{"id":"https://openalex.org/W4399041670","doi":"https://doi.org/10.3390/bdcc8060053","title":"Exploiting Rating Prediction Certainty for Recommendation Formulation in Collaborative Filtering","display_name":"Exploiting Rating Prediction Certainty for Recommendation Formulation in Collaborative Filtering","publication_year":2024,"publication_date":"2024-05-27","ids":{"openalex":"https://openalex.org/W4399041670","doi":"https://doi.org/10.3390/bdcc8060053"},"language":"en","primary_location":{"id":"doi:10.3390/bdcc8060053","is_oa":true,"landing_page_url":"https://doi.org/10.3390/bdcc8060053","pdf_url":"https://www.mdpi.com/2504-2289/8/6/53/pdf?version=1716797498","source":{"id":"https://openalex.org/S4210238752","display_name":"Big Data and Cognitive Computing","issn_l":"2504-2289","issn":["2504-2289"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Big Data and Cognitive Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2504-2289/8/6/53/pdf?version=1716797498","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5070417213","display_name":"Dionisis Margaris","orcid":"https://orcid.org/0000-0002-7487-374X"},"institutions":[{"id":"https://openalex.org/I158716096","display_name":"University of Peloponnese","ror":"https://ror.org/04d4d3c02","country_code":"GR","type":"education","lineage":["https://openalex.org/I158716096"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Dionisis Margaris","raw_affiliation_strings":["Department of Digital Systems, University of the Peloponnese, Kladas, 231 00 Sparta, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Digital Systems, University of the Peloponnese, Kladas, 231 00 Sparta, Greece","institution_ids":["https://openalex.org/I158716096"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5093308169","display_name":"Kiriakos Sgardelis","orcid":null},"institutions":[{"id":"https://openalex.org/I158716096","display_name":"University of Peloponnese","ror":"https://ror.org/04d4d3c02","country_code":"GR","type":"education","lineage":["https://openalex.org/I158716096"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Kiriakos Sgardelis","raw_affiliation_strings":["Department of Digital Systems, University of the Peloponnese, Kladas, 231 00 Sparta, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Digital Systems, University of the Peloponnese, Kladas, 231 00 Sparta, Greece","institution_ids":["https://openalex.org/I158716096"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034227751","display_name":"Dimitris Spiliotopoulos","orcid":"https://orcid.org/0000-0003-3646-1362"},"institutions":[{"id":"https://openalex.org/I158716096","display_name":"University of Peloponnese","ror":"https://ror.org/04d4d3c02","country_code":"GR","type":"education","lineage":["https://openalex.org/I158716096"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Dimitris Spiliotopoulos","raw_affiliation_strings":["Department of Management Science and Technology, University of the Peloponnese, Thesi Sechi, 221 31 Tripoli, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Management Science and Technology, University of the Peloponnese, Thesi Sechi, 221 31 Tripoli, Greece","institution_ids":["https://openalex.org/I158716096"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089364392","display_name":"Costas Vassilakis","orcid":"https://orcid.org/0000-0001-9940-1821"},"institutions":[{"id":"https://openalex.org/I158716096","display_name":"University of Peloponnese","ror":"https://ror.org/04d4d3c02","country_code":"GR","type":"education","lineage":["https://openalex.org/I158716096"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Costas Vassilakis","raw_affiliation_strings":["Department of Informatics and Telecommunications, University of the Peloponnese, Akadimaikou G. K. Vlachou, 221 31 Tripoli, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Informatics and Telecommunications, University of the Peloponnese, Akadimaikou G. K. Vlachou, 221 31 Tripoli, Greece","institution_ids":["https://openalex.org/I158716096"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5070417213"],"corresponding_institution_ids":["https://openalex.org/I158716096"],"apc_list":{"value":1400,"currency":"CHF","value_usd":1515},"apc_paid":{"value":1400,"currency":"CHF","value_usd":1515},"fwci":3.8971,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.93958952,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"8","issue":"6","first_page":"53","last_page":"53"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9879999756813049,"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/T12101","display_name":"Advanced Bandit Algorithms Research","score":0.9786999821662903,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.8041591048240662},{"id":"https://openalex.org/keywords/certainty","display_name":"Certainty","score":0.7755906581878662},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5366605520248413},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.4886477589607239},{"id":"https://openalex.org/keywords/rating-system","display_name":"Rating system","score":0.4386419653892517},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.42935341596603394},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.36194664239883423},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2551819384098053},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.07351410388946533}],"concepts":[{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.8041591048240662},{"id":"https://openalex.org/C7493553","wikidata":"https://www.wikidata.org/wiki/Q1520777","display_name":"Certainty","level":2,"score":0.7755906581878662},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5366605520248413},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.4886477589607239},{"id":"https://openalex.org/C2988118254","wikidata":"https://www.wikidata.org/wiki/Q16881889","display_name":"Rating system","level":2,"score":0.4386419653892517},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.42935341596603394},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.36194664239883423},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2551819384098053},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.07351410388946533},{"id":"https://openalex.org/C134560507","wikidata":"https://www.wikidata.org/wiki/Q753291","display_name":"Environmental economics","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":3,"locations":[{"id":"doi:10.3390/bdcc8060053","is_oa":true,"landing_page_url":"https://doi.org/10.3390/bdcc8060053","pdf_url":"https://www.mdpi.com/2504-2289/8/6/53/pdf?version=1716797498","source":{"id":"https://openalex.org/S4210238752","display_name":"Big Data and Cognitive Computing","issn_l":"2504-2289","issn":["2504-2289"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Big Data and Cognitive Computing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:fb1245dcd1214b2b8f417364071bcd9c","is_oa":true,"landing_page_url":"https://doaj.org/article/fb1245dcd1214b2b8f417364071bcd9c","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Big Data and Cognitive Computing, Vol 8, Iss 6, p 53 (2024)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2504-2289/8/6/53/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/bdcc8060053","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Big Data and Cognitive Computing","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/bdcc8060053","is_oa":true,"landing_page_url":"https://doi.org/10.3390/bdcc8060053","pdf_url":"https://www.mdpi.com/2504-2289/8/6/53/pdf?version=1716797498","source":{"id":"https://openalex.org/S4210238752","display_name":"Big Data and Cognitive Computing","issn_l":"2504-2289","issn":["2504-2289"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Big Data and Cognitive Computing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4399041670.pdf"},"referenced_works_count":80,"referenced_works":["https://openalex.org/W179787377","https://openalex.org/W316198870","https://openalex.org/W2054141820","https://openalex.org/W2067415772","https://openalex.org/W2081180521","https://openalex.org/W2231571400","https://openalex.org/W2387490407","https://openalex.org/W2509678028","https://openalex.org/W2521812234","https://openalex.org/W2533518312","https://openalex.org/W2741124718","https://openalex.org/W2743114144","https://openalex.org/W2753177671","https://openalex.org/W2757344433","https://openalex.org/W2783463464","https://openalex.org/W2811035854","https://openalex.org/W2885907941","https://openalex.org/W2896303338","https://openalex.org/W2902308725","https://openalex.org/W2904983307","https://openalex.org/W2921551312","https://openalex.org/W2937054116","https://openalex.org/W2962992837","https://openalex.org/W2965684898","https://openalex.org/W2969915818","https://openalex.org/W2979481854","https://openalex.org/W2987217585","https://openalex.org/W2990987115","https://openalex.org/W3001189243","https://openalex.org/W3002169615","https://openalex.org/W3007631731","https://openalex.org/W3008288562","https://openalex.org/W3008967208","https://openalex.org/W3014683405","https://openalex.org/W3032315305","https://openalex.org/W3032603760","https://openalex.org/W3033901153","https://openalex.org/W3033949471","https://openalex.org/W3035059451","https://openalex.org/W3036389516","https://openalex.org/W3036891019","https://openalex.org/W3039600812","https://openalex.org/W3040731011","https://openalex.org/W3042722680","https://openalex.org/W3045200674","https://openalex.org/W3047308707","https://openalex.org/W3082464127","https://openalex.org/W3092727413","https://openalex.org/W3093667900","https://openalex.org/W3094317675","https://openalex.org/W3096677679","https://openalex.org/W3126805253","https://openalex.org/W3127053914","https://openalex.org/W3138731621","https://openalex.org/W3141039006","https://openalex.org/W3153436225","https://openalex.org/W3156556650","https://openalex.org/W3156861396","https://openalex.org/W3169993953","https://openalex.org/W3183141536","https://openalex.org/W3200718722","https://openalex.org/W3201530384","https://openalex.org/W3206310679","https://openalex.org/W4220733346","https://openalex.org/W4220905352","https://openalex.org/W4226141415","https://openalex.org/W4253760012","https://openalex.org/W4282967817","https://openalex.org/W4295538050","https://openalex.org/W4310725593","https://openalex.org/W4312125456","https://openalex.org/W4319297029","https://openalex.org/W4321109316","https://openalex.org/W4323060123","https://openalex.org/W4360844201","https://openalex.org/W4378908829","https://openalex.org/W4384662602","https://openalex.org/W6760344678","https://openalex.org/W6801743400","https://openalex.org/W6810222816"],"related_works":["https://openalex.org/W2772628444","https://openalex.org/W1484355083","https://openalex.org/W4220714703","https://openalex.org/W2098758514","https://openalex.org/W2735929803","https://openalex.org/W3008845055","https://openalex.org/W2170391450","https://openalex.org/W4376854386","https://openalex.org/W2202724490","https://openalex.org/W2508671622"],"abstract_inverted_index":{"Collaborative":[0],"filtering":[1],"is":[2,142,149],"a":[3,64,80,114,156,174],"popular":[4],"recommender":[5],"system":[6],"(RecSys)":[7],"method":[8],"that":[9,20,33,66,82,117,147,162,172],"produces":[10],"rating":[11,121,133,186],"prediction":[12,37,47,122,126,134,159,163],"values":[13,38,123],"for":[14],"products":[15,32],"by":[16],"combining":[17],"the":[18,27,31,35,42,54,67,83,98,101,120,125,145,194,200],"ratings":[19],"close":[21],"users":[22],"have":[23],"already":[24],"given":[25],"to":[26,41,60,78,92,151,165],"same":[28],"products.":[29],"Afterwards,":[30],"achieve":[34],"highest":[36],"are":[39],"recommended":[40],"user.":[43],"However,":[44],"as":[45],"expected,":[46],"estimation":[48],"may":[49],"contain":[50],"errors,":[51],"which,":[52],"in":[53,97,136,191],"case":[55],"of":[56,178,199],"RecSys,":[57],"will":[58],"lead":[59],"either":[61],"not":[62,86],"recommending":[63,79],"product":[65,81],"user":[68,84],"would":[69,85,103],"actually":[70],"like":[71],"(i.e.,":[72],"purchase,":[73],"watch,":[74],"or":[75,77],"listen)":[76],"like,":[87],"with":[88,132,155],"both":[89,119],"cases":[90],"leading":[91],"degraded":[93],"recommendation":[94,115,195],"quality.":[95],"Especially":[96],"latter":[99],"case,":[100],"RecSys":[102],"be":[104,166],"deemed":[105],"unreliable.":[106],"In":[107],"this":[108],"work,":[109],"we":[110],"design":[111],"and":[112,124,168,197],"develop":[113],"algorithm":[116,141,183],"considers":[118],"confidence,":[127],"derived":[128],"from":[129,188],"features":[130],"associated":[131],"accuracy":[135],"collaborative":[137],"filtering.":[138],"The":[139,181],"presented":[140],"based":[143],"on":[144],"rationale":[146],"it":[148],"preferable":[150],"recommend":[152],"an":[153],"item":[154],"slightly":[157],"lower":[158,179],"value,":[160],"if":[161],"seems":[164],"certain":[167],"safe,":[169],"over":[170],"another":[171],"has":[173],"higher":[175],"value":[176],"but":[177],"certainty.":[180],"proposed":[182],"prevents":[184],"low-confidence":[185],"predictions":[187],"being":[189],"included":[190],"recommendations,":[192],"ensuring":[193],"quality":[196],"reliability":[198],"RecSys.":[201]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
