{"id":"https://openalex.org/W1964294766","doi":"https://doi.org/10.1109/nabic.2011.6089628","title":"Personalized suggestions by means of Collaborative Filtering: A comparison of two different model-based techniques","display_name":"Personalized suggestions by means of Collaborative Filtering: A comparison of two different model-based techniques","publication_year":2011,"publication_date":"2011-10-01","ids":{"openalex":"https://openalex.org/W1964294766","doi":"https://doi.org/10.1109/nabic.2011.6089628","mag":"1964294766"},"language":"en","primary_location":{"id":"doi:10.1109/nabic.2011.6089628","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nabic.2011.6089628","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Third World Congress on Nature and Biologically Inspired Computing","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/A5076401249","display_name":"Cosimo Birtolo","orcid":"https://orcid.org/0000-0002-7057-3416"},"institutions":[{"id":"https://openalex.org/I4210161379","display_name":"Poste Italiane (Italy)","ror":"https://ror.org/05qtb1210","country_code":"IT","type":"company","lineage":["https://openalex.org/I4210161379"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Cosimo Birtolo","raw_affiliation_strings":["Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy"],"affiliations":[{"raw_affiliation_string":"Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]},{"raw_affiliation_string":"Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008323628","display_name":"Davide Ronca","orcid":null},"institutions":[{"id":"https://openalex.org/I4210161379","display_name":"Poste Italiane (Italy)","ror":"https://ror.org/05qtb1210","country_code":"IT","type":"company","lineage":["https://openalex.org/I4210161379"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Davide Ronca","raw_affiliation_strings":["Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy"],"affiliations":[{"raw_affiliation_string":"Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]},{"raw_affiliation_string":"Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040430319","display_name":"Roberto Armenise","orcid":null},"institutions":[{"id":"https://openalex.org/I4210161379","display_name":"Poste Italiane (Italy)","ror":"https://ror.org/05qtb1210","country_code":"IT","type":"company","lineage":["https://openalex.org/I4210161379"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Roberto Armenise","raw_affiliation_strings":["Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy"],"affiliations":[{"raw_affiliation_string":"Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]},{"raw_affiliation_string":"Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061675489","display_name":"Maria Ascione","orcid":null},"institutions":[{"id":"https://openalex.org/I4210161379","display_name":"Poste Italiane (Italy)","ror":"https://ror.org/05qtb1210","country_code":"IT","type":"company","lineage":["https://openalex.org/I4210161379"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Maria Ascione","raw_affiliation_strings":["Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy"],"affiliations":[{"raw_affiliation_string":"Poste Italiane S.p.A.-Tecnologie dell'Informazione, RS-Centro Ricerca e Sviluppo, Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]},{"raw_affiliation_string":"Poste Italiane S.p.A. - Tecnologie dell'Informazione RS - Centro Ricerca e Sviluppo - 80133 Napoli, Italy","institution_ids":["https://openalex.org/I4210161379"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5076401249"],"corresponding_institution_ids":["https://openalex.org/I4210161379"],"apc_list":null,"apc_paid":null,"fwci":5.9115,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.95706205,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"444","last_page":"450"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9998000264167786,"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":0.9998000264167786,"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/T12761","display_name":"Data Stream Mining Techniques","score":0.9625999927520752,"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"}},{"id":"https://openalex.org/T10637","display_name":"Advanced Clustering Algorithms Research","score":0.9577000141143799,"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/collaborative-filtering","display_name":"Collaborative filtering","score":0.9545139670372009},{"id":"https://openalex.org/keywords/movielens","display_name":"MovieLens","score":0.9525800347328186},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.8268120288848877},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8101431131362915},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.6973201036453247},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6580815315246582},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.5667553544044495},{"id":"https://openalex.org/keywords/fuzzy-logic","display_name":"Fuzzy logic","score":0.551487147808075},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.4541250765323639},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.42653992772102356},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4168175160884857},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3327191472053528},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.13669353723526},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.08111992478370667}],"concepts":[{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.9545139670372009},{"id":"https://openalex.org/C2776156558","wikidata":"https://www.wikidata.org/wiki/Q4353746","display_name":"MovieLens","level":4,"score":0.9525800347328186},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.8268120288848877},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8101431131362915},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.6973201036453247},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6580815315246582},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5667553544044495},{"id":"https://openalex.org/C58166","wikidata":"https://www.wikidata.org/wiki/Q224821","display_name":"Fuzzy logic","level":2,"score":0.551487147808075},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.4541250765323639},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.42653992772102356},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4168175160884857},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3327191472053528},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.13669353723526},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08111992478370667},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","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":1,"locations":[{"id":"doi:10.1109/nabic.2011.6089628","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nabic.2011.6089628","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Third World Congress on Nature and Biologically Inspired Computing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/17","score":0.41999998688697815,"display_name":"Partnerships for the goals"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W65738273","https://openalex.org/W1483397645","https://openalex.org/W1772033315","https://openalex.org/W1966553486","https://openalex.org/W1968278730","https://openalex.org/W1971040550","https://openalex.org/W2018597607","https://openalex.org/W2044068316","https://openalex.org/W2053677366","https://openalex.org/W2065439947","https://openalex.org/W2086121090","https://openalex.org/W2091067437","https://openalex.org/W2097584193","https://openalex.org/W2132939687","https://openalex.org/W2137185312","https://openalex.org/W2155106456","https://openalex.org/W2159094788","https://openalex.org/W2162161511","https://openalex.org/W2169020911","https://openalex.org/W2171960770","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2355698112","https://openalex.org/W2022984797","https://openalex.org/W4394818607","https://openalex.org/W2986679525","https://openalex.org/W2797500822","https://openalex.org/W2794458286","https://openalex.org/W4205822456","https://openalex.org/W4299358966","https://openalex.org/W2537367858","https://openalex.org/W4288082747"],"abstract_inverted_index":{"Recommendation":[0],"systems":[1],"are":[2],"commonly":[3],"used":[4],"for":[5,42,118],"suggesting":[6],"products":[7],"or":[8,71],"services.":[9],"Among":[10],"different":[11],"existing":[12],"techniques,":[13],"Model-Based":[14],"Collaborative":[15,43,49],"Filtering":[16,44,50],"(MBCF)":[17],"approaches":[18],"have":[19,55,61],"been":[20,56],"proven":[21,62],"to":[22,66,82,114],"address":[23],"scalability":[24],"and":[25,45,109],"cold-starting":[26],"problems":[27],"that":[28,63],"often":[29],"arise.":[30],"In":[31],"this":[32],"paper":[33],"we":[34],"investigate":[35],"two":[36,53,92,103],"MBCF":[37],"algorithms:":[38],"Self-Organizing":[39],"Maps":[40],"(SOM)":[41],"Item-based":[46],"Fuzzy":[47],"Clustering":[48],"(IFCCF).":[51],"These":[52],"techniques":[54,93,104],"selected":[57],"because":[58],"preliminary":[59],"results":[60],"when":[64],"applied":[65],"the":[67,73,76,83,122],"clustering":[68],"of":[69,75,90,107],"users":[70],"items":[72],"quality":[74],"recommendation":[77,86],"system":[78],"increases":[79],"with":[80],"respect":[81],"k-means.":[84],"Within":[85],"systems,":[87],"no":[88],"comparison":[89],"these":[91,102],"exists.":[94],"Therefore,":[95],"our":[96],"experimentation":[97],"is":[98],"aimed":[99],"at":[100],"comparing":[101],"by":[105],"means":[106],"MovieLens":[108],"Jester":[110],"dataset":[111],"in":[112,121],"order":[113],"provide":[115],"a":[116],"guideline":[117],"their":[119],"implementation":[120],"e-Commerce":[123],"domain.":[124]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}