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New
The latest blog posts to take off on Hacker News. 14,544 posts.
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Netflix Update: Try This at Home
Ok, so here's where I tell all about how I (now we) got to be tied for third place on the netflix prize . And I don't mean a sordid tale of computing in the jungle, but rather the actual math and methods. So yes, after reading this post, you too should be able to rank in the top ten or so.
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Top Down Operator Precedence
Vaughan Pratt presented "Top Down Operator Precedence" at the first annual Principles of Programming Languages Symposium in Boston in 1973. In the paper Pratt described a parsing technique that combines the best properties of Recursive Descent and Floyd 's Operator Precedence. It is easy to use. It feels a lot like…
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The Tao Of Programming
Last substantive modification 1996-04-10 or earlier; Kragen link updated 2016-11-30
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the Lemacs/FSFmacs schism
In 1991, I was working at Lucid Inc., and our newest product, Energize, was an integrated development environment for C and C++ on Unix. The design of this development environment involved very tight integration between the various tools: compilers, linkers, debuggers, graphers, and editors. So of course we needed a…
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Code's Worst Enemy
If you could snap your fingers and bring Perl 6 on Parrot's implementation up to the level of Rhino's, would you still choose JavaScript?
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Objects Have Not Failed
Here is some practical evidence: According to the most recent 2002 North American Developer Survey by Evans Data Corporation, over half the developers surveyed are using Java. About 1/7 of developers surveyed are using C#. Roughly half of those also use Java, so the fraction of surveyed developers using one or both is…
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Bell Labs and CSP Threads
This page is a slice of the history of concurrent programming, focusing on one particular lineage of Hoare's language of communicating sequential processes (CSP) [1] [1a] . Concurrent programming in this style is interesting for reasons not of efficiency but of clarity. That is, it is a widespread mistake to think…
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Zero to Riding the Rails in Four Months
Whew! four months of nose-to-the-keyboard development work, and we launched our new product! Because it was the first time we designed, developed, and deployed a complete web application with our n…
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hacker
1. A person who enjoys exploring the details of programmable systems and how to stretch their capabilities, as opposed to most users, who prefer to learn only the minimum necessary. RFC1392, the Internet Users' Glossary , usefully amplifies this as: A person who delights in having an intimate understanding of the…
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JavaScript: The World's Most Misunderstood Programming Language
JavaScript , aka Mocha, aka LiveScript, aka JScript, aka ECMAScript, is one of the world's most popular programming languages. Virtually every personal computer in the world has at least one JavaScript interpreter installed on it and in active use. JavaScript's popularity is due entirely to its role as the scripting…
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Revenge of the Nerds
May 2002 "We were after the C++ programmers. We managed to drag a lot of them about halfway to Lisp." - Guy Steele, co-author of the Java spec In the software business there is an ongoing struggle between the pointy-headed academics, and another equally formidable force, the pointy-haired bosses. Everyone knows who…
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T Project
It occurred to me recently that The T Project had no coherent presence on the web. There's Olin's history , but I thought something a bit more calm and dignified is in order.
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A Plan for Spam
August 2002 (This article describes the spam-filtering techniques used in the spamproof web-based mail reader we built to exercise Arc . An improved algorithm is described in Better Bayesian Filtering .) I think it's possible to stop spam, and that content-based filters are the way to do it. The Achilles heel of the…
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Groupware Bad
This piece has gotten a lot of attention over the years. I have heard a lot of people saying that they had been "inspired" by it. I fear that what they meant was that they were inspired by the one pull-quote that people tend to quote from it, and ignored the rest. So if someone has linked you to this page, or if…