{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:20:10Z","timestamp":1750306810470,"version":"3.41.0"},"publisher-location":"New York, NY, USA","reference-count":32,"publisher":"ACM","license":[{"start":{"date-parts":[[2014,2,24]],"date-time":"2014-02-24T00:00:00Z","timestamp":1393200000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2014,2,24]]},"DOI":"10.1145\/2556195.2556204","type":"proceedings-article","created":{"date-parts":[[2014,2,18]],"date-time":"2014-02-18T14:10:41Z","timestamp":1392732641000},"page":"655-660","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["On discovering non-obvious recommendations"],"prefix":"10.1145","author":[{"given":"Panagiotis","family":"Adamopoulos","sequence":"first","affiliation":[{"name":"Leonard N. Stern School of Business, New York University, New York, NY, USA"}]}],"member":"320","published-online":{"date-parts":[[2014,2,24]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_3_2_1_1_1","DOI":"10.1145\/1639714.1639769"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_2_1","DOI":"10.1145\/2507157.2508073"},{"volume-title":"An Interdisciplinary Analysis of Student Retention in Online Courses. In ICIS '13","year":"2013","author":"Adamopoulos P.","key":"e_1_3_2_1_3_1"},{"volume-title":"DiveRS 2011 - ACM RecSys 2011 Workshop on Novelty and Diversity in Recommender Systems, RecSys '11","year":"2011","author":"Adamopoulos P.","key":"e_1_3_2_1_4_1"},{"volume-title":"New York University, 2013","year":"1832","author":"Adamopoulos P.","key":"e_1_3_2_1_5_1"},{"volume-title":"New York University, 2013","year":"1988","author":"Adamopoulos P.","key":"e_1_3_2_1_6_1"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_7_1","DOI":"10.1145\/2507157.2507229"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_8_1","DOI":"10.1109\/TKDE.2011.15"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_9_1","DOI":"10.1109\/TKDE.2005.99"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_10_1","DOI":"10.1287\/mnsc.43.12.1676"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_11_1","DOI":"10.1145\/245108.245124"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_12_1","DOI":"10.1287\/mnsc.3.1.93"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_13_1","DOI":"10.1109\/MSPEC.2009.4907383"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_14_1","DOI":"10.1023\/A:1026501525781"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_15_1","DOI":"10.1287\/mnsc.49.11.1580.20580"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_16_1","DOI":"10.5555\/2042182.2042197"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_17_1","DOI":"10.1287\/mnsc.1080.0974"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_18_1","DOI":"10.1145\/2043932.2043951"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_19_1","DOI":"10.1007\/978-3-642-38844-6_3"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_20_1","DOI":"10.5555\/1941904"},{"volume-title":"University of Pennsylvania","year":"1991","author":"Kahn B.","key":"e_1_3_2_1_21_1"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_22_1","DOI":"10.1145\/245108.245126"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_23_1","DOI":"10.1007\/s11257-011-9112-x"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_24_1","DOI":"10.1109\/MC.2009.263"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_25_1","DOI":"10.1007\/978-0-387-85820-3_21"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_26_1","DOI":"10.1145\/1125451.1125659"},{"volume-title":"ECSCW '01","year":"2001","author":"O'Connor M.","key":"e_1_3_2_1_27_1"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_28_1","DOI":"10.1007\/978-0-387-85820-3_15"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_29_1","DOI":"10.1137\/0209009"},{"volume-title":"Springer","year":"2013","author":"Yoo K.-H.","key":"e_1_3_2_1_30_1"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_31_1","DOI":"10.1073\/pnas.1000488107"},{"doi-asserted-by":"publisher","key":"e_1_3_2_1_32_1","DOI":"10.1145\/1060745.1060754"}],"event":{"sponsor":["SIGMOD ACM Special Interest Group on Management of Data","SIGWEB ACM Special Interest Group on Hypertext, Hypermedia, and Web","SIGKDD ACM Special Interest Group on Knowledge Discovery in Data","SIGIR ACM Special Interest Group on Information Retrieval"],"acronym":"WSDM 2014","name":"WSDM 2014: Seventh ACM International Conference on Web Search and Data Mining","location":"New York New York USA"},"container-title":["Proceedings of the 7th ACM international conference on Web search and data mining"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2556195.2556204","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/2556195.2556204","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T07:35:05Z","timestamp":1750232105000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2556195.2556204"}},"subtitle":["using unexpectedness and neighborhood selection methods in collaborative filtering systems"],"short-title":[],"issued":{"date-parts":[[2014,2,24]]},"references-count":32,"alternative-id":["10.1145\/2556195.2556204","10.1145\/2556195"],"URL":"https:\/\/doi.org\/10.1145\/2556195.2556204","relation":{},"subject":[],"published":{"date-parts":[[2014,2,24]]},"assertion":[{"value":"2014-02-24","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}