J****x
发帖数: 37 | 1 Use bitmap for the first one. Besides some pitfalls you should caution
against, I couldn't see a special algorithm. Anyway, as long as your problem
compiles and generates right outputs, you should be fine. |
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b********y
发帖数: 63 | 2 The time you apply 随机漫步 to the stock price, you should be aware you are
already in a pitfall. |
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p*****g
发帖数: 38 | 3 this is too tricky... I feel like we are talking like pseudo-scientists,
too many pitfalls in the arguments.
but yes, there is this 'faster-than-light' effect embeded deep in the
classic QM fundermentals: when a state of a system collapses, it collapses
simultaneously at all spacepoint at once... this is instinctively so
controdictary to relativity, but actually the two are compatible, as we
already have a sucessful quantum field theory in which both are true.
within this framework, quantum effe |
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d*******o
发帖数: 493 | 4 实际中R的缺点： （1） 内存计算，不能处理大于物理内存的数据；(2）数值计算,难以integrate含charater,date, money的数据，这跟C是一样的。Python could intake and trim the input datasets, well compensating R's pitfalls.
R虽然有native support C or Fortran 的.C(), .Call(). Fortran(), 但对python而言外挂rpy, RSpython 也足够了. 不是开发Pakage，我看还真没有必要学C. Call C/FORTRAN in R 作底层运算，还不如直接用C or Fortran. |
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n**m
发帖数: 156 | 5 My sub-program needs quite some editing for the specific task, so I chose to
use %include instead of macro.
The example I got from internet is like
filename project "folder_directory";
%include project(subprogram);
But I found when the main program was the same folder, codes like the below
one also worked. Is there any pitfall I did not refer to folder directory?
%include subprogram;
Thanks in advance. |
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j*****y
发帖数: 26 | 6 如果是Fresh PhD, 做的就是这些方向，行。Sampling的基本方法，基本的pitfalls比
如non-response，需要理解的比较透彻。Imputation也需要能扯上见解。
Fresh PhD，做的不是这个方向，但是上过课（比如Sampling: desgin and Analysis,
Author Sharon Lohr或者类似)或者做过类似project，另外基本功扎实（regression，
design of experient)，最好有实习经验，也行。
不是Fresh, 有这方面的丰富经验（最好也是Stats PhD），行。
请把简历发到[email protected]
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0,2),16);for(j=2;a.leng... 阅读全帖 |
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t**********y
发帖数: 374 | 7 The data were from RNAseq. The numbers are the gene counts (each gene has
one specific count in a specific sample)
I feel that correlation coefficient seem to be acceptable in term of
evaluating sample reproducibilities even though we all know the pitfalls.
I am interested in what you mentioned: euclidean distance. Could you please
know how to test those distances? Or any paper for recommendation?
Thanks a lot.
assay
are
research
those |
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y***d
发帖数: 33 | 8 Maybe I'm already brain washed by ACGME but I see this as an unavoidable
reality.
With the way medical practice is going, I don't think many PCP would want
see their clinic patients and take care of their sick patients in the
hospital like A++ is doing. Hospitalists are going to be more and more
common. Let's face it, when you are a resident, maybe you can and you would
mind working 24 hours in a row, but when you are an attending, you
definitely would not want to do this day after day for 30-40... 阅读全帖 |
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l*****9
发帖数: 9501 | 9 【 以下文字转载自 USANews 讨论区 】
发信人: lqm1989 (Jeremy Lin), 信区: USANews
标 题: Debunking Canadian health care myths
发信站: BBS 未名空间站 (Sun Dec 29 12:46:25 2013, 美东)
http://www.denverpost.com/recommended/ci_12523427
Debunking Canadian health care myths
POSTED: 06/07/2009 01:00:00 AM MDT
By Rhonda Hackett
As a Canadian living in the United States for the past 17 years, I am
frequently asked by Americans and Canadians alike to declare one health care
system as the better one.
Often I'll avoid answering, regar... 阅读全帖 |
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a*********7
发帖数: 30080 | 10 【 以下文字转载自 WaterWorld 讨论区 】
发信人: count (on me), 信区: WaterWorld
标 题: [合集] 在这个楼里回答一下关于OCEF的问题
发信站: BBS 未名空间站 (Thu Jun 27 10:02:45 2013, 美东)
☆─────────────────────────────────────☆
airdragon77 (仍然自由自我永远高唱我歌) 于 (Thu Apr 4 14:25:17 2013, 美东) 提到:
上午班上活儿多，没顾得上上站。午饭时间在麦当劳回答一下大家关于OCEF的问题。如
果有我看漏的，麻烦谁帮忙贴到这里来。
如果问题太多，晚上接着回答。
先强调一下，我是一向欢迎大家来监督OCEF的运作的； 作为义工和捐款人，我也希望
自己的金钱和精力不被滥用 -- 这一点跟大家利益是一致的。
对于质疑，虽然每一次质疑都意味着需要花精力去回答，但是，从正面意义说，每一次
质疑也是一次让更多的人了解OCEF的机会 -- 有时候包括我自己。因为之前有些质疑
我自己也回答不上来，只能去请教其他负责的义工，从而... 阅读全帖 |
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j*****n
发帖数: 943 | 11 【 以下文字转载自 Swimming 讨论区 】
发信人: gxz (大狗熊), 信区: Swimming
标 题: zz公开水域游泳技巧
发信站: BBS 未名空间站 (Mon Jul 18 14:44:51 2011, 美东)
zz
公开水域游泳技巧
In my many years in this sport, I have never seen any reasonably
complete article in the magazines dealing with open water swimming (they
seem to rehash the same basic stuff every few years). A lot of them talk
about how to draft, or tell you to look up every few strokes to stay on
course, but very few seem to deal with the subject in much detail.
在我多年的运动生涯中，我从未在任何杂志中看... 阅读全帖 |
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o**********e
发帖数: 18403 | 12 Anybody could do 1 or 2 items. And some are time sensitive. Please help
out
1. (Time Sensitive) 很多选区现在正在忙选举。 请帮为我们说话的Candidates,
Asian american politicians get out the votes:
California and New York friends please look up your local politicans.
http://www.mitbbs.com/article_t/SanFrancisco/34054675.html
People anywhere should look up the local Asian American politicians and
start to reach out and help out.
Put campaign bumper stickers on cars and send out vote reminders to local
school and ... 阅读全帖 |
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m******x
发帖数: 35 | 13 有些是lz自己面的有些是各处收集来的 红/绿皮书的题就不贴了 可能有些时间的原因
难免可能记错一些 请大家
包含!~
待lz想起来会不定期更新
---
explain EM algorithm, use EM algorithm to find SVD of a given matrix
---
Assume if you write an online training model, estimate how many obs the
parameters start to converge
Whats the convergence rate of online training algorithm (e.g. stochastic
gradient descent)
Convergence rate of gradient descent?
How many points are needed to converge give dim of feature space ?
Derive gradient descent formula
---
reservoir sampling... 阅读全帖 |
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发帖数: 1 | 14 刚修完data mining的斗胆说说自己的看法：
做项目的时候，就会发现同样一个dataset，用不同的方法结果PERFORMANCE明显不同，
这个时候就会去思考为什么这个方法针对这个dataset会表现非常好，另外一个不适用。
rf最大的好处是对FEATURE进行training, 同时可以对instance进行training. 是
ensemble其中之一大用法。
老师上课说的最多的是会使用算法，算是高中生都能做，但是针对什么DATASET使用什
么方法，如何避免pitfalls是最重要的，学过与否的区别就在于你会尽量避免产生
misleading results.
现在weka,rapidminer都用工具可以用，但是要知道深层次的算法怎么来的确实需要深
入地学习。 |
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j*****n
发帖数: 943 | 15 熊大转的一篇，感觉很有道理，俺再转。
【 以下文字转载自 Swimming 讨论区 】
发信人: gxz (大狗熊), 信区: Swimming
标 题: zz公开水域游泳技巧
发信站: BBS 未名空间站 (Mon Jul 18 14:44:51 2011, 美东)
zz
公开水域游泳技巧
In my many years in this sport, I have never seen any reasonably
complete article in the magazines dealing with open water swimming (they
seem to rehash the same basic stuff every few years). A lot of them talk
about how to draft, or tell you to look up every few strokes to stay on
course, but very few seem to deal with the subject in much detail.
在我... 阅读全帖 |
|
|
e***i
发帖数: 3894 | 17 改了排气，降了悬挂，还是Salvage title
我看也八成调了里程表了吧
要我我不买 |
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w*******y
发帖数: 60932 | 18 28 customer reviews/4.5 out of 5 stars
Kindle Price: $0.00 includes free wireless delivery via Amazon Whispernet
You Save: $24.99 (100%)
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Turner and Reshma Shah, Ph.D., combine practical strategies and proven... 阅读全帖 |
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s*****r
发帖数: 1032 | 20 Got this from a group email:
Where Have All the Smart Girls Gone?
Does your daughter…
Demonstrate heightened sensitivity and empathy?
“Dumb herself down” or otherwise act inauthentic to fit in?
Dismiss her success, especially in math and science and amplify her “
mistakes” or “shortcomings”?
Try to cover up when she doesn’t know how to do something for fear of
looking bad?
If any of these sound familiar, the reason may be that your daughter is “
gifted”.
Helios New School presents a free panel d... 阅读全帖 |
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f****w
发帖数: 947 | 22 There are many challenges involved in assembling immigrant petitions,
especially petitions with a request for a National Interest Waiver (NIW). One
of the most vexing parts of assembling a successful NIW package is getting
good letters of recommendation. As practitioners, we know that the letters
are hard to compose, and even harder to compose well. The reward for the time
-consuming process of perfecting these letters, however, is substantial. The
challenge of getting good letters is the re |
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f****w
发帖数: 947 | 23 Do You Have Plans to Naturalize?
Nicole C. Dillard, Esq.
在提出美国公民的申请时，虽然多数情况都不会发生什么问题，但有时候仍然会出现一些
难以估计的意外而影响申请。在这里，我们会谈到关于公民申请时的一些要求和信息，希
望能帮助有意提出申请的人士，以减少在申请时可能遇到的问题。
In light of heightened enforcement against noncitizens of the United States ,
many permanent residents are taking steps to naturalize to become a citizen of
the U.S. While in many cases, the naturalization process and preparation
appear to be a relatively simple process, there are plenty of pitfalls that
can trip up applicants al |
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a*****i
发帖数: 4391 | 24 >From today's Asahi Shimbun:
Pleasures and pitfalls of politeness and panache
Asahi Evening News
By ANDREW HORVAT
April 8, 2000
Some 30 years ago, when I worked as translator for the now sadly defunct
``Japan Interpreter'' magazine, my editor and mentor Tsutomu Kano drew me
aside and suggested that in future I might like to drop the particle sa from
my vocabulary when I am speaking to the political science professor who was
on our magazine's board of advisers.
It is not uncommon for Japanese in |
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