Surround the Trees
问题描述 :
There are a lot of trees in an area. A peasant wants to buy a rope to surround all these trees. So at first he must know the minimal required length of the rope. However, he does not know how to calculate it. Can you help him?
The diameter and length of the trees are omitted, which means a tree can be seen as a point. The thickness of the rope is also omitted which means a rope can be seen as a line.
The diameter and length of the trees are omitted, which means a tree can be seen as a point. The thickness of the rope is also omitted which means a rope can be seen as a line.
There are no more than 100 trees.
输入:
The input contains one or more data sets. At first line of each input data set is number of trees in this data set, it is followed by series of coordinates of the trees. Each coordinate is a positive integer pair, and each integer is less than 32767. Each pair is separated by blank.
Zero at line for number of trees terminates the input for your program.
输出:
The minimal length of the rope. The precision should be 10^-2.
样例输入:
9 12 7 24 9 30 5 41 9 80 7 50 87 22 9 45 1 50 7 0
样例输出:
243.06
#include <iostream> #include <stdio.h> #include <string.h> #include <algorithm> #include <cmath> using namespace std; #define eps 1e-6 #define PI 3.14159265 struct point { double x; double y; }po[1500],temp; int n,l,pos; bool zero(double a) { return fabs(a) < eps; } double dis(point &a,point &b)//返回两点之间距离的平方 { return sqrt((a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y)); } double across(point &a,point &b,point &c)//求a b and a c 的X积 { return (b.x-a.x)*(c.y-a.y) - (b.y-a.y)*(c.x-a.x); } int cmp(const void *a,const void *b) { return across(po[0],*(point*)a,*(point*)b) > 1e-8 ? -1 : 1; } int select() { int i,j,k=1; for(i=2;i<n;i++) { if(zero(across(po[0],po[k],po[i]))) { if(dis(po[0],po[k]) < dis(po[0],po[i])) po[k]=po[i]; } else po[++k]=po[i]; } return k+1; } int graham(int num) { double ans=0; int i,j,k=2; po[num]=po[0];//fangbian num++; for(i=3;i<num;i++) { while(across(po[k-1],po[k],po[i]) < -eps) {k--;} po[++k]=po[i];//就这个循环结束，不需要了！ } for(i=1;i<=k;i++) { ans+=dis(po[i-1],po[i]); } printf("%.2lf\n",ans); return 0; } int main() { int i,j,k; point my_temp; while(scanf("%d",&n),n) { scanf("%lf%lf",&po[0].x,&po[0].y); temp=po[0]; pos=0; for(i=1;i<n;i++) { scanf("%lf%lf",&po[i].x,&po[i].y); if(po[i].y < temp.y) temp=po[i],pos=i; } if(n==2) { printf("%.2lf\n",dis(po[0],po[1])); continue; } my_temp=po[0]; po[0]=po[pos]; po[pos]=my_temp; qsort(po+1,n-1,sizeof(po[0]),cmp); graham(select()); } return 0; }
解题报告转自：http://blog.csdn.net/sunrain_chy/article/details/9380145
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理解错了。。。。。谢谢楼主~~
输入样例作为一个整体输入，带回车
这怎么用Catalan数啊？求解答！
妈呀！这个Dijkstra模板好长OwQ！
很高兴你会喜欢这个网站。目前还没有一个开发团队，网站是我一个人在维护，都是用的开源系统，也没有太多需要开发的部分，主要是内容整理。非常感谢你的关注。
“可以发现,树将是满二叉树,”这句话不对吧，构造的树应该是“完全二叉树”，而非“满二叉树”。
你指的哪个问题？
示例程序中的代码不够稳健，没有考虑到输入了非法字符或者不合理输入的情况。
什么破题，题意好难懂啊
因为是要把从字符串s的start位到当前位在hash中重置，修改提交后能accept，但是不修改居然也能accept
m /= i; 是一直在变的。参考这一篇关于质因数的http://www.acmerblog.com/integer-factorization-5124.html
http://beeder.me 这个网站上有很多poj和hihoCoder的题解，质量不错，欢迎转载。
Good task for the group. Hold it up for every yeara??s winner. This is a excellent oppotunity for a lot more enhancement. Indeed, obtaining far better and much better is constantly the crucial. Just like my pal suggests on the truth about ab muscles, he just keeps obtaining much better.
代码过于复杂了吧


12 Monkeys A Film Review By Michael Redman Copyright 1996 By Michael Redman
**** (out of ****)
Terry Gilliam's latest is a slam bang science fiction tour de force. Drawing from the same deep swirling pool of inspiration that he did for "Brazil", the former Monty Python member has another winner – at least for some of us.
Like most of his films, this is one of those `love it or hate it's. Some will find it brilliant, dark but dazzling. Others will find it tedious, dark but dazzling.
I've heard the plot referred to as confusing by some, but to anyone who's well-versed with time travel story lines, the themes are familiar. Bruce Willis is incarcerated in a hell hole of a prison in the future where the entire human population lives underground because of a deadly virus that covers the planet surface. `Volunteering' (more like being chosen by a giant grab-a-toy-with-the-claw machine) to be sent into the past, he gets a chance at freedom.
His mission is to return to 1996 and find a pure strain of the virus so the scientists of the future can return the people to the surface. Their time travel device, like many of the futuristic artifacts (which look as if they were borrowed from Brazil), isn't exactly high tech and only gets him to the right time after sending him first to 1990 and then W.W.I. During his stay in 1990, he is thrown into a mental institution where he meets Brad Pitt. Finally making it to the right time, he finds that Pitt is head of the animal rights group Army Of The 12 Monkeys, the organization thought to be responsible for unleashing the virus.
Bouncing back and forth from the future to our time and back again, Willis follows clues from incomplete historical records trying to find the virus only to discover that he, himself is the cause of most of the clues.
Come to think of it, the plot is somewhat convoluted, but in the end everything makes sense. Well, almost everything. The real key to the ending is the insurance salesperson sitting next to the red-haired scientist on an airplane. Which time period is she from?
There has been much talk about how this is a new groundbreaking role for Willis. In truth, it's not. He plays the same character that he has for years: tough guy beaten down time after time only to rise back up, bloody and broken, to go after the bad guys once again. The difference here is that he is even better at it than ever before. Willis may only play one role, but he's got that one down cold.
The surprise is Brad Pitt. Looking nothing like the Fabio clone from previous films, he is masterful as the insane prisoner turned ecoterrorist mastermind. Maybe he's more than just a pretty face after all.
[This appeared in the 1/17/96 "Bloomington Voice", Bloomington, Indiana. Michael Redman can be contacted at<EMAIL_ADDRESS>--<EMAIL_ADDRESS>This week's film review at http://www.bvoice.com/ Film reviews archive at http://us.imdb.com/M/reviews_by?Michael%20Redman
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
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pmcid:
6033150
doi:
10.1002/wcc.522
WCC522
Modern Climate Change
Advanced Review
Advanced Reviews
The early 20th century warming: Anomalies, causes, and consequences
Hegerl et al.
HegerlGabriele C.
<EMAIL_ADDRESS>1
BrönnimannStefan23
SchurerAndrew1
CowanTim1
[],
1School of GeoSciences
University of EdinburghEdinburgh
UK
[],
2Oeschger Centre for Climate Change Research
University of BernBern
Switzerland
[],
3Institute of Geography
University of BernBern
Switzerland
*Correspondence Gabriele C. Hegerl, School of GeoSciences, University of Edinburgh, Edinburgh, UK.
Email:
<EMAIL_ADDRESS>epub:
ppub:
9410.1002/wcc.2018.9.issue-4e522
received: --
rev-recd: --
accepted: --
© 2018 The Authors.
WIREs Climate Change published by Wiley Periodicals, Inc.
This is an open access article under the terms of the
http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided
the original work is properly cited.
The most pronounced warming in the historical global climate record prior to the recent
warming occurred over the first half of the 20th century and is known as the Early
Twentieth Century Warming (ETCW). Understanding this period and the subsequent slowdown
of warming is key to disentangling the relationship between decadal variability and
the response to human influences in the present and future climate. This review discusses
the observed changes during the ETCW and hypotheses for the underlying causes and
mechanisms. Attribution studies estimate that about a half (40–54%;
p > .8) of the global warming from 1901 to 1950 was forced by a combination of increasing
greenhouse gases and natural forcing, offset to some extent by aerosols. Natural variability
also made a large contribution, particularly to regional anomalies like the Arctic
warming in the 1920s and 1930s. The ETCW period also encompassed exceptional events,
several of which are touched upon: Indian monsoon failures during the turn of the
century, the “Dust Bowl” droughts and extreme heat waves in North America in the 1930s,
the World War II period drought in Australia between 1937 and 1945; and the European
droughts and heat waves of the late 1940s and early 1950s. Understanding the mechanisms
involved in these events, and their links to large scale forcing is an important test
for our understanding of modern climate change and for predicting impacts of future
change.
This article is categorized under:
Paleoclimates and Current Trends > Modern Climate Change
attributing causes to climate changedecadal climate variabilityextreme weather and climate eventsobserved climate change
Natural Environment Research CouncilNE/P006752/1
Swiss National Science Foundation200021_162668
National Centre for Atmospheric Science and the Wolfson Foundation and the Royal Society
as a Royal Society Wolfson Research Merit AwardWM130060
European Research Council funded project Transition Into The AnthropoceneEC‐320691
source-schema-version-number2.0
component-idwcc522
cover-dateJuly/August 2018
details-of-publishers-convertorConverter:WILEY_ML3GV2_TO_NLMPMC version:version=5.4.3 mode:remove_FC converted:05.07.2018


Data Scientist with an emphasis on Statistics and R Programming
1976 B.S. Statistics
1988 M.S. Statistics
2000 Ph.D. Statistics
Using my strong foundation in Statistics, I have made the transition to Data Science where samples rub up against populations and modern prediction algorithms overcome problems once thought impossible.
Visiting Assistant Professor, University of Nevada, Las Vegas, 2004-2007.
Sessional Instructor. University of Manitoba, 1993-2003.
Graduate Instructor, Iowa State University, Fall 1985.
Teaching assistant, Iowa State University, 1986–1987.
Teaching assistant, University of Wisconsin–Madison, 1979–80.
NV-ADI, Henderson NV, 2008–present.
Principal consultant, Statistical Advisory Service, University of Manitoba, 2001–2003.
Project-based research assistant, Statistical Advisory Service, University of Manitoba, 1992–2000.
Mathematical statistician, Forest Products Laboratory, Madison WI, 1981–1982.
Research assistant, University of Wisconsin–Madison, 1980–81.
Post-doctoral fellow, Institute of Industrial Mathematical Sciences, University of Manitoba, 2000.
My time is divided up between Teaching, Consulting and Research. If you feel you have a worthy project that could use my expertise, I'm always interested in anything that helps push our field forward.
Journal Articles
Thesis
Unpublished Reports
Research Presentations
Poster Sessions
Other Presentations
Ito, K. and D. Murphy (2013). Application of ggplot2 to Pharmacometric
Graphics. CPT Phar- macometrics & Systems Pharmacology, 2, e79;
doi:10.1038/psp.2013.56.
Singh, A., A.F. Lucas, R. Dalpatadu and D. Murphy (2013). Casino Games
and the Central Limit Theorem. UNLV Gaming Research & Review Journal, 17, no.2.
Eisendrath, D., Bernhard, B. J., Lucas, A. F., Murphy, D. J. (2008). Fear and
managing in Las Vegas: An analysis of the effects of September 11, 2001, on Las
Vegas Strip gaming volume. Cornell Hospitality Quarterly, 49(2), 145-162.
King, M. W., Z. Zhang, P. Ukpabi, D. Murphy and R. Guidoin (1994). Quantitative
analysis of the surface morphology and textile structure of the polyurethane
Vascugraft arterial prosthesis using image and statistical analysis. Biomaterials,
15 (8), 621-627.
Ph.D. Thesis: Post-data Pivotal Inference in Balanced Random Effects Models.
(University of Manitoba: John Brewster, advisor)
MS Creative Component: A Comparison of Balanced and Staggered Nested Designs,
with Applications. (Iowa State University: W. Robert Stephenson, advisor)
ggplot2 Development Team (2012). Changes and Additions to ggplot2-0.9.0.
Singh, A., A. K. Singh and D. Murphy (2009). Statistical Evaluation of Multi-Increment
Sampling (MIS) or Increment Sampling (IS) Methodology and Their Applicability in
Addressing Various Project Objectives of Environmental Regulations. Report submitted
to the US Environmental Protection Agency, October 2009.
Brewster, J. F. and D. J. Murphy (2006). Post-data pivotal inference in the balanced
one-way random effects model and in constrained parameter problems. Technical report,
Institute of Industrial Mathematical Sciences, University of Manitoba.
Brewster, J. F., D. J. Murphy and Z. J. Pritchard (1998). Preliminary test estimation
of population shares. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J. F., D. J. Murphy and Z. J. Pritchard (1998). Alternative preliminary test
estimators of population shares. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J. F., D. J. Murphy and Z. J. Pritchard (1998). Preliminary test estimation
of population proportions–statistical properties of proposed estimators. Final report
submitted to Manitoba Bureau of Statistics.
Brewster, J. F., L. M. Armstrong, D. J. Murphy, Z. J. Pritchard and H. Xie (1997).
Simultaneous estimation. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J.F., L.M. Armstrong, D.J. Murphy, Z.J. Pritchard and H. Xie (1997).
Preliminary test estimation. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J. F., L. M. Armstrong, D. J. Murphy, Z. J. Pritchard and H. Xie (1997).
Shrinkage estimation. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J. F., L. M. Armstrong, D. J. Murphy, Z. J. Pritchard and H. Xie (1997).
Composite estimation. Final report submitted to Manitoba Bureau of Statistics.
Brewster, J. F., L. M. Armstrong, D. J. Murphy, Z. J. Pritchard and H. Xie (1997).
Empirical Bayes and Hierarchical Bayes Estimation. Final report submitted to Manitoba
Bureau of Statistics.
Murphy, D. J. (2000). Variance function estimation in balanced one-way random effects
models by the post-data pivotal approach. Contributed talk, Statistical Association of
Manitoba Conference, Winnipeg, MB.
Brewster, J. F., L. M. Armstrong, D. J. Murphy (*), Z. J. Pritchard and H. Xie (1997).
Empirical Bayes and hierarchical Bayes estimation. Presentation to Manitoba Bureau of
Statistics.
Brewster, J.F. and D.J. Murphy (*) (1995a). A conditional approach to estimation in
balanced random effects models. Contributed talk, Joint Statistical Meetings, Orlando,
Fla.
Brewster, J.F. (*) and D.J. Murphy (1995a). Conditional order-preserving inference in
problems involving ordered or truncated parameters. Contributed talk, Joint Annual
Meeting and Workshops, Statistical Society of Canada and Institute of Mathematical
Statistics, Montreal, Que.
Murphy, D. J. (1993). Issues in the analysis of unbalanced repeated measures data.
Contributed talk, Annual Conference of Statistical Association of Manitoba and Red
River Chapter of ASA.
Murphy, D. J. (1992). Application of transform-both-sides methodology under a
Michaelis-Menten model. Contributed talk, Annual Conference of Statistical
Association of Manitoba and Red River Chapter of ASA.
Iaci, R., A. K. Singh, A. Cardno and D. Murphy (2009). A Simple Information Based
Method for Clustering High Dimensional Sparse Transaction Data with an Application
in Gaming. 12th Annual Data Mining Conference, Oct. 26-27 2009, Las Vegas, NV.
Braun, W. J., D. J. Murphy and R. Bird (1994). Statistical Issues in Modeling
Aberrant Crypt Foci, Poster session, International Biometrics Conference, Hamilton,
Ont.
Implementing CART in R, presented to Las Vegas R Users Group, January 2015.
Introduction to ggplot2, presented to Las Vegas R Users Group, November 2014.
Introduction to dplyr and tidyr: part 1, presented to Las Vegas R Users Group,
October 2014.
ggplot2 Graphics, presented to HOA 732 class at UNLV, May 2014.
Windows, Ubuntu, Solaris
Co-organizer of Las Vegas R Meetup Group
Co-author of Lahman package on CRAN (with Michael Friendly, York U.)
Regular contributor to R-help from Nov.2009–Nov.2011 and to the ggplot2 listserv from Jan. 2010–present.
Senior statistical analyst and programmer, ADI-NV Inc.
Our mission is to promote student achievement and preparation.
Our mission is to promote student achievement and preparation.
Our mission is to promote student achievement and preparation.
Our mission is to promote student achievement and preparation.
John Doe
Founder of CSK Limited
Robert Doe
Founder of CSK Limited
Our mission is to promote student achievement and preparation promote student achievement.
Create a website that you are gonna be proud of and preparation.
For those who have seen the Earth from space, and for the hundreds.
I'm always available for a consult...


-
-
-
SaferStreets.org is a movement led by people passionate about using technology to help women living in cities feel safer and lead freer lives. We're piloting project in Chicago.
Share the Safer Streets movement with your friends on Facebook & Twitter. Remember to #SaferStreets and #YourCity :)
We're looking to collaborate with NGOs, police departments, city councils, and any individuals who want to make their streets safer for women.
Write to us at collaborate@saferstreets.org


<script src="jquery.js"></script>
<script src="index.js"></script>
ℹ ｢wds｣: Project is running at https://localhost:8080/
Version: webpack 4.35.0
Time: 24334ms
...
+ 1388 hidden modules
ℹ ｢wdm｣: Compiled successfully.
What happened? Projects got bigger.
People do not like big files.
But isn't there a module system now? Jup.
Supported by all major browsers? Possibly.
But couldn't I just use these modules…
Heavily based on create-es-react-app by Luke Jackson,
featuring
es-react, csz and servor by Luke Jackson,
htm by Jason Miller
<script type="importmap">{"imports": {
"es-react": "./node_modules/es-react/index.js"
}}</script>
input: [
"Entry A",
"Entry B"
]
or
input: {
nameA: "Entry A",
nameB: "Entry B"
}
No added wrappers, there is a 1-to-1 equivalence
between
relevant bindings
You can bundle it again for the same output.
Modules are wrapped in functions in tables in each chunk.
Only the runtime knows how to load each module.
parse entry points from an HTML file and
replace with generated chunks
create chunks for workers
Today: Dynamic imports are regular entry points
Future: Take already loaded modules into account
Timeframe: Soon!
import {x} from './lib.js'console.log(x)
import {y} from './lib.js'console.log(y)
console.log('Hello')export const x = 1export const y = 2
import './chunk.js'const x = 1
console.log(x)
import './chunk.js'const y = 2
console.log(y)
console.log('Hello')
Timeframe: Remote future
Code: github.com/lukastaegert/isomorphic-code-splitting
Slides: lukastaegert.github.io/isomorphic-code-splitting


Age
21
Calories
21
Weight
65
Height
162.5cm
Users Behavior
24 Hours performance
Weekly Statistics
Steps in a week
38,599
Stress Monitor
Monitor Your Heart Rate
Age
21
Calories
21
Weight
65
Height
162.5cm
24 Hours performance
Steps in a week
Monitor Your Heart Rate


pipedit
This installation procedure utilizes python pip, and requires that the target machine has internet connectivity.
pip install elasticsearch-curator
If you plan on using Curator with AWS ES using IAM credentials, you must also
install the requests_aws4auth
python module:
pip install requests_aws4auth
Upgrading with pipedit
If you already have Elasticsearch Curator installed, and want to upgrade to the
latest version, use the -U
flag:
pip install -U elasticsearch-curator
Installing a specific version with pipedit
The -U
flag uninstalls the current version (if any), then installs the latest
version, or a specified one. Specify a specific version by adding ==
followed
by the version you’d like to install, like this:
pip install -U elasticsearch-curator==X.Y.Z
System-wide vs. User-only installationedit
The above commands each imply a system-wide installation. This usually
requires super-user access, or the sudo
command. There is a way to install
Curator into a path for just the current user, using the --user
flag.
pip install --user elasticsearch-curator
This will result in the curator
end-point being installed in the current
user’s home directory, in the .local
directory, in the bin
subdirectory. The
full path might look something like this:
/home/user/.local/bin/curator
You can make an alias or a symlink to this so you can call it more easily.
The --user
flag can also be used in conjunction with the -U
flag:
pip install -U --user elasticsearch-curator==X.Y.Z


Bolivia opposition leader declares herself president after Evo Morales’ resignation
by Bradford BetzAn opposition figure in Bolivia's Senate declared herself the country’s interim president late Tuesday following the resignation of Evo Morales.
Jeanine Añez, a 52-year-old women’s rights activist and former television presenter, took control of the Senate on Tuesday, a move that puts her next in line for the presidency.
Lawmakers of Morales' Movement for Socialism party were not present when Añez made the announcement. Juan Cala of Morales' Movement for Socialism said the party wouldn’t participate because the assembly session is “illegal.”
Bolivia has been beset by violent protests in recent weeks, sparked by allegations of fraud in the Oct. 20 election that Morales claimed to have won.
Morales, who was the country’s first indigenous president, stepped down Sunday at the "suggestion" of his country's military chief and went into hiding. His whereabouts were unknown after he claimed officials in Bolivia wanted him arrested – an allegation police have disputed.
Morales left Bolivia Tuesday after Mexico granted him asylum. Mexican Foreign Secretary Marcelo Ebrard met Morales as he arrived at the capital's airport after a flight that was complicated by some countries' reluctance to let the plane use their airspace.
Morales’ supporters have likened his resignation to a coup d'etat – an assertion echoed by some Washington lawmakers.
It is unclear to what extent Bolivians will support Añez.
CLICK HERE TO GET THE FOX NEWS APP
Amid tears Monday, Añez told reporters she wanted to “give certainty” to Bolivians in place of a power vacuum. “I just want to provide a salutation to the horrible crisis that we’re living through.”
Fox News' Stephen Sorace and The Associated Press contributed to this report.


Warehouse Keeper Chad: Unless you plan to be a door-to-door salesman, why carry all these heavy goods? You need to deliver them to someone? Well, then, we would be happy to ship the items to whatever warehouse is nearest to the designated recipient. What could be easier?


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Meet a partner for your best holiday
Bradley Hunter
Based in Chicago. I love playing tennis and loud music.
Bradley Hunter
I get my inspiration from nature and objects around me. I have a passion to color's, typography and skateboards.
Bradley Hunter
I'm a happy person that loves cats and climbing on mountains.
Bradley Hunter
Based in Chicago. I love playing tennis and loud music.


As described in Android Developers documentation, a ViewPager is a
Layout manager that allows the user to flip left and right through pages of data.
The example app design was initially inspired to Twitter mobile but it can be used and adapted as a starting base for different kind of projects.
Design summary:
view_pager
to switch between content sectionsview_pager
)Fully playable source on Glitch:
I recommend trying this example also full screen with the direct link zuix-app-4.glitch.me.
The app consists of a main index
and the following elements:
// a small component implementing a 'card'
// with a picture and random data
components/random_item.css
components/random_item.html
components/random_item.js
// a static list used in each ViewPager page
// and that holds a bunch of 'random_item'
content/fake_list.css
content/fake_list.html
// the menu used in the side `drawer_layout'
content/user_menu.css
content/user_menu.html
// the header bar with a title, clickable
// user profile avatar and sections names
layout/header.css
layout/header.html
// a footer bar with links to main app screens
layout/footer.css
layout/footer.html
// the main app files
index.css
index.html
index.js
So, the index.html
page includes:
layout/header
layout/footer
drawer_layout
which content is loaded from content/user_menu
view_pager
to implement the page indicator (tab layout) with the section names (Feed,Week,Month,etc..)view_pager
which holds the pages of each section that contain the fake_list
populated with random_item
sI hope this make sense =) and that the code is easy to understand even for a beginner. If not, feel free to leave a comment, I'll do my best to improve this.
Further reading:
See also my previous post about
[[ DEV.TO POST https://dev.to/genejams/mobile-app-layout-from-scratch--5ch9 ]]


--- layout: post status: publish published: true title: Android - Programmatically Scroll Animation. author: display_name: hojunbaek login: hojunbaek email<EMAIL_ADDRESS>url: '' author_login: hojunbaek author_email<EMAIL_ADDRESS>wordpress_id: 1323 wordpress_url: http://ezcocoa.com/?p=1323 date: '2011-12-16 06:05:13 +0900' date_gmt: '2011-12-16 06:05:13 +0900' categories: - Android tags: - animation - passive - scrol - scroll comments: [] ---
i tried with setSelection(int p, boolean ani), but it's not working.
so i found two possible solution on google.
i refer a url:http://groups.google.com/group/android-developers/browse_thread/thread/9140fd6af3061cdf/7f89e53ae53e455b?lnk=gst&q=setselection#7f89e53ae53e455b
i didn't a above solution.
i had been used a below solution.
[sourcecode language="java"]
//scroll forward or backward
private void scroll(int type){
View selectedV = mG.getSelectedView();
int idx = mG.indexOfChild(selectedV);
switch(type){
case FORWARD:
default:
if(idx
break;
case BACKWARD:
if(idx>0)
idx--;
break;
}
//now scrolled view's child idx in gallery is gotten
View nextView = mG.getChildAt(idx);
//(x,y) in scrolled view is gotten
int x = nextView.getLeft()+nextView.getWidth()/2;
int y = nextView.getTop()+nextView.getHeight()/2;
String out = String.format("x=%d, y=%d", x, y);
Log.i(TAG+".scroll", out);
//Kurru's simulating clicking view
MotionEvent event = MotionEvent.obtain(100, 100, MotionEvent.ACTION_DOWN, x, y, 0);
mG.onDown(event);
boolean res = mG.onSingleTapUp(null);
Log.i(TAG+".scroll", "onSingleTapUp return =" + res);
}
[/sourcecode]


|
FreeRTOS port on GAP8/RISC-V
|
task. h
TaskHandle_t xTaskCreateStatic( TaskFunction_t pvTaskCode, const char * const pcName, uint32_t ulStackDepth, void *pvParameters, UBaseType_t uxPriority, StackType_t *pxStackBuffer, StaticTask_t *pxTaskBuffer );
Create a new task and add it to the list of tasks that are ready to run.
Internally, within the FreeRTOS implementation, tasks use two blocks of memory. The first block is used to hold the task's data structures. The second block is used by the task as its stack. If a task is created using xTaskCreate() then both blocks of memory are automatically dynamically allocated inside the xTaskCreate() function. (see http://www.freertos.org/a00111.html). If a task is created using xTaskCreateStatic() then the application writer must provide the required memory. xTaskCreateStatic() therefore allows a task to be created without using any dynamic memory allocation.
| pvTaskCode | Pointer to the task entry function. Tasks must be implemented to never return (i.e. continuous loop). |
| pcName | A descriptive name for the task. This is mainly used to facilitate debugging. The maximum length of the string is defined by configMAX_TASK_NAME_LEN in FreeRTOSConfig.h. |
| ulStackDepth | The size of the task stack specified as the number of variables the stack can hold - not the number of bytes. For example, if the stack is 32-bits wide and ulStackDepth is defined as 100 then 400 bytes will be allocated for stack storage. |
| pvParameters | Pointer that will be used as the parameter for the task being created. |
| uxPriority | The priority at which the task will run. |
| pxStackBuffer | Must point to a StackType_t array that has at least ulStackDepth indexes - the array will then be used as the task's stack, removing the need for the stack to be allocated dynamically. |
| pxTaskBuffer | Must point to a variable of type StaticTask_t, which will then be used to hold the task's data structures, removing the need for the memory to be allocated dynamically. |
Example usage:
// Dimensions the buffer that the task being created will use as its stack. // NOTE: This is the number of words the stack will hold, not the number of // bytes. For example, if each stack item is 32-bits, and this is set to 100, // then 400 bytes (100 * 32-bits) will be allocated. #define STACK_SIZE 200
// Structure that will hold the TCB of the task being created. StaticTask_t xTaskBuffer;
// Buffer that the task being created will use as its stack. Note this is // an array of StackType_t variables. The size of StackType_t is dependent on // the RTOS port. StackType_t xStack[ STACK_SIZE ];
// Function that implements the task being created. void vTaskCode( void * pvParameters ) { // The parameter value is expected to be 1 as 1 is passed in the // pvParameters value in the call to xTaskCreateStatic(). configASSERT( ( uint32_t ) pvParameters == 1UL );
for( ;; ) { // Task code goes here. } }
// Function that creates a task. void vOtherFunction( void ) { TaskHandle_t xHandle = NULL;
// Create the task without using any dynamic memory allocation. xHandle = xTaskCreateStatic( vTaskCode, // Function that implements the task. "NAME", // Text name for the task. STACK_SIZE, // Stack size in words, not bytes. ( void * ) 1, // Parameter passed into the task. tskIDLE_PRIORITY,// Priority at which the task is created. xStack, // Array to use as the task's stack. &xTaskBuffer ); // Variable to hold the task's data structure.
// puxStackBuffer and pxTaskBuffer were not NULL, so the task will have // been created, and xHandle will be the task's handle. Use the handle // to suspend the task. vTaskSuspend( xHandle ); }


Since there is a
factor in the integrand of the above integral,
the important contribution to the integral must come from the vicinity of
(i.e. resonant particles). Therefore we expand
as
|
(37) |
Since
is odd in , only terms that are
also odd need to be retained in the above expansion. Using these, expression
(36) is written as
Using these results, Eq. (35) is written as
|
(39) |
which agrees with Eq. (16) in Chapter 8 of Stix's book[4].
Equation (39) indicates that the time rate of change of the
averaged kinetic energy of resonant particles is proportional to the
derivative of the initial distribution function at the phase
velocity of the wave.
yj
2016-01-26


2 Samuel 11:7
And when Uriah was come unto him, David demanded of him how Joab did, and how the people did, and how the war prospered.


--- title: 'Paola in South Africa: an unreal experience' author: ~ date: '2017-07-13' slug: paola-in-south-africa-an-unreal-experience categories: ["My trips"] tags: ["Cape Town","South Africa","iXperience","Data Science"] ---
So here I am, for the first time in my life I am visiting Africa. On June 27th the plane landed in Cape Town, and as I step in this new, unknown country I feel a sense of thrill in me! After such a long trip I am not only ready to explore the city and its surroundings areas, but I am also super excited to kick off with my new learning experience in Data Science and coding.
I will not lie, my first impressions on Cape Town has been of a socially complex city. As I drive to my accommodation I see from far some townships, while I approach the richer areas. This is certainly something I will never forget. Everyone seems to be extremely friendly here, from my colleagues at iXperience to the locals.


DNR: 4 people shot during opening deer hunting weekend in Wisconsin
by Stephen CohnMADISON, Wis. - Department of Natural Resources officials are asking for the public's help for more information about a man who was shot while deer hunting in Washburn County on Sunday.
According to a news release, at least four people were shot during the deer season's opening weekend.
The release said other incidents occurred in Oneida and Marathon counties, where two separate incidents included hunters discharging their firearms and striking their left feet.
The DNR said a 19-year-old woman was shot in the left hand by a hunter who shot toward a running deer in Fond du Lac County.
Anyone with information about the shootings is asked to call the Wisconsin DNR tip line at 800-TIP-WDNR.


Lead and design the entire Returns user interface to allow users to force more returns to be routed back to one fulfillment center over another.
Utilize Scrum methodologies to lead, develop, groom, plan, and complete requirements while optimizing team performance.
Led as product manager and developer for the Nordstrom Vault experience. Customers can pick up/return their products faster, fulfilling the 150% same-day delivery demand. My work resulted in a new shipping option and led to the creation of a new team, dedicated to building and managing the Nordstrom Vault experience.
Performed root cause analysis on a P2 incident with inventory routing that caused a system failure on nordstrom.com. I diagnosed and led a documentation overhaul on the culprit codebases, dropping unit cancel rate from 5.13% to 1.37%. My work directly led to the creation of the SCA Tools team, dedicated to sustaining collaboration and standards.
Led as a product manager and developer for "ChatOps", which allows support staff to query API calls/JSON in plain English. Queries were possible for inventory and scenario combinations, empowering all technology employees to problem solve considerably faster than before.
Led several documentation projects and design meetings along with developing team standards, improving collaboration processes across the .com software teams. These code improvements streamlined development and had powerful impact into the larger Nordstrom technology group, as well as business operations.
Priority 1 (P1) backend Nordstrom.com microservice (with up to 2500 transactions per second)-Support and diagnose incidents with Logstash, Elasticsearch, Kibana, Grafana, and AWS (Redis, Kafka).
Made significant improvements in our incident monitoring systems, by creating a custom Grafana-based monitoring system, cutting the response rates by more than 70%.
Led a large refactor of Nordstrom's logging systems, focusing on ensuring all logging was async and formalized.
Implemented a protobuf payload option on all API requests for performance, cutting 20 milliseconds off call time.
LendMe Inc.
Optimizations and fixes for Apple TV, General Electric, ChinaFile, Automatic, and ROC UNITED. Made search possible for Apple TV (FOX, FX, NATGEO).
Created heat maps and line graphs using vehicle data API for mobile app, Automatic.
Built data visualizations with D3.js and improved UX/UI on both web and mobile, and launched websites.
LendMe Inc.
Led software development and design:
Websites' front-end, in JavaScript, jQuery, Bootstrap, HTML/CSS as well as UI/UX.
Raw and Reckless
Planned and developed new business practices and skills to AT&T corporate for both business and technology that reduced customer cancellation by 30%.
Managed all customer experience departments and remained the primary customer contact for business.
Led customer experience while developing products and features for their needs.
Ensured current customers stay with the company with a save rate of 95% out of a 68% target.
Managed customer relationships by recommending and selling up to nine different AT&T products and services to meet their needs. Dominated sales revenue and service objectives of $4,073 by 233% ($9,502) in a fast-paced environment.
Phone:<PHONE_NUMBER>
E-mail<EMAIL_ADDRESS>Technologies
Languages Golang, JavaScript, Java, HTML, CSS/SCSS


which will then be called upon form submission.
Utils.classes.contains Utils.classes.containsList Utils.classes.add Utils.classes.addList Utils.classes.remove Utils.classes.removeList Utils.classes.toggle Utils.classes.toggleList Utils.classes.item Utils.classes.get
which are passed to eval, which allows them to be called with the selected method. They are provided with type hints to guide input.
eval
For example, calling Utils.classes.contains with input of:
Utils.classes.contains
document.body
and
"test"
would display the result of the call and the current tokens in the specified element's classList object.
classList
obj (Element)
token (String (with quotations))
Results will be displayed below.
Erase Results
The specified Element's class token list:
Element
[]
in Array form.
Array
The result of the called method:
undefined
in String form.
String


A Sephora Perth pop-up in time for Christmas – you beauty!
by Keren BellosBEAUTY fans will find it easier to spread the joy this festive season following the launch of global giant Sephora’s pop-up store in Perth.
Located in David Jones Claremont Quarter, the shop has the full range of Christmas gift packs, including skincare and beauty products from Huda Beauty, Becca Cosmetics, Fenty Beauty and the Sephora Collection.
Hawaiian shopping centres general manager Scott Greenwood said it gave Perth beauty enthusiasts the chance to get their hands on leading international cosmetic brands.
“The pop-up Sephora has arrived just in time for people to start their Christmas shopping,” he said.
“It will also be warmly welcomed by those who love the Sephora brand but until now have only been able to access products online or interstate.”
The Sephora pop-up will be available until January or when stock runs out.
Sephora has stores in NSW, Victoria, Queensland and South Australia.
More lifestyle


A new post has been made on On the Blog. Be among the first to read and react to this topic. Looking forward to your comments.
Enjoy!


Royston is a third year undergraduate in UC San Diego, partaking in a Computer Science Major.
He is taking CSE 170 to better learn design techniques to create more aesthetically beautiful products in future.
HitMeUp is a social media app designed to fix all your scheduling problems with your friends! Need help tracking your friends' schedules each quarter? Don't fret!


Having the ability to create something from scratch using only HTML and CSS is a fantastic skill to have, yes? It's rare, but there will be instances in your career where knowledge of--and only knowledge of--these two particular 'languages' will be more than enough to get the job done. As your code base grows and traffic explodes, however, you're going to need a few more tools in your developer's toolbox.
Part of being a front end developer means working with JavaScript. It's an incredibly popular development language used on millions of websites all around the world. You can't swing a metaphorical cat by the tail in the development world without hitting a JavaScript developer.
Now here's the thing. It is of my opinion that HTML and CSS are, in fact, programming languages in the broadest of terms, yes? Yes, they are declarative languages that describe presentation, which puts them in a weird category when compared with other 'proper' programming languages like Java, Swift, Python, C++, etc. However, they are used to write instructions for a computer to execute, which--as far as I'm concerned--makes them a programming language. You could argue semantics all the live long day--and I'm sure there are people on the Internet who would love to drag you down into this hot mess--but the fact is that the real world (e.g. those that do the hiring and firing out there in the corporate world) do consider them real programming languages and, so, you should treat them as such too.
I mention this only because JavaScript is a 'proper' programming language. It is a high-level, dynamic, weak type, prototype-based, interpreted language, which puts it on a whole other level than HTML and CSS. CSS has incorporated some of these ideas with preprocessors, but, even then, you're still using a 'proper' programming language to do the heavy lifting (e.g. JavaScript or Ruby). Your CSS is exported, where it is processed by the preprocessor lanaguage of preference, and the modified CSS file is given back.
JavaScript provides the ability to add interactivity to a website. Again, not to belabor the point, but HTML is structure, CSS is presentation, and JavaScript is behavior.
JavaScript should be kept in a separate file (like you do for CSS) and then referenced in the HTML using the
Where you reference it is a matter for some consideration. JavaScript stops rendering, which can substantially increase page loading times, so, generally speaking, it's a good idea to reference it at the back end of your site near the closing  tag. However, if you have JavaScript that is absolutely necessary to render the page proper, then you should reference it in the  element.
I'm going to cover this pretty fast and it is--by no means--absolute and complete. Your interaction, involvement, use, etc. is almost entirely driven by how involved you want to get. We're going to cover some basic, vanilla JavaScript stuff now and then--at some point in the future--get into some JavaScript libraries and--if we have time--frameworks. Vanilla JavaScript is a bit harder to work with, but a fundamental understanding of some of the concepts we're going to cover will certainly help you later on down the road if you choose to follow the programmer-centric frontend development path. If, however, you're just looking to get it done and don't really care to understand the 'nuts and bolts' then libraries and frameworks will be more your cup of tea. Both paths are equally valid, each with the opportunity to develop a unique skills set. So, it really is just a question of which one fits your personal approach better.
In the abstract, variables are simply boxes in which we store data. We can call these boxes just about anything we want and we can store just about any value we like in them. In the more literal sense, however, variables refer--by name--to actual, physical locations in system memory where data is being stored. Programmatically, when you 'declare' a variable and give it a name, you are sectioning off a little chunk of system memory and assigning it an address. The value that you store is associated with that variable name and its contents are kept at that address in memory, right? When you reference a variable in your code, the system knows exactly where to look for that data because you've given that data an assigned location (well, really the system does, but that's neither here nor there).
To create a variable in JavaScript you must start with a name and there are some rules absolutely have to follow and a few conventions that you totally should as well.
The rules:
The conventions:
In JavaScript this is relatively easy.
var city = "Mountain Home";
Let's step through:
Here I am both declaring the variable and assigning a value in the same statement. I could just as easily split this up into two separate statements like so:
var city; city = "Mountain Home";
Well, that's great, but what can I keep in my little boxes and how do I do stuff with them?
The latest ECMAScript standard defines seven different data types.
var nullVariable = null;
var vacantVariable;
var currentYear = 2017;
var myName = "Michael";
To do stuff with these data types we need a way to perform 'operations' on them and, so, enter the operators:
A few of these operators do double duty. The '+', for instance, is also used for concatenation, which--essentially--just joins variables--usually character strings--together end-to-end. If I have a variable named firstName and a variable named lastName and I want to output them to look like that person's full name, I can 'concatenate' them using the '+' operator like so:
document.getElementById("fullname").innerHTML= firstName + lastName;
Because the '+' is responsible for two distinct and separate operations, it is referred to as 'overloaded' and it can be kind of a problem, if you're not careful.
JavaScript has dynamic typing, which means that you do not have to specify a data type when you declare a variable and that data types can be changed after a variable has been declared. Provided there are no...ambiguities...the interpreter will try to work with variables as directed. In cases where there is some question--bad syntax, confusing phrasing, etc.--the interpreter will make a judgement call and try to do what it 'thinks' your intentions are, even if that means converting, or recasting, the data type of a variable. As with all things in life, this is both a good and a bad thing. Good in that it means the language is flexible enough to accommodate and adapt to small, simple issues of syntax; bad in that it can have some unintended consequences.
As example:
"5" + 2 --> 52
The '5' is inside quotation marks, which marks it as a string literal. Even though it looks like a number, the interpreter will respect the contents of the string and leave it as is. The number '2,' however, is fair game. The interpreter will look at the overall context of the statement, assume that the '+' is being used to concatenate rather than for addition and recast the number '2' into a string value of "2." It will then perform the concatenation operation resulting in output of "52," or "5" and "2" output end-to-end.
"5" - 2 --> 3
Here there is no ambiguity. The minus sign only has the one function, right? So, the interpreter 'assumes' that you, in fact, want to subtract '2' from '5' and converts the string "5" into the number data type. It then does the math and outputs the result, which is '3.'
"5" * "2" --> 10
Again, there is no ambiguity as to the intent of the statement. The asterisk indicates that you want these values multiplied together and even though they are both strings, the interpreter will recast them as numbers, multiply them together, and then output the result, which is '10.'
So, variables can be changed and they can be recast, but what about instances where you don't want the variable value to be changed--whether on purpose or on accident?
Constants are--for the most part--inviolate. Variables specifically declared as constants cannot be modified during the normal execution of the program. They are a read-only reference to a value. To declare a constant variable you use the 'const' keyword when you first declare the variable.
const taxRate = .08;
The important distinction here is that this does not mean that the value it holds is immutable. It only means that the variable identifier cannot be reassigned, which makes it seem--again, for the most part--that the constant cannot be changed. There are exceptions where the content of the constant's assigned value can be changed with ease, but that's a discussion much further on down the road.
So, let's take a small break from that and talk just a bit about event driven programming.
The beauty of using JavaScript (or really any high-level programming language) is its abilty to foster and facilitate an interactive interaction with the end user. Static web sites are fine, but to really engage the end user, you have to provide a little bit of flash and sizzle. In development when we talk of interacting with the end user, we're talking about 'events.'
There are many individual types of 'events,' but all of them fall into two very broad categories:
Events are considered attributes of elements. They are inserted into the element to define what happens when that element is accessed.
As example, below I have a generic image of a completely black background called 'safe.png.'

In my <image> element, I have a few 'event' attributes, specifically, the onmouseover and onmouseout events.
When the user mouses over 'safe.png,' the image will change dynamically. The 'danger()' function will be called (we're going to talk about them shortly, so, stay tuned) and the image is changed to 'danger.png.' When the user mouses out of the element, the safe() function is called, the image reverts back to 'safe.png' and all is well in the world again.
Another common example of a user driven event is the button.
Below I have a generic
 element with an 'id' of 'testArea' followed by a series of buttons.

Testing...
 <button onclick="alertBox()">Alert box</button> <button onclick="promptBox()">Prompt box</button> <button onclick="confirmBox()">Confirm box</button>
When a button is clicked, an associated function is called and something happens. For the alert box, an alert box should pop up on the screen. For the prompt box, a prompt is generated asking the user for a name and then a message is generated in my named
 element. The confirm box is a combination action event as well.
In all cases, I am interacting with the user as a response to a user action (i.e. clicking a button). These interactions are dynamic and do not require the page to be reloaded.
In some instances, I am collecting information from the user, storing it in a variable, and then using that variable to provide user feedback.
A more robust list with examples and practical demonstrations can be found at w3schools.com.
We're definitely going to cover how to do these things (and more than few more things) over the next few weeks, but for now I would like you to think about all the different sites you visit and all the interactive elements contained therein. Some interaction is good. It is an expected and fantastic way to customize your site to create an individual user experience. Some interaction is bad. It will turn a user away from your site fast and, sometimes, for good. So, while it may be neat and otherwise impressive to add a bunch of stuff via JavaScript, it's important to understand that moderation is key. You can totally crack an egg by shooting it with a shotgun, but at what cost?


|
Xenomai
3.0.4
|
Data Structures | |
| struct | a4l_cmd_desc |
| Structure describing the asynchronous instruction. More... | |
Functions | |
| int | a4l_snd_command (a4l_desc_t *dsc, a4l_cmd_t *cmd) |
| Send a command to an Analoy device. More... | |
| int | a4l_snd_cancel (a4l_desc_t *dsc, unsigned int idx_subd) |
| Cancel an asynchronous acquisition. More... | |
| int | a4l_set_bufsize (a4l_desc_t *dsc, unsigned int idx_subd, unsigned long size) |
| Change the size of the asynchronous buffer. More... | |
| int | a4l_get_bufsize (a4l_desc_t *dsc, unsigned int idx_subd, unsigned long *size) |
| Get the size of the asynchronous buffer. More... | |
| int | a4l_mark_bufrw (a4l_desc_t *dsc, unsigned int idx_subd, unsigned long cur, unsigned long *new) |
| Update the asynchronous buffer state. More... | |
| int | a4l_poll (a4l_desc_t *dsc, unsigned int idx_subd, unsigned long ms_timeout) |
| Get the available data count. More... | |
| int | a4l_mmap (a4l_desc_t *dsc, unsigned int idx_subd, unsigned long size, void **ptr) |
| Map the asynchronous ring-buffer into a user-space. More... | |
ANALOGY_CMD_xxx | |
| #define | A4L_CMD_SIMUL 0x1 |
| Do not execute the command, just check it. | |
| #define | A4L_CMD_BULK 0x2 |
| Perform data recovery / transmission in bulk mode. | |
| #define | A4L_CMD_WRITE 0x4 |
| Perform a command which will write data to the device. | |
TRIG_xxx | |
| #define | TRIG_NONE 0x00000001 |
| Never trigger. | |
| #define | TRIG_NOW 0x00000002 |
| Trigger now + N ns. | |
| #define | TRIG_FOLLOW 0x00000004 |
| Trigger on next lower level trig. | |
| #define | TRIG_TIME 0x00000008 |
| Trigger at time N ns. | |
| #define | TRIG_TIMER 0x00000010 |
| Trigger at rate N ns. | |
| #define | TRIG_COUNT 0x00000020 |
| Trigger when count reaches N. | |
| #define | TRIG_EXT 0x00000040 |
| Trigger on external signal N. | |
| #define | TRIG_INT 0x00000080 |
| Trigger on analogy-internal signal N. | |
| #define | TRIG_OTHER 0x00000100 |
| Driver defined trigger. | |
| #define | TRIG_WAKE_EOS 0x0020 |
| Wake up on end-of-scan. | |
| #define | TRIG_ROUND_MASK 0x00030000 |
| Trigger not implemented yet. | |
| #define | TRIG_ROUND_NEAREST 0x00000000 |
| Trigger not implemented yet. | |
| #define | TRIG_ROUND_DOWN 0x00010000 |
| Trigger not implemented yet. | |
| #define | TRIG_ROUND_UP 0x00020000 |
| Trigger not implemented yet. | |
| #define | TRIG_ROUND_UP_NEXT 0x00030000 |
| Trigger not implemented yet. | |
Channel macros | |
Specific precompilation macros and constants useful for the channels descriptors tab located in the command structure | |
| #define | CHAN(a) ((a) & 0xffff) |
| Channel indication macro. | |
| #define | RNG(a) (((a) & 0xff) << 16) |
| Range definition macro. | |
| #define | AREF(a) (((a) & 0x03) << 24) |
| Reference definition macro. | |
| #define | FLAGS(a) ((a) & CR_FLAGS_MASK) |
| Flags definition macro. | |
| #define | PACK(a, b, c) (a | RNG(b) | AREF(c)) |
| Channel + range + reference definition macro. | |
| #define | PACK_FLAGS(a, b, c, d) (PACK(a, b, c) | FLAGS(d)) |
| Channel + range + reference + flags definition macro. | |
| #define | AREF_GROUND 0x00 |
| Analog reference is analog ground. | |
| #define | AREF_COMMON 0x01 |
| Analog reference is analog common. | |
| #define | AREF_DIFF 0x02 |
| Analog reference is differential. | |
| #define | AREF_OTHER 0x03 |
| Analog reference is undefined. | |
| int a4l_get_bufsize | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd, | ||
| unsigned long * | size | ||
| ) |
Get the size of the asynchronous buffer.
During asynchronous acquisition, a ring-buffer enables the transfers from / to user-space. Functions like a4l_read() or a4l_write() recovers / sends data through this intermediate buffer. Please note, there is one ring-buffer per subdevice capable of asynchronous acquisition. By default, each buffer size is set to 64 KB.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Index of the concerned subdevice |
| [out] | size | Buffer size |
References a4l_descriptor::fd.
| int a4l_mark_bufrw | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd, | ||
| unsigned long | cur, | ||
| unsigned long * | new | ||
| ) |
Update the asynchronous buffer state.
When the mapping of the asynchronous ring-buffer (thanks to a4l_mmap() is disabled, common read / write syscalls have to be used. In input case, a4l_read() must be used for:
In mmap configuration, these features are provided by unique function named a4l_mark_bufrw(). In input case, a4l_mark_bufrw() can :
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Index of the concerned subdevice |
| [in] | cur | Amount of consumed data |
| [out] | new | Amount of available data |
References a4l_descriptor::fd.
| int a4l_mmap | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd, | ||
| unsigned long | size, | ||
| void ** | ptr | ||
| ) |
Map the asynchronous ring-buffer into a user-space.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Index of the concerned subdevice |
| [in] | size | Size of the buffer to map |
| [out] | ptr | Address of the pointer containing the assigned address on return |
References a4l_descriptor::fd.
| int a4l_poll | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd, | ||
| unsigned long | ms_timeout | ||
| ) |
Get the available data count.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Index of the concerned subdevice |
| [in] | ms_timeout | The number of miliseconds to wait for some data to be available. Passing A4L_INFINITE causes the caller to block indefinitely until some data is available. Passing A4L_NONBLOCK causes the function to return immediately without waiting for any available data |
References a4l_descriptor::fd.
| int a4l_set_bufsize | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd, | ||
| unsigned long | size | ||
| ) |
Change the size of the asynchronous buffer.
During asynchronous acquisition, a ring-buffer enables the transfers from / to user-space. Functions like a4l_read() or a4l_write() recovers / sends data through this intermediate buffer. The function a4l_set_bufsize() can change the size of the ring-buffer. Please note, there is one ring-buffer per subdevice capable of asynchronous acquisition. By default, each buffer size is set to 64 KB.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Index of the concerned subdevice |
| [in] | size | New buffer size, the maximal tolerated value is 16MB (A4L_BUF_MAXSIZE) |
References a4l_sys_bufcfg(), and a4l_descriptor::fd.
| int a4l_snd_cancel | ( | a4l_desc_t * | dsc, |
| unsigned int | idx_subd | ||
| ) |
Cancel an asynchronous acquisition.
The function a4l_snd_cancel() is devoted to stop an asynchronous acquisition configured thanks to an Analogy command.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | idx_subd | Subdevice index |
References a4l_descriptor::fd.
| int a4l_snd_command | ( | a4l_desc_t * | dsc, |
| a4l_cmd_t * | cmd | ||
| ) |
Send a command to an Analoy device.
The function a4l_snd_command() triggers asynchronous acquisition.
| [in] | dsc | Device descriptor filled by a4l_open() (and optionally a4l_fill_desc()) |
| [in] | cmd | Command structure |
References a4l_descriptor::fd.


Match Play. Red leads 2-0 to 7. Should Red double? If doubled, should White take?
pips Red=106 White=133
(CorrectAnswer= 0/0, ErrorScore= 0)
Unlike the last couple of positions this only a double, not a redouble, so Red does not need to be so cautious with the cube and in fact this is a huge double.
Twenty-seven pips ahead and with an extra landing point in his outer board (the 9-pt) Red must double. For money, this would be a small pass. At this score, because of the redoubling potential, White has an easy take.
Not doubling is a blunder while a pass by White is merely a bad error.
Twenty-seven pips ahead and with an extra landing point in his outer board (the 9-pt) Red must double. For money, this would be a small pass. At this score, because of the redoubling potential, White has an easy take.
Not doubling is a blunder while a pass by White is merely a bad error.
Cube analysis 2-ply cubeless equity +0.573 (Money: +0.575) 0.778 0.032 0.000 - 0.222 0.013 0.000 Cubeful equities: 1. Double, take +0.909 2. Double, pass +1.000 (+0.091) 3. No double +0.813 (-0.096) Proper cube action: Double, take


{% extends 'base.html' %} {% block title %} Registration {% endblock title %} {% block content %}
Fill the below form to register as new user:


Sudoku is one of the most popular puzzle games of all time. The goal of Sudoku is to fill a 9×9 grid with numbers so that each row, column and 3×3 section contain all of the digits between 1 and 9. As a logic puzzle, Sudoku is also an excellent brain game. If you play Sudoku daily, you will soon start to see improvements in your concentration and overall brain power. Start a game now. Within no time Sudoku will be your favorite free online game.
The goal of Sudoku is to fill in a 9×9 grid with digits so that each column, row, and 3×3 section contain the numbers between 1 to 9. At the beginning of the game, the 9×9 grid will have some of the squares filled in. Your job is to use logic to fill in the missing digits and complete the grid. Don’t forget, a move is incorrect if:
Try and completed the puzzle in the shortest possible time. For each wrong answer a 10 second penalty will added to the Timer.


Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Medium
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Large
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Xlarge
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing. Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.
Xxlarge
Paragraphs usually form the bare bones of an HTML document; their styling can make or break the readability of content. As a bare minimum, they require good line-height and good spacing.


liquibase.change.custom
Interface CustomTaskChange
- All Superinterfaces:
- CustomChange
-
public interface CustomTaskChange
- extends CustomChange
Interface to implement when creating a custom change that does not actually generate SQL.
If you are updating a database through SQL, implementing CustomSqlChange is preferred because the SQL can either be
executed
directly or saved to a text file for later use depending on the migration mode used.
To allow the change to be rolled back, also implement the CustomTaskRollback interface.
If your change requires sql-based logic and non-sql-based logic, it is best to create a change set that contains a
mix of CustomSqlChange and CustomTaskChange calls.
- See Also:
CustomTaskRollback
,
CustomSqlChange
|
Method Summary |
void |
execute(Database database)
Method called to run the change logic.
|
execute
void execute(Database database)
throws CustomChangeException
- Method called to run the change logic.
-
-
- Parameters:
database
-
- Throws:
CustomChangeException
- an exception occurs while
processing this change
Copyright © 2016 Liquibase.org. All rights reserved.


Preparation time
less than 30 mins
Cooking time
10 to 30 mins
Serves
Serves 2
Heat the oil in a wok or large frying pan, then add the cardamoms and cassia bark. Fry for 1 minute.
Tip in the onions and fry for 1 minute.
Add the beef, followed by the chilli and garlic and fry on a medium heat for 4 minutes.
Then add the turmeric, salt, cumin and coriander and stir for another minute.
Mix the tomato purée with 150ml/5fl oz of hot water (double this amount if you want more sauce) from the kettle and add to the pan. Cook for 3 minutes.
Mix in the ginger and sprinkle over the garam masala and the coriander leaves.
Serve immediately with a naan or in hot pitta breads.


CloudFormation helpers¶
What is this?¶
The following methods are added to clients instantiated using Betterboto:
Methods¶
-
betterboto.cloudformation.
create_or_update
(self, **kwargs)[source]¶ For the given template and stack name, this method will create a stack if it doesnt already exist otherwise it will generate a changeset and then execute it. This method will wait for the operation to complete before returning and in the instance of an error it will print out the stack events to help you debug more easily.
- Parameters
self – cloudformation client
kwargs – these are passed onto the create_stack and create_change_set method calls
- Returns
None


Fonts from Google
with preloading fons <link rel="preload" as="font" >
| pros | cons |
|---|---|
| Native | Bad browsers support ~ 59.79% |
| Prevents FOUT and FOIT | Can increase "first screen" rendering time (better to use it only for the one critical font.) |
| Fastest loading fonts speed | ^ |
| Can be used for preloading other static resources | ^ |


--- layout: post title: Install Arch Linux On HP Spectre 13t-3000 excerpt: Installation and configurations of Arch Linux on an ultrabook with new hardware. categories: - Linux tags: - [Linux, Arch] ---
I decided to install Arch Linux on my new ultrabook. I have been mainly using Ubuntu for several years. Since this ultrabook is quite new, I want more control on it and I think Arch Linux will be more suitable for this case. I also considered Gentoo, which is more customizable than Arch, but at the end I think it is not worth wasting so much time on compiling just to gain probably little performance improvement. In this post, I will talk about installation and configurations of Arch Linux on my new ultrabook, HP Spectre 13t-3000. Many of the following steps are from the Arch Wiki, but I think it is still necessary to write this post because the wiki tries to cover everything while I just need something useful for me. I would write the instructions that I actually use and leave out other tedious parts.
Since this ultrabook comes with Windows 8 preinstalled, I first boot into the Windows 8 and make sure there is no problem with the hardware. It seems that under Windows 8, everything works fine. The screen is gorgeous, and Windows 8 becomes more easy to use when using the touchscreen. The backlit keyboard is beautiful, and wireless, audios and everything else all work out of the box.
Download the Arch Linux ISO from here. I use my Ubuntu system on an other laptop
to make the UEFI bootalb USB. I have an 8 GB USB as installation medium, and it
was shown as /dev/sdb/
in my Ubuntu system using lsblk
. The following
command will destroy everything in the USB and make a bootable USB:
dd bs=4M if=/path/to/archlinux.iso of=/dev/sdb && sync
And that's all. Very easy.
Insert the USB into the new ultrabook, press "Power" button and then F10
to
enter the UEFI BIOS settings. Here, I changed three things:
Now we will enter the Arch live environment. It is just a shell. Arch
installation medium uses Zsh
as default shell, which will simplify a lot of
typing during installtion. The default keyboard layout(US), language(English)
and wired Internet connection(DHCP) all work for me. Although this ultrabook has
no Ethernet port, I have a USB 3.0 hub with Ethernet port. So I was actually
using wired Internet now. I didn't need to make any changes for these settings.
Using lsblk
, I can see that the disk of the ultrabook was shown as
/dev/sdb/
. Through following steps, I will delete all the original partitions
and only create a /
partition for Arch Linux. Since it is a UEFI motherboard,
I also need to create an extra partition for EFI System Partition(ESP).
gdisk /dev/sdb
d
. Repeat multiple times to remove all the partition on the disk.N
. The first sector is default, the last sector is +1024M
, and the Type
is ef00
. This partition is for ESP.N
. Make all the rest to be the root /
partition.w
. Apply all the changes.Swap partition is not necessary. After installation, you can use swap file and it is more flexible because you can easily resize it.
I still use ext4
as my root filesystem although I do want to try Btrfs
.
mkfs.fat -F32 /dev/sdb1 mkfs.ext4 /dev/sdb2
Next, we need to mount the partition as we are going to install the system on the newly created partitions.
mount /dev/sdb2 /mnt
Then we make a new directory /mnt/boot
and mount the ESP to it:
mkdir /mnt/boot mount /dev/sdb1 /mnt/boot
We are now going to actually install Arch.
pacstrap -i /mnt base base-devel
When this command ends, a basic Arch Linux is already installed! Let's now do some necessary configrations.
First we generate the fstab
file:
genfstab -U -p /mnt >> /mnt/etc/fstab
You might check the /mnt/ect/fstab
file as it is highly recommended by the
Arch Wiki.
Next, chroot
into the new system:
arch-chroot /mnt /bin/bash
Well, now we are going to use bash
, which is kind of hard to use as an
interactive shell compared to Zsh
.
I will also need a Chinese locale. So:
vi /etc/locale.gen
Uncomment the line of zh_CN.UTF-8 UTF-8
, then use locale-gen
to generate new
locales.
Next, create a /etc/locale.conf
file:
echo LANG=en_US.UTF-8 > /etc/locale.conf
And export it:
export LANG=en_US.UTF-8
You can change time zone by:
ln -s /usr/share/zoneinfo/<Zone>/<SubZone> /etc/localtime
Change the hostname(you can also use the hostnamectl
command):
echo 'hp-spectre' > /etc/hostname
For wired Internet connection, I only need dynamic IP now:
systemctl enable dhcpcd.service
Set the password for root:
passwd
For the moment, I think the above configurations are enough and let's now install a bootloader.
Instead of grub
, gummiboot
is recommended for UEFI motherboards. Install gummiboot
:
mount -t efivarfs efivarfs /sys/firmware/efi/efivars pacman -S gummiboot gummiboot install
Then we need to manually create an file under /boot/loader/entries/
. Let's say
it's arch.conf
. Add following contents to it:
title Arch Linux
linux /vmlinuz-linux
initrd /initramfs-linux.img
options root=/dev/sda2 rw
Note here the root should be /dev/sda2
, not /dev/sdb2
because when you
normally boot the system without the USB installation medium, the disk of the
ultrabook should be /dev/sda/
although right now it was /dev/sdb/
.
OK. The installation of Arch Linux is finished. Up until now, we only use a few very basic shell commands, and it should be quite easy even for someone who only has limited knowledge about Linux.
Let's reboot and go to the tedious configuration part.:(
reboot
After rebooting, we can login as root using the password, and the wired Internet should work. The USB installation medium is useless now and you can remove it.
let's first install sudo
and zsh
:
pacman -S sudo zsh visudo
Uncomment the following line:
%wheel ALL=(ALL) ALL
Add a user named "qjp", make it a member of group "wheel" and use zsh
as the
login shell:
useradd -m -g users -G wheel -s /bin/zsh qjp passwd qjp
I probably will use some x86 applications on my x64 system, so I need to enable
the multilib
repository. Just uncomment the multilib
section in
/etc/pacman.conf
and run a force fresh of package list:
pacman -Syy
First we need to instal X Window System and mesa
for 3D support:
pacman -S xorg-server xorg-server-utils xorg-xinit mesa
Install Intel's video driver:
pacman -S xf86-video-intel
We need the following package in order to make the touchscreen and touchpad work properly:
pacman -S xf86-input-synaptics
Because of the high DPI screen(13.3-inch QHD screen), I decided to use KDE Plasma Desktop. Currently it has the best support for HiDPI screen among all the mainstream desktop environments. Since I want to have the entire KDE software compilation, based on this article, it is better to install KDE by:
pacman -S kde-meta
Then enable the KDE Dispaly Manager(KDM):
systemctl enable kdm
In order to display Chinese properly, install following fonts for Chinese:
Reboot, and in less than 5 seconds(really, really fast!), we should be able to see a login window and we can login as 'qjp' and start using the GUI now!
After entering KDE, I found everything on the screen was still so small. This didn't bother me so much right now because I had been working in a small terminal up until now and kind of got accustomed to it. KDE can't automatically adjust itself according to current DPI. So we still need to manually change its settings. But wait a minute, let's first connect to the Internet via wireless networks.
At first, I was attempting to use a graphical network manager. I tried wicd
but it didn't always work. Actually I only succeeded connecting to the wireless
networks a few times using wicd
. So I finally gave up and turned to Arch's
default command-line tools.
First install some essential packages:
pacman -S iw wpa_supplicant dialog
Then we use wifi-menu
to set up wireless networks:
wifi-menu
Select the corresponding interface and wireless network. Enter password if
necessary. My wireless interface name is wlo1
. The above command will result
in a configuration file under /etc/netctl/
. Usually the file name has the form
of interfacename-networkssid
. Enable the wireless network named "mynetwork" of
interface wlo1
using:
netctl enable wlo1-mynetwork
At Penn State, the psu
wireless uses WPA2-Enterprise for authentication, which
is not as easy to configure as WPA2-Personal. Combining this trick on Arch Wiki
and the instructions on http://wireless.psu.edu, this configuration file works
for me:
Description='Automatically generated profile by wifi-menu' Interface=wlo1 Connection=wireless Security=wpa-configsection ESSID=psu IP=dhcp WPAConfigSection=( 'ssid="psu"' 'key_mgmt=WPA-EAP' 'eap=TTLS' 'anonymous_identity="your_psu_access_id"' 'identity="your_psu_access_id"' 'password="your_psu_access_id_password"' 'ca_cert="/etc/ssl/certs/AddTrust_External_Root.pem"' 'phase2="auth=PAP"' )
I also installed wpa_actiond
and ifplugd
for automatic switching of
profiles. Just enable the services and they will switch between multiple
profiles automatically:
systemctl enable<EMAIL_ADDRESS>systemctl enable<EMAIL_ADDRESS>However, if I choose netctl-auto
to automatically manage the profiles, I need
to run netctl disable wlo1-mynetwork
to disable the profiles that I have
enabled using netctl
, otherwise these profiles will start twice at boot.
Currently wireless networks work properly and the background service
automatically handles everything for me.
KDE has great support for HiDPI screen, although there are still some issues. We mainly need to adjust the setting of two parts:
Below are my settings:
128
.172
. Also change the font sizes of toolbar, window title and Taskbar all
to 9
.$HOME/.config/fontconfig/fonts.conf
, and change the hintstyle from
hintmedium
to hintslight
.Now most KDE applications should look pretty good.
For GTK+ applications, install oxygen-gtk2, oxygen-gtk3
and kde-gtk-config
packages.
In firefox, go to about:config page, and change the value of
layout.css.devPixelsPerPx
. I set the value to be 1.7, which is slightly
smaller than: (Current Font DPI)/96=172/96=1.8
.
Neither Chromium nor Google Chrome has HiDPI support under Linux right now although they do support HiDPI through chrome://flags under Windows.
The touchpad works properly. However, due to the silly "control zone" design of HP Spectre 13t-3000, the touchpad is extremely wide and that really bothers me a lot when I am typing. Add following command to autostart of KDE to disable touchpad when typing:
syndaemon -t -k -i 2 -d &
To my suprise, audio is the hardest part to configure. At first, I could listen
to local music using headphone. However, I could not make the speaker to work
using alsamixer
command from the alsa-utils
package. Also, the flash will
also crash. Starting firefox from terminal and then playing flash videos on
youtube, I found the problem was also caused by the audio system. The error
message was something like:
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
I googled around, and tried many solutions including adding a $HOME/.asoundrc
file and changing settings in KMix
, but still failed. Finally I tried to
install pulseaudio
and suprisingly, the vlc player now could play local music
normally. Then I installed pulseaudio-alsa
package, which solved the problem
of flash player.
Digression: I found the version of flashplayer is older in Arch than that in Ubuntu, which is kind of amazing because Arch is said to be always to keep up-to-date.
The solutions are far from perfect. Several problems still exist. For example, the Event Sounds will sometimes automatically be reset to the maximum volumn without any indication and that really freaks me out. I have to mute it.
Besides, I also need to disable the "beep" since it was so annoying. Every time I type a "tab" in shell and there is no completion, it will make a loud "beep", which is so silly. Add the following command to autostart of KDE to disable it!
xset b off
Follow this article on Arch Wiki to install and configure fcitx.
I also installed fcitx-sogoupinyin
and fcitx-cloudpinyin
. The fcitx skin
milk looks great under KDE and is highly recommended. After installing the
skin via fcitx's configuration panel, you need to click Configure Skin, choose
SkinFont tab and check "Font size repect dpi setting", or it will look too
small.
I also disable various shortcuts of fcitx since they will cause collisions with Emacs.
The backlit keyboard works out of the box. In System Settings, I make the
caps lock
to be an extra ctrl
. This is what I must do in every operating
system I use because I think the place of caps lock
is one of the most stupid
designs of the keyboard.
The default shortcuts of KDE are so different from Gnome and Unity that I have to memorize these new bindings again.
These are what I set for my KDE shortcuts(I change some original settings):
ctrl+meta+{left,right,up,down}
to switch workspaces. I have four workspaces,
which is the same as Unity.shift+alt+up
to maxmize window.shift+alt+down
to minimize window.shift+alt+{left,right}
to quickly tile window to the left or right.meta+alt+{left,right,up,down}
to move current window to a different
workspace.meta+w
to toggle present windows in current desktopmeta+ctrl+{-,
}= to decrease/increase opacity of active window by 5%.
Strangely, the "extra ctrl" key caps lock
can not be used in shortcuts related
to desktops, such as ctrl+{F1,F2,F3,F4,F8,F10,F12}
, but it can be used when
combined with other function keys like ctrl+alt+{left,right,up,down}
.
Since I am an Emacs user, so readers can skip this part if you are not.
To support fcitx in Emacs, use following command to launch Emacs:
LC_CTYPE=zh_CN.UTF8 emacs
I maintain my own Emacs settings in a private repo on Bitbucket, and migration to GitHub is in progress. There are several problems when porting my old settings to the new one.
org
package from the org mode's elpa. The org mode
often
complains Invalid function: org-with-silent-modifications
. I found a
solution on this thread: start Emacs with emacs -Q
, and then reinstall the
org
package. This perfectly solves the problem.In order to get rid of the graphcal window when using EasyPG, the following setting is not enough:
(setenv "GPG_AGENT_INFO" nil)
because Arch uses gnupg2
instead of gnupg1
. Install gnupg1
from AUR,
then add following code to Emacs' settings:
(when (file-executable-p "/usr/bin/gpg1") (setq epg-gpg-program "/usr/bin/gpg1"))
last-command-char
no longer exists. Replace
this variable with last-command-event
in every package that uses this
variable.seahorse
and change the password to be empty. This is not a safe way. However, it solved the problem.vboxdrv
is not automatically enabled so we
need to use modprobe
to enable it. The more convenient way is to set up a
file named virtualbox.conf
under /etc/modules-load.d/
and just put the
line vboxdrv
in it.firefox-kde-opensuse
from AUR to replace the
official firefox in order to associate proper applications with different file
types.pip
, python2-pip
is needed.
Ruby. RubyGems seems to be installed under personal directory instead of
system directories by default. So it is necessary to modify the PATH
environment variable:
PATH=$PATH:$(ruby -e 'puts Gem.user_dir')/bin
texive-*-doc
packages were
removed from Arch's repo on purpose according to this thread. Running texdoc
packagename
will return no result. Although this might be understandable
since most of the documentation were just pdf files and may take up too much
disk space, I still felt kind of disappointed. My current solution is to
install texlive-localmanager-git from AUR which is mentioned in this wiki
page. Then use tllocalmgr installdoc
to install the documentation that I
want.Finally, we come into the "Conclusion" part. I think I left out a lot of other useful settings because I just can't remember them when writing this post!
In conclusion, there are no big problems installing (Arch) Linux in this ultrabook, and nearly everything is great! The booting speed is fantastic(less than 5 seconds) and the KDE Plasma Desktop looks really beautiful in the QHD screen.
One other important thing I forgot to mention: with screen brightness set to 10%, this ultrabook can work more than 5 hours in KDE. This figure is not quite good as it is a Haswell based ultrabook. It is said that this ultrabook can at most have 9 hours under Windows 8. The battery life seemed even worse when compared to the Macbook Air. Although it fails to meet my original expectations, given the fact that it runs Linux, I think it is still acceptable.


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We all love watching movies. It’s helpful to use genre as a way to decide what movie to watch, without reading full movie descriptions. But it’s not always easy to identify genre of a movie. Even if one is already identified, it may not be one you agree with. What if there’s a way to identify genre using natural language processing, based on movie plot? Possible applications could be to predict genre when there is none available. Perhaps more common though, is to help identify alternative applicable genres even when there is one identified.
Data Source
Wikipedia movie plots data from Kaggle
(34886 movies)
Code at Github
Here is the github repo for this project: link
Tools Used
Python is used for data acquisition, cleaning and modeling. Specific python libraries used include:
- Modeling: scikit-learn, imbalanced-learn
- Natural language processing:
- NTLK: for sentiment analysis
- Spacy: for text preprocessing and cleaning
Methodology Used
- Genre clean-up:
- Data initially had as many as 2264 genres. Many were either too granular or mis-spellings, so some clean-up is needed. For example, the following were re-mapped as “comedy” genre:
‘comedey’, ‘spoof’, ‘standup’, ‘slapstick’, ‘parody’
- Low-count genre entries were removed (kept top 95%)
- This clean-up process resulted in 12 genres
- Data initially had as many as 2264 genres. Many were either too granular or mis-spellings, so some clean-up is needed. For example, the following were re-mapped as “comedy” genre:
-
Data is randomly sampled from ~30,000 to 10,000 with weights biased towards lower count genres for NLP processing and training speed.
- Each sentence in a movie plot text is then evaluated for sentiment using NTLK’s vader analyzer. The results are then averaged to be treated as a sentiment feature for that movie entry.
(See Jupyter notebook for steps 1-3: (code here) )
-
Topic modeling is used to reduce the dimensionality of word features to be used in classification training. Before topic modeling can be done, stopwords, punctuations, and entities were removed from the movie plot text. The text is also tokenized and lemmatized.
-
Both Non-negative Matrix Factorization (NMF) and Latent Semantic Analysis (LSA) topic modeling were tried. They gave similar results when used in supervised classification modeling later, but I decided to use NMF in the final model because the topics were more interpretable than the LSA ones. THE NMF yielded 25 topics were seemed to be representative of certain genres. For example:
- Topic 1 (Romance): love, fall love, fall, marry, marriage, girl, meet, friend, wedding, story
- Topic 2 (Sci-Fi): alien, planet, spaceship, human, saucer, destroy, space, base, ship, scientist
(See Jupyter notebook for steps 5,6: (code here) )
- For final genre prediction, Random Forest, KNN and Gradient Boost. Random Forest gave slighly better results than GradientBoost so that was chosen as final model. See Jupyter notebook for steps (code here)
Results
- Random Forest yielded the best F1 weighted score of 0.43 on test data set
- As seen from the results, “Sci-Fi” and “Western” got best prediction results, but “Drama”, “Comedy” were among the worst. Note drama and comedy also had the largest count of movies, so it looks like there is opportunity to better break down those genres into sub-categories that could yield better prediction results
Conclusions
- Genre categorization impacts the prediction results so more analysis on optimal categorization would be helpful
- Multi-label classification instead of multi-class classification is also a great next step to provide better insights for potential applications as movies often can belong to multiple genres


Path planing module
- Generate a drivarable trajectory
- Search
- How to get a smallest cost trajectory
- A* algorithm
- Find a path with minimal cost with heuristic function(distance based)
- Completeness
- If path exist , it always find it
- Optimality
- Discrete
- Solution it finds are not always drivarable
- And other discrete methods and probabilistic methods
- Prediction
- Surrounding items always moving
- Model based
- Process models
- Using dynamic model to prediction
- Steer to right? Higher probability to turn right
- Multi-modal estimator
- Compare k-1 and k S state(in Frenet)
- Prob: if(S bigger at k)(Lane change)else(go straight)
- How? Simply use Naive bayesian
- Logging data
- Compute mean and covaraince of DB
- Using bayesian compute probability
- c++ Coding
- Data driven approach
- Trajectory clustering
- Offline:Logging vehicles behavior and learn
- Online:Based on learned information, make decision
- Behavior planning
- Define the behavior of each state
- Finite state machine
- Define the each state's flow
- Keep lane
- Change lane
- Follow front vehicle
- Slow down
- etc.
- Define states flow rules
- Cost based
- Speed cost
- if(speed>max)(cost =1),else(cost = 0)
- Lane change cost
- (Lane number -target lane number)^2
- Ratio of deltaD/deltaS in frenet
- Choose a state from candidate state
- Evaluate each states' cost
- Pick minimal one
- c++ Coding
- Behavior update time is longest
- Trajectory Generation
- Behavior generated, then appropriate trajectory should be generated
- A* based motion planning
- Discrete and not drivarable trajectory
- Hybrid A*
- Combine with bicycle model to generate a drivarable trajectory
- Not always find a solution
- Solution it finds are not always optimal
- Trajectory constraint
- Coordinate
- Trajectory selection
- Consider the prediction module results
- Jerk minimizing
- Quintic polynomial trajectory generation
- Acceleration
- Centripital force
- Calculated with steering angle
- Time limit
- Distance to obstracle
- Time to goal
- All the constraints seleted by cost
- Hard to balance each cost
- c++ Coding
- Recent research
- No map based path planning
- Motion planning at intersection
- Reinfrocement based Deeptraffic


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Mohit's VDI is not working.It will hamper deadline
Velocity Issue
JIRA CJ057-1234 deadline cannot be completed due to ecore .
DM dependency.
Aug Release successful
To close all the open bugs for previous release
eCore Patch release successful
eCore Jira must be raised before every sprint


WISHMASTER(LIVE Entertainment) Directed by Robert Kurtzman
As if there weren't already enough good reasons not to do drugs on the job, "Wishmaster" offers one more; You might get loaded and shatter a priceless Persian statue, thereby releasing an evil genie on the world. Wouldn't want that on your conscience now, would you?
True, "Wishmaster" may run into trouble qualifying for any Oscars, but rest assured it's a shoo-in to win in the Goriest Feature-Length Public Service Announcement category -- should anyone see fit to create one. This utterly pointless foray into idiocy begins when a malevolent "Djinn" is accidentally freed from the opal he's been locked inside for centuries, by the manner described earlier. Thankfully, for the Djinn's purposes, he's been unleashed in a part of California inhabited solely by greedy morons, so this genie-meanie has no trouble finding suckers willing to trade their immortal souls in exchange for some flashy material rewards.

Trying her best to show dread and anxiety at every opportunity Lauren contorts her face into a variety of grotesque expressions that should make Jim Carrey jealous, and to give the movie some glimmer of horror-film credibility "Nightmare On Elm Street" veteran Robert Englund hangs around just long enough to cough up a slimy demon, once again putting to use all those years of classical theater training he often spotlights in his biographies.
Makeup artist-turned-director Robert Kurtzman's idea of a good scare is a phone that rings ridiculously loudly or a masked actor who pops in out of nowhere to startle someone. When in doubt, he splashes around as much blood as possible to cover up the fact that "Wishmaster"'s script is about as consistently terrifying as "Pocahontas."
"Forget Barbara Eden! Forget Robin Williams!" warns a genie expert midway through the madness. She forgot to add you should forget about seeing "Wishmaster" while you're at it. James Sanford
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