{"id":"https://openalex.org/W2038192363","doi":"https://doi.org/10.1109/icce-berlin.2014.7034305","title":"High-accuracy time-variant recommender system with Number-Score curve","display_name":"High-accuracy time-variant recommender system with Number-Score curve","publication_year":2014,"publication_date":"2014-09-01","ids":{"openalex":"https://openalex.org/W2038192363","doi":"https://doi.org/10.1109/icce-berlin.2014.7034305","mag":"2038192363"},"language":"en","primary_location":{"id":"doi:10.1109/icce-berlin.2014.7034305","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icce-berlin.2014.7034305","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Fourth International Conference on Consumer Electronics Berlin (ICCE-Berlin)","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/A5087607001","display_name":"Kazushige Hiroi","orcid":null},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kazushige Hiroi","raw_affiliation_strings":["Yokohama Research Laboratory Hitachi Ltd., Japan","[Yokohama Research Laboratory, Hitachi Ltd., Kanagawa, Japan]"],"affiliations":[{"raw_affiliation_string":"Yokohama Research Laboratory Hitachi Ltd., Japan","institution_ids":["https://openalex.org/I65143321"]},{"raw_affiliation_string":"[Yokohama Research Laboratory, Hitachi Ltd., Kanagawa, Japan]","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102995644","display_name":"Hiroyoshi Morita","orcid":"https://orcid.org/0000-0002-4997-2092"},"institutions":[{"id":"https://openalex.org/I20529979","display_name":"University of Electro-Communications","ror":"https://ror.org/02x73b849","country_code":"JP","type":"education","lineage":["https://openalex.org/I20529979"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroyoshi Morita","raw_affiliation_strings":["Graduate School of Information Systems, University of Electro-Communications, Tokyo, Japan","Graduate Sch. of Inf. Syst., Univ. of Electro-Communications, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Information Systems, University of Electro-Communications, Tokyo, Japan","institution_ids":["https://openalex.org/I20529979"]},{"raw_affiliation_string":"Graduate Sch. of Inf. Syst., Univ. of Electro-Communications, Tokyo, Japan","institution_ids":["https://openalex.org/I20529979"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5087607001"],"corresponding_institution_ids":["https://openalex.org/I65143321"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.16899839,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":null,"issue":null,"first_page":"106","last_page":"110"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9973999857902527,"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":0.9973999857902527,"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":0.9812999963760376,"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":0.9681000113487244,"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/recommender-system","display_name":"Recommender system","score":0.8612569570541382},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.718565046787262},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3174419701099396}],"concepts":[{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.8612569570541382},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.718565046787262},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3174419701099396}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icce-berlin.2014.7034305","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icce-berlin.2014.7034305","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Fourth International Conference on Consumer Electronics Berlin (ICCE-Berlin)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1495821370","https://openalex.org/W1531450291","https://openalex.org/W1990372165","https://openalex.org/W2071347005","https://openalex.org/W2084127140","https://openalex.org/W2118898598","https://openalex.org/W2159094788","https://openalex.org/W6629596978"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2748952813","https://openalex.org/W4390273403","https://openalex.org/W4386781444","https://openalex.org/W2150182025","https://openalex.org/W3092950680","https://openalex.org/W3197542405","https://openalex.org/W2056712470","https://openalex.org/W3125580266","https://openalex.org/W4317039510"],"abstract_inverted_index":{"Recommender":[0],"systems":[1,12],"are":[2],"becoming":[3],"more":[4],"effective":[5],"as":[6,55,94,96],"information":[7],"becomes":[8],"extensive.":[9],"Conventional":[10],"recommender":[11,35,88,113,136],"show":[13],"a":[14,41,47,56,110,116,135],"list":[15],"of":[16,22,102,130],"recommended":[17,23,68,93,103,131,156],"items,":[18],"but":[19],"the":[20,34,77,99,121,124,128,142,155,159],"number":[21,101,129],"items":[24,90],"shown":[25],"must":[26,71,91],"be":[27,72,92],"limited":[28,48,63,100],"in":[29,40,74,81,141],"some":[30],"systems.":[31],"For":[32],"example,":[33],"system":[36,114,137],"for":[37,85,138,154],"TV":[38,69,139],"programs":[39,70,140],"hard":[42,64,143],"disk":[43,65,144],"recorder":[44,145],"has":[45],"only":[46],"user":[49],"interface":[50],"and":[51,62,79,127,151],"hardware":[52],"resources,":[53],"such":[54],"remote":[57],"controller,":[58],"low":[59],"display":[60],"resolution,":[61],"capacity.":[66],"Moreover,":[67],"changed":[73],"accordance":[75],"with":[76,115,158],"time":[78],"day":[80],"this":[82,106],"system.":[83],"Thus,":[84],"these":[86],"\u201ctime-variant\u201d":[87],"systems,":[89],"accurately":[95],"possible":[97],"within":[98],"items.":[104,132],"In":[105],"paper,":[107],"we":[108],"propose":[109],"high-accuracy":[111],"time-variant":[112],"\u201cNumber-Score":[117],"curve\u201d,":[118],"which":[119],"indicates":[120],"relationship":[122],"between":[123],"recommendation":[125],"score":[126],"We":[133],"examine":[134],"that":[146],"can":[147],"achieve":[148],"82%":[149],"precision":[150],"78%":[152],"recall":[153],"results":[157],"Number-Score":[160],"curve.":[161]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}