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    <abstract>Question answering is always an attractive and challenging task in natural language processing area. There are some open domain question answering systems, such as IBM Waston, which take the unstructured text data as input, in some ways of humanlike thinking process and a mode of artificial intelligence. At the conference on Natural Language Processing and Chinese Computing (NLPCC) 2016, China Computer Federation hosted a shared task evaluation about Open Domain Question Answering. We achieve the 2nd place at the document-based subtask. In this paper, we present our solution, which consists of feature engineering in lexical and semantic aspects and model training methods. As the result of the evaluation shows, our solution provides a valuable and brief model which could be used in modelling question answering or sentence semantic relevance. We hope our solution would contribute to this vast and significant task with some heuristic thinking.</abstract>
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%0 Conference Proceedings
%T Combining Lexical and Semantic-based Features for Answer Sentence Selection
%A Shi, Jing
%A Xu, Jiaming
%A Yao, Yiqun
%A Zheng, Suncong
%A Xu, Bo
%Y Choi, Key-Sun
%Y Unger, Christina
%Y Vossen, Piek
%Y Kim, Jin-Dong
%Y Kando, Noriko
%Y Ngonga Ngomo, Axel-Cyrille
%S Proceedings of the Open Knowledge Base and Question Answering Workshop (OKBQA 2016)
%D 2016
%8 December
%I The COLING 2016 Organizing Committee
%C Osaka, Japan
%F shi-etal-2016-combining
%X Question answering is always an attractive and challenging task in natural language processing area. There are some open domain question answering systems, such as IBM Waston, which take the unstructured text data as input, in some ways of humanlike thinking process and a mode of artificial intelligence. At the conference on Natural Language Processing and Chinese Computing (NLPCC) 2016, China Computer Federation hosted a shared task evaluation about Open Domain Question Answering. We achieve the 2nd place at the document-based subtask. In this paper, we present our solution, which consists of feature engineering in lexical and semantic aspects and model training methods. As the result of the evaluation shows, our solution provides a valuable and brief model which could be used in modelling question answering or sentence semantic relevance. We hope our solution would contribute to this vast and significant task with some heuristic thinking.
%U https://aclanthology.org/W16-4404
%P 30-38

Markdown (Informal)

[Combining Lexical and Semantic-based Features for Answer Sentence Selection](https://aclanthology.org/W16-4404) (Shi et al., 2016)

• Combining Lexical and Semantic-based Features for Answer Sentence Selection (Shi et al., 2016)

ACL

• Jing Shi, Jiaming Xu, Yiqun Yao, Suncong Zheng, and Bo Xu. 2016. Combining Lexical and Semantic-based Features for Answer Sentence Selection. In Proceedings of the Open Knowledge Base and Question Answering Workshop (OKBQA 2016), pages 30–38, Osaka, Japan. The COLING 2016 Organizing Committee.