MG4J is a highly customizable, high-performance, full-text Java search engine for large document collections. It provides state-of-the-art features (such as BM25/BM25F scoring) and new research algorithms.
The DSI utilities are a mixed collection of
classes accumulated during the last ten years in
projects developed at the DSI (Dipartimento di
Scienze dell'Informazione, i.e., Information
Sciences Department) of the Università degli
Studi di Milano.