Social Event Radar: A Bilingual Context Mining and Sentiment Analysis Summarization System Wen-Tai Hsieh author Chen-Ming Wu author Tsun Ku author Seng-cho T Chou author 2012-07 text Proceedings of the ACL 2012 System Demonstrations Min Zhang editor Association for Computational Linguistics Jeju Island, Korea conference publication hsieh-etal-2012-social https://aclanthology.org/P12-3028/ 2012-07 163 168