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The Big Data Brain Drain: Why Science is in Trouble
Update, August 2014: see Hacking Academia , my most recent reflection on this subject.
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The latest blog posts to take off on Hacker News. 4,224 posts.
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Datomic Pro Starter Edition
The free database designed for immutable values and a time-aware information model.
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Hstore development for 9.4 release
I returned back home from PGCon.EU-2013 conference, Dublin, Ireland, where we gave two talks - Next Generation of GIN and Binary storage for nested data structures and application to hstore data type . These projects as well as visiting the conference (I, Teodor Sigaev and Alexander Korotkov) were…
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Principal Component Analysis for Dummies
(I recently wrote a new post that you may also find interesting called Principal Component Analysis 4 Philosophers) Having been in the social sciences for a couple of weeks it seems like a large am…
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Introducing Riak 2.0: Data Types, Strong Consistency, Full-Text Search
The Technical Preview of Riak 2.0 is now available for download.
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Million Lines of Code - Infographic
Is a million lines of code a lot? How many lines of code are there in Windows? Facebook? iPhone apps? Let our data-visualization program your brain.
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Bloom Filters by example
A Bloom filter is a data structure designed to tell you, rapidly and memory-efficiently, whether an element is present in a set.
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Intro to Pandas data structures
Part one of a three part introduction to the pandas library. Geared towards SQL users, but is useful for anyone wanting to get started with pandas.
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Wolfram Alpha’s New Data about Pokémon
It's not all math & science at Wolfram. Today's pop topic: Pokémon! Catch their abilities, stats, icons, curves, creators, games, movies—even X & Y.
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The trouble with timestamps
Some folks have asked whether Cassandra or Riak in last-write-wins mode are monotonically consistent, or whether they can guarantee read-your-writes, and so on. This is a fascinating question, and leads to all sorts of interesting properties about clocks and causality.
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Call me maybe: Cassandra
Cassandra is a Dynamo system; like Riak, it divides a hash ring into a several chunks, and keeps N replicas of each chunk on different nodes. It uses tunable quorums, hinted handoff, and active anti-entropy to keep replicas up to date. Unlike the Dynamo paper and some of its peers, Cassandra eschews vector clocks in…
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Scaling Django to 8 Billion Page Views
At more than 8 billion page views per month and 45k requests per second, we’ve learned a couple things about delivering comments at scale.
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Command-line tools for data science
Blog article by Jeroen Janssens. Sep 19, 2013. 21 min read. Data science is OSEMN (pronounced as awesome). That is, it involves Obtaining, Scrubbing, Exploring, Modelling, and iNterpreting data. As a data scientist, I spend quite a bit of time on the command-line, especially when there’s data to be obtained, scrubbed…
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OpenZFS launch
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Don't use Hadoop when your data isn't that big
"So, how much experience do you have with Big Data and Hadoop?" they asked me. I told them that I use Hadoop all the time, but rarely for jobs larger than a few TB. I'm basically a big data neophite - I know the concepts, I've written code, but never at scale.
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RethinkDB 1.9: Indexing and query runtime performance
This release includes massive enhancements that improve performance of many queries by orders of magnitude. See the full list of enhancements , or watch Joe Doliner ( @jdoliner ), an engineer at RethinkDB, talk about the 1.9 release in this two-minute video:
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Postgresql 9.3 Released
The PostgreSQL Global Development Group announces the release of PostgreSQL 9.3, the latest version of the world's leading open source …