This is a list of some sites that have information on IR systems.
Our very own high-performance IR system, written in Java.
A full-text information retrieval system developed at Berkeley.
A tool to search entire file systems.
Harvest is an integrated set of tools to gather, extract, organize, search, cache,
and replicate relevant information across the Internet.
- Information Retrieval Toolkit
High performance software for IR research.
Freely available software (from CNIDR) for full text and fielded searching.
- Jakarta Lucene
A text search engine written entirely in Java.
MG is a public domain indexing and retrieval system for text, images, and textual images.
The famous Okapi system, developed at City University in London.
A C++ library of an IR system, with bindings for Java, C, Perl and PHP.
A free retrieval system from AOL.
Z39.50/PRISE 2.0 consists of a minimal Z39.50-1995 UNIX (Solaris)
client-server pair and prototype indexing and search engines (PRISE)
developed by NIST.
This is the location of the famous IR test bed, SMART.