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I came across this article which describes the epsilon-greedy strategy for testing user responses, a big improvement over A/B testing. It’s essentially a simple greedy algorithm with a randomization component to ensure that all possible choices are tested. Continue reading "Market Testing with Epsilon-Greedy Strategy" → Writing Fibonacci functions can be a fun exercise, and a good test of your understanding of recursion. But did you know there’s a faster, more efficient way to calculate Fibonacci numbers? A formula, based on Phi (the golden ratio), which is attributed to Binet, but dates back to Euler before him, makes calculating them extremely fast. Throw in a little caching and your shiny new Fibonacci function is absolutely blazing! It’s been awhile since I’ve published anything, and I think it’s high time I shared some of the fun I’ve been having recently. The most practical of which — JSON — is not new for many people, but when combined with a REST API built in node.js, it all becomes super-cool, super-fast and super-fun to play with. And no, I did not overuse the word ‘super’. Okay. Maybe a little. Continue reading "REST, JSON, HTML and node.js: Connect Them All" → Recently, I’ve been forced to fill a number of gaps in my knowledge of international character sets and encodings. The most important thing I learned is that understanding and working with international languages is surprisingly simple. Continue reading "Character Sets and Character Encoding: A Unicode/UTF-8 Primer" → I love it when something so useful is made so simple to use. Take a look at Resty, an all-in-one HTTP client for Java with native support for parsing JSON. Here’s an example from the Resty website:
Resty r = new Resty();
Object name = r.json("http://ws.geonames.org/" +
"postalCodeLookupJSON?postalcode=66780&country=DE")
.get("postalcodes[0].placeName");
Yesterday, I came across this little gem of a public API: Data Science Toolkit From their web site:
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Copyright © 2013 Sean O'Dell - All Rights Reserved |
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