p*e
2 楼
本人乃postdoc on J1 visa, 想找公司帮我延续我的 J1 visa, 有可能吗?
f*n
3 楼
跳舞的music, 越多越好 - 不是中国式节奏很强的那种。
I*l
4 楼
上次忘了说了,old了别peng
第一则:
如果你upgrade到leopard后.x11变得不好用了,表现是
1. 启动x11后dock上有两个x11图标
2. 启动没有load .Xdefaults 的字体啊背景啊等等设置
3. 鼠标emulate不好
那么你应该 update 到x11的 development release
在这里下载
http://trac.macosforge.org/projects/xquartz
第二则
如果你的carbon emacs 坏了
出了Fatal malloc_jumpstart() error
你的emacs是不是通过fink装上去的? 把它删了吧
系统自带的就可以用了
鼠年快乐~~~
第一则:
如果你upgrade到leopard后.x11变得不好用了,表现是
1. 启动x11后dock上有两个x11图标
2. 启动没有load .Xdefaults 的字体啊背景啊等等设置
3. 鼠标emulate不好
那么你应该 update 到x11的 development release
在这里下载
http://trac.macosforge.org/projects/xquartz
第二则
如果你的carbon emacs 坏了
出了Fatal malloc_jumpstart() error
你的emacs是不是通过fink装上去的? 把它删了吧
系统自带的就可以用了
鼠年快乐~~~
a*t
5 楼
i just found my msconfig do not have boot section today, never happen before.
restart system, still not work. norton endpoint checked the whole system, no
virus.
download a new msconfig to cover original one, still not work.
anyone has similar experience? how to restore it? thanks a bunch.
restart system, still not work. norton endpoint checked the whole system, no
virus.
download a new msconfig to cover original one, still not work.
anyone has similar experience? how to restore it? thanks a bunch.
s*c
6 楼
我想去美国留学 比较了很多学校后 决定选择俄亥俄州立大学(COLUMBUS) 大家觉得这
个学校怎么样?
个学校怎么样?
k*a
7 楼
代码和数值结果同时管理的话什么软件或者解决方案会比较好?
现在用svn来管理代码,不过有大量的计算结果管理起来很麻烦,而且通常两个是相对
应的
现在用svn来管理代码,不过有大量的计算结果管理起来很麻烦,而且通常两个是相对
应的
f*n
8 楼
Typical discrete choice model works on data with complete set of choice.
In some cases, information on the choice set from which choices are made may
be missing or incomplete, and the sample may lack data on some of the
alternatives. In an extreme case, data may be only available for one subset
of the alternatives, as when a firm keeps files on only its own customers.
For such data it would appear to be impossible to estimate a choice model.
Is this true?
In some cases, information on the choice set from which choices are made may
be missing or incomplete, and the sample may lack data on some of the
alternatives. In an extreme case, data may be only available for one subset
of the alternatives, as when a firm keeps files on only its own customers.
For such data it would appear to be impossible to estimate a choice model.
Is this true?
n*g
9 楼
南加州?
d*y
11 楼
看橄榄球可以扬眉吐气了
恭喜,ppmm也很多
恭喜,ppmm也很多
j*x
12 楼
这个才是应该好好讨论的话题。以前我用mercurial管code,计算结果大的话,压成
tarball放在学校的long term storage,一般学校的话有专门的data storage
facility,那些tape的robot什么的。
tarball放在学校的long term storage,一般学校的话有专门的data storage
facility,那些tape的robot什么的。
w*g
13 楼
see BLP first. nothing new...
N*l
14 楼
San Francisco
c*r
15 楼
SCM, I am using Git.
l*o
16 楼
不是还有其他的generalized linear model可以适合lz说的这种情况吗?cencored /
tranucated regression很常见啊。
tranucated regression很常见啊。
c*r
17 楼
1. SCM is not backup..dude.
2. store your important data seperately in stable machines.
3. add some handy commands in your makefile, such as clean, dist, backupdata.
2. store your important data seperately in stable machines.
3. add some handy commands in your makefile, such as clean, dist, backupdata.
h*i
18 楼
not really need go to BLP
you can use aggregation model to model this kind of data, but the
aggregation bias will not be easily handled.
aggregation means group those elementary alternatives, you need some
aggregate information.
I don't think BLP will get rid of the problem caused by missing
information.
choice.
made may
subset
customers.
model.
【在 f**n 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: Typical discrete choice model works on data with complete set of choice.
: In some cases, information on the choice set from which choices are made may
: be missing or incomplete, and the sample may lack data on some of the
: alternatives. In an extreme case, data may be only available for one subset
: of the alternatives, as when a firm keeps files on only its own customers.
: For such data it would appear to be impossible to estimate a choice model.
: Is this true?
you can use aggregation model to model this kind of data, but the
aggregation bias will not be easily handled.
aggregation means group those elementary alternatives, you need some
aggregate information.
I don't think BLP will get rid of the problem caused by missing
information.
choice.
made may
subset
customers.
model.
【在 f**n 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: Typical discrete choice model works on data with complete set of choice.
: In some cases, information on the choice set from which choices are made may
: be missing or incomplete, and the sample may lack data on some of the
: alternatives. In an extreme case, data may be only available for one subset
: of the alternatives, as when a firm keeps files on only its own customers.
: For such data it would appear to be impossible to estimate a choice model.
: Is this true?
D*r
20 楼
code需要svn管理 计算产生的data只是存储 需要有管理的概念吗?
相关阅读
Veblen: The Socialist Economics of Karl Marx and His Follow拆迁的经济学分析这篇文章讲到了统计数据的问题,还挺详细。傲视群雄:令人惊奇的犹太人经济学家谢国忠:泡沫难驯请教关于absolute risk aversion中国的投资回报率并不低复旦大学管理学院欢迎海外人才(非官方版) (转载)海外经济学博士回国的行情和心得斯蒂格里茨 :中国是否在欺骗?(黄海莉译)再见推荐一个经济,金融,管理类书籍课件及相关软件下载的网站斯蒂格利茨PK林毅夫:经济学理论无国界进化博弈理论能否用于基因表达数据分析?Job openings in the School of Economics, Shanghai University of Finance and Economics中国金融风暴蠢蠢欲动Freak Freakeconomics这方面研究属于labor Econ的,还是hr个人合作建房:一束渐渐逝去的温馨烛光又乱想了个东西。大家看看呢。