UTDallas at TREC 2008 Blog Track
TEXAS UNIV AT DALLAS
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This paper describes our participation in the 2008 TREC Blog track. Our system consists of 3 components data preprocessing, topic retrieval, and opinion finding. In the topic retrieval task, we applied Lemur IR toolkit and used various techniques for query expansion. In the opinion finding and polarization task, we employed a feature-based classification approach. Then re-ranking was performed using a linear combination of the opinionated score and the topic relevance score. Our system achieved reasonable performance in this evaluation.
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