{"id":"https://openalex.org/W2150278206","doi":"https://doi.org/10.1145/2396761.2396769","title":"Dynamic covering for recommendation systems","display_name":"Dynamic covering for recommendation systems","publication_year":2012,"publication_date":"2012-10-29","ids":{"openalex":"https://openalex.org/W2150278206","doi":"https://doi.org/10.1145/2396761.2396769","mag":"2150278206"},"language":"en","primary_location":{"id":"doi:10.1145/2396761.2396769","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2396761.2396769","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st ACM international conference on Information and knowledge management","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5003694636","display_name":"Ioannis Antonellis","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Ioannis Antonellis","raw_affiliation_strings":["oDesk, Mountain View, CA, USA"],"affiliations":[{"raw_affiliation_string":"oDesk, Mountain View, CA, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114259175","display_name":"Anish Das Sarma","orcid":null},"institutions":[{"id":"https://openalex.org/I1291425158","display_name":"Google (United States)","ror":"https://ror.org/00njsd438","country_code":"US","type":"company","lineage":["https://openalex.org/I1291425158","https://openalex.org/I4210128969"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Anish Das Sarma","raw_affiliation_strings":["Google, Mountain View, CA, USA"],"affiliations":[{"raw_affiliation_string":"Google, Mountain View, CA, USA","institution_ids":["https://openalex.org/I1291425158"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001275905","display_name":"Shaddin Dughmi","orcid":"https://orcid.org/0000-0002-2784-1868"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shaddin Dughmi","raw_affiliation_strings":["Microsoft Research, Redmond, WA, USA"],"affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5003694636"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.17059654,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"26","last_page":"34"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12288","display_name":"Optimization and Search Problems","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/oracle","display_name":"Oracle","score":0.7604244947433472},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6328227519989014},{"id":"https://openalex.org/keywords/integer","display_name":"Integer (computer science)","score":0.5922032594680786},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.5426810383796692},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.47371619939804077},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.46267813444137573},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.4409417510032654},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.377189576625824},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.32566481828689575},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.324170857667923},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.319661021232605},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.09133607149124146},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07775115966796875},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.07262316346168518}],"concepts":[{"id":"https://openalex.org/C55166926","wikidata":"https://www.wikidata.org/wiki/Q2892946","display_name":"Oracle","level":2,"score":0.7604244947433472},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6328227519989014},{"id":"https://openalex.org/C97137487","wikidata":"https://www.wikidata.org/wiki/Q729138","display_name":"Integer (computer science)","level":2,"score":0.5922032594680786},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.5426810383796692},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.47371619939804077},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.46267813444137573},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.4409417510032654},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.377189576625824},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.32566481828689575},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.324170857667923},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.319661021232605},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.09133607149124146},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07775115966796875},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.07262316346168518},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2396761.2396769","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2396761.2396769","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st ACM international conference on Information and knowledge management","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.711.1253","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.711.1253","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www-bcf.usc.edu/%7Eshaddin/papers/covering.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W112063162","https://openalex.org/W1499961453","https://openalex.org/W1680189815","https://openalex.org/W1747491441","https://openalex.org/W1860570137","https://openalex.org/W1965765215","https://openalex.org/W2012833704","https://openalex.org/W2021185572","https://openalex.org/W2037098674","https://openalex.org/W2045446569","https://openalex.org/W2068871408","https://openalex.org/W2083305840","https://openalex.org/W2124604144","https://openalex.org/W2171960770","https://openalex.org/W3138773240","https://openalex.org/W6723629830"],"related_works":["https://openalex.org/W2073713056","https://openalex.org/W3110702597","https://openalex.org/W2078761926","https://openalex.org/W2110441383","https://openalex.org/W2125620709","https://openalex.org/W1498872724","https://openalex.org/W4233149903","https://openalex.org/W4293864700","https://openalex.org/W2524540579","https://openalex.org/W2326878701"],"abstract_inverted_index":{"In":[0],"this":[1,143],"paper,":[2],"we":[3,10,83,123],"identify":[4],"a":[5,86,137,156,158],"fundamental":[6],"algorithmic":[7],"problem":[8,45],"that":[9,61,99],"term":[11],"succinct":[12],"dynamic":[13,148],"covering":[14],"(SDC),":[15],"arising":[16],"in":[17,30],"many":[18],"modern-day":[19],"web":[20],"applications,":[21],"including":[22],"ad-serving":[23],"and":[24,33,65,91,126,141],"online":[25],"recommendation":[26],"systems":[27],"such":[28,60,98,155],"as":[29,69,71,105,107,128,130],"eBay,":[31],"Netflix,":[32],"Amazon.":[34],"Roughly":[35],"speaking,":[36],"SDC":[37,78,135],"applies":[38],"two":[39,74],"restrictions":[40,75],"to":[41,95,115,134,145],"the":[42,119],"well-studied":[43],"Max-Coverage":[44],"[14]:":[46],"Given":[47],"an":[48],"integer":[49],"k,":[50],"X={1,2,...,n}and":[51],"I={S_1,...,S_m},":[52],"S_i":[53],"subseteq":[54,58,89],"X,":[55,90],"find":[56,96],"|J|":[57,62],"I,":[59],"<":[63],"k":[64],"(union_S_in_J":[66],"S)":[67,103],"is":[68,94,104],"large":[70,106],"possible.":[72],"The":[73],"applied":[76],"by":[77],"are:":[79],"(1)Dynamic:":[80],"At":[81],"query-time,":[82],"are":[84],"given":[85],"query":[87],"Q":[88,100],"our":[92],"goal":[93],"J":[97],"bigcap":[101],"(union_S_J":[102],"possible;":[108],"Space-constrained:":[109],"We":[110,153],"don't":[111],"have":[112,124],"enough":[113],"space":[114],"store":[116],"(and":[117],"process)":[118],"entire":[120],"input;":[121],"specifically,":[122],"o(mn),":[125],"maybe":[127],"little":[129],"O((m+n)polylog(mn))space.":[131],"A":[132],"solution":[133],"maintains":[136],"small":[138],"data":[139],"structure,":[140],"uses":[142],"datastructure":[144],"answer":[146],"most":[147],"queries":[149],"with":[150],"high":[151],"accuracy.":[152],"call":[154],"scheme":[157],"Coverage":[159],"Oracle.":[160]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":2}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
