Derivatives of Regular Expressions

http://lambda-the-ultimate.org/node/2293/

by fogus • 16 years ago

35 9 16 years ago

llimllib2• 16 years ago

All of the links to the paper in the comments are bitrotted; here's one that works http://lcs.ios.ac.cn/~chm/papers/derivative-tr200910.pdf .

Screw the ACM for paywalling this and many, many other papers.

randomwalker• 16 years ago

This is a different paper. Did you even glance at the author name? It is from 2010 whereas the paper the article is talking about is from 1964.

turbofail• 16 years ago

Google to the rescue!

http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=A0F...

llimllib2• 16 years ago

my bad. Nope, I went to reading the abstract and skipped the author's name. Stupid.

michael_dorfman2• 16 years ago

The ACM has a moral imperative to create and edit journals and make them freely available on the web?

I'm a member of the ACM, and I every year I gladly pay a few hundred measly bucks to have access to their archives. I see no reason to begrudge them their business model.

prodigal_erik• 16 years ago

By demanding copyright assignment and then paywalling, they are directly reducing the social utility of this research work by drastically limiting its audience. They have even threatened web authors for merely linking to copies which belonged to the authors rather than themselves: http://realtimecollisiondetection.net/blog/?p=101

alextp2• 16 years ago

I refuse to be a member of the ACM for this very reason---I don't think people should be expected to pay a few hundred bucks a year to access scientific papers. I think the ACM does more to obstruct progress in CS than to advance it, in general, due to policies like this.

When I had a free student membership due to participating in a programming contest I found out that I couldn't read almost any paper I wanted without also subscribing to some SIG. Some of my professors have also expressed frustration when trying to dowload papers from ACML DL even though they've been members for decades.

Derivatives of Regular Expressions

Related Stories