The Xtrieval Framework at CLEF 2008: Domain-Specific Track

This article describes our participation at the Domain-Specific track. We used the Xtrieval framework [2], [3] for the preparation and execution of the experiments. The translation of the topics for the cross-lingual experiments was realized with a plug-in to access the Google AJAX language API2 . This year, we submitted 20 experiments in total. In all our experiments we applied a standard top-k pseudo-relevance feedback algorithm. Also, all of our submissions were merged experiments, where multiple stemming approaches for each language were combined to improve retrieval performance. The evaluation of the experiments showed that the combination of stemming methods works very well. Translating the topics for the bilingual experiments deteriorated the retrieval effectiveness only between 8 and 15 percent in comparison to our best monolingual experiments. Categories and Subject Descriptors H.3 [Information Storage and Retrieval]: H.3.1 Content Analysis and Indexing; H.3.3 Information Sea...

• Type: Conference
• Year: 2008
• Where: CLEF
• Authors: Jens Kürsten, Thomas Wilhelm, Maximilian Eibl
• Keywords: CLEF 2008, Cross-language Information Retrieval, Information Management, Multiple Stemming Approaches, Retrieval Keywords Evaluation