{"id":"https://openalex.org/W2025815760","doi":"https://doi.org/10.1145/1988688.1988758","title":"Optimal recommender systems blending","display_name":"Optimal recommender systems blending","publication_year":2011,"publication_date":"2011-05-25","ids":{"openalex":"https://openalex.org/W2025815760","doi":"https://doi.org/10.1145/1988688.1988758","mag":"2025815760"},"language":"en","primary_location":{"id":"doi:10.1145/1988688.1988758","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1988688.1988758","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Conference on Web Intelligence, Mining and Semantics","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/A5057738246","display_name":"Fabio Roda","orcid":null},"institutions":[{"id":"https://openalex.org/I142476485","display_name":"\u00c9cole Polytechnique","ror":"https://ror.org/05hy3tk52","country_code":"FR","type":"education","lineage":["https://openalex.org/I142476485","https://openalex.org/I4210145102"]},{"id":"https://openalex.org/I4210139461","display_name":"Laboratoire d'Informatique de l'\u00c9cole Polytechnique","ror":"https://ror.org/04afed728","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I142476485","https://openalex.org/I4210139461","https://openalex.org/I4210145102","https://openalex.org/I4210159245"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"Fabio Roda","raw_affiliation_strings":["LIX, \u00c9cole Polytechnique, Palaiseau, France","(LIX, Ecole Polytechnique, Palaiseau, France)"],"affiliations":[{"raw_affiliation_string":"LIX, \u00c9cole Polytechnique, Palaiseau, France","institution_ids":["https://openalex.org/I4210139461"]},{"raw_affiliation_string":"(LIX, Ecole Polytechnique, Palaiseau, France)","institution_ids":["https://openalex.org/I142476485"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030963458","display_name":"Alberto Costa","orcid":"https://orcid.org/0000-0002-1308-8510"},"institutions":[{"id":"https://openalex.org/I142476485","display_name":"\u00c9cole Polytechnique","ror":"https://ror.org/05hy3tk52","country_code":"FR","type":"education","lineage":["https://openalex.org/I142476485","https://openalex.org/I4210145102"]},{"id":"https://openalex.org/I4210139461","display_name":"Laboratoire d'Informatique de l'\u00c9cole Polytechnique","ror":"https://ror.org/04afed728","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I142476485","https://openalex.org/I4210139461","https://openalex.org/I4210145102","https://openalex.org/I4210159245"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Alberto Costa","raw_affiliation_strings":["LIX, \u00c9cole Polytechnique, Palaiseau, France","(LIX, Ecole Polytechnique, Palaiseau, France)"],"affiliations":[{"raw_affiliation_string":"LIX, \u00c9cole Polytechnique, Palaiseau, France","institution_ids":["https://openalex.org/I4210139461"]},{"raw_affiliation_string":"(LIX, Ecole Polytechnique, Palaiseau, France)","institution_ids":["https://openalex.org/I142476485"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046138085","display_name":"Leo Liberti","orcid":"https://orcid.org/0000-0003-3139-6821"},"institutions":[{"id":"https://openalex.org/I4210139461","display_name":"Laboratoire d'Informatique de l'\u00c9cole Polytechnique","ror":"https://ror.org/04afed728","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I1326498283","https://openalex.org/I142476485","https://openalex.org/I4210139461","https://openalex.org/I4210145102","https://openalex.org/I4210159245"]},{"id":"https://openalex.org/I142476485","display_name":"\u00c9cole Polytechnique","ror":"https://ror.org/05hy3tk52","country_code":"FR","type":"education","lineage":["https://openalex.org/I142476485","https://openalex.org/I4210145102"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Leo Liberti","raw_affiliation_strings":["LIX, \u00c9cole Polytechnique, Palaiseau, France","(LIX, Ecole Polytechnique, Palaiseau, France)"],"affiliations":[{"raw_affiliation_string":"LIX, \u00c9cole Polytechnique, Palaiseau, France","institution_ids":["https://openalex.org/I4210139461"]},{"raw_affiliation_string":"(LIX, Ecole Polytechnique, Palaiseau, France)","institution_ids":["https://openalex.org/I142476485"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5057738246"],"corresponding_institution_ids":["https://openalex.org/I142476485","https://openalex.org/I4210139461"],"apc_list":null,"apc_paid":null,"fwci":0.4097,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.66820667,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12101","display_name":"Advanced Bandit Algorithms Research","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12101","display_name":"Advanced Bandit Algorithms Research","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10551","display_name":"Scheduling and Optimization Algorithms","score":0.9894000291824341,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.8680728673934937},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.830357015132904},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.5896462202072144},{"id":"https://openalex.org/keywords/field","display_name":"Field (mathematics)","score":0.5825290679931641},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.4929385185241699},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.4613371789455414},{"id":"https://openalex.org/keywords/mixing","display_name":"Mixing (physics)","score":0.4411458373069763},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3988332748413086},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3766961097717285},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.33027923107147217},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09225121140480042}],"concepts":[{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.8680728673934937},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.830357015132904},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.5896462202072144},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.5825290679931641},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.4929385185241699},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.4613371789455414},{"id":"https://openalex.org/C138777275","wikidata":"https://www.wikidata.org/wiki/Q6884054","display_name":"Mixing (physics)","level":2,"score":0.4411458373069763},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3988332748413086},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3766961097717285},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.33027923107147217},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09225121140480042},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"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/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1988688.1988758","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1988688.1988758","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Conference on Web Intelligence, Mining and Semantics","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W51788365","https://openalex.org/W133898461","https://openalex.org/W178169250","https://openalex.org/W1966553486","https://openalex.org/W2001741445","https://openalex.org/W2042281163","https://openalex.org/W2049670925","https://openalex.org/W2110325612","https://openalex.org/W2124591829","https://openalex.org/W2152208379","https://openalex.org/W2171960770","https://openalex.org/W2950332743"],"related_works":["https://openalex.org/W4390273403","https://openalex.org/W4386781444","https://openalex.org/W2150182025","https://openalex.org/W3092950680","https://openalex.org/W3197542405","https://openalex.org/W2056712470","https://openalex.org/W3125580266","https://openalex.org/W4317039510","https://openalex.org/W4238861846","https://openalex.org/W790944756"],"abstract_inverted_index":{"In":[0],"the":[1,15,50,60],"Recommender":[2],"Systems":[3],"field":[4],"ensemble":[5],"techniques":[6,55],"gain":[7],"growing":[8],"interest.":[9],"This":[10],"approach":[11],"is":[12,34],"based":[13],"on":[14],"idea":[16],"of":[17,29,46,52,62],"mixing":[18],"many":[19],"recommenders":[20],"and":[21,65],"to":[22,58,66,85],"get":[23],"an":[24],"average":[25],"prediction":[26],"from":[27,42],"all":[28],"them.":[30],"Even":[31],"if":[32],"it":[33],"useful":[35],"this":[36,72],"process":[37],"may":[38],"be":[39,75],"very":[40],"expensive":[41],"a":[43,80],"computational":[44],"point":[45],"view.":[47],"We":[48,69],"propose":[49],"use":[51],"Operations":[53],"Research":[54],"in":[56],"order":[57],"optimize":[59],"balance":[61],"different":[63],"predictors":[64],"accelerate":[67],"it.":[68],"show":[70],"that":[71],"problem":[73],"can":[74],"generalized,":[76],"thus":[77],"we":[78],"provide":[79],"mathematical":[81],"framework":[82],"which":[83],"helps":[84],"find":[86],"further":[87],"improvements.":[88]},"counts_by_year":[{"year":2017,"cited_by_count":2},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}