Mono- and Crosslingual Retrieval Experiments at the University of Hildesheim

In this year’s participation we continued to evaluate open source information retrieval software. We used mainly the system Lucene and experimented with some of the most effective optimization strategies applied in CLEF. The effectiveness of open source and other free tools can be enhanced by these optimization strategies. For most languages, blind relevance feedback leads to considerable improvement. Indexing strategies with n-grams have not led to improvements within Lucene.

• Type: Conference
• Year: 2004
• Where: CLEF
• Authors: René Hackl, Thomas Mandl, Christa Womser-Hacker
• Keywords: CLEF 2004, Effective Optimization Strategies, Open Source, Optimization Strategies