Yoon-Sung Kim


2016

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Opinion Retrieval Systems using Tweet-external Factors
Yoon-Sung Kim | Young-In Song | Hae-Chang Rim
Proceedings of COLING 2016, the 26th International Conference on Computational Linguistics: System Demonstrations

Opinion mining is a natural language processing technique which extracts subjective information from natural language text. To estimate an opinion about a query in large data collection, an opinion retrieval system that retrieves subjective and relevant information about the query can be useful. We present an opinion retrieval system that retrieves subjective and query-relevant tweets from Twitter, which is a useful source of obtaining real-time opinions. Our system outperforms previous opinion retrieval systems, and it further provides subjective information about Twitter authors and hashtags to describe their subjective tendencies.