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- Irwin King, Juan-Zi Li, Gui-Rong Xue, Jie Tang, editors, Proceedings of the 2nd ACM Workshop on Social Web Search and Mining, CIKM-SWSM 2009, Hong Kong, China, November 2, 2009. ACM, 2009.
- John Tait, Helmut Berger, Michael Dittenbach, Mihai Lupu, editors, Proceedings of the 2nd International Workshop on Patent Information Retrieval, PaIR '09, Hong Kong, SAR, China, November 6, 2009. ACM, 2009.
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- Maojin Jiang, Bei Yu 0002, editors, Proceedings of the 1st International CIKM Workshop on Topic-Sentiment Analysis for Mass Opinion, TSA '09, Hong Kong, SAR, China, November 6, 2009. ACM, 2009.
- Doheon Lee, Russ B. Altman, Min Song, Jun Huan, editors, Proceeding of the 3rd International Workshop on Data and Text Mining in Bioinformatics, DTMBIO 2009, Hong Kong, China, November 6, 2009. ACM, 2009.
- David Wai-Lok Cheung, Il-Yeol Song, Wesley W. Chu, Xiaohua Hu, Jimmy J. Lin, editors, Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009. ACM, 2009.