w***n
发帖数: 1084 | 1 Actually if just in 2D/3D, you probably can try a Delaunay triangulation too, and your nearest neighbor shouldn't be too far away from the neighborhood in the triangulation.
It is easy to prove that the nearest neighbor $B$ of $A$ should be in $A$'s neighborhood in the triangulation.
Because if it didn't, you can always find a triangle that is made of $A$ and its two neighbors containing $B$, which violates the Delaunay (voronoi) property. |
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g****t
发帖数: 31659 | 4 谢谢。我学习下。
之前看过一个类似compressed sensing的文章，
说满足一定统计条件的数据点低维坐标如果是一组nearest neighborhood 的点，
那么在高维可以渐进概率为1也是nearest。
你听说过这种东西吗？
: 是网站挂了. 机房断电, 机器没有自动起来. 你要想看说明去
: http://github.com/aaalgo/kgraph
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p********6
发帖数: 65 | 5 朋友组里面的职位，Manager 人很好，他们希望能找一个会讲中文的申请者，因为有时
需要跟大陆和台湾的公司打交道。可以直接公司网页申请，或者发信到freewheelin@
gmail.com
Hardware Engineer
Apply Now Apply now
Date: Jul 6, 2015
Location: Santa Clara, CA, US
Hardware Engineer
Location
US- CA, Santa Clara
Req # 26441
Functional Area
Supply Chain Management
Preferred Experience
Senior Level
Preferred Education
Bachelors Degree
Position Summary
Citrix is a leading provider of virtual computing solutions that help people
work and play from anywhere, on a... 阅读全帖 |
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e**********n
发帖数: 359 | 6 This is similar to Ising model with nearest neighbor and next nearest
neighbor interactions. |
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w***r
发帖数: 66 | 7 Q1.
Question data:
Portfolio
Market, Investment
S&P 500, $50,000
WHEAT, $250,000
Forecasts
Expected 1 day return, Expected 1 day volatility
0.25%, 2%
0.1%, 3%
FORECAST correlation between S&P 500 and wheat is 20%
Questions:
A1. Calculate the portfolio 1 day expected return (both in percentage terms
and in dollars terms
(show working))
A2. Calculate the portfolio 1 day volatility (both in percentage terms and
in dollars terms (show
working)) – hi... 阅读全帖 |
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C******a
发帖数: 32 | 8 If IBM's latest close price is 179.99, its nearest ATM call is "IBM US 11/16
/13 C180 Equity". If go back one month, stock price might be 169, and the
nearest ATM call could be "IBM US 10/15/13 C170 Equity".
Question is, for any stock, if going back one year, how do I get the ATM
call ticker for every day during that period?
For today's ATM call, I am calling getdata(bb_connection, {'IBM US Equity'},
{'CHAIN_TICKERS'} ) in Matlab.
Thank you for any help!! |
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d*******o
发帖数: 493 | 9 我觉得陈老师的想法很好。统计的预测理论都建立在两个基本点： least-square 基础上的
generalized linear model 和 nearest-neighbor的决策模型. least-square的优点是
low variance and high bias. nearest-neighbor 的优点是high variance and low
bias. 您的意思是想把两个结合起来，先segment再linearly fitting, 对吧？想
法很好啊。唯一的缺点就是这样的模型只能解释，不能用来预测，因为over-fitting会造成
同时的high variance and high bias. |
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c***z
发帖数: 6348 | 10 阶段性总结
Overall this task can be conducted iteratively between two steps: the
training step using clustering of labeled samples and the bootstrapping step
adding unlabeled samples to increase coverage. Currently we can consider
the first iteration of the training step complete and move on the the
bootstrapping step.
1. 2000+ good and 2000+ bad partners provided；
2. I conducted hierarchical clustering analysis with seven metrics on a set
of good and bad samples, luckily the clusters are highly corr... 阅读全帖 |
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c***z
发帖数: 6348 | 11 阶段性总结
Overall this task can be conducted iteratively between two steps: the
training step using clustering of labeled samples and the bootstrapping step
adding unlabeled samples to increase coverage. Currently we can consider
the first iteration of the training step complete and move on the the
bootstrapping step.
1. 2000+ good and 2000+ bad partners provided；
2. I conducted hierarchical clustering analysis with seven metrics on a set
of good and bad samples, luckily the clusters are highly corr... 阅读全帖 |
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l*******s
发帖数: 7316 | 13 http://www.dipolnet.com/does_outdoor_antenna_increase_the_speed_of_lte__bib532.htm
The role of an outdoor antenna for the LTE speed
It often happens that, despite very good LTE signal level, the transmission
speed is unsatisfactory. In this case, one should use an external antenna,
and direct it to another base station (often poor rates are associated with
a large number of users connected to a single base station).
Another way to increase the speed is to check whether the service provider
offer... 阅读全帖 |
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K**S
发帖数: 318 | 14 The following itineraries illustrate three ways to spend one day in
Singapore. They all assume you will start from and end your trip at your
lodgings. You can select the activities that sound interesting to you and
follow them in any order, including mixing and matching the morning/
afternoon/evening sections from the three different itineraries as you like.
All listed prices are in Singapore dollars. The estimates provided below do
not include food, drinks or the cost of transportation between ... 阅读全帖 |
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l******t
发帖数: 2113 | 15
ED invoice=
US base MSRP*.92*.93 (round up to the nearest $5) + options MSRP*.92 (round
up to the nearest $5) + acq. fee + destination fee
这个基本算出来跟真正的ED invoice差别应该在几十刀以内
另外，可以不算acq. fee，因为可以单独pay up front |
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l******t
发帖数: 2113 | 16
ED invoice=
US base MSRP*.92*.93 (round up to the nearest $5) + options MSRP*.92 (round
up to the nearest $5) + acq. fee + destination fee
这个基本算出来跟真正的ED invoice差别应该在几十刀以内
另外，可以不算acq. fee，因为可以单独pay up front |
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w*******y
发帖数: 60932 | 17 Free wireless router for sitting through an hour long webinar about Intel's
new processors. Courtesy of Intel and Microcenter I believe. Router will
have to be picked up from a B&M Microcenter though. Hope this isn't a
repost!
Link:
Micro Center Presents: Latest and Greatest 2nd Generation Intel Core
Processors and Motherboards - Presentation by Intel
Registration for Online Webinar:
Jan 9th Session 1 - 1:00 PM EST - 12:00 PM CST - 11:00 AM MST - 10:00 AM PST
[Register Now]
Jan 9th Session 2 ... 阅读全帖 |
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w*******y
发帖数: 60932 | 18 Special begins Februry 5. Runs thru March 6.
"Share the love this Valentine's Day. Get a bonus $10 iTunes card when you
cash in $40 or more for an iTunes eCertificate. More music, more apps and
movies. No fee. Gotta love it!"
Clicking learn more brings up:
iTunes
Cash in $40 or more.
Get a bonus $10 iTunes card.How It Works:
1. Go to the Coinstarmachine locator to find the nearest participating
machine.
2. Bring your coins to the nearest Coinstar machine and cash in a minimum of
$40.
3. Ch... 阅读全帖 |
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g****r
发帖数: 306 | 20 1) Pat Talamantes, McClatchy's chief financial officer, said, "We've
completed several successful financial transactions this year that have
allowed us to pay down debt while preserving cash flows. Our debt reduction
efforts have been focused on the nearest-term maturities, including our
2014 bonds and our qualified defined benefit pension liability. The
principal amount of our nearest debt maturity, the 2014 bonds, is now only $
92.5 million, an amount that is quite manageable using internally... 阅读全帖 |
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b*******8
发帖数: 37364 | 21 买提将军们都是奉行K-nearest Neighbor的。自己数理基础好，就以为国人都好。其实
拿GRE数学题，翻译成汉语，普通中国人没几个能做对几题的，虽然都是初中东西。 |
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p********7
发帖数: 18007 | 22 Camping in my nearest place is 23 $ per night |
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s********n
发帖数: 26222 | 23 veterans today issues a scathing report on this propagandist ploy. Good
report. Another sign veterans aren't buying the ploy of deception.
“Bin Laden” Heroes Probably Murderered to Keep Them Quiet. Some Possibly
Killed in Abbottabad Helicopter Crash Months Before
Today 31 NATO troops, 20 of them Navy Seals from the Osama bin Laden
operation died in what is reported as a helicopter crash in Afghanistan.
The chances of this story being true is almost nil. The chances of this
being a staged coveru... 阅读全帖 |
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s********n
发帖数: 26222 | 24 veterans today issues a scathing report on this propagandist ploy. Good
report. Another sign veterans aren't buying the ploy of deception.
“Bin Laden” Heroes Probably Murderered to Keep Them Quiet. Some Possibly
Killed in Abbottabad Helicopter Crash Months Before
Today 31 NATO troops, 20 of them Navy Seals from the Osama bin Laden
operation died in what is reported as a helicopter crash in Afghanistan.
The chances of this story being true is almost nil. The chances of this
being a staged coveru... 阅读全帖 |
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c**i
发帖数: 6973 | 25 VOA Chinese, Sept 5, 2011
http://www.voanews.com/chinese/news
/20110905-shanghai-group-129252653.html
("俄罗斯驻华大使 [星期一] 表示，上海合作组织扩充和接收新成员不可避免。* * *
拉佐夫并未透露，上合组织未来将接收哪一个具体国家作为新成员，或是俄罗斯将支持
哪一个国家加入上海合作组织。但俄罗斯媒体曾报导，为了平衡中国在上合组织以及中
亚地区的影响，俄罗斯希望印度能加入上合组织")
Note:
(a) India Gives Go Ahead for SCO Membership. Press Trust of India, Aug 18,
2011
http://www.hindustantimes.com/India-gives-go-ahead-for-SCO-memb
(external affairs minister S M Krishna "'totally ruled out' that any country
could exert pressure on I... 阅读全帖 |
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P*****t
发帖数: 4978 | 26 美俄对抗新一轮又来了
Putin 'elected Russian president'
Vladimir Putin has been elected Russian president for the third time, exit
polls suggest, after spending the last four years as the country's PM.
The exit polls gave Mr Putin about 60% of the vote, meaning that he should
avoid a run-off with his nearest rival, Communist Gennady Zyuganov.
Officials say turnout was higher than for the last election in 2008.
But opposition groups have reported widespread fraud, with many people
voting more than once.
The... 阅读全帖 |
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o******s
发帖数: 2946 | 27 follow-up:
PITTSBURGH (AP) — A man armed with two semiautomatic handguns entered the
lobby of a psychiatric clinic at the University of Pittsburgh on Thursday
and opened fire, killing one person and wounding several others before he
was shot dead, apparently by campus police, the mayor said.
Six people were wounded by the man's gunfire, Mayor Luke Ravenstahl said. A
seventh suffered unspecified injuries but wasn't shot, officials said.
The mayor stopped short of confirming the gunman was fatally... 阅读全帖 |
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B*****f
发帖数: 25 | 28 Wang Lijun is currently being investigated
The police chief at the centre of China's biggest political scandal for
years sought a meeting with UK officials hours before he fled to a nearby US
mission, the BBC has learnt.
Wang Lijun did not show up as arranged at the UK consulate in Chongqing, UK
government sources told the BBC.
Instead he allegedly tried to defect at the US mission in nearby Chengdu.
The events led to the removal from office of his boss, Bo Xilai, one of
China's leading politica... 阅读全帖 |
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I******a
发帖数: 3812 | 29 内线交易，软贪污，游说集团，一次交易就是几百万米。
老将文盲们掩耳盗铃没用。
http://truth-out.org/index.php?option=com_k2&view=item&id=5432:
Are members of Congress corrupt? Perhaps we should define the term. There is
the terrible, "legal" corruption of pay-for-play campaign contributions,
with wealthy donors and big corporations paying to get tax cuts, subsidies,
special laws and "access." This is part of why our government is responsive
to the agenda of the 1 percent and their corporations only.
Even worse, there is the new "Citiz... 阅读全帖 |
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w********s
发帖数: 343 | 30 http://globalnation.inquirer.net/35599/aquino-we-will-fight-for
BATO, Catanduanes—President Benigno Aquino III on Wednesday said the
Philippines would defend its right over Recto Bank, where natural gas was
discovered recently, as he disclosed other gas finds within the country’s
territory.
“We will exercise our rights,” said the President when asked about fears
raised by businessman Manuel Pangilinan involving security at Recto Bank off
Palawan where his company was operating and where China ha... 阅读全帖 |
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YX
发帖数: 21 | 32 说的没错。 车不入险地。对危险估计不足
From: http://www.smartdriving.co.uk/Driving/Driving_emergencies/Floods.htm
Never attempt to drive through a flood that you couldn't walk through and be
aware that water hides dips in the road. Worse still, there may be no road
at all under the water. Flooding can wash away the entire road surface and a
significant amount of ground beneath.
Just six inches of water will reach the bottom of most passenger cars; this
depth can cause loss of control or possible stalling as water ... 阅读全帖 |
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O*******d
发帖数: 20343 | 33 Possession of a Dead Body
It is a well-established principle of law that ‘there is no property in a
corpse.’ This means that the law does not regard a corpse as property
protected by rights. In other words there can be no ‘ownership’ of a dead
body. The only exception is where body parts acquire different attributes by
virtue of the application of skill, e.g. dissection and/or preservation
techniques.
However even if there is no legal ownership certain people have the right to
possess the body. ... 阅读全帖 |
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x****u
发帖数: 12955 | 34
If it's a bomb threat, then land at nearest airport is an absolute priority.
if bomb explode while plane is still in the air, that's most likely all
lives lost. Every minute of delay in landing is potentially hundreds of
people dead. Concern about how to deal with the bomb is a remote second
priority. |
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b********n
发帖数: 38600 | 35 “Now I will tell you the answer to my question. It is this. The Party seeks
power entirely for its own sake. We are not interested in the good of
others; we are interested solely in power, pure power. What pure power means
you will understand presently. We are different from the oligarchies of the
past in that we know what we are doing. All the others, even those who
resembled ourselves, were cowards and hypocrites. The German Nazis and the
Russian Communists came very close to us in their metho... 阅读全帖 |
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s*******l
发帖数: 8210 | 36 这事得从《联合国海洋法公约》说起。联合国海洋公约，United Nations Convention
on the Law of the Sea， 从1958年开始谈判，到1982年谈判完成，前后折腾了25年时
间。谈判完成后，正式批准生效遵守的国家有60个，中国于1996年批准承认并遵守这一
破公约。目前这个公约有到目前有152个国家缔约，但很多与海洋无关，只是签约赚便
宜而已。
美国在张罗忽悠各国签署加入这一公约后，自己却以国会不批准为由，决绝履行这一公
约。原因是美国引用其总统杜鲁门在1945年第二次世界大战结束时宣布的美国领海基线
为大陆架的原则不变。至于这大陆架到底延伸到距离海岸多远的地方，美国从来不说。
《联合国海洋法公约》事实上是海上强权刻意绑架世界各海洋国家让出一条不受每个国
家干预的公海通道的强权公约。这个公约的核心其实有以下几点：
1. 领海限制，LIMITS OF THE TERRITORIAL SEA
Article 3
Breadth of the territorial sea
Every State has the right to establish t... 阅读全帖 |
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c*****g
发帖数: 21627 | 37 没有用的，人家点名要黑裔和西裔：
Community College Students: This Initiative seeks community college partners
to pilot a “mini-mester” program in China designed for community college
students who cannot take a full summer or semester away from home, work, or
school.
HBCU Students: Interested students may wish to contact the Thurgood Marshall
College Fund (www.thurgoodmarshallfund.net) or the United Negro College
Fund (www.uncf.org). Both are working hard to identify and expand
opportunities for minority student... 阅读全帖 |
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m********3
发帖数: 3280 | 38 http://www.washingtonpost.com/blogs/wonkblog/wp/2013/06/10/five
By Timothy B. Lee, Updated: June 10, 2013
If recent reports are to be believed, the National Security Agency has broad
powers to capture private information about Americans. They know who we’re
calling, they have access to our Gmail messages and AOL Instant Messenger
chats, and it’s a safe bet that they have other interception capabilities
that haven’t been publicly disclosed. Indeed, most mainstream
communications technologies are ... 阅读全帖 |
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m**********2
发帖数: 6568 | 40 Advice from PETA
If you see a dog left alone in a hot car, take down the car's color, model,
make, and license plate number. Have the owner paged in the nearest
buildings, or call local humane authorities or police. Have someone keep an
eye on the dog. Don't leave the scene until the situation has been resolved.
If the authorities are unresponsive or too slow and the dog's life appears
to be in imminent danger, find a witness (or several) who will back up your
assessment, take steps to remove th... 阅读全帖 |
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g*q
发帖数: 26623 | 41 In haste, Mr Rajoy's office put out a statement on Wednesday evening which
also conveyed sympathy for the earthquake in the Chinese province of Gansu,
which had happened two days previously.
Mr Rajoy's office said that the prime minister "would like, in the name of
my government and of myself individually, send my sincere condolences to the
families of those who have lost their lives."
But the statement continued: "I wish to convey my sympathy for the loss of
life and the huge material damage th... 阅读全帖 |
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T**********e
发帖数: 29576 | 42 (CNN) – U.S. Senate Majority Leader Harry Reid said on Thursday that one
person was injured in a shooting on Capitol Hill, CNN's Dana Bash reports.
Police are reacting to reports of shots fired on Capitol Hill in Washington.
An order was given over the Capitol speaker system to shelter in place
because of an active shooter situation.
There were reports of multiple gunshots near the Senate Hart Office Building
, and people were seen running.
Capitol Police sent out the following advisory to staff... 阅读全帖 |
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C*******f
发帖数: 13152 | 45 ＬＤ华人上看到的贴，美国人算是没招了，小学数学老师。。。
我们四年级娃老师的数学水平 发贴心情 Post By：10/10/2013 5:52:00 PM
See the following emails:
Teacher's email:
As far as problem number 5, the expectation was for 1 to be subtracted from
623 to show that since we added 1 to 29 to make a ten, we had to subtract 1
from 653. So, the problem should have looked like:
653-29 = ?
Make a ten 29+1= 30
653-30=623
623-1=622
653-29=622
My original email (1st email):
I did notice that there is a grading mistake. I had attached that paper to
thi... 阅读全帖 |
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R*K
发帖数: 310 | 46 MAVEN upon reaching the designated Mars orbit will have only one chance to
enter the the orbit, and if it does not do so, that will be the end. But we
have an additional opportunity. In case we reach on September 24, 2014 and
we are not able to perform the orbit insertion maneuver, we will have
another opportunity after three days of orbiting Mars,” said MoM project
director, M Annadurai.
According to Isro, when a spacecraft reaches the nearest point of Mars (peri
-apsis), it is maneuvered into... 阅读全帖 |
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z***i
发帖数: 9880 | 47 冬天到了美国有些地方污染也很严重了，夏天记得全国没有超过100的。今天一看西雅图
PM2.5 143, Portland163， Newark, NJ 153.全部属于中度污染，相反LA倒还不错：
http://aqicn.org/nearest/ |
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d*********e
发帖数: 1334 | 48 5. How do I apply for Refugee status in the U.S.?
You must go through the following steps to apply for Refugee status:
• If you believe that you are in need of protection, you may
wish to make your concern known to the United Nations High Commissioner for
Refugees (UNHCR) or to an international non profit voluntary agency
• If either of these organizations is unavailable to you, you
should contact the nearest American embassy or consulate
&... 阅读全帖 |
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l*y
发帖数: 21010 | 49 http://www.slate.com/articles/arts/culturebox/2014/01/classical
When it comes to classical music and American culture, the fat lady hasn’t
just sung. Brünnhilde has packed her bags and moved to Boca Raton.
Classical music has been circling the drain for years, of course. There’s
little doubt as to the causes: the fingernail grip of old music in a culture
that venerates the new; new classical music that, in the words of Kingsley
Amis, has about as much chance of public acceptance as pedophilia; f... 阅读全帖 |
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