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New
The latest blog posts to take off on Hacker News. 97 posts.
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Multidimensional analysis of plot arcs in thousands of TV and movie scripts
Note: a somewhat more complete and slightly less colloquial, but eminently more citeable, version of this work is in the Proceedings of the ...
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Average IQ of students by college major and gender ratio
Randy Olson charts out the IQ of students by their major's gender ratio and reveals a startling trend.
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The R language, for programmers
Some things about the R programming language that programmers coming from other languages are likely to trip over.
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What's wrong with statistics in Julia?
Introduction Link to heading Several months ago, I promised to write an updated version of my old post, “The State of Statistics in Julia”, that would describe how Julia’s support for statistical computing has evolved since December 2012. I’ve kept putting off writing that post for several reasons, but the most…
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Hermitage: Testing the “I” in ACID
tl;dr: I have created a test suite for comparing the transaction isolation levels in different databases. I did this as background research for my book . This post explains why.
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Starting data analysis with R: Things I wish I'd been told
R is a very powerful open source environment for data analysis, statistics and graphing, with thousands of packages available. After my previous blog post about likert-scales and metadata in R , a few of my colleagues mentioned that they were learning R through a Coursera course on data analysis . I have been working…
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The TechCrunch Bubble Index: Parsing Headlines to Quantify Startup Hype
The TechCrunch Bubble Index quantifies the startup funding environment by counting the number of headlines on TechCrunch relating to startup fundraises
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The Reddit Front Page Is Not a Meritocracy
I was pleasantly surprised when somebody shared my traveling salesman animation to reddit and the post made it all the way to reddit’s default front page (i.e. the top 25). The gif racked up over 1.3 …
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Percentage of Bachelor's degrees conferred to women, by major (1970-2012)
Randy Olson charts out the percentage of Bachelor's degrees conferred to women (by major) and makes some startling findings.
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Facebook's software architecture
I had summarized/discussed a couple papers ( Haystack , Memcache caching ) about Facebook's architecture before. Facebook uses simple arch...
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We need tool support for keyset pagination
Pagination without OFFSET has many benefits but one problem: there is no tool support. Please help changing this.
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Naive Bayes and Text Classification I – Introduction and Theory
Naive Bayes classifiers, a family of classifiers that are based on the popular Bayes’ probability theorem, are known for creating simple yet well performing…
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ZooKeeper: Wait-free coordination for Internet-scale systems
Zookeeper is an Apache project for providing coordination services to distributed systems. ZooKeeper aims to provide a simple kernel (a fil...
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The Log: An Epic Software Engineering Article
There's some sort of inflection point where a "long read" becomes an "epic article." I'm not quite sure where that inflection point is, bu...
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Useful Unix commands for exploring data
While dealing with big genetic data sets I often got stuck with limitation of programming languages in terms of reading big files. Also so...
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Perceptual Image Hashing
Joe Bertolami's portfolio and blog covering artificial intelligence, game development, computer graphics, data compression, and more.