Please find below some of the most popular articles I've written on Gary's Guide To Expert-search.

I built a 4 million document archive from Github commits, which lets you search for open source experts, ranked by commit count. Click here to try the demo. Solr is a relatively recent addition to the world of Lucene (2007); it adds a web-app UI over lucene, scaling (highly available reads), and configuration. For those [...] Read More...

The following are some interesting statistics about the Github expert-finder. Unique repositories: 18,977 Source git repos (GB): 250+ GB Solr Index Size: 3.2 GB Time to build index: ~12 hours spread over several days (had to restart indexer several times) Number of commits:  4,579,236   Read More...