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2009-06-17 10:48
看到下面这篇文章,大名鼎鼎的Leslie Lamport写的。Lamport现在微软做并行分布式系统方面的理论研究。据说是一愤老头。还有传言说他因为太傲,拿不了图灵奖。

Should Your Specification Language Be Typed? (with Larry Paulson)
ACM Transactions on Programming Languages and Systems 21, 3 (May 1999) 502-526. Also appeared as SRC Research Report 147.


下面一段话更有趣,哈哈

In 1995, I wrote a diatribe titled Types Considered Harmful. It argued that, although types are good for programming languages, they are a bad way to formalize mathematics. This implies that they are bad for specification and verification, which should be mathematics rather than programming. My note apparently provoked some discussion, mostly disagreeing with it. I thought it might be fun to promote a wider discussion by publishing it, and TOPLAS was, for me, the obvious place. Andrew Appel, the editor-in-chief at the time, was favorably disposed to the idea, so I submitted it. Some of my arguments were not terribly sound, since I know almost nothing about type theory. The referees were suitably harsh, but Appel felt it would still be a good idea to publish a revised version along with rebuttals. I suggested that it would be better if I and the referees cooperated on a single balanced article presenting both sides of the issue. The two referees agreed to shed their anonymity and participate. Larry Paulson was one of the referees. It soon became apparent that Paulson and I could not work with the other referee, who was rabidly pro-types. (At one point, he likened his situation to someone being asked by a neo-Nazi to put his name on a "balanced" paper on racism.) So, Paulson and I wrote the paper by ourselves. We expected that the other referee would write a rebuttal, but he apparently never did.
类别:Theory | 评论(1) | 浏览()
 
2009-05-15 21:47
一个启动工具栏,Appetizer,挺不错的,虽然可以在不同的桌面上跑多个实例,但是却不能注册同一个快捷键,真是矛盾啊。
类别:Software | 评论(0) | 浏览()
 
2009-04-13 12:49
google 技术讲座:

Advanced topics in programming languages: Parametric Polymorphism and the Girard-Reynolds Isomorphism

Phil Gossett
2007-4-18
http://video.google.com/videoplay?docid=-4851250372422374791

[内容简介]
一个介绍性质的talk,简单易懂。从hindler-milner type inference讲到 parametericity,重点讲code inference from type signatures,提到了一个工具,Djinn by Lennart AugustssonPhilip Wadler 指出了talk中的两处错误
类别:默认分类 | 评论(0) | 浏览()
 
2009-04-02 17:02
确实不能再忽视git了,git已经成为最炙手可热的代码管理软件(SCM)。
以往都是bzr+svn来管理代码。最近试了试git,使用一段时间看看效果。

这里找到一篇针对svn用户的很好的git上手文章

Git - SVN Crash Course
       http://git.or.cz/course/svn.html
类别:Misc | 评论(0) | 浏览()
 
2009-03-13 15:08
http://www.andrew.cmu.edu/user/avigad/

貌似不少好东东啊。

”abstract vs. concrete,
  • finitary vs. infinitary,
  • set-theoretic vs. constructive,
  • conceptual vs. computational,
  • structural vs. combinatorial, or
  • predicative vs. impredicative.
These tensions still survive and shape mathematics today, and I am particularly interested in understanding how the subject balances and reconciles the various methodological orientations. “
类别:Theory | 评论(0) | 浏览()
 
2009-03-03 16:40
abstract :
在debian下编译安装模块非常简单,使用module-assistant这个工具,交互式界面。

background:
我的工作环境是网络服务器+本机wmware player上跑的debian。由于wmware中的时间可能与外界服务器不同步,导致版本控制工具不能正常使用。wmware player没有带wmware tools只能安装open-vm,这个需要在内核中安装一个模块。只要几步就能完成,前提是系统中装上build-essential,module与open-vm-source包。

details:
#apt-get install open-vm-source
#m-a a-i open-vm

references:
[1].http://www.debianadmin.com/install-open-vm-tools-on-debian-40-etch.html
[2].open-vm随机文档
类别:Software | 评论(0) | 浏览()
 
2008-08-28 10:38
emacs 22:
C-\ 切换中文输入法
类别:备忘 | 评论(2) | 浏览()
 
2008-07-09 16:41
debian中的elisp manual挪到了emacs22-common-non-dfsg包中,原因是文档许可的变化。

Description: GNU Emacs shared, architecture independent, non-DFSG items
GNU Emacs is the extensible self-documenting text editor. This
package contains the architecture independent infrastructure that is
not compliant with the Debian Free Software Guidelines. In
particular, this includes some of the GNU Emacs info pages, as they
are covered under the GFDL, and they specify invariant sections.
See http://www.debian.org/vote/2006/vote_001 for more information.

而在Ubuntu里面,elisp manual还是在emacs22-common中。
类别:Software | 评论(0) | 浏览()
 
2008-06-21 11:30
论点:中国人分不清正确与谬误,我们只知道谁谁道德不道德。道德高尚的人好比是上帝,喉咙里发出的每一个音节都是真理;而可能有所目的的“小人”无论如何都不可能是正确的。

论据:
(1)韩寒、陈丹青炮轰所谓“文学大师”
(2)方舟子论地震的不可预测性
类别:无聊灌水 | 评论(1) | 浏览()
 
2008-06-16 19:34
忙里偷闲看了看湖南卫视的“零点锋云”,类似谈话节目,但是节目内容明显要比央视的"面对面","艺术人生"之类的访谈节目高上不止一个档次。

“面对面”像一篇榨干的柠檬,你指望里面还会流出点什么,但是每次都让你失望。

“艺术人生”呢,就像一个烂黄瓜,它只会越来越烂。。。
类别:无聊灌水 | 评论(0) | 浏览()
 
     
 
 
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可惜我有两套来着,搬家次数太多都找不到了。
 

我想买你的Foundations for Programming Languages这本书。QQ66500371
 
 

博士,怎么这么愤青啊,呵呵
 
     


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