{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T05:19:44Z","timestamp":1784179184072,"version":"3.55.0"},"publisher-location":"New York, NY, USA","reference-count":20,"publisher":"ACM","license":[{"start":{"date-parts":[[2009,2,9]],"date-time":"2009-02-09T00:00:00Z","timestamp":1234137600000},"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":[[2009,2,9]]},"DOI":"10.1145\/1498759.1498766","type":"proceedings-article","created":{"date-parts":[[2009,2,10]],"date-time":"2009-02-10T16:46:07Z","timestamp":1234284367000},"page":"5-14","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":639,"title":["Diversifying search results"],"prefix":"10.1145","author":[{"given":"Rakesh","family":"Agrawal","sequence":"first","affiliation":[{"name":"Search Labs, Microsoft Research"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sreenivas","family":"Gollapudi","sequence":"additional","affiliation":[{"name":"Search Labs, Microsoft Research"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan","family":"Halverson","sequence":"additional","affiliation":[{"name":"Search Labs, Microsoft Research"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samuel","family":"Ieong","sequence":"additional","affiliation":[{"name":"Search Labs, Microsoft Research"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2009,2,9]]},"reference":[{"key":"e_1_3_2_1_1_1","first-page":"1","volume-title":"WWW","author":"Achan Kannan","year":"2008","unstructured":"Kannan Achan , Ariel Fuxman , Panayiotis Tsaparas , and Rakesh Agrawal . Using the wisdom of the crowds for keyword generation . In WWW , pages 1 -- 8 , 2008 . Kannan Achan, Ariel Fuxman, Panayiotis Tsaparas, and Rakesh Agrawal. Using the wisdom of the crowds for keyword generation. In WWW, pages 1--8, 2008."},{"key":"e_1_3_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/1060745.1060784"},{"key":"e_1_3_2_1_3_1","volume-title":"Information retrieval: A sequential learning process. Journal of the American Society for Information Sciences (ASIS), 34(5):331--342","author":"Bookstein A.","year":"1983","unstructured":"A. Bookstein . Information retrieval: A sequential learning process. Journal of the American Society for Information Sciences (ASIS), 34(5):331--342 , 1983 . A. Bookstein. Information retrieval: A sequential learning process. Journal of the American Society for Information Sciences (ASIS), 34(5):331--342, 1983."},{"key":"e_1_3_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0306-4573(82)90033-4"},{"key":"e_1_3_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/290941.291025"},{"key":"e_1_3_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1145\/1148170.1148245"},{"key":"e_1_3_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/1390334.1390446"},{"key":"e_1_3_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0020-0271(64)90006-3"},{"key":"e_1_3_2_1_9_1","volume-title":"Approximation Algorithms for NP-Hard problems","author":"Hochbaum Dorit","year":"1999","unstructured":"Dorit Hochbaum , editor. Approximation Algorithms for NP-Hard problems . Springer , 1999 . Dorit Hochbaum, editor. Approximation Algorithms for NP-Hard problems. Springer, 1999."},{"key":"e_1_3_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1145\/345508.345545"},{"key":"e_1_3_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.5555\/1394399"},{"key":"e_1_3_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01588971"},{"key":"e_1_3_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1145\/1390156.1390255"},{"key":"e_1_3_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1145\/1148170.1148320"},{"key":"e_1_3_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICDE.2008.4497431"},{"key":"e_1_3_2_1_16_1","volume-title":"TREC","author":"Voorhees E. M.","year":"2004","unstructured":"E. M. Voorhees . Overview of the trec 2004 robust retrieval track . In TREC , 2004 . E. M. Voorhees. Overview of the trec 2004 robust retrieval track. In TREC, 2004."},{"key":"e_1_3_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/asi.v59:2"},{"key":"e_1_3_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1145\/860435.860440"},{"key":"e_1_3_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ipm.2004.11.003"},{"key":"e_1_3_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1145\/1060745.1060754"}],"event":{"name":"WSDM'09: Second ACM International Conference on Web Search and Web Data Mining","location":"Barcelona Spain","acronym":"WSDM'09","sponsor":["SIGMOD ACM Special Interest Group on Management of Data","SIGWEB ACM Special Interest Group on Hypertext, Hypermedia, and Web","Yahoo! Research","SIGKDD ACM Special Interest Group on Knowledge Discovery in Data","Nokia","Google Inc.","SIGIR ACM Special Interest Group on Information Retrieval","Microsoft Microsoft"]},"container-title":["Proceedings of the Second ACM International Conference on Web Search and Data Mining"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1498759.1498766","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/1498759.1498766","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T13:38:38Z","timestamp":1750253918000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1498759.1498766"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,2,9]]},"references-count":20,"alternative-id":["10.1145\/1498759.1498766","10.1145\/1498759"],"URL":"https:\/\/doi.org\/10.1145\/1498759.1498766","relation":{},"subject":[],"published":{"date-parts":[[2009,2,9]]},"assertion":[{"value":"2009-02-09","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}