c********1
发帖数: 5269 | 1 10th percentile: $9.35
20th percentile: $10.91
30th percentile: $12.91
40th percentile: $15.03
50th percentile: $17.86
60th percentile: $21.00
70th percentile: $25.08
80th percentile: $31.89
90th percentile: $43.86
95th percentile: $57.86 |
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g***l
发帖数: 3142 | 3 Dear alumni and friends,
Peking University Alumni Association of Greater New York (PKUAAGNY) will
host Conference 2009 on Saturday, May 2 at Rockefeller University in Mi
dtown Manhattan to celebrate the 111th Anniversary of Peking University
and the 90th Anniversary of the May 4th Movement.
During Conference 2009 our alumni and friends will have a great opportun
ity to gather together and discuss key social and economic development i
ssues of the day, showcase our accomplishments, and help our a |
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i******7
发帖数: 421 | 4 SQL 2008
有这样一个table:
phonenum calltime rowID
1 2/4/2010 1
4 2/8/2010 2
2 6/18/2010 3
2 6/20/2010 5
3 8/20/2010 6
4 2/9/2010 7
4 2/11/2010
… … …
我现在要做一个report,就是显示每个phonenum每天收到多少个call,只需要显示前90天
.比如phone1的第一个call是2/4.从那天开始的往后90天,每天收到多少个call.phone4
的第一个call是2/8.那么分别是day1有一个call, day2有一个call,day4有一个call.
具体report的格式如下.
phonenum 1st day 2nd day 3rd day 4th day … 90th day
1 1
2 1 1
3 ... 阅读全帖 |
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e***y
发帖数: 4472 | 5 Google Chrome Terms of Service
These Terms of Service apply to the executable code version of Google Chrome
. Source code for Google Chrome is available free of charge under open
source software license agreements at http://code.google.com/chromium/terms.html.
1. Your relationship with Google
1.1 Your use of Google’s products, software, services and web sites (
referred to collectively as the “Services” in this document and excluding
any services provided to you by Google under a separate writte... 阅读全帖 |
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n*******3
发帖数: 105 | 6 和产品关系比较大。我们就是个不到100人的STARTUP。
作广告平台的公司通常对算法要求比较高，因为他那个数据量太大，对响应延迟的要求
也很苛刻。前两年比较闲的时候帮朋友的一个作广告平台的STARTUP搞个一个USER
PROFILE的STORAGE ENGINE。公司很小，几十号人，但业务量大。光这个UPSE存储就超
过500M的用户记录，一秒钟访问请求十几万，90TH PERCENTILE必须小于1毫秒。类似这
类程序对算法要求就很高，当时断断续续花了大半年才搞定。 |
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c****e
发帖数: 1453 | 7 1毫秒, 开玩笑吧？怎么measure的? network latency很容易到10-30ms.而且你一秒十
几万请求，就是全部in memory, 也是不少机器的partition.光从Load balancer过来要
多长时间。
90th percentile和50th, 75th不一样，主要的难度在于tail case.需要一些duplidate
request 或者tail retry的特殊处理。和经验的关系更大一些。
你们这个系统是redis上套了一层吗？ |
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f********n
发帖数: 6465 | 8 发信人: sorcin (退一步海阔天空), 信区: Biology
标 题: Re: Re: 决心 退了，大家别留我吧！！
发信站: BBS 未名空间站 (Fri Sep 7 23:39:42 2007)
学了牙医.
我知道肯定还有人好奇我现在工资几何. 干脆一并说了吧,
salary.com, 输入dentist, 02114, 这是查询结果
Percentile
10th 25th 75th 90th
Boston, MA 02114
7,042 6,176 7,361 4,830
现正准备自己单干开诊所. 至于单干之后能挣多少就不好说了. 有的挣得多有挣得少. |
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f********n
发帖数: 6465 | 9 发信人: sorcin (退一步海阔天空), 信区: Biology
标 题: Re: Re: 决心 退了，大家别留我吧！！
发信站: BBS 未名空间站 (Fri Sep 7 23:39:42 2007)
学了牙医.
我知道肯定还有人好奇我现在工资几何. 干脆一并说了吧,
salary.com, 输入dentist, 02114, 这是查询结果
Percentile
10th 25th 75th 90th
Boston, MA 02114
7,042 6,176 7,361 4,830
现正准备自己单干开诊所. 至于单干之后能挣多少就不好说了. 有的挣得多有挣得少. |
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L******e
发帖数: 679 | 10 http://www1.salary.com/Medical-Technologist-salary.html
Medical Technologist (ASCP) - U.S. National Averages Base pay only
10th%: $48,962
25th%: $53,349
75th% :$63,729
90th% : $68,711
Is there anybody worked as an MT could explain a little bit here? I was very
interested in MT. What i learned:
1, One of my graduate student colleague (6 years ago) said his salary is
about $38,000/year. He worked two years in the clincal lab after graduated
from college.
2, Years ago, A MT supervisor came to ou... 阅读全帖 |
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f********n
发帖数: 6465 | 11 http://www.mitbbs.com/article_t1/Biology/31377593_0_1.html
楼主去学牙医比较靠谱哦.
发信人: sorcin (退一步海阔天空), 信区: Biology
标 题: Re: 决心 退了，大家别留我吧！！
发信站: BBS 未名空间站 (Fri Sep 7 23:19:31 2007)
退吧,早退早超生.
为了让你感觉好一点, 告诉你我的情况吧, 我是国内P大毕业, 美国TOP10的学校PHD毕
业, 然后在Boston H大做了3年Postdoc, 2年Instructor, 发了21篇5~6分的文章(一作
16篇), 得过
两个小GRANTS, 若干学会的New Investigator awards. 最后还是找不到Faculty位置,
咬咬牙也就退了.
学了牙医.
我知道肯定还有人好奇我现在工资几何. 干脆一并说了吧,
salary.com, 输入dentist, 02114, 这是查询结果
Percentile
10th 25th 75th 90th
Boston, MA 02114
7,042 6,176 7,361 ... 阅读全帖 |
|
f********n
发帖数: 6465 | 12 发信人: sorcin (退一步海阔天空), 信区: Biology
标 题: Re: 决心 退了，大家别留我吧！！
发信站: BBS 未名空间站 (Fri Sep 7 23:19:31 2007)
退吧,早退早超生.
为了让你感觉好一点, 告诉你我的情况吧, 我是国内P大毕业, 美国TOP10的学校PHD毕
业, 然后在Boston H大做了3年Postdoc, 2年Instructor, 发了21篇5~6分的文章(一作
16篇), 得过
两个小GRANTS, 若干学会的New Investigator awards. 最后还是找不到Faculty位置,
咬咬牙也就退了. 现在找Faculty位置, 得满足以下要求中的至少两个,
1. CNS 一作文章至少一篇, 10分左右文章若干,
2. 有R01或至少K grant,
3. 老板是大牛,
另外, 即使你拿到了AP位置, 在随后的3-5年内, 你还必须靠你自己发几篇好文章, 然
后一定得拿到一个R01, 否则,5年之后你还是拿不到甜妞, 还得卷包走人. 我老板, 还
有隔壁实验室的另一个老板, 以及另一个系的3个年青老板, 就是因为... 阅读全帖 |
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a*******t
发帖数: 414 | 13 有两个变量，x1和x2
我用pctile可以求出他们的weighted mean，weighted 90th value， weighted 95th
value， weighted 97.5th value，以及相应的unweighted value。我的问题是最后如
何用stata把所有的结果放在一个表里，或者放在两个表里也可以。因为以前没学过
stata，网上搜了半天也找不到相应的stata命令，希望大家帮助！ |
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a*******t
发帖数: 414 | 14 有两个变量，x1和x2
我用pctile可以求出他们的weighted mean，weighted 90th value， weighted 95th
value， weighted 97.5th value，以及相应的unweighted value。我的问题是最后如
何用stata把所有的结果放在一个表里，或者放在两个表里也可以。因为以前没学过
stata，网上搜了半天也找不到相应的stata命令，希望大家帮助！ |
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v*******y
发帖数: 5530 | 15 lz说的是一般大学的金融博士，25w刀已经是90th percentile了好不好
去花街的多了去了，你要不信去看看Columbia的finance PhD placement把
只不过这两年经济不好，很多人又回来academic找工作而已 |
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v*******y
发帖数: 5530 | 16 lz说的是一般大学的金融博士，25w刀已经是90th percentile了好不好
去花街的多了去了，你要不信去看看Columbia的finance PhD placement把
只不过这两年经济不好，很多人又回来academic找工作而已 |
|
o****p
发帖数: 162 | 17 相当可观!
Risk Analyst III - Houston, TX
(4-6 years of experience in the field or in a related area)
Base: avg. ~ 75k
10th% 25th% 75th% 90th%
$58,034 $66,033 $85,921 $96,030
+ X% Bonus |
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a***n
发帖数: 423 | 18 经常有人问，考CFA对于找Quant工作有没有帮助。大家可以讨论一下。我这里抛砖引玉
：直接帮助可能不是太大，因为1,这不是quant的资格考试；2，拿到CFA charter 需
要通过3个考试，4年工作经验，以及CFA charter holder的recommendation。间接帮助还是有的，如果你没有finance的基础，考试之后,对于这个
行业能有更深的了解，毕竟level 1相当于四年本科的内容。
这里有两组统计数据：
1，compensation: Average compensation for CFA charterholders located in the
U.S. was reported as $184,000 in base salary, and $304,000 in total
compensation, based on 2001 survey data. Total compensation rises to $384,
000 for charterholders with 10 years experience, and compensati... 阅读全帖 |
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o******6
发帖数: 538 | 19 ☆─────────────────────────────────────☆
sjboy (beetle) 于 (Sun Mar 1 16:58:30 2009) 提到:
hi, would like someone help on this problem.
A charity receives 2025 contributions. Contributions are assumed to be
independent and identically distribute with mean 3125 and standard deviation
250. Calculate the approximate 90th percentile for the distributio of the
total contributions received.
(A) 6,328,000
(B) 6,338,000
(C) 6,343,000
(D) 6,784,000
(E) 6,977,000
☆─────────────────────────────────────☆ |
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i******n
发帖数: 839 | 20 Found a good review instead of any download link:
Summary: The truth about this book. 99% of other great reviews are bogus.
Rating: 2
This book was not written for students. It was written so that the author
can gain respect from his from his academic peers. The explanations are
absolutely horrible. It purposely explains simple concepts in overly verbose
, complicated ways. The idea is to make the subject appear as complicated as
possible when it doesn't need to be. It reads like those academic ... 阅读全帖 |
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s*****1
发帖数: 9 | 21 You may consider using quantiles. If one score is over the 90th percentile (
or any critical value of your choice), it is very good. |
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t*******t
发帖数: 301 | 22 Surgical robotics
in industry: well known intuitive Surgical, Inc.
in academy: groups in JHU and stanford have many active research on this.
DARPA started a project for autonomous surgery for battle field
Computational Neuroscience
in industry: google, amazon and others are doing individual advertising
in academy: cognition group in MIT and others contributed hugely to computer
vision in 80th and machine learning and AI in 90th and now
quota from the current female MIT president "We only know 10 |
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s****p
发帖数: 1087 | 23 抽了一组数据来看
Pediatrics: General:
Mean $211,575 Std. Dev. $84.320 Median $192.000
25th %tile: $151.817
50th %tile: $192.000
75th %tile: $255.632
90th %tile: $325.307
发现std. dev.还是蛮大的。
刚出来的医生多久期望自己能达到median？有时候也和乡村城市有关吧。 |
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s****p
发帖数: 1087 | 24 抽了一组数据来看
Pediatrics: General:
Mean $211,575 Std. Dev. $84.320 Median $192.000
25th %tile: $151.817
50th %tile: $192.000
75th %tile: $255.632
90th %tile: $325.307
发现std. dev.还是蛮大的。
刚出来的医生多久期望自己能达到median？有时候也和乡村城市有关吧。 |
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c**i
发帖数: 6973 | 25 A biologist by training who came from Taiwan, I have lived in US for more
than a quarter century, mostly at Boston, Massachusetts. I am familiar with
medical field in Taiwan and biological field in US, somewhat with medical
and legal fields in US.
We have no idea what you describe yourself is true or not. As they say, "On
the Internet, nobody knows you're a dog."
http://en.wikipedia.org/wiki
/On_the_Internet,_nobody_knows_you%27re_a_dog
Yet, why do I go through all the troubles to point out your... 阅读全帖 |
|
c**i
发帖数: 6973 | 26 A biologist by training who came from Taiwan, I have lived in US for more
than a quarter century, mostly at Boston, Massachusetts. I am familiar with
medical field in Taiwan and biological field in US, somewhat with medical
and legal fields in US.
We have no idea what you describe yourself is true or not. As they say, "On
the Internet, nobody knows you're a dog."
http://en.wikipedia.org/wiki
/On_the_Internet,_nobody_knows_you%27re_a_dog
Yet, why do I go through all the troubles to point out your... 阅读全帖 |
|
