{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T02:56:35Z","timestamp":1776394595232,"version":"3.51.2"},"reference-count":34,"publisher":"Association for Computing Machinery (ACM)","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proc. VLDB Endow."],"published-print":{"date-parts":[[2015,4]]},"abstract":"<jats:p>The upsurge in the number of web users over the last two decades has resulted in a significant growth of online information. This information growth calls for recommenders that personalize the information proposed to each individual user. Nevertheless, personalization also opens major privacy concerns.<\/jats:p>\n          <jats:p>\n            This paper presents\n            <jats:italic>D<\/jats:italic>\n            2\n            <jats:italic>P<\/jats:italic>\n            , a novel protocol that ensures a strong form of differential privacy, which we call distance-based differential privacy, and which is particularly well suited to recommenders.\n          <\/jats:p>\n          <jats:p>\n            <jats:italic>D<\/jats:italic>\n            2\n            <jats:italic>P<\/jats:italic>\n            avoids revealing exact user profiles by creating\n            <jats:italic>altered<\/jats:italic>\n            profiles where each item is replaced with another one at some\n            <jats:italic>distance.<\/jats:italic>\n            We evaluate\n            <jats:italic>D<\/jats:italic>\n            2\n            <jats:italic>P<\/jats:italic>\n            analytically and experimentally on MovieLens and Jester datasets and compare it with other private and non-private recommenders.\n          <\/jats:p>","DOI":"10.14778\/2757807.2757811","type":"journal-article","created":{"date-parts":[[2015,5,12]],"date-time":"2015-05-12T15:37:52Z","timestamp":1431445072000},"page":"862-873","source":"Crossref","is-referenced-by-count":31,"title":["<i>D<\/i>\n            2\n            <i>P<\/i>"],"prefix":"10.14778","volume":"8","author":[{"given":"Rachid","family":"Guerraoui","sequence":"first","affiliation":[{"name":"EPFL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anne-Marie","family":"Kermarrec","sequence":"additional","affiliation":[{"name":"INRIA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rhicheek","family":"Patra","sequence":"additional","affiliation":[{"name":"EPFL"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mahsa","family":"Taziki","sequence":"additional","affiliation":[{"name":"EPFL"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2015,4]]},"reference":[{"key":"e_1_2_1_1_1","volume-title":"inc. privacy policy","year":"2014"},{"key":"e_1_2_1_2_1","first-page":"911","volume-title":"New Economy Handbook","author":"Ackerman M. 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In European Journal of Information Systems"},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1109\/WCSE.2009.822"},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1145\/1557019.1557090"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.1145\/336597.336662"},{"key":"e_1_2_1_23_1","unstructured":"MovieLens dataset 2003. http:\/\/grouplens.org\/datasets\/movielens\/. MovieLens dataset 2003. http:\/\/grouplens.org\/datasets\/movielens\/."},{"key":"e_1_2_1_24_1","doi-asserted-by":"publisher","DOI":"10.1109\/SP.2008.33"},{"key":"e_1_2_1_25_1","doi-asserted-by":"publisher","DOI":"10.5555\/951949.952122"},{"key":"e_1_2_1_26_1","doi-asserted-by":"publisher","DOI":"10.1145\/2168836.2168857"},{"key":"e_1_2_1_27_1","doi-asserted-by":"publisher","DOI":"10.1109\/4236.968832"},{"key":"e_1_2_1_28_1","doi-asserted-by":"publisher","DOI":"10.1145\/502716.502737"},{"key":"e_1_2_1_29_1","doi-asserted-by":"publisher","DOI":"10.1145\/371920.372071"},{"key":"e_1_2_1_30_1","first-page":"2","author":"Schr\u00f6der G.","year":"2011","journal-title":"In UCERSTI"},{"key":"e_1_2_1_31_1","doi-asserted-by":"publisher","DOI":"10.1155\/2009\/421425"},{"key":"e_1_2_1_32_1","first-page":"1","volume-title":"On the impossibility of cryptography alone for privacy-preserving cloud computing","author":"Van Dijk M.","year":"2010"},{"key":"e_1_2_1_33_1","volume-title":"MLnet\/ECML","author":"Van Meteren R.","year":"2000"},{"key":"e_1_2_1_34_1","first-page":"59","volume-title":"Deriving private information from randomly perturbed ratings","author":"Zhang S.","year":"2006"}],"container-title":["Proceedings of the VLDB Endowment"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.14778\/2757807.2757811","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T09:45:30Z","timestamp":1672220730000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.14778\/2757807.2757811"}},"subtitle":["distance-based differential privacy in recommenders"],"short-title":[],"issued":{"date-parts":[[2015,4]]},"references-count":34,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2015,4]]}},"alternative-id":["10.14778\/2757807.2757811"],"URL":"https:\/\/doi.org\/10.14778\/2757807.2757811","relation":{},"ISSN":["2150-8097"],"issn-type":[{"value":"2150-8097","type":"print"}],"subject":[],"published":{"date-parts":[[2015,4]]}}}