{"id":"https://openalex.org/W1971347853","doi":"https://doi.org/10.1145/2499178.2499186","title":"Understanding Similarity Metrics in Neighbour-based Recommender Systems","display_name":"Understanding Similarity Metrics in Neighbour-based Recommender Systems","publication_year":2013,"publication_date":"2013-09-29","ids":{"openalex":"https://openalex.org/W1971347853","doi":"https://doi.org/10.1145/2499178.2499186","mag":"1971347853"},"language":"en","primary_location":{"id":"doi:10.1145/2499178.2499186","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2499178.2499186","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2013 Conference on the Theory of Information Retrieval","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://ir.cwi.nl/pub/22021/22021B.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5029757626","display_name":"Alejandro Bellog\u00edn","orcid":"https://orcid.org/0000-0001-6368-2510"},"institutions":[{"id":"https://openalex.org/I1341640284","display_name":"Centrum Wiskunde & Informatica","ror":"https://ror.org/00x7ekv49","country_code":"NL","type":"facility","lineage":["https://openalex.org/I1341640284","https://openalex.org/I2800991832"]}],"countries":["NL"],"is_corresponding":true,"raw_author_name":"Alejandro Bellog\u00edn","raw_affiliation_strings":["Information Access, Centrum Wiskunde &amp; Informatica, Science Park 123, 1098 XG Amsterdam, The Netherlands"],"affiliations":[{"raw_affiliation_string":"Information Access, Centrum Wiskunde &amp; Informatica, Science Park 123, 1098 XG Amsterdam, The Netherlands","institution_ids":["https://openalex.org/I1341640284"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060259737","display_name":"Arjen P. de Vries","orcid":"https://orcid.org/0000-0002-2888-4202"},"institutions":[{"id":"https://openalex.org/I1341640284","display_name":"Centrum Wiskunde & Informatica","ror":"https://ror.org/00x7ekv49","country_code":"NL","type":"facility","lineage":["https://openalex.org/I1341640284","https://openalex.org/I2800991832"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Arjen P. de Vries","raw_affiliation_strings":["Information Access, Centrum Wiskunde &amp; Informatica, Science Park 123, 1098 XG Amsterdam, The Netherlands"],"affiliations":[{"raw_affiliation_string":"Information Access, Centrum Wiskunde &amp; Informatica, Science Park 123, 1098 XG Amsterdam, The Netherlands","institution_ids":["https://openalex.org/I1341640284"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5029757626"],"corresponding_institution_ids":["https://openalex.org/I1341640284"],"apc_list":null,"apc_paid":null,"fwci":5.0134,"has_fulltext":true,"cited_by_count":17,"citation_normalized_percentile":{"value":0.9497268,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"48","last_page":"55"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":1.0,"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.972599983215332,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11439","display_name":"Video Analysis and Summarization","score":0.9724000096321106,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/collaborative-filtering","display_name":"Collaborative filtering","score":0.754392147064209},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7330588102340698},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.6842922568321228},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.6807509660720825},{"id":"https://openalex.org/keywords/nearest-neighbour","display_name":"Nearest neighbour","score":0.6504510045051575},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.5394251346588135},{"id":"https://openalex.org/keywords/metric","display_name":"Metric (unit)","score":0.507675051689148},{"id":"https://openalex.org/keywords/neighbourhood","display_name":"Neighbourhood (mathematics)","score":0.49354326725006104},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.4477960765361786},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.420353502035141},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3558155596256256},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3500162363052368},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.20662987232208252},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19769543409347534}],"concepts":[{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.754392147064209},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7330588102340698},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.6842922568321228},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.6807509660720825},{"id":"https://openalex.org/C2983946233","wikidata":"https://www.wikidata.org/wiki/Q4088109","display_name":"Nearest neighbour","level":2,"score":0.6504510045051575},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5394251346588135},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.507675051689148},{"id":"https://openalex.org/C161677786","wikidata":"https://www.wikidata.org/wiki/Q2478475","display_name":"Neighbourhood (mathematics)","level":2,"score":0.49354326725006104},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4477960765361786},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.420353502035141},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3558155596256256},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3500162363052368},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.20662987232208252},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19769543409347534},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2499178.2499186","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2499178.2499186","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2013 Conference on the Theory of Information Retrieval","raw_type":"proceedings-article"},{"id":"pmh:oai:cwi.nl:22021","is_oa":true,"landing_page_url":"https://ir.cwi.nl/pub/22021","pdf_url":"https://ir.cwi.nl/pub/22021/22021B.pdf","source":{"id":"https://openalex.org/S7407055335","display_name":"Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:cwi.nl:22021","is_oa":true,"landing_page_url":"https://ir.cwi.nl/pub/22021","pdf_url":"https://ir.cwi.nl/pub/22021/22021B.pdf","source":{"id":"https://openalex.org/S7407055335","display_name":"Centrum Wiskunde & Informatica (CWI), the national research institute for mathematics and computer science in the Netherlands","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.550000011920929}],"awards":[{"id":"https://openalex.org/G203883500","display_name":"Alain Bensoussan Career Development Enhancer","funder_award_id":"246016","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G3829048491","display_name":null,"funder_award_id":"FP7/2007-2013","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G5593277320","display_name":null,"funder_award_id":"2007-2013","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G5702163051","display_name":null,"funder_award_id":"FP7/2007","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G6892950045","display_name":null,"funder_award_id":"FP7/2007-2013","funder_id":"https://openalex.org/F4320320885","funder_display_name":"European Research Consortium for Informatics and Mathematics"},{"id":"https://openalex.org/G8589669012","display_name":null,"funder_award_id":"246016","funder_id":"https://openalex.org/F4320320885","funder_display_name":"European Research Consortium for Informatics and Mathematics"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320320885","display_name":"European Research Consortium for Informatics and Mathematics","ror":"https://ror.org/055zrhj18"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1971347853.pdf","grobid_xml":"https://content.openalex.org/works/W1971347853.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W33545262","https://openalex.org/W1488971269","https://openalex.org/W1536019158","https://openalex.org/W1593554641","https://openalex.org/W1595303882","https://openalex.org/W1672197616","https://openalex.org/W1966553486","https://openalex.org/W1973812756","https://openalex.org/W1980202081","https://openalex.org/W1994389483","https://openalex.org/W2034048675","https://openalex.org/W2054675234","https://openalex.org/W2072596762","https://openalex.org/W2079168273","https://openalex.org/W2080377578","https://openalex.org/W2082359527","https://openalex.org/W2085937320","https://openalex.org/W2096290331","https://openalex.org/W2096762662","https://openalex.org/W2110325612","https://openalex.org/W2112090702","https://openalex.org/W2117281615","https://openalex.org/W2121710227","https://openalex.org/W2124591829","https://openalex.org/W2142385580","https://openalex.org/W2146691053","https://openalex.org/W2146985866","https://openalex.org/W2155106456","https://openalex.org/W2171960770","https://openalex.org/W2615582461","https://openalex.org/W2742161170","https://openalex.org/W4232980324","https://openalex.org/W4244404635"],"related_works":["https://openalex.org/W2348159088","https://openalex.org/W2778446292","https://openalex.org/W2893089803","https://openalex.org/W2067738930","https://openalex.org/W1969932894","https://openalex.org/W2056472980","https://openalex.org/W1559600655","https://openalex.org/W88463392","https://openalex.org/W2090611133","https://openalex.org/W2161485269"],"abstract_inverted_index":{"Neighbour-based":[0],"collaborative":[1],"filtering":[2],"is":[3],"a":[4,65,80,92,110],"recommendation":[5],"technique":[6],"that":[7,45,96],"provides":[8],"meaningful":[9],"and,":[10,79],"usually,":[11],"accurate":[12],"recommendations.":[13],"The":[14],"method's":[15],"success":[16],"depends":[17],"however":[18],"critically":[19],"upon":[20],"the":[21,27,32,35,73,77,85,106],"similarity":[22,52],"metric":[23],"used":[24],"to":[25,47,103,109],"find":[26],"most":[28],"similar":[29],"users":[30],"(neighbours),":[31],"basis":[33],"of":[34,63,98],"predictions":[36],"made.":[37],"In":[38],"this":[39],"paper,":[40],"we":[41,59],"explore":[42],"twelve":[43],"features":[44,100],"aim":[46],"explain":[48],"why":[49],"some":[50,97],"user":[51],"metrics":[53],"perform":[54],"better":[55],"than":[56],"others.":[57],"Specifically,":[58],"define":[60],"two":[61],"sets":[62],"features,":[64],"first":[66],"one":[67,82],"based":[68,83],"on":[69,84],"statistics":[70],"computed":[71],"over":[72],"distance":[74],"distribution":[75],"in":[76],"neighbourhood,":[78],"second":[81],"nearest":[86],"neighbour":[87],"graph.":[88],"Our":[89],"experiments":[90],"with":[91,105],"public":[93],"dataset":[94],"show":[95],"these":[99],"are":[101],"able":[102],"correlate":[104],"performance":[107],"up":[108],"90%.":[111]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2016-06-24T00:00:00"}
