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, and question answering. ... The development of such interfaces requires collaboration of a range of different fields, including natural language processing, information extraction, knowledge base construction and population, reasoning ... KG4IR group will bring the theme of Knowledge Graphs and Semantics for Text Retrieval and Analysis, whereas OKBQA group will bring the theme of Open Knowledge Base and Question Answering. ...doi:10.1145/3077136.3084372 dblp:conf/sigir/ChoiMVKN17 fatcat:dzdw75bjkfb2xnpmh4ewvzsbuq