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ACL 2011 Debrief

Lin Ziheng

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Portland

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Pride parade

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Invited talk: Watson DeepQA

• David Ferrucci, IBM

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Interesting papers: Sentiment analysis

• Target-dependent Twitter Sentiment Classification– Long Jiang, Mo Yu, Ming Zhou, Xiaohua Liu, Tiejun

Zhao– Classify a tweet as +ve, -ve, or neutral– Query dependent features, eg, iPad, Lady Gaga– Context: related tweets, eg, retweets, replies

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Interesting papers: Sentiment analysis

• Content Models with Attitude– Christina Sauper, Aria Haghighi, Regina Barzilay– A joint prob topic model to jointly identity • product properties (battery life, image, …) and• the aggregate user sentiment

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Interesting papers: Sentiment analysis

• Contrasting Opposing Views of News Articles on Contentious Issues– Souneil Park, Kyung Soon Lee, Junehwa Song– News articles are always biased difficult for

readers to understand the conflicting arguments and contention

– Build a opponent-based frame

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Interesting papers: Summarization

• Coherent Citation-Based Summarization of Scientific Papers– Amjad Abu-Jbara and Dragomir Radev– Previous approaches: extract and select citation

sentences – Produce readable and cohesive citation-based

summary• Multiple references in one citation sentence• Sentence ordering• Position and format of reference

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My talk

• Automatically Evaluating Text Coherence Using Discourse Relations– Ziheng Lin, Hwee Tou Ng, Min-Yen Kan– Last day of main conference – Feedbacks is quite good• Many questions in Q&A• Received an email after the talk