teideal glic deisbhéalach

Some months ago, I wrote a Python implementation of Daniel Lemire’s Weighted Slope One collaborative filtering algorithm. Steve Jenson sent me a pointer to his Scala implementation last week, but his code is a straight port of the Python version, not using any of Scala’s tasty functional crunchiness. In an idle period the other evening, I [...]

A few days ago, I wrote a Haskell library for building and working with suffix trees. It builds a suffix tree lazily, so even though its performance is O(n log n) on large input strings, it often has linear performance for many applications.
The implementation is simple and easy to read; the API is well-documented and [...]

I’ve had an account on del.icio.us for several years, but I only started using it heavily perhaps a year ago. While it’s a wonderful site in many respects, I’ve been surprised and disappointed by what’s happened since Yahoo acquired the company: nothing at all.
Clearly, Yahoo has had no idea what to do with their acquisition: [...]

Irish television hasn’t changed much since I left the country twelve years ago. The main national broadcaster, RTÉ, mainly serves up imported American and British shows, with locally originated fare dominated by vast quantities of sports coverage, a few soaps and talk shows, and the occasional documentary. It’s a tepid, uninspiring mix.
Except for one show, [...]