{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:55:47Z","timestamp":1762102547870},"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":[[2020,7]]},"abstract":"<jats:p>We study the design of data publishing mechanisms\nthat allow a collection of autonomous distributed datasources to collaborate to support queries.\nA common mechanism  for data publishing is via views:  functions that expose\nderived data to users, usually specified as declarative queries. Our autonomy assumption is\nthat the views must be on individual sources, but with the intention of supporting integrated\nqueries.\nIn deciding what data to expose to users, two considerations must be balanced. The views must be sufficiently expressive\nto support queries that users want to ask -- the utility of the publishing mechanism.\nBut there may also be some expressiveness restriction. Here we consider two restrictions,\na minimal information requirement, saying that the views should reveal as little as possible while supporting the utility\nquery, and a non-disclosure requirement, formalizing the need  to prevent external users from computing  information that data owners do not want revealed.\n We investigate the problem of designing views that satisfy both an expressiveness and an inexpressiveness requirement,\nfor views in a restricted declarative language\n(conjunctive queries), and for arbitrary views.<\/jats:p>","DOI":"10.24963\/kr.2020\/12","type":"proceedings-article","created":{"date-parts":[[2020,8,20]],"date-time":"2020-08-20T04:39:16Z","timestamp":1597898356000},"page":"109-118","source":"Crossref","is-referenced-by-count":1,"title":["Balancing Expressiveness and Inexpressiveness in  View Design"],"prefix":"10.24963","author":[{"given":"Michael","family":"Benedikt","sequence":"first","affiliation":[{"name":"University of Oxford"}]},{"given":"Pierre","family":"Bourhis","sequence":"additional","affiliation":[{"name":"CRIStAL, CNRS, University of Lille, INRIA"}]},{"given":"Louis","family":"Jachiet","sequence":"additional","affiliation":[{"name":"LTCI IP Paris"}]},{"given":"Efthymia","family":"Tsamoura","sequence":"additional","affiliation":[{"name":"Samsung AI Research"}]}],"member":"10584","event":{"number":"17","sponsor":["Artificial Intelligence Journal","Principles of Knowledge Representation and Reasoning Inc.","Association for Logic Programming","Center for Perspicuous Computing","European Association for Artificial Intelligence","Ontopic - The Virtual Knowledge Graph Company"],"acronym":"KR-2020","name":"17th International Conference on Principles of Knowledge Representation and Reasoning {KR-2020}","start":{"date-parts":[[2020,9,12]]},"theme":"Artificial Intelligence","location":"Rhodes, Greece","end":{"date-parts":[[2020,9,18]]}},"container-title":["Proceedings of the Seventeenth International Conference on Principles of Knowledge Representation and Reasoning"],"original-title":[],"deposited":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T21:18:30Z","timestamp":1604611110000},"score":1,"resource":{"primary":{"URL":"https:\/\/proceedings.kr.org\/2020\/12"}},"subtitle":[],"proceedings-subject":"Artificial Intelligence Research Articles","short-title":[],"issued":{"date-parts":[[2020,7]]},"references-count":0,"URL":"https:\/\/doi.org\/10.24963\/kr.2020\/12","relation":{},"subject":[],"published":{"date-parts":[[2020,7]]}}}