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Eng."],"published-print":{"date-parts":[[2019,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>With the growing availability of different knowledge graphs in a variety of domains, question answering over knowledge graph (KG-QA) becomes a prevalent information retrieval approach. Current KG-QA methods usually resort to semantic parsing, search or neural matching models. However, they cannot well tackle increasingly long input questions and complex information needs. In this work, we propose a new KG-QA approach, leveraging the rich domain context in the knowledge graph. We incorporate the new approach with question and answer domain context descriptions. Specifically, for questions, we enrich them with users\u2019 subsequent input questions within a session and expand the input question representation. For the candidate answers, we equip them with surrounding context structures, i.e., meta-paths within the targeting knowledge graph. On top of these, we design a cross-attention mechanism to improve the question and answer matching performance. An experimental study on real datasets verifies these improvements. The new approach is especially beneficial for specific knowledge graphs with complex questions.<\/jats:p>","DOI":"10.1007\/s41019-019-00109-w","type":"journal-article","created":{"date-parts":[[2019,11,4]],"date-time":"2019-11-04T17:03:17Z","timestamp":1572886997000},"page":"323-335","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Leveraging Domain Context for Question Answering Over Knowledge Graph"],"prefix":"10.1007","volume":"4","author":[{"given":"Peihao","family":"Tong","sequence":"first","affiliation":[]},{"given":"Qifan","family":"Zhang","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5637-8083","authenticated-orcid":false,"given":"Junjie","family":"Yao","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2019,11,4]]},"reference":[{"key":"109_CR1","unstructured":"Berant J, Chou A, Frostig R, Liang P (2013) Semantic parsing on freebase from question\u2013answer pairs. 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