Similarity measures for tracking information flow
Proceedings of the 14th ACM international conference on Information and knowledge management
ACM SIGIR Forum
Overview of the CLEF 2006 multilingual question answering track
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
The MIRACLE team at the CLEF 2008 multilingual question answering track
CLEF'08 Proceedings of the 9th Cross-language evaluation forum conference on Evaluating systems for multilingual and multimodal information access
Learning to select the correct answer in multi-stream question answering
Information Processing and Management: an International Journal
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We describe the participation of MIRACLE group in the QA track at CLEF. We participated in three subtasks and presented two systems that works in Spanish. The first system is a traditional QA system and was evaluated in the main task and the Real-Time QA pilot. The system features improved Named Entity recognition and shallow linguistic analysis and achieves moderate performance. In contrast, results obtained in RT-QA shows that this approach is promising to provide answers in constrained time. The second system focus in the WiQA pilot task, that aims at retrieving important snippets to complete a Wikipedia. The system uses collection link structure, cosine similarity and Named Entities to retrieve new and important snippets. Although the experiments have not been exhaustive it seems that the performance depends on the type of concept.