{"id":"https://openalex.org/W2909698861","doi":"https://doi.org/10.1007/s00530-018-0601-1","title":"An app usage recommender system: improving prediction accuracy for both warm and cold start users","display_name":"An app usage recommender system: improving prediction accuracy for both warm and cold start users","publication_year":2019,"publication_date":"2019-01-10","ids":{"openalex":"https://openalex.org/W2909698861","doi":"https://doi.org/10.1007/s00530-018-0601-1","mag":"2909698861"},"language":"en","primary_location":{"id":"doi:10.1007/s00530-018-0601-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00530-018-0601-1","pdf_url":null,"source":{"id":"https://openalex.org/S112262039","display_name":"Multimedia Systems","issn_l":"0942-4962","issn":["0942-4962","1432-1882"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Multimedia Systems","raw_type":"journal-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/A5087216053","display_name":"Di Han","orcid":"https://orcid.org/0000-0003-3890-1528"},"institutions":[{"id":"https://openalex.org/I111950717","display_name":"Macau University of Science and Technology","ror":"https://ror.org/03jqs2n27","country_code":"MO","type":"education","lineage":["https://openalex.org/I111950717","https://openalex.org/I4391767947"]}],"countries":["MO"],"is_corresponding":true,"raw_author_name":"Di Han","raw_affiliation_strings":["Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China"],"affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China","institution_ids":["https://openalex.org/I111950717"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100641152","display_name":"Jianqing Li","orcid":"https://orcid.org/0000-0002-6768-1483"},"institutions":[{"id":"https://openalex.org/I111950717","display_name":"Macau University of Science and Technology","ror":"https://ror.org/03jqs2n27","country_code":"MO","type":"education","lineage":["https://openalex.org/I111950717","https://openalex.org/I4391767947"]}],"countries":["MO"],"is_corresponding":false,"raw_author_name":"Jianqing Li","raw_affiliation_strings":["Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China"],"affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China","institution_ids":["https://openalex.org/I111950717"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100440865","display_name":"Wenting Li","orcid":"https://orcid.org/0000-0002-2613-8257"},"institutions":[{"id":"https://openalex.org/I178232147","display_name":"Guizhou University","ror":"https://ror.org/02wmsc916","country_code":"CN","type":"education","lineage":["https://openalex.org/I178232147"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenting Li","raw_affiliation_strings":["Computer and Information Engineering College, Guizhou University of Commerce, Guiyang, China"],"affiliations":[{"raw_affiliation_string":"Computer and Information Engineering College, Guizhou University of Commerce, Guiyang, China","institution_ids":["https://openalex.org/I178232147"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101817369","display_name":"Ruibin Liu","orcid":"https://orcid.org/0000-0002-8252-5585"},"institutions":[{"id":"https://openalex.org/I111950717","display_name":"Macau University of Science and Technology","ror":"https://ror.org/03jqs2n27","country_code":"MO","type":"education","lineage":["https://openalex.org/I111950717","https://openalex.org/I4391767947"]}],"countries":["MO"],"is_corresponding":false,"raw_author_name":"Ruibin Liu","raw_affiliation_strings":["Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China"],"affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China","institution_ids":["https://openalex.org/I111950717"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100760046","display_name":"Hai Chen","orcid":"https://orcid.org/0000-0003-2333-3599"},"institutions":[{"id":"https://openalex.org/I111950717","display_name":"Macau University of Science and Technology","ror":"https://ror.org/03jqs2n27","country_code":"MO","type":"education","lineage":["https://openalex.org/I111950717","https://openalex.org/I4391767947"]}],"countries":["MO"],"is_corresponding":false,"raw_author_name":"Hai Chen","raw_affiliation_strings":["Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China"],"affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, Macau University of Science and Technology, Taipa, Macau, China","institution_ids":["https://openalex.org/I111950717"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5087216053"],"corresponding_institution_ids":["https://openalex.org/I111950717"],"apc_list":null,"apc_paid":null,"fwci":1.4063,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.85788525,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"25","issue":"6","first_page":"603","last_page":"616"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9983999729156494,"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":0.9983999729156494,"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/T12238","display_name":"Green IT and Sustainability","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9824000000953674,"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":0.7517373561859131},{"id":"https://openalex.org/keywords/cold-start","display_name":"Cold start (automotive)","score":0.7494879961013794},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.735777735710144},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.31339144706726074},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.06344589591026306}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7517373561859131},{"id":"https://openalex.org/C2778956030","wikidata":"https://www.wikidata.org/wiki/Q5142477","display_name":"Cold start (automotive)","level":2,"score":0.7494879961013794},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.735777735710144},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.31339144706726074},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.06344589591026306},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s00530-018-0601-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00530-018-0601-1","pdf_url":null,"source":{"id":"https://openalex.org/S112262039","display_name":"Multimedia Systems","issn_l":"0942-4962","issn":["0942-4962","1432-1882"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Multimedia Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5199999809265137,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W1485815177","https://openalex.org/W1625870857","https://openalex.org/W1985716425","https://openalex.org/W1992842584","https://openalex.org/W2012724135","https://openalex.org/W2023637508","https://openalex.org/W2032654855","https://openalex.org/W2072183241","https://openalex.org/W2073601450","https://openalex.org/W2088394455","https://openalex.org/W2099131648","https://openalex.org/W2100235918","https://openalex.org/W2102346651","https://openalex.org/W2108685212","https://openalex.org/W2120761625","https://openalex.org/W2124623839","https://openalex.org/W2133253683","https://openalex.org/W2140942692","https://openalex.org/W2145937819","https://openalex.org/W2154259852","https://openalex.org/W2159704237","https://openalex.org/W2170506729","https://openalex.org/W2171960770","https://openalex.org/W2268996352","https://openalex.org/W2281590042","https://openalex.org/W2297788108","https://openalex.org/W2336920772","https://openalex.org/W2512392859","https://openalex.org/W2560288464","https://openalex.org/W2576937703","https://openalex.org/W2605350416","https://openalex.org/W2616440919","https://openalex.org/W2749668663","https://openalex.org/W2788730650","https://openalex.org/W2802187397","https://openalex.org/W2963285709"],"related_works":["https://openalex.org/W2497939785","https://openalex.org/W2219931199","https://openalex.org/W2735929803","https://openalex.org/W2971083348","https://openalex.org/W584290403","https://openalex.org/W3214288750","https://openalex.org/W2786642545","https://openalex.org/W3095646726","https://openalex.org/W2084560547","https://openalex.org/W4315783862"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}