OpenMKS is a search & navigational tool for large multimedia collections. With pluggable functionality and a core subsystem supporting the z39.50 ZING Community SRW search & retrieval specification, it can be run either as a Servlet or as a Web Service.
SCAM is a development environment for building metadata stores for RDF and the Semantic Web. SCAM is built upon international technology standards and metadata standards. Such as RDF, Dublin Core, IEEE/LOM and IMS.
This project intends to create an indexing search engine, for knowledge management. The primary object is to apply an information retrieval core. And implement a knowledge data discovery theory such as data mining algorithm, text mining.
Searchy is a distributed metainformation search engine whose main goal is to federate search systems and integrate information. It uses RDF as abstract information model and may be used with Dublin Core, FOAF, vCard, etc
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The JSearch Project wants to provide the internet with a Java based generic interface for search engines. It consists of a core interface, search engine adaptors, a sort/merge module and a JSP based GUI.