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Inf. Syst."],"published-print":{"date-parts":[[2024,3,31]]},"abstract":"<jats:p>Document-grounded dialogue (DGD) uses documents as external knowledge for dialogue generation. Correctly understanding the dialogue context is crucial for selecting knowledge from the document and generating proper responses. In this article, we propose using a dialogue policy to help the dialogue understanding in DGD. Our dialogue policy consists of two kinds of guiding signals: utterance function and topic transfer intent. The utterance function reflects the purpose and style of an utterance, and the topic transfer intent reflects the topic and content of an utterance. We propose a novel framework exploiting our dialogue policy for two core tasks in DGD, namely, knowledge selection (KS) and response generation (RG). The framework consists of two modules: the policy planner leverages policy-aware dialogue representation to select knowledge and predict the policy of the response; the generator uses policy\/knowledge-aware dialogue representation for response generation. Our policy-driven model gets state-of-the-art performance on three public benchmarks, and we provide a detailed analysis of the experimental results. Our code\/data will be released on GitHub.<\/jats:p>","DOI":"10.1145\/3617829","type":"journal-article","created":{"date-parts":[[2023,8,29]],"date-time":"2023-08-29T11:48:14Z","timestamp":1693309694000},"page":"1-29","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Policy-driven Knowledge Selection and Response Generation for Document-grounded Dialogue"],"prefix":"10.1145","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1431-8485","authenticated-orcid":false,"given":"Longxuan","family":"Ma","sequence":"first","affiliation":[{"name":"Research Center for Social Computing and Information Retrieval, Harbin Institute of Technology, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1521-7787","authenticated-orcid":false,"given":"Jiapeng","family":"Li","sequence":"additional","affiliation":[{"name":"Research Center for Social Computing and Information Retrieval, Harbin Institute of Technology, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3693-8412","authenticated-orcid":false,"given":"Mingda","family":"Li","sequence":"additional","affiliation":[{"name":"Research Center for Social Computing and Information Retrieval, Harbin Institute of Technology, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5981-4752","authenticated-orcid":false,"given":"Wei-Nan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Research Center for Social Computing and Information Retrieval, Harbin Institute of Technology, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-1999-2600","authenticated-orcid":false,"given":"Ting","family":"Liu","sequence":"additional","affiliation":[{"name":"Research Center for Social Computing and Information Retrieval, Harbin Institute of Technology, China"}]}],"member":"320","published-online":{"date-parts":[[2023,11,8]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/002383099103400404"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/d18-1431"},{"key":"e_1_3_2_4_2","volume-title":"Proceedings of the International Conference on Language Resources and Evaluation","author":"Bunt Harry","year":"2010","unstructured":"Harry Bunt, Jan Alexandersson, Jean Carletta, Jae-Woong Choe, Alex Chengyu Fang, K\u00f4iti Hasida, Kiyong Lee, Volha Petukhova, Andrei Popescu-Belis, Laurent Romary, Claudia Soria, and David R. 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