Karunaratne | SL | 723 | 36.93 | 754 v SA at Colombo (SSC) 2018 |
| 10 | ( - ) | Rohit Sharma | India | 701 | 47.11 | 722 v SA at Ranchi 2019 |
Other selected rankings
| Rank | (+/-) | Player | Team | Pts | Avge | Highest Rating |
| 11 | (+7) | M Agarwal | India | 691*! | 71.50 | 691 v Ban at Indore 2019 |
| 30 | (+5) | M Rahim | Ban | 600 | 35.05 | 658 v Aus at Chittagong 2017 |
| 35= | (+4) | R Jadeja | India | 571! | 35.92 | 571 v Ban at Indore 2019 |
| 86 | (+6) | Liton Das | Ban | 394* | 24.00 | 398 v WI at Jamaica 2018 |
Bowlers (top 10)
| Rank | (+/-) | Player | Team | Pts | Avge | Highest Rating |
| 1 | ( - ) | Pat Cummins | Aus | 908 | 21.45 | 914 v Eng at Old Trafford 2019 |
| 2 | ( - ) | Kagiso Rabada | SA | 839 | 22.50 | 902 v Aus at Port Elizabeth 2018 |
| 3 | ( - ) | Jason Holder | WI | 814! | 27.26 | 814 v India at Jamaica 2019 |
| 4 | ( - ) | J Bumrah | India | 802* | 19.24 | 835 v WI at Jamaica 2019 |
| 5 | ( - ) | J Anderson | Eng | 798 | 26.94 | 903 v India at Lord's 2018 |
| 6 | ( - ) | Trent Boult | NZ | 795 | 27.35 | 825 v Eng at Lord's 2015 |
| 7 | (+8) | M Shami | India | 790! | 26.95 | 790 v Ban at Indore 2019 |
| 8 | (-1) | Neil Wagner | NZ | 785 | 27.51 | 801 v Ban at Wellington 2019 |
| 9 | (-1) | V Philander | SA | 783 | 22.16 | 912 v India at Johannesburg 2013 |
| 10= | (-1) | Kemar Roach | WI | 780! | 26.94 | 780 v India at Jamaica 2019 |
| ( - ) | R Ashwin | India | 780 | 25.31 | 904 v Eng at Mumbai 2016 |
Other selected rankings
| Rank | (+/-) | Player | Team | Pts | Avge | Highest Rating |
| 20 | (+1) | Ishant Sharma | India | 665 | 33.44 | 677 v WI at Jamaica 2019 |
| 21 | (-1) | Nathan Lyon | Aus | 657 | 32.30 | 774 v Eng at Adelaide 2017 |
| 22 | (+1) | Umesh Yadav | India | 623 | 31.45 | 624 v SA at Ranchi 2019 |
| 62= | (+18) | Abu Jayed | Ban | 257*! | 36.06 | 257 v India at Indore 2019 |
All-rounders (top five)
| Rank | (+/-) | Player | Team | Pts | Highest Rating |
| 1 | ( - ) | Jason Holder | WI | 472! | 472 v India at Jamaica 2019 |
| 2 | ( - ) | R Jadeja | India | 417 | 438 v SL at Colombo (SSC) 2017 |
| 3 | ( - ) | Ben Stokes | Eng | 387 | 411 v Aus at Headingley 2019 |
| 4 | (+1) | R Ashwin | India | 318 | 492 v Eng at Mohali 2016 |
| 5 | (-1) | V Philander | SA | 315 | 377 v SL at Galle 2018 |
*indicates provisional rating; a batsman qualifies for a full rating after playing 40 Test innings; a bowler qualifies for a full rating when he reaches 100 Test wickets.
!indicates career-highest rating
For more information on player rankings, please click here.


|
MiniBot
2019/2020
|
This is the code behind MiniBot for the 2019 offseason.
This code can be "installed" in one of two ways. First, is via an official release:
These are the steps:
The second way is to use rolling release / waterfall. Just do the steps above, but use git to clone the master branch instead of grabbing the latest release.
NOTE: 5024 members should always use the second method.
To add comments that are pushed to the website, follow the javadoc guidelines.
To build the documentation, make sure you have doxygen installed, then run:
The documentation will the be automattically pushed to the website for this repo.
5024 members should not worry about this because the documentation is automatically deployed on every push, and once per day by travis-ci.
Pull requests is our prefered method of merging code. For a PR to be merged, it must:
When deploying code to our robots we have a problem where, on the first few tries, the deployment fails due to not being able to find the RIO. Just keep trying, and it will eventually work.
This codebase is built and tested by the 5024 programming team with help from our mentors:


Patients and Room Time statistics
Please input "From:" and "To:" date
Patient Time at Hospital (In Minutes)
| Total No. of Patients
| Avg Time per Patient
| Min Patient Time |
Max Patient Time |
{{#if hospitalStats}}
{{#each hospitalStats}}
| {{totalPatients}} |
{{millis2mins avgInTime}} |
{{millis2mins minInTime}} |
{{millis2mins maxInTime}} |
{{/each}}
{{else}}
| No data found |
{{/if}}
Location-wise Time split (In Minutes)
| Location
| Patient Count
| Time Spent (Minutes) |
Wait Time before Entering (Minutes) |
| Avg |
Min |
Max |
Avg |
Min |
Max |
{{#if locationStats}}
{{#each locationStats}}
| {{location}} |
{{visitCount}} |
{{millis2mins avgElapsedTime}} |
{{millis2mins minElapsedTime}} |
{{millis2mins maxElapsedTime}} |
{{millis2mins avgWaitTime}} |
{{millis2mins minWaitTime}} |
{{millis2mins maxWaitTime}} |
{{/each}}
{{else}}
| No data found |
{{/if}}
{{/partial}}
{{>qubercomm/nav-top}}
{{>qubercomm/nav-left}}
{{>qubercomm/wrapperfinder}}


_Coyote_Ugly_ (PG-13) no stars (out of ****)
To give credit where credit is due, the team over at Disney sure knew how to market _Coyote_Ugly_. Five women wearing the best "fuck me" expressions they could get away with on a PG-13 ad pout seductively on the poster, huddled up very close together as the tagline teases, "Tonight, they're calling the shots." The trailer takes the pandering a step further, showing these women in action at the titular New York nightspot, where not only do they serve the drinks, they also serve as the in-house entertainment: dancing atop the counters, groping each other, lighting fires, and--on really special occasions--spraying each other with water and splashing about.
With a promotional campaign like that, the studio had no trouble attracting long lines of recruited seatfillers to sweeten the press screening audience. But as tantalizing as the advertising is, it begs one eensy-weensy question: just what exactly is this film _about_? As the film as it wheezed its hackneyed way to its clichéd conclusion, it became plainly obvious why Disney went out of its way to skirt (yes, pun intended) the issue: _Coyote_Ugly_ is, quite simply, one of the corniest movies I have ever seen.
While there are a few high-energy bar scenes (more on those later) strategically placed to wake dozing audiences along the way, _Coyote_Ugly_ is actually the story of Violet Sanford (Piper Perabo), a 21-year-old from small-town New Jersey who moves to New York City in hopes of becoming a songwriter. But reality comes crashing down hard for this bumpkin, and soon she finds herself with only a couple of dollars and a lot of unwanted demo tapes to her name. Enter Zoe (Tyra Banks), Cammie (Izabella Miko), and Rachel (Bridget Moynahan), the women of Coyote Ugly--whom Violet encounters at an all-night diner as they celebrate the imminent departure of Zoe, who is off to (no joke) law school. Some convenient turns of the plot later, Violet (now nicknamed "Jersey") finds herself behind and on top of the counter at the insanely popular saloon under the watchful eye of tough-as-nails owner Lil (Maria Bello, who must now be kicking herself for leaving _ER_)--and the amorous watch of Kevin O'Donnell (Adam Garcia), a fry cook desperately smitten with Violet.
Anyone familiar with the oeuvre of producer Jerry Bruckheimer (as in a number of his efforts, the director here, music video vet David McNally, is but a faceless puppet) knows that action is where his interests and strengths lie, not anything resembling human emotion. So--all salacious reasons aside--_Coyote_Ugly_ only exhibits any signs of life during the slickly staged and edited bar scenes. These are the only scenes with real energy and spark, and--not surprisingly--Bruckheimer and McNally seem the slightest bit interested in what's going on (audiences will likely share that sentiment).
Unfortunately, it's the "emotion" that drives the script by Gina Wendkos (rewritten many times over by a number of uncredited scribes, including Kevin Smith--who, I must stress, is _not_ responsible for the labored comic book references in the film). The press notes call the film "a sexy romantic comedy," which in this case means trotting out all the usual clichés in Violet and Kevin's romance. Violet's ambition drives a wedge between them, as does his lack of it; and there's the trusty climactic moment where she catches him in a not-what-it-seems moment with an unknown blonde. Also intended to add an emotional dimension is Violet's relationship with her widowed father, toll booth attendant Bill (John Goodman). Goodman is funny and warm, but he's at the mercy of a script riddled with such "dramatic" dialogue such as "This is the first time I've ever been ashamed of you!" and the powerful "But you're my daughter!"
Then again, just about everything in _Coyote_Ugly_ is hard to believe, the most unbelievable being the fact that a worldwide talent search resulted in the casting of Perabo. Granted, her character already lacks credibility as written--Violet believes she's cursed with "stage fright DNA" (her deceased singer mother had the same problem); the great "talent" we're supposed to respect and root for is her ability to churn out assembly line bubblegum pop--but Perabo does nothing to remedy that.  I don't know what exactly you call that, but I know it's not called "acting"...
...making her the perfect "star" to anchor _Coyote_Ugly_, which practically dares the every viewer not to hang his or her head in disbelief at every turn. My breaking point finally came around midfilm, when Violet, on the roof of her apartment building, guitar and keyboard in tow, struggles to write a folksy ballad. Suddenly, her concentration is broken by the hip-hop music booming from an apartment across the street. After a pause, she starts singing and has a eureka--her lyrics fit the beat! Excited, she runs to her keyboard and starts playing along. What talent! What brilliance!
Michael Dequina<EMAIL_ADDRESS>|<EMAIL_ADDRESS>|<EMAIL_ADDRESS>|<EMAIL_ADDRESS>Mr. Brown's Movie Site: http://www.moviereportsite.com CinemaReview Magazine: http://www.CinemaReview.com on ICQ: #25289934 | on AOL Instant Messenger: MrBrown23
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{% extends "layout.html" %} {% block page_title %} GOV.UK prototype kit {% endblock %} {% block content %} Paying online for an offline service Alpha prototypes Ad hoc User enters amount User single fee Admin tool Unique payments User payment pages Admin tool {% endblock %}


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An attractive town and a large port on Denmark's eastern shore of Jutland. It is about 100 nm south of Artus.
Position 55°42'N, 009°33'E
The marina is on the northern side of the entrance to the port.


Reports any anonymous classes which may safely be made into a named static inner class.
An anonymous class may be static if it doesn't explicitly reference its enclosing instance or local classes from its surrounding method.
A static inner class does not keep an implicit reference to its enclosing instance.
This prevents a common cause of memory leaks and uses less memory per instance of the class.


Normal life affected by morning showers
Region recorded 7. 7 mm of rainfall
by Special CorrespondentNormal life was affected in Puducherry due to intermittent rain on Friday.
Continuous rain for almost three hours on Friday morning resulted in waterlogging in Bussy Street, Lenin Street, Kamaraj Nagar, Uppalam, Reddiyarpalayam and Marimalai Adigal Salai.
According to an official in the Public Works Department, the region recorded 7. 7 mm of rainfall till 8. 30 a.m. Places such as Bahour, Pathukannu, Moolakulam, Thirukanur and Sedarapet received good rainfall in the morning hours, the official said. A breach in the sewage network at Thiruvalluvar Salai near Uppalam caused hardship to residents and motorists.
Office-goers braved the heavy downpour that lasted till about 10 a.m to reach their places of work.


I'm keen to help you integrate your USB, HID, and other devices with computers, tablets, and phones. I can help you build cross-platform apps to communicate with your device or firmware. I hope that you will choose Device.Net as the framework for integrating your connected device with a host. If you manufacture devices or develop firmware for device boards, I would like to offer you some free time. Hit me up on LinkedIn or Twitter. You will need to send me one of your devices, and we can negotiate some of my time as a starting point.
Device.Net has been tested with several USB and HID devices, so most of the functionality you will need already exists. However, if you have issues with getting something to work, there are some steps you need to take. Firstly, I ask that you clone the repo and modify one of the samples or unit tests to meet your needs. If that step fails, please follow on.
Specify The Operation
You need to specify the operation that you are trying to achieve. For example, the operation might be to turn on a light connected to the device. It could turn the volume up or down, upgrade the firmware, or calculate the decimal places of pi. You need to specify what you are trying to achieve by connecting to the device.
Define Your Message Contract
A Message Contract contains a request to the device and a response from the device. The contract reflects the operation you need to perform. Device.Net sends the request from the host to the device and receives the expected response. This should perform the operation on the device. Both the request and response are arrays of bytes (byte[]
). This is the fundamental requirement to move forward. On your side, the device will receive some data, process it, and then send it back as the response to Device.Net. The contract specifies that given request x, the device will respond with response y. Use a tool like usblyzer to capture the traffic between your device and the host.
The response part must be a valid, thoroughly tested response from the device on your side. You must know that the device responds with the expected result when it receives the given request.
Note: if the protocol is USB, you need to specify which interface and pipe address to use. For example, does it use Bulk, Control Transfer, or interrupt?
But, my device doesn't always send back the same response...
That's fine. Just allow for this in the integration test.
Write a Failing Integration Test
As a starting point, you need to define a contract and write it into a failing Integration Test. Here is an example. The request only has five bytes of data, but the response verifies several properties about the response and the device.
[TestMethod]
public async Task TestWriteAndReadFromNanoHid()
{
//Send the request part of the Message Contract
var request = new byte[NanoBufferSize];
request[0] = 63;
request[1] = 62;
request[2] = 1;
request[3] = 1;
request[4] = 1;
var filterDeviceDefinition = new FilterDeviceDefinition(productId: 4112, vendorId: 10741);
var integrationTester = new IntegrationTester(filterDeviceDefinition.GetHidDeviceFactory(loggerFactory));
await integrationTester.TestAsync(request, (result, device) =>
{
Assert.AreEqual(NanoBufferSize, result.Data.Length);
Assert.AreEqual(63, result.Data[0]);
Assert.AreEqual(62, result.Data[1]);
var windowsHidDevice = (HidDevice)device;
//TODO: share this with UWP
Assert.AreEqual(DeviceType.Hid, device.ConnectedDeviceDefinition.DeviceType);
Assert.AreEqual("AirNetix", device.ConnectedDeviceDefinition.Manufacturer);
Assert.AreEqual(filterDeviceDefinition.ProductId, device.ConnectedDeviceDefinition.ProductId);
Assert.AreEqual(filterDeviceDefinition.VendorId, device.ConnectedDeviceDefinition.VendorId);
Assert.AreEqual("STS-170", device.ConnectedDeviceDefinition.ProductName);
Assert.AreEqual(NanoBufferSize, device.ConnectedDeviceDefinition.ReadBufferSize);
Assert.AreEqual(NanoBufferSize, device.ConnectedDeviceDefinition.WriteBufferSize);
Assert.AreEqual("000000000001", device.ConnectedDeviceDefinition.SerialNumber);
Assert.AreEqual((ushort)1, device.ConnectedDeviceDefinition.Usage);
Assert.AreEqual((ushort)65280, device.ConnectedDeviceDefinition.UsagePage);
Assert.AreEqual((ushort)256, device.ConnectedDeviceDefinition.VersionNumber);
Assert.AreEqual(NanoBufferSize, windowsHidDevice.ReadBufferSize);
Assert.AreEqual(NanoBufferSize, windowsHidDevice.WriteBufferSize);
return Task.FromResult(true);
}, NanoBufferSize);
}
In the example above, the test will fail if any of the data does not match the contract's response part. You may need to make allowances for values that may change on each call.
Once I have this code and your device, I have what I need to investigate issues, but without this, I cannot move forward.
Note: the test does not need to compile. If you need to add pretend APIs that are missing. That is fine.
Send Your Device
Please send your device via a shipping service that delivers to post office boxes. I will send you the details of that for shipping purposes.
I normally work with devices that already have firmware installed. I expect that I can plug in the device and run your integration test. The integration test should fail so I can see what is going wrong. This is the optimal scenario, and I will spend some time trying to fix the issues that I see.
Devices Without Firmware
Sometimes, your device may not come with preloaded firmware. This is OK, but please refer back to the Message Contract as the starting point. I need an integration test with a defined message contract. I can install the firmware on your device, but I need confirmation that it complies with the message contract on your side. When Device.Net sends the request part of the contract to the firmware, the firmware needs to respond with the expected result.
Start with the Message Contract and work backward to the firmware. Have you clearly defined the contract? Does the firmware respond with the expected response when it receives the given request? If the answer is yes on both accounts, I will install the firmware with your instructions.
Lastly, please understand that I don't know anything about microcontrollers (MCU) or DFU, and I had to Google these terms. Please don't assume that I know anything about the firmware side of USB connectivity. If the instructions are not crystal clear and easily replicable, I will quickly burn the free time negotiated.


Click on the submit button and fill in details on the length of the base,height and hypotenus to know if your triangle is equilateral ,isosclese ,scalene or not a triangle.


Group Members:
Think about all the proverbs. Discuss their meaning with your group. Then, discuss the questions as a group. Each group member should submit a copy of the group’s answers.


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schoology
Businessmodel of Schoology
Customer Segments
Schoology targets three customer segments: K-12 level schools, higher education institutions and corporations, individually serving tutors, teachers, professional instructors, students, parents and advisors.
The Company claims to have more than 12 million individual users in more than 130 countries worldwide. The US, where Schoology serves customers across all 50 states, is the Company’s largest market by far, accounting for almost 78% of the Company’s web traffic. Its next largest contributor to web traffic is Mexico with around 5.5%.
Among its customers are Colorado school district Cherry Creek Schools, private coeducational higher education body Lancaster Bible College, Greenwich Public Schools and the Palo Alto Unified School District.
Value Propositions
Schoology provides value to its users through the functionality of its social learning platform. The Company’s products and tools allow teachers, students and parents to collaborate, interact and monitor progress more easily and accurately, and are available free of charge.
The Company’s premium analytics and data monitoring tools add additional insights into classroom performance.
It also provides a range of integrated native apps that allow users to use the functionality of popular productivity apps such as Evernote and Google Drive from within the Schoology system.
Channels
Schoology is accessible via the Company’s mobile and desktop websites at www.schoology.com. The platform can also be accessed on mobile and tablets through iOS, Android and Amazon Kindle Fire apps.
Customer Relationships
The Schoology platform is largely self-service, with users able to register independently via the Company’s website. Both students and parents, however, are required to have an access code, provided by the teacher or instructor, before they can register.
Premium enterprise packages must be purchased from members of the Schoology sales team, which can be contacted either online or over the phone. Once registered and set up, users are able to use the Schoology platform’s full range of tools, and can purchase additional paid-for add-ons.
Schoology makes a range of support resources available to users through its website, including webinars, presentations, product information and videos. The Company also updates its customers through its blog and interacts with them directly through events and social media, including Facebook, Twitter, LinkedIn and Pinterest accounts.
Key Activities
Schoology develops and operates a cloud-based learning management system targeted at K-12 schools, higher education institutions, and corporations. The Company’s platform aims to bring a social, collaborative aspect to education and make it easier to track student progress.
It allows teachers and tutors to create content, design lesson plans, maintain attendance records, and create online homework drop boxes; and enables students and educators to collaborate and interact more easily.
In addition to offering a free, basic package the Company also provides a paid-for, premium enterprise package that includes analytics and data integration tools.
The Company also collaborates with a range of integration partners to increase the functionality of its platform.
Key Partners
Schoology partners with a number of companies form within the tech and education communities. The Company has partnerships with educational institutions, including a strategic alliance with Colorado State University. Schoology has released an API through which it has gained a network of integration partners, comprising technology companies and software and app developers, with which it has collaborated to provide native versions of popular apps that can be used directly from within the Schoology platform. T
his includes prominent tech names such as Evernote, Google Drive, YouTube and Microsoft OneDrive, as well as specifically education-focused companies such as Khan Academy, Turnitin and eduCanon.
The Company also has data exchange integration partnerships with eSchoolPlus and Tools4ever. Schoology also operates a network of authorised resellers that assist the Company in marketed its platform in new and existing markets.
Key Resources
Schoology’s key resources are its software platform, its IT infrastructure, its personnel and its integration partners. The platform’s community of users could also be considered key resources as they are responsible for much of the platform’s content.
Cost Structure
Schoology incurs costs in relation to the development of its software platform, maintenance of its IT infrastructure, retention of its personnel and management of its partnerships.
Revenue Streams
Schoology operates under a freemium revenue model, providing its basic platform to users free of charge with the option of purchasing paid-for premium add-ons and extra features – such as custom branding and support packages – as well as enterprise level packages that include advanced analytics and data integration tools.
Schoology’s enterprise package, aimed at companies and institutions, appears to be its main revenue stream.
However, the Company does not disclose its pricing model on its website nor does it publicly disclose its financial results. Research suggests that the Company’s paid-for enterprise solution appears to be negotiated directly with Company representatives. Some internet sources suggest that the enterprise package is priced at $10 per user as a one-time fee.


UC Switch is coming to your area in March 2018
Universal Credit has been introduced to give you the
support you need to find and progress in work. We want
you to be able to benefit from all the positives that work
brings. This guide will help you do that and covers the
following areas:
Your responsibilities
When you claim Universal Credit there are a number of
activities you become responsible for in order to receive
your payment. You can get more information about
Universal Credit online at www.gov.uk/universalcredit
{% if (benefit_WTC or benefit_CTC) and not (benefit_JSA or benefit_ESA or benefit_IS or benefit_HB) %}
{% include "includes/responsibilities/1a.html" %}
{% endif %}
{% if benefit_JSA and not (benefit_WTC or benefit_CTC or benefit_ESA or benefit_IS or benefit_HB) %}
{% include "includes/responsibilities/1b.html" %}
{% endif %}
{% if benefit_ESA and not (benefit_WTC or benefit_CTC or benefit_JSA or benefit_IS or benefit_HB) %}
{% include "includes/responsibilities/1c.html" %}
{% endif %}
{% if (benefit_IS or benefit_HB) and not (benefit_WTC or benefit_CTC or benefit_JSA or benefit_ESA) %}
{% include "includes/responsibilities/1d.html" %}
{% endif %}
{% if (benefit_WTC or benefit_CTC or benefit_HB) %}
{% include "includes/responsibilities/2a.html" %}
{% endif %}
{% if benefit_JSA and not (benefit_WTC or benefit_CTC or benefit_ESA or benefit_HB or benefit_IS) %}
{% include "includes/responsibilities/2b.html" %}
{% endif %}
{% if (benefit_ESA or benefit_IS) and not (benefit_WTC or benefit_CTC or benefit_HB)%}
{% include "includes/responsibilities/2c.html" %}
{% endif %}
{% if benefit_WTC %}
{% include "includes/responsibilities/3a.html" %}
{% endif %}
{% if benefit_CTC and not (benefit_WTC or benefit_JSA or benefit_ESA or benefit_HB or benefit_IS) %}
{% include "includes/responsibilities/3b.html" %}
{% endif %}
{% if (benefit_JSA or benefit_ESA or benefit_IS) and not (benefit_WTC or benefit_CTC or benefit_HB) %}
{% include "includes/responsibilities/3c.html" %}
{% endif %}
{% if benefit_HB %}
{% include "includes/responsibilities/4a.html" %}
{% endif %}
{% if (benefit_WTC or benefit_CTC or benefit_JSA or benefit_ESA or benefit_IS or benefit_HB) %}
{% include "includes/responsibilities/5a.html" %}
{% endif %}
{% if (benefit_WTC or benefit_CTC or benefit_ESA or benefit_IS or benefit_HB) and not benefit_JSA%}
{% include "includes/responsibilities/6a.html" %}
{% endif %}
{% if benefit_JSA %}
{% include "includes/responsibilities/6b.html" %}
{% endif %}
What you can do to prepare
Activities you can do now to help your switch to Universal Credit;
- You will need a bank account that you can make payments, from as you’ll need to pay
your own rent etc. If you have a partner you may want to consider a joint account.
- You will need to provide identification for your new claim. You could do this now by
registering online with GOV.UK Verify. If you can verify yourself through this website
you may not need to attend a Jobcentre to bring in your identification.
- You will need an email account so you could set one of these up now.
- You could use the online budgeting support tool to help plan for moving to monthly payments.
If you require extra support in applying for Universal Credit this will be available
in Jobcentre Plus offices and other local support organisations.
{% if benefit_WTC or benefit_CTC or benefit_IS or benefit_HB %}
{% include "includes/questions/header.html" %}
{% endif %}
{% if benefit_WTC or benefit_CTC or benefit_IS or benefit_HB %}
{% include "includes/questions/1a.html" %}
{% endif %}
{% if benefit_WTC or benefit_CTC or benefit_IS or benefit_HB %}
{% include "includes/questions/1b.html" %}
{% endif %}
{% if benefit_IS and not (benefit_WTC or benefit_CTC or benefit_HB) %}
{% include "includes/questions/1c.html" %}
{% endif %}
{% if benefit_CTC or benefit_WTC %}
{% include "includes/questions/1d.html" %}
{% endif %}
{% if not benefit_IS %}
{% include "includes/questions/1e.html" %}
{% endif %}


Get final stats
Show header
Save to mongodb
Print file name
State:
Parameter
Value
Player
Kills
Deaths
Assists


Download Rc Cup Logo Background. You can download in.ai,.eps,.cdr,.svg,.png formats. Part of the motoamerica rc cup, the ktm rc cup series consists of several races across a multitude of terrains and environments and is designed to test both the mettle and spirit of the drivers.
✓ free for commercial use ✓ high quality images. Get ideas and start planning a great logo shows the world what you stand for, makes people remember your brand. View our portfolio of cupcake logos.
R$1,600 brl (~$731.53 usd) are spread among the teams as seen below.
Nhl glory (#/10) adds an embedded chrome nhl logo and can be found signed. Want to be the envy of gamer's worldwide? You can download in.ai,.eps,.cdr,.svg,.png formats. Logo cdr cup logo cdr cup cdr cup logo drink symbol coffee icon coffee cup element mug emblem tea isolated illustration and painting decoration white food and drink modern football decorative artistic no.


Gecode::MemoryManager Class Reference
List of all members.Detailed Description
Manage memory for space.
Definition at line 134 of file memory-manager.icc.
Public Member Functions | |
| MemoryManager (void) | |
| Constructor initialization. | |
| MemoryManager (MemoryManager &mm) | |
| Constructor during cloning mm. | |
| ~MemoryManager (void) | |
| Release all allocated heap chunks. | |
| void * | alloc (size_t s) |
| Allocate memory of size s. | |
| size_t | allocated (void) const |
| Return how much memory has been allocated. | |
| template<size_t s> | |
| void * | fl_alloc (void) |
| Allocate free list element of size s. | |
| template<size_t > | |
| void | fl_dispose (FreeList *f, FreeList *l) |
| Release all free list elements of size s between f and l (inclusive). | |
| void | reuse (void *p, size_t s) |
| Store for reusal, if of sufficient size for free list. | |
| void * | reusealloc (size_t s) |
| Try to allocate from slack. | |
Classes | |
| class | ReuseChunk |
| Memory-chunks for reusing slack memory. More... |
Constructor & Destructor Documentation
|
|
Constructor initialization.
Definition at line 323 of file memory-manager.icc. |
|
|
Constructor during cloning mm.
Definition at line 329 of file memory-manager.icc. |
|
|
Release all allocated heap chunks.
Definition at line 338 of file memory-manager.icc. |
Member Function Documentation
|
|
Allocate memory of size s.
Definition at line 259 of file memory-manager.icc. |
|
|
Return how much memory has been allocated.
Definition at line 254 of file memory-manager.icc. |
|
|
Allocate free list element of size s.
Definition at line 379 of file memory-manager.icc. |
|
|
Release all free list elements of size s between f and l (inclusive).
Definition at line 392 of file memory-manager.icc. |
|
|
Store for reusal, if of sufficient size for free list.
Definition at line 353 of file memory-manager.icc. |
|
|
Try to allocate from slack.
|
The documentation for this class was generated from the following files:
- gecode/kernel/memory-manager.icc (Revision: 3525)
- gecode/kernel/memory-manager.cc (Revision: 3188)


Cool theme bro
I love Debra and Ash and want them to have the best lives
Squirtle
Charmander
Bulbasaur
Drag Me Around!
Resize Me!


transmission
Transmission is a simple torrent client.
Transmission isn't a command, but a set of commands. See the pages below.
More information: home page
- Show the tldr page for running Transmission's daemon:
tldr transmission-daemon
- Show the tldr page for interacting with the daemon:
tldr transmission-remote
- Show the tldr page for creating torrent files:
tldr transmission-create
- Show the tldr page for modifying torrent files:
tldr transmission-edit
- Show the tldr page for getting info about torrent files:
tldr transmission-show
- Show the tldr page for the deprecated method for interacting with the daemon:
tldr transmission-cli


Mold, bugs and roaches: Residents could be forced out of New Jersey public housing building
by WABCNEWARK, New Jersey (WABC) -- An apartment building in Newark is so moldy and bug-infested that the city of Newark could rule it unfit for human habitation.
William Willis is raising two young sons in the Stratford Place public housing building. He says his children sleep in a cold bedroom among mice.
But his family and the other residents may not be there for long. A judge may force them out Thursday because the conditions in the building are so bad.
Despite problems like holes in the wall, stairs falling apart, exposed wires and missing smoke detectors, the company that owns the building simply chose to paint the wall of a hallway on Wednesday.
But these problems can't be painted over.
The city of Newark released the following statement:
"Inspectors found numerous violations, including rodents, roaches, mold, broken emergency doors, a broken elevator and non-working smoke detectors. The city filed charges against the landlord and if they are found guilty they will be required to close the building and move the tenants at their expense."
The landlord could not be reached for comment.


IMMERSIONS OF SYMMETRIC SPACES
by
EDMUND FRANCIS KELLY
B. Sc., Queen's University
Belfast, N. Ireland (1965)
SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY
June 1970
Signature of Author tees CLS CTR ance ehocesascces ee eerweern sone / Department of Mathematics, “June 1, 1970
Certified by eevees eo#peseasteeseneteeoee ff Thesis Supervisor
e@eeeteeeeeoerseeaeo greece sr sree neeranas
” wn wm Accepted by COOP O Oe meme mewn e ene tama interests seaseareesees ~ Archives Chairman, Departmental Committee mass. INST. Tega on Graduate Students
JUN 3.0 1970


Trump Accuses NY Attorney General of 'Mischaracterizing' Settlement Over Foundation's Donations
The New York Supreme Court has ordered US President Donald Trump to pay a $2 million penalty for misusing funds from his charitable foundation for his own interests, including during the 2016 presidential campaign.
Trump said Thursday that New York Attorney General "is deliberately mischaracterizing this settlement for political purposes".
New York Attorney Letitia James filed a lawsuit against the Donald J. Trump Foundation in June 2018, arguing that the organization used charity funds for Trump's own personal, business and political interests such as the 2016 presidential campaign.
As part of the settlement, Trump has admitted to misusing Trump Foundation funds and has agreed to restrictions on future charitable service and constant reporting to the New York Attorney General if he creates a new charity.
In addition, the office of New York Attorney Letitia James said earlier on Thursday the settlement requires mandatory training for Trump's children, Donald Trump Jr., Ivanka Trump and Eric Trump in order to ensure this type of illegal activity does not happen again.


I recently tried to install Cyanogenmod 12.1 on my LG Optimus Pro (I bought an unlocked one on Amazon a while ago… it's an AT&T phone, but works fine with my T-Mobile SIM card).
I made a lot of mistakes over the course of a week, so this is one of those here's-what-finally-worked posts for my own future reference, as well as anyone else in the same boat.
Typical disclaimer: I'm not at fault if this stuff ruins your device. Flashing phones is not for the faint of heart.
One cool thing about this process, though, is that in theory you should be able to do all of these steps right from your phone (I took some detours that necessitated a computer). So unless I say otherwise, do all of this stuff right on your device:
This was a little trickier than usual:
Download and install the towelroot APK file. You will need to enable installing apps from untrusted sources---the phone will take you to the right place in the settings to turn this on if you just try to install it.
Install Superuser
AT&T is pretty obnoxious with this one; you can't actually boot into recovery unless you first unlock the bootloader.
Install BusyBox
Open BusyBox, and click Install
Install FreeGee
This last step caused me all kinds of pain. The first time I installed it, none of the buttons would work. I never quite figured out an easy solution for this, and I wound up doing something silly (see the Detour section below). In the long run, I reset the phone to its stock condition, and then all of a sudden FreeGee worked just fine. If you find yourself in the same scenario, hopefully you can find a less drastic solution. But flashing the stock ROM should do it if nothing else does.
I actually had some problems with the latest snapshot (as of this post, it was the 2015-10-07 one): it couldn't recognize my SIM card. This may have something to do with me being on T-Mobile, and the phone was designed for AT&T. But I haven't had any problems with the nightly, so I'd recommend going with that if there isn't a newer snapshot.
Download the latest nightly build here. The one I used was added 2016-03-02.
Download whatever set of Google Apps you prefer from OpenGApps. As this guide is for CM 12.1 on the e980, you'll want the ARM Platform, and apps geared for 5.1. I went with the nano version, but I think any of them should be fine.
The e980 is a little tricky to get into recovery, even if you've set it up correctly. Restart the phone, and hold the volume up button as it starts up; hold the power button as well as soon as you see the LG screen. I think in theory you're supposed to hold the power button with the volume up button from the beginning, but for that seemed to force the phone to keep boot cycling.
Do a factory reset
Flash the CM 12.1 zip that you downloaded
Flash the GApps zip as well
Reboot the phone
There's a bug in CM 12.1 (again, as of this post) that breaks audio in phone calls. Before you bother installing this, though, it would be a good idea to test and see if you can call someone. If you're a T-Mobile customer and you can't hear anything, you'll want to download the patch zip file here. You'll probably need to do something different if you're not on T-Mobile, though, but this is where my helpfulness ends (I ran across different solutions for different carriers as I googled around).
You'll also need to change some settings on the phone before you reboot into recovery again. Download BuildProp Editor, and make sure your settings match these:
persist.audio.handset.mic.type=digital
persist.audio.dualmic.config=true
persist.audio.fluence.voicecall=true
persist.audio.handset.mic=dmic
persist.audio.fluence.mode=endfire
persist.audio.lowlatency.rec=false
com.android.phone
crashing may have something to do with the APN
settings getting some extra cruft somehow (see this post).
To fix it, clear the Password and Server fields (should be asterisk(s)), and set MMS Port to 80.When I encountered problems with FreeGee, and couldn't find anything that
seemed relevant online, so I started trying silly things. Initially, I think
I found an app on the app store that successfully installed an older
version of the ClockworkMod recovery that was able to flash CyanogenMod,
but all the Google Apps kept crashing.
After reading that it might be the old ClockworkMod's fault, I tried to install
TWRP using some command line dd
voodoo in the terminal emulator.
Bad mistake. It totally soft bricked the device and I couldn't even get into recovery anymore. To fix it, I had to do the following steps in Windows (I tried a bunch of things in OS X, but it turned out I needed the Windows drivers for the phone… and I don't think they make them for OS X, at least not for these kinds of operations).
Download and extract this stuff on your computer (you'll need 7-zip or something similar for the .rar file):
Once everything is extracted:
Install the LG Drivers
Install LGFlashTool, but don't launch it yet
Move Megalock.dll into C:\LG\LGFlashTool
(replace the existing one)
Launch LGFlashTool, choose manual mode, and select the TOT and DLL files
Click the yellow arrow button; when you see the "READY!" message, hold both the up and down arrow buttons on the phone, and plug it into the computer. It should go into download mode and all the original AT&T bloatware should be on its way.
If things don't get started, it took forever for me to figure out that LGFlashTool expects the phone to be on a certain port. With the drivers installed, your phone should at least show up in My Computer when it's plugged in. To set the port (I think COM41 is the default that LGFlashTool is looking for), you may need to find your phone in the Device Manager, right-click to show its Properties, and then go to Port Settings -> Advanced, and change the COM Port Number appropriately.
Hopefully some of this is useful. Happy modding!


Established in 1978, venuefinder.com / blue&green has evolved into the most comprehensive and reliable directory and website for event organisers booking venues.
It is the only ABC audited venue directory with 39,770 unique users and 50,537 visits per month.
Users of venuefinder.com / blue&green include event organisers from agencies, associations, pharmaceutical, financial, and manufacturing organisations.
Rather than making hundreds of phone calls, we provide you with a comprehensive venue listing right here on our site.
Just enter your important details, such as the potential number of delegates attending and the number of rooms required, and we will list a variety of locations suitable to your individual needs.
Anyone using venuefinder.com will be linked up to over 15,000 event spaces in the UK and internationally. So, for wedding venues in Kent or a meeting room in Italy, we can help out regardless of the type or location.
1. How do I search for a venue?
2. How can I contact the venuefinder.com / blue&green team?
3. Who should I contact if I'm having problems finding a venue?
4. How do I get a listing on venuefinder.com ?
5. How do I advertise on the site?
6. What does featured venues mean?
7. venuefinder.com is ABC audited - what does this mean?
8. Tell me more about venuefinder.com Express Meetings
Use the venue search button to search for a venue by country, venue name, town, county, capacity, catering capacity, number of meeting rooms and venue bedrooms. For example, if you are looking for venues in London, enter "London" into the town search box and click search. The search will return any matching venues in that area. Follow the links to view each venue.
Website Help Desk: If you need help using the website or if you have a technical enquiry, please call us on 020 7955 3897
General Enquiries: If you have a general enquiry about blue&green, please call us on 020 7955 3897
Advertising Enquiries: If you would like information about advertising in venuefinder.com / blue&green, please call us on 020 7955 3878
Post: The postal address for venuefinder.com / blue&green is:
venuefinder.com / blue&green, UBM Information Ltd, Ludgate House, 245 Blackfriars Rd, London, SE1 9UY.
Back to FAQs
If you are having problems finding a venue to suit your meeting or conference needs, you can ask our venue finding team.
Our venue finding team can find a venue for your meeting or event at the best price to suit your needs. This service is FREE and our team promise you a quick response. Either call 0845 300 5454 or fill in the enquiry form located in 'Free Venue Finding Service' under the search section
Back to FAQs
If you would like a free listing on venuefinder.com click on advertiser zone from the green horizontal bar at the top of the main venuefinder.com website and choose one of the 4 options within the new entries box. Fill in the online form and click the submit button to send your details direct to the venuefinder.com / blue&green team. Your will then receive an email back from us with your unique user name and password allowing you to complete your entry on venuefinder.com . Your details will then be validated and uploaded to venuefinder.com .
Back to FAQs
For information on advertising in venuefinder.com / blue&green click on advertiser zone from the menu on the main venuefinder.com home page or call our sales team on 020 7955 3878.
Back to FAQs
Featured venues are venues that have paid for advertising on venuefinder.com . A paid advertiser will have more information within their profile including images, special offers, virtual tours and video.
Back to FAQs
Venuefinder.com / blue&green is an ABC audited product. Our circulation and traffic data has been independently verified by the Audit Bureau. What this means to our advertisers is that we can confirm and demonstrate exactly who our users are and that our figures are credible. The ABC logo is recognised throughout the industry as a mark of integrity.
Back to FAQs
How does the Express Meetings service work?
The venuefinding service is free service to you, as an agency we are paid a commission by your chosen venue once your event is contracted and has taken place
Do I have to choose the venue?
We would request that you pick a venue for us to approach, however if you do not know of any then we will find the perfect venue for your requirements and budget
How long will the process take?
We aim to have provided you with a full proposal of a venue with costs within 2 hours of receiving the enquiry
What happens if I don't like the venue offered or location?
Our team will contact you when the proposal is ready and talk you through the venue. Should you decide you're not happy with the venue then your enquiry will be moved to the normal venue finding process and we will then provide 3 suitable venues within a timeline agreed between both parties
Are there any hidden costs?
There are no costs incurred by you for the venue finding service, once the venue is confirmed the venue will require payment details from you for your conference booking, all we ask if that the booking is fair and honest.
Will I lose my contact with the hotel?
Not at all, we will purely do the initial booking and confirm the space. Once the booking is confirmed the venue will be in contact with you to arrange the final details and contract for your event
Can you help with the contracts?
Yes we can help with checking the contracts and making sure that the terms and conditions are all in line with your event. We are not legal experts, however we do deal with many events and understand event contracts and cancellation charges.
Back to FAQs
* You must have an exact date required for your meeting
* The enquiry must be genuine and be taking place (e.g. not a price comparison exercise)
* Should you not be happy with the venue or your requirements change your booking will be transferred to the normal venue finding process and a date will be agreed to have 3 venues proposed.
* There are no minimum or maximum numbers for your delegates
* This is a free venue finding service and no cost will be incurred by you.
* If your preferred venue is not available we will source a similar alternative venue
To read our Privacy Policy please click here
For general enquiries and advertising information please call: 020 7955 3897
For Terms and Conditions please click here
For general enquiries and advertising information please call: 020 7955 3897
Our Staff


/**
* Hidden fields allow you to easily inject additional data into a {@link Ext.form.Panel form} without displaying
* additional fields on the screen. This is often useful for sending dynamic or previously collected data back to the
* server in the same request as the normal form submission. For example, here is how we might set up a form to send
* back a hidden userId field:
*
* @example
* var form = Ext.create('Ext.form.Panel', {
* fullscreen: true,
* items: [
* {
* xtype: 'fieldset',
* title: 'Enter your name',
* items: [
* {
* xtype: 'hiddenfield',
* name: 'userId',
* value: 123
* },
* {
* xtype: 'checkboxfield',
* label: 'Enable notifications',
* name: 'notifications'
* }
* ]
* }
* ]
* });
*
* In the form above we created two fields - a hidden field and a {@link Ext.field.Checkbox check box field}. Only the
* check box will be visible, but both fields will be submitted. Hidden fields cannot be tabbed to - they are removed
* from the tab index so when your user taps the next/previous field buttons the hidden field is skipped over.
*
* It's easy to read and update the value of a hidden field within a form. Using the example above, we can get a
* reference to the hidden field and then set it to a new value in 2 lines of code:
*
* var userId = form.down('hiddenfield')[0];
* userId.setValue(1234);
*
* For more information regarding forms and fields, please review [Using Forms in Sencha Touch Guide](../../../components/forms.html)
*/
Ext.define('Ext.field.Hidden', {
extend: 'Ext.field.Text',
alternateClassName: 'Ext.form.Hidden',
xtype: 'hiddenfield',
config: {
/**
* @cfg
* @inheritdoc
*/
component: {
xtype: 'input',
type : 'hidden'
},
/**
* @cfg
* @inheritdoc
*/
ui: 'hidden',
/**
* @cfg hidden
* @hide
*/
hidden: true,
/**
* @cfg {Number} tabIndex
* @hide
*/
tabIndex: -1
}
});


Does this upload my PDF anywhere?
No, your files stay on your own computer! This site just displays them for you in the browser, and applies a color mask to each page to simulate different kinds of color vision deficiency.
Who made this site?
That would be me — Marie Chatfield. This project was built using the PDF.js platform (created by Mozilla) and the color blind SVG filters found in the colourblind bookmarklet (created by Alastair Douglas). View the source code of this project and contribute on GitHub.


This will be replaced by rendered RDF:
Everything you see on this page is content expressed in RDF either within this page or from somewhere else on the web rendered in the browser using
RDF2h
and mustache templates
An LD2h demo page
Reto Gmür


New year, new site Gridicarus: Development Update #2 Tiny site update + plans for the future Sample Search is still alive! A quick update! Gridicarus: Development Update #1 Is this thing on?


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This page tracks the new paper links made to my list of SGP 2015 papers.
Page maintained by Ke-Sen Huang.
If you have additions or changes, send an e-mail.
July 17, 2015
- Stable Topological Signatures for Points on 3D Shapes
July 13, 2015
- Hierarchical Multiview Rigid Registration
July 2, 2015
- Perfect Laplacians for Polygon Meshes
June 30, 2015
- Quaternion Julia Set Shape Optimization
June 27, 2015
- Learning Class-specific Descriptors for Deformable Shapes Using Localized Spectral Convolutional Networks
- Analysis and Synthesis of 3D Shape Families via Deep-learned Generative Models of Surfaces
- Reforming Shapes for Material-aware Fabrication
- An Image Degradation Model for Depth Augmented Image Editing
- Dynamic SfM: Detecting Scene Changes from Image Pairs
- Texture Mapping Real-World Objects with Hydrographics
- Robust Articulated-ICP for Real-Time Hand Tracking
- Fast and Exact (Poisson) Solvers on Symmetric Geometries
- Unconditionally Stable Shock Filters for Image and Geometry Processing
- Robust Treatment of Degenerate Elements in Interactive Corotational FEM Simulations
(CG Forum paper)
- A Projective Framework for Polyhedral Mesh modeling
(CG Forum paper)
- Perfect Matching Quad Layouts for Manifold Meshes
- Can bi-cubic surfaces be class A?
- A Homologically Persistent Skeleton of an Unstructured Point Cloud in any Metric Space
- Page published
kesen.huang@gmail.com