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新しいウェブページ評価システムのご提案 (recompile.net)
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Stopping spambots with hashes and honeypots
Created 21 January 2007 Spam sucks. Any site which allows unauthenticated users to submit forms will have a problem with spamming software (spambots) submitting junk content. A common technique to prevent spambots is CAPTCHA, which requires people to perform a task (usually noisy text recognition) that would be extremely difficult to do with software. But CAPTCHAs annoy users, and are becoming mor
Haskell - IMHO
The true delight is in the finding out rather than in the knowing. -- Isaac Asimov Danger! If you are happy with your current knowledge of programming languages, don’t read on – Haskell might be responsible for some serious defects in your motivation. I was always some kind of programming language geek. I loved learning and playing around with all kinds of programming languages1. Currently I’m try
FC++: The Functional C++ Library
New! FC++, the academic project, is now the basis for FC++, the public open source project. See FC++ on Sourceforge! FC++: Functional Programming in C++ Higher-Order Polymorphic Functions in the C++ Language FC++ is a library for functional programming in C++. Functional programming is a programming paradigm in which functions are treated as regular values. Thus, we can have functions that take
Type Checking with Open Type Functions (PDF)
UNSW Engineering Fearless thinking. World changing action.
The End of MySpace » David Louis Edelman
Ziff-Davis’ Baseline recently published an insider’s look at how MySpace functions on a technical level, and it’s quite revealing. The common assumption among programming types about MySpace is that the system started off as somebody’s pet project and quickly mushroomed beyond the programmers’ control. Rather than cooling off growth to create a better infrastructure, the MySpace folks opted for gr
Ideology - Polyglot
Compile and run with your favorite compiler and operating system. Notes: We have attempted to use only standard language features. Without the -traditional flag, gcc will issue a warning. When transfering from Linux/Unix to MS-DOS/Windows make sure that a LF is correctly translated into a CR/LF. Keep the blank lines at the start of the program. They are important. 10th Anniversary Edition Polyglot
Syntax Extensibility, Ruby Metaprogramming and Lisp Macros
A programmer's blog - will deal with everything that relates to a programmer. Occasionally, it will contain some humour, some politics and some sport news. Over the last few days I have been feeling a bit Lispy. It's not that I have been immersed in Lisp programming, I still do Java for my day job and enjoy the process of staring at reams of standard object oriented api calls and the big gigantic
Inside MySpace: The Story
Booming traffic demands put a constant stress on the social network’s computing infrastructure. Yet, MySpace developers have repeatedly redesigned the Web site software, database and storage systems in an attempt to keep pace with exploding growth – the site now handles almost 40 billion page views a month. Most corporate Web sites will never have to bear more than a small fraction of the traffic
JRuby Byte Code Compiler Outperforming Ruby C
Re: JRuby Byte Code Compiler Outperforming Ruby C This is a good start, but they should be comparing their performance against a more formidable language implementation. If you look at the n-body benchmark of the language shootout for instance, you'll see Ruby comes dead last. It really isn't the language to use unless your program spends 99% of its time calling into C. 2 . At 2:50 PM on Jan 24, 2
Free Math Texts and more, from Jim Hefferon
Hello! I'm Jim Hefferon, from the University of Vermont Department of Mathematics and Statistics. This is where I keep stuff related to Mathematics, including the undergraduate texts that I have written, along with ancillaries such as answers to exercises and classroom slides. Also here are things for computing, cello, jogging, and ham radio. The material here is all Freely available. The LaTeX so
ACM SIGACT
ACM Special Interest Group on Algorithms and Computation Theory About SIGACT SIGACT is an international organization that fosters and promotes the discovery and dissemination of high quality research in theoretical computer science (TCS), the formal analysis of efficient computation and computational processes. SIGACT, through its awards program, recognizes individuals who have made significant co
池田信夫のクルーグマン理解について - 数学猫の生活と意見
ケインズ反革命の終わり - 池田信夫 blog私は経済の専門家ではないが、復活だぁっ！ 日本の不況と流動性トラップの逆襲を読めばわかるように、クルーグマンの議論のポイントは「短期の金融政策は無効」だけど「長期の金融政策は有効」というものだ。短期的には流動性の罠に落ち込んでいるので、マネタリーベースを増やしてもインフレは起きない。しかし、長期的(流動性の罠から脱却して資本市場が均衡したあと)にもマネタリーベースを増やすことを約束すれば、流動性の罠から逃れられるというのが彼の主張だ。だから、なるほどおっしゃる通りだが、クルーグマン自身の過去の議論との整合性はどうなるのだろうか。彼は1998年の日本経済についてのエッセイで、日銀がインフレ目標を設定して通貨をジャブジャブに供給すればデフレを脱却できると主張した。という不整合は生じないし、(クルーグマンはあくまで短期の金融政策の有効性を否定しただけ
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https://www.omninerd.com/2007/01/23/articles/66
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