NTU at TREC 2007 Blog Track

We participated in the Opinion Retrieval Task and the Polarity Subtask. An SVM classifier was used to determine the opinion polarities of documents. We found that the opinion mean average precisions for the runs using the SVM classifier is better than the opinion mean average precisions for the runs produced solely by the TFIDF retrieval model.

• Type: Conference
• Year: 2007
• Where: TREC
• Authors: Kevin Hsin-Yih Lin, Hsin-Hsi Chen
• Keywords: Mean Average Precisions, Opinion Retrieval Task, SVM Classifier, TREC 2007, TREC 2008