{"id":"https://openalex.org/W2922429414","doi":"https://doi.org/10.23919/apsipa.2018.8659447","title":"TSFR: Time-aware Semantic-based Friend Recommendation in LBSNs","display_name":"TSFR: Time-aware Semantic-based Friend Recommendation in LBSNs","publication_year":2018,"publication_date":"2018-11-01","ids":{"openalex":"https://openalex.org/W2922429414","doi":"https://doi.org/10.23919/apsipa.2018.8659447","mag":"2922429414"},"language":"en","primary_location":{"id":"doi:10.23919/apsipa.2018.8659447","is_oa":false,"landing_page_url":"https://doi.org/10.23919/apsipa.2018.8659447","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","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/A5100671245","display_name":"Xiaoyan Zhu","orcid":"https://orcid.org/0000-0003-3741-9158"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaoyan Zhu","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100697216","display_name":"Lin\u2010Jie Zhang","orcid":"https://orcid.org/0000-0001-6702-8313"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Linjie Zhang","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035954888","display_name":"Huang Yizhe","orcid":null},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yizhe Huang","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063124926","display_name":"Baoming Bai","orcid":"https://orcid.org/0000-0002-6161-5493"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baoming Bai","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012016098","display_name":"Jianfeng Ma","orcid":"https://orcid.org/0000-0003-4251-1143"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianfeng Ma","raw_affiliation_strings":["State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100671245"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.26263315,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"2018","issue":null,"first_page":"266","last_page":"271"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9994000196456909,"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":0.9994000196456909,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9869999885559082,"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":0.8603383302688599},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7923467755317688},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.6100896596908569},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.5877559185028076},{"id":"https://openalex.org/keywords/divergence","display_name":"Divergence (linguistics)","score":0.5398089289665222},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.45820143818855286},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.40957754850387573}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8603383302688599},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7923467755317688},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.6100896596908569},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.5877559185028076},{"id":"https://openalex.org/C207390915","wikidata":"https://www.wikidata.org/wiki/Q1230525","display_name":"Divergence (linguistics)","level":2,"score":0.5398089289665222},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.45820143818855286},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.40957754850387573},{"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/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.23919/apsipa.2018.8659447","is_oa":false,"landing_page_url":"https://doi.org/10.23919/apsipa.2018.8659447","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","raw_type":"proceedings-article"},{"id":"mag:3091494817","is_oa":false,"landing_page_url":"https://jglobal.jst.go.jp/en/detail?JGLOBAL_ID=201902248537917557","pdf_url":null,"source":{"id":"https://openalex.org/S4306512817","display_name":"IEEE Conference Proceedings","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":"conference"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":"IEEE Conference Proceedings","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W333644549","https://openalex.org/W1870804046","https://openalex.org/W1982397092","https://openalex.org/W1984189333","https://openalex.org/W2054141820","https://openalex.org/W2063957642","https://openalex.org/W2073013176","https://openalex.org/W2081721999","https://openalex.org/W2086142729","https://openalex.org/W2110325612","https://openalex.org/W2110953678","https://openalex.org/W2139809240","https://openalex.org/W2340502990","https://openalex.org/W2512765161","https://openalex.org/W2564580785","https://openalex.org/W2643577078","https://openalex.org/W2744913212","https://openalex.org/W2950332743","https://openalex.org/W6666186483"],"related_works":["https://openalex.org/W2348159088","https://openalex.org/W2402445420","https://openalex.org/W1773619406","https://openalex.org/W2377968345","https://openalex.org/W2075040002","https://openalex.org/W2358464822","https://openalex.org/W2974025129","https://openalex.org/W2356507104","https://openalex.org/W2573253449","https://openalex.org/W2126026531"],"abstract_inverted_index":{"Advances":[0],"in":[1,20,85],"broadband":[2],"wireless":[3],"networks":[4,18],"and":[5,52,59,67,78,97,107,128,151],"location":[6],"sensing":[7],"technologies":[8],"have":[9],"led":[10],"to":[11,32,46,53,103,113],"the":[12,37,90,98,105,133,147,158],"emergence":[13],"of":[14,40,69,74,110,126,149,154],"location-based":[15],"online":[16],"social":[17,34],"(LBSNs)":[19],"recent":[21],"years.":[22],"Users'":[23],"passion":[24],"for":[25,49],"sharing":[26],"locations":[27],"has":[28],"attracted":[29],"much":[30],"attention":[31],"traditional":[33],"networks.":[35],"Therefore,":[36],"great":[38],"amount":[39],"check-in":[41,63,111,155],"data":[42,64,112],"can":[43],"be":[44],"used":[45],"make":[47,54,114],"recommendations":[48],"interesting":[50],"places":[51],"friends.":[55],"Because":[56],"both":[57,73],"semantic":[58,106,152],"time":[60,108,150],"information":[61,109,153],"on":[62],"reflect":[65],"preference":[66],"interests":[68],"users,":[70],"we":[71,122],"take":[72],"them":[75],"into":[76],"consideration":[77,148],"propose":[79],"a":[80,124,130],"time-aware":[81],"semantic-based":[82],"recommender":[83,120,136,162],"system":[84,131,137],"this":[86],"paper.":[87],"We":[88],"use":[89],"Term":[91],"Frequency-Inverse":[92],"Document":[93],"Frequency":[94],"(TF-IDF)":[95],"model":[96],"Kullback-Leibler":[99],"divergence":[100],"(K-L":[101],"divergence)":[102],"combine":[104],"friend":[115],"recommendations.":[116],"To":[117],"evaluate":[118],"our":[119,144],"system,":[121,145],"get":[123],"dataset":[125],"Gowalla":[127],"build":[129],"using":[132],"Collaborative":[134],"Filtering":[135],"structure.":[138],"The":[139],"experiment":[140],"results":[141],"show":[142],"that":[143],"with":[146],"data,":[156],"outperforms":[157],"classic":[159],"collaborative":[160],"filtering":[161],"system.":[163]},"counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}