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Process."],"published-print":{"date-parts":[[2020,11,30]]},"abstract":"<jats:p>Relation classification is one of the most fundamental upstream tasks in natural language processing and information extraction. State-of-the-art approaches make use of various deep neural networks (DNNs) to extract higher-level features directly. They can easily access to accurate classification results by taking advantage of both local entity features and global sentential features. Recent works on relation classification devote efforts to modify these neural networks, but less attention has been paid to the feature design concerning syntax. However, from a linguistic perspective, syntactic features are essential for relation classification. In this article, we present a novel linguistically motivated approach that enhances relation classification by imposing additional syntactic constraints. We investigate to leverage syntactic skeletons along with the sentential contexts to identify hidden relation types. The syntactic skeletons are extracted under the guidance of prior syntax knowledge. During extraction, the input sentences are recursively decomposed into syntactically shorter and simpler chunks. Experimental results on the SemEval-2010 Task 8 benchmark show that incorporating syntactic skeletons into current DNN models enhances the task of relation classification. Our systems significantly surpass two strong baseline systems. One of the substantial advantages of our proposal is that this framework is extensible for most current DNN models.<\/jats:p>","DOI":"10.1145\/3402885","type":"journal-article","created":{"date-parts":[[2020,9,27]],"date-time":"2020-09-27T22:05:45Z","timestamp":1601244345000},"page":"1-21","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["An Extensible Framework of Leveraging Syntactic Skeleton for Semantic Relation Classification"],"prefix":"10.1145","volume":"19","author":[{"given":"Hao","family":"Wang","sequence":"first","affiliation":[{"name":"Shanghai University, Shanghai, China"}]},{"given":"Qiongxing","family":"Tao","sequence":"additional","affiliation":[{"name":"Shanghai University, Shanghai, China"}]},{"given":"Siyuan","family":"Du","sequence":"additional","affiliation":[{"name":"Shanghai University, Shanghai, China"}]},{"given":"Xiangfeng","family":"Luo","sequence":"additional","affiliation":[{"name":"Shanghai University, Shanghai, China"}]}],"member":"320","published-online":{"date-parts":[[2020,9,27]]},"reference":[{"key":"e_1_2_1_1_1","unstructured":"Nguyen Bach and Sameer Badaskar. 2007. 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