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Machine Learning: A Love Story
The video from my keynote at Strange Loop 2010 is up! You can watch the video here: Machine Learning: A Love Story The original abstract: Machine learning has come a long way in recent years — from…
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 83 posts.
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MongoDB 2.0 Should Have Been 1.0
Recapping the criticisms made about MongoDB.
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SQLAlchemy and You
The Django ORM feels so much easier than SQLAlchemy? Maybe this article can change your perception.
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Google+ launches ‘Ripples’ visualisation
After what appears to be have been a rapid and widespread take-up of its Google+ social media service, Google has now launched details of its 'Ripples' feature. Significantly, news of the release was made by Fernanda Viegas, one of the most prominent names in the field and co-leader, with Martin Wattenberg, of…
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Hi My Name is John…and I am addicted to analytics
…and I am addicted to analytics. It all started when I was a wee lad. I quite enjoyed playing Tecmo NBA Basketball, among other games. One day, while…
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MySQL Text vs. Varchar Performance
Starting with MySQL 5.0.3, the maximum field length for VARCHAR fields was increased from 255 characters to 65,535 characters. This is good news, as VARCHAR fields, as opposed to TEXT fields, are stored in-row for the MyISAM storage engine (InnoDB has different characteristics). TEXT and BLOB fields are not stored…
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Using Python and heat maps to determine the best place to aim on a dart board
Over break I went out with a buddy of mine and played some darts. This got me to thinking, where exactly should someone aim in order t...
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MapReduce for the Masses: Zero to Hadoop in 5 minutes with Common Crawl
Common Crawl aims to change the big data game with our repository of over 40 terabytes of high-quality web crawl information into the Amazon cloud, the net total of 5 billion crawled pages.
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Visualizing Time with the Infinity Hour Chart
This is another experiment in visualizing 24-hour cyclical data. My last post explored a method of linear representation (the Double Time Bar Chart). Linear representations have problems when it comes to showing the cyclical nature of time data (ie there is no start or end of a 24 hour cycle). Inspiration When trying…
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1 Database Containing 35,000,000 Google Profiles. Implications?
UPDATE 2012-02-16: raver1975 released a SQL database w/35M Google Profiles as .torrent on The Pirate Bay. UPDATE 2011-06-10: Central question in the Google discussion is whether mass-aggregation of profile data…
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MongoDB, Data Durability and Improvements coming in 1.8
Last weekend I tweeted two links to two tweets by a poor guy who apparently got his MongoDB database into an unrecoverable state during shutdown whilst upgrading to a newer version. That tweet quickly made the rounds, and the next morning I saw myself staring at replies stating that it was all his fault, because he…
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MongoDB and Riak, In Context (and an apology)
There has been quite a bit of furor and excitement on the Internet this week regarding some very public criticisms (and defenses) of MongoDB and its creators, 10gen . Unfortunately, a ghost from my recent past also resurfaced as a result. Let me begin by apologizing to 10gen and its engineers for what I said at JSConf…