{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:50:36Z","timestamp":1762102236651},"publisher-location":"California","reference-count":0,"publisher":"International Joint Conferences on Artificial Intelligence Organization","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:p>Several semantics have been proposed to query inconsistent ontological knowledge bases, including the intersection of repairs and the intersection of closed repairs as two approximate inconsistency-tolerant semantics. In this paper, we analyze the complexity of conjunctive query answering under these two semantics for a wide range of Datalog+\/- languages. We consider both the standard setting, where errors may only be in the database, and the generalized setting, where also the rules of a Datalog+\/- knowledge base may be erroneous.<\/jats:p>","DOI":"10.24963\/ijcai.2018\/265","type":"proceedings-article","created":{"date-parts":[[2018,7,5]],"date-time":"2018-07-05T05:49:10Z","timestamp":1530769750000},"page":"1921-1927","source":"Crossref","is-referenced-by-count":6,"title":["Complexity of Approximate Query Answering under Inconsistency in Datalog+\/-"],"prefix":"10.24963","author":[{"given":"Thomas","family":"Lukasiewicz","sequence":"first","affiliation":[{"name":"Department of Computer Science, University of Oxford, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Enrico","family":"Malizia","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of Exeter, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristian","family":"Molinaro","sequence":"additional","affiliation":[{"name":"DIMES, University of Calabria, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10584","event":{"number":"27","sponsor":["International Joint Conferences on Artificial Intelligence Organization (IJCAI)"],"acronym":"IJCAI-2018","name":"Twenty-Seventh International Joint Conference on Artificial Intelligence {IJCAI-18}","start":{"date-parts":[[2018,7,13]]},"theme":"Artificial Intelligence","location":"Stockholm, Sweden","end":{"date-parts":[[2018,7,19]]}},"container-title":["Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence"],"original-title":[],"deposited":{"date-parts":[[2018,7,5]],"date-time":"2018-07-05T05:51:22Z","timestamp":1530769882000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ijcai.org\/proceedings\/2018\/265"}},"subtitle":[],"proceedings-subject":"Artificial Intelligence Research Articles","short-title":[],"issued":{"date-parts":[[2018,7]]},"references-count":0,"URL":"https:\/\/doi.org\/10.24963\/ijcai.2018\/265","relation":{},"subject":[],"published":{"date-parts":[[2018,7]]}}}