Research
Neural Question Generation for Reading Comprehension
Deep Learning for Fine-grained Opinion Extraction
Research intern at Cornell NLP group, supervised by Prof. Claire Cardie.
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Proposed to evaluate labeling sequences using sentence-level log-likelihood (SLL) at output layer of deep recurrent neural networks. Empirical results showed around 4% improvement on F-measure of opinion target extraction and more accurate n-best ranking for labeling sequences.
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Proposed to use deep recurrent neural networks to produce the n-best labeling sequences which can be fed into integer linear programming (ILP) system for joint inference.
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Designed heuristic rules using dependency parse tree to eliminate inappropriate opinion candidates during inference. Empirical results showed higher precision and higher F-measure.
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Building an ensemble system using the above algorithm to participate in Belief and Sentiment Evaluation 2015 (BeSt2015).
Online Auction Mechanism Design with Time-varying Value
Research assistant at Advanced Network Laboratory, Shanghai Jiao Tong University
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Proposed the new scenario in online auction mechanism design where agent’s value may vary over time.
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Extended the classic payment determination algorithm (Myerson) to fit the new model. Proposed mechansim ensured strategy-proofness and achieved constant competitive ratio.