{"id":"https://openalex.org/W2971476349","doi":"https://doi.org/10.23919/spects.2019.8823538","title":"The effect of global and local influence models on the quality of recommendations","display_name":"The effect of global and local influence models on the quality of recommendations","publication_year":2019,"publication_date":"2019-07-01","ids":{"openalex":"https://openalex.org/W2971476349","doi":"https://doi.org/10.23919/spects.2019.8823538","mag":"2971476349"},"language":"en","primary_location":{"id":"doi:10.23919/spects.2019.8823538","is_oa":false,"landing_page_url":"https://doi.org/10.23919/spects.2019.8823538","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS)","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/A5051146986","display_name":"Nikolaos Mantas","orcid":"https://orcid.org/0000-0001-7908-5497"},"institutions":[{"id":"https://openalex.org/I89506807","display_name":"University of Western Macedonia","ror":"https://ror.org/00a5pe906","country_code":"GR","type":"education","lineage":["https://openalex.org/I89506807"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Nikolaos Mantas","raw_affiliation_strings":["Informatics and Telecommunications Engineering School of Engineering University of Western Macedonia, Kozani, Greece"],"affiliations":[{"raw_affiliation_string":"Informatics and Telecommunications Engineering School of Engineering University of Western Macedonia, Kozani, Greece","institution_ids":["https://openalex.org/I89506807"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039269402","display_name":"Malamati Louta","orcid":"https://orcid.org/0009-0005-2283-7383"},"institutions":[{"id":"https://openalex.org/I89506807","display_name":"University of Western Macedonia","ror":"https://ror.org/00a5pe906","country_code":"GR","type":"education","lineage":["https://openalex.org/I89506807"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Malamati Louta","raw_affiliation_strings":["Informatics and Telecommunications Engineering School of Engineering University of Western Macedonia, Kozani, Greece"],"affiliations":[{"raw_affiliation_string":"Informatics and Telecommunications Engineering School of Engineering University of Western Macedonia, Kozani, Greece","institution_ids":["https://openalex.org/I89506807"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083435293","display_name":"Magdalini Eirinaki","orcid":"https://orcid.org/0000-0002-4711-3366"},"institutions":[{"id":"https://openalex.org/I51504820","display_name":"San Jose State University","ror":"https://ror.org/04qyvz380","country_code":"US","type":"education","lineage":["https://openalex.org/I51504820"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Magdalini Eirinaki","raw_affiliation_strings":["Computer Engineering Department, San Jose State University San Jose, CA, USA"],"affiliations":[{"raw_affiliation_string":"Computer Engineering Department, San Jose State University San Jose, CA, USA","institution_ids":["https://openalex.org/I51504820"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056484904","display_name":"Iraklis Varlamis","orcid":"https://orcid.org/0000-0002-0876-8167"},"institutions":[{"id":"https://openalex.org/I32762134","display_name":"Harokopio University of Athens","ror":"https://ror.org/02k5gp281","country_code":"GR","type":"education","lineage":["https://openalex.org/I32762134"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Iraklis Varlamis","raw_affiliation_strings":["Department of Informatics and Telematics, Harokopio University of Athens, Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Informatics and Telematics, Harokopio University of Athens, Athens, Greece","institution_ids":["https://openalex.org/I32762134"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076959351","display_name":"George T. Karetsos","orcid":"https://orcid.org/0000-0002-7430-8193"},"institutions":[{"id":"https://openalex.org/I51955386","display_name":"Technological Educational Institute of Thessaly","ror":"https://ror.org/04056ja87","country_code":"GR","type":"education","lineage":["https://openalex.org/I51955386"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"George Karetsos","raw_affiliation_strings":["Department of Computer Engineering, Technology Education Institute of Thessaly, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering, Technology Education Institute of Thessaly, Greece","institution_ids":["https://openalex.org/I51955386"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5051146986"],"corresponding_institution_ids":["https://openalex.org/I89506807"],"apc_list":null,"apc_paid":null,"fwci":0.1435,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.4638194,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"8"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10064","display_name":"Complex Network Analysis Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10064","display_name":"Complex Network Analysis Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9994999766349792,"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/T11478","display_name":"Caching and Content Delivery","score":0.9984999895095825,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8530812859535217},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.8314124345779419},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.6470025181770325},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.5704768896102905},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.5016012191772461},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.4708620607852936},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3640073537826538},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.3583714962005615},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.34880781173706055},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.326843798160553},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.26659607887268066},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.11191493272781372}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8530812859535217},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.8314124345779419},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.6470025181770325},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.5704768896102905},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.5016012191772461},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.4708620607852936},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3640073537826538},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.3583714962005615},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.34880781173706055},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.326843798160553},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.26659607887268066},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.11191493272781372},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","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/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.23919/spects.2019.8823538","is_oa":false,"landing_page_url":"https://doi.org/10.23919/spects.2019.8823538","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS)","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarworks.sjsu.edu:faculty_rsca-5256","is_oa":false,"landing_page_url":"https://scholarworks.sjsu.edu/faculty_rsca/4257","pdf_url":null,"source":{"id":"https://openalex.org/S4377196389","display_name":"San Jos\u00e9 State University ScholarWorks (San Jose State University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I51504820","host_organization_name":"San Jose State University","host_organization_lineage":["https://openalex.org/I51504820"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Faculty Research, Scholarly, and Creative Activity","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":42,"referenced_works":["https://openalex.org/W5356387","https://openalex.org/W22273296","https://openalex.org/W120301130","https://openalex.org/W267779932","https://openalex.org/W950821216","https://openalex.org/W1554081756","https://openalex.org/W1594445074","https://openalex.org/W1673310716","https://openalex.org/W1967955538","https://openalex.org/W1978311764","https://openalex.org/W1982944175","https://openalex.org/W1984069252","https://openalex.org/W2000938415","https://openalex.org/W2003123321","https://openalex.org/W2011430131","https://openalex.org/W2011975873","https://openalex.org/W2040975483","https://openalex.org/W2042123098","https://openalex.org/W2056609785","https://openalex.org/W2061820396","https://openalex.org/W2070232376","https://openalex.org/W2073507850","https://openalex.org/W2076219102","https://openalex.org/W2101402391","https://openalex.org/W2121947709","https://openalex.org/W2127080661","https://openalex.org/W2136621081","https://openalex.org/W2151859395","https://openalex.org/W2155055595","https://openalex.org/W2340079414","https://openalex.org/W2362560677","https://openalex.org/W2546141654","https://openalex.org/W2754493004","https://openalex.org/W2761816179","https://openalex.org/W2962936633","https://openalex.org/W4243349358","https://openalex.org/W4292081303","https://openalex.org/W4300939306","https://openalex.org/W6600897976","https://openalex.org/W6604797525","https://openalex.org/W6609714429","https://openalex.org/W6637131181"],"related_works":["https://openalex.org/W4390273403","https://openalex.org/W4386781444","https://openalex.org/W2150182025","https://openalex.org/W1982914007","https://openalex.org/W2159583675","https://openalex.org/W1824242903","https://openalex.org/W1493858311","https://openalex.org/W2155470929","https://openalex.org/W2394465510","https://openalex.org/W2111125783"],"abstract_inverted_index":{"The":[0],"quality":[1],"of":[2,10,13,20,27,32,47,133,145],"recommendations":[3,182],"on":[4,103,130,138,163,175],"social":[5,107],"networks":[6,108,136],"is":[7,59,69,128],"a":[8,123,160,167],"combination":[9,153],"the":[11,14,18,33,73,77,88,131,143,146,155,164,171,176,181],"richness":[12],"available":[15],"information":[16,29,44,66],"and":[17,22,55,75,93,113,116,141,151,170],"ability":[19],"algorithms":[21,36],"architectures":[23],"to":[24,38,61,71,80,179],"take":[25],"advantage":[26],"this":[28,53,96],"in":[30,152],"favor":[31],"users.":[34],"Recommendation":[35],"have":[37],"address":[39],"several":[40],"problems,":[41],"such":[42],"as":[43],"sparsity,":[45],"scalability":[46],"algorithms,":[48],"concept":[49],"drift":[50],"etc.":[51],"ln":[52,95],"dynamic":[54],"complex":[56],"environment,":[57],"it":[58,68],"important":[60],"provide":[62],"solutions":[63,82],"that":[64,84,109,184],"enrich":[65],"when":[67],"necessary":[70],"fill":[72],"gaps":[74],"at":[76],"same":[78],"time":[79],"scale":[81],"so":[83],"they":[85],"can":[86],"handle":[87],"ever":[89],"increasing":[90],"data":[91],"sizes":[92],"flows.":[94],"work,":[97],"we":[98,121],"extend":[99],"our":[100],"previous":[101],"work":[102],"recommender":[104],"systems":[105],"for":[106,183],"studied":[110],"global":[111,156],"influence":[112,125,180],"trust":[114],"metrics":[115],"their":[117],"applications.":[118],"More":[119],"specifically,":[120],"introduce":[122],"local":[124,134],"model,":[126,148],"which":[127],"relied":[129],"formation":[132],"user":[135,169],"based":[137,174],"common":[139],"interests":[140],"study":[142],"performance":[144],"new":[147],"both":[149],"stand-alone":[150],"with":[154],"one.":[157],"Results":[158],"show":[159],"promising":[161],"improvement":[162],"similarity":[165],"between":[166],"target":[168,185],"users":[172,177],"recommended":[173],"selected":[178],"user.":[186]},"counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
