Experiments in TREC 2007 Blog Opinion Task at CAS-ICT

This paper describes our participation in TREC 2007 Blog Track Tasks: Opinion retrieval and Polarity classification. As for Opinion retrieval task, a two-step approach is used to retrieve opinion relevant blog unit (that is blog post and its comments) given a query after filtering Spam blog and extracting blog unit. With Polarity Classification, Drag-push [1] based classifier is employed to get polarity of blog unit. Finally, we introduce all the runs submitted.

• Type: Conference
• Year: 2007
• Where: TREC
• Authors: Xiangwen Liao, Donglin Cao, Yu Wang 0009, Wei Liu, Songbo Tan, Hongbo Xu, Xueqi Cheng
• Keywords: Blog Unit, Opinion Retrieval, Polarity Classification, TREC 2007, TREC 2008