can anybody please explain to me about this BM25 algorithm presented on wikipedia link text i'm always bad with math, lol. currently im using classic t-idf which isn't quite good. thanks.
A:
Yahoo ranking algorithms are best explained here http://seocockstars.com/2010/01/what-yahoo-loves/, lol.
Now seriously, have you looked at http://xapian.org/docs/bm25.html or http://nlp.uned.es/~jperezi/Lucene-BM25/ (Java source).
Do you use Solr, Xapian or something else?
Frank Malina
2010-09-28 16:21:06