Dehong Gao


2020

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Deep Hierarchical Classification for Category Prediction in E-commerce System
Dehong Gao
Proceedings of The 3rd Workshop on e-Commerce and NLP

In e-commerce system, category prediction is to automatically predict categories of given texts. Different from traditional classification where there are no relations between classes, category prediction is reckoned as a standard hierarchical classification problem since categories are usually organized as a hierarchical tree. In this paper, we address hierarchical category prediction. We propose a Deep Hierarchical Classification framework, which incorporates the multi-scale hierarchical information in neural networks and introduces a representation sharing strategy according to the category tree. We also define a novel combined loss function to punish hierarchical prediction losses. The evaluation shows that the proposed approach outperforms existing approaches in accuracy.

2015

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Cross-lingual Sentiment Lexicon Learning With Bilingual Word Graph Label Propagation
Dehong Gao | Furu Wei | Wenjie Li | Xiaohua Liu | Ming Zhou
Computational Linguistics, Volume 41, Issue 1 - March 2015

2013

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Sequential Summarization: A New Application for Timely Updated Twitter Trending Topics
Dehong Gao | Wenjie Li | Renxian Zhang
Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)

2012

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Towards Scalable Speech Act Recognition in Twitter: Tackling Insufficient Training Data
Renxian Zhang | Dehong Gao | Wenjie Li
Proceedings of the Workshop on Semantic Analysis in Social Media

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Efficient Feedback-based Feature Learning for Blog Distillation as a Terabyte Challenge
Dehong Gao | Wenjie Li | Renxian Zhang
Proceedings of COLING 2012: Demonstration Papers

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Beyond Twitter Text: A Preliminary Study on Twitter Hyperlink and its Application
Dehong Gao | Wenjie Li | Renxian Zhang
Proceedings of COLING 2012: Demonstration Papers

2011

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Simultaneous Clustering and Noise Detection for Theme-based Summarization
Xiaoyan Cai | Renxian Zhang | Dehong Gao | Wenjie Li
Proceedings of 5th International Joint Conference on Natural Language Processing