{"id":"https://openalex.org/W2939640744","doi":"https://doi.org/10.1109/percom.2019.8767396","title":"HCFContext: Smartphone Context Inference via Sequential History-based Collaborative Filtering","display_name":"HCFContext: Smartphone Context Inference via Sequential History-based Collaborative Filtering","publication_year":2019,"publication_date":"2019-03-01","ids":{"openalex":"https://openalex.org/W2939640744","doi":"https://doi.org/10.1109/percom.2019.8767396","mag":"2939640744"},"language":"en","primary_location":{"id":"doi:10.1109/percom.2019.8767396","is_oa":false,"landing_page_url":"https://doi.org/10.1109/percom.2019.8767396","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Pervasive Computing and Communications (PerCom","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["arxiv","crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/1904.09631","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020398131","display_name":"Vidyasagar Sadhu","orcid":"https://orcid.org/0000-0001-6304-1297"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vidyasagar Sadhu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059269246","display_name":"Saman Zonouz","orcid":"https://orcid.org/0000-0001-9047-4047"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Saman Zonouz","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030956772","display_name":"Vincent Sritapan","orcid":null},"institutions":[{"id":"https://openalex.org/I1282113950","display_name":"United States Department of Homeland Security","ror":"https://ror.org/00jyr0d86","country_code":"US","type":"funder","lineage":["https://openalex.org/I1282113950"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vincent Sritapan","raw_affiliation_strings":["Department of Homeland Security Science & Technology Directorate, Cyber Security Division, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Homeland Security Science & Technology Directorate, Cyber Security Division, USA","institution_ids":["https://openalex.org/I1282113950"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5007041249","display_name":"Dario Pompili","orcid":"https://orcid.org/0000-0002-5365-509X"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dario Pompili","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Rutgers University, New Brunswick, USA","institution_ids":["https://openalex.org/I102322142"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0257137,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"6","issue":null,"first_page":"1","last_page":"10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9984999895095825,"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"}},"topics":[{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9984999895095825,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9976000189781189,"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/T11800","display_name":"User Authentication and Security Systems","score":0.9950000047683716,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7667665481567383},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.7226579189300537},{"id":"https://openalex.org/keywords/hidden-markov-model","display_name":"Hidden Markov model","score":0.5536563396453857},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.4883098602294922},{"id":"https://openalex.org/keywords/context-model","display_name":"Context model","score":0.47616928815841675},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.4505709111690521},{"id":"https://openalex.org/keywords/mobile-computing","display_name":"Mobile computing","score":0.4456009268760681},{"id":"https://openalex.org/keywords/mobile-device","display_name":"Mobile device","score":0.42652708292007446},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3700079619884491},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.32351744174957275},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.31873175501823425},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.2322922646999359},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.14973971247673035},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.13890430331230164},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.10002082586288452}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7667665481567383},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.7226579189300537},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.5536563396453857},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.4883098602294922},{"id":"https://openalex.org/C183322885","wikidata":"https://www.wikidata.org/wiki/Q17007702","display_name":"Context model","level":3,"score":0.47616928815841675},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.4505709111690521},{"id":"https://openalex.org/C144543869","wikidata":"https://www.wikidata.org/wiki/Q2738570","display_name":"Mobile computing","level":2,"score":0.4456009268760681},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.42652708292007446},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3700079619884491},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.32351744174957275},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.31873175501823425},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.2322922646999359},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.14973971247673035},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.13890430331230164},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.10002082586288452},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/percom.2019.8767396","is_oa":false,"landing_page_url":"https://doi.org/10.1109/percom.2019.8767396","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Pervasive Computing and Communications (PerCom","raw_type":"proceedings-article"},{"id":"pmh:oai:arXiv.org:1904.09631","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1904.09631","pdf_url":"https://arxiv.org/pdf/1904.09631","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"mag:2939640744","is_oa":true,"landing_page_url":"http://arxiv.org/pdf/1904.09631.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},{"id":"pmh:oai:alma.01RUT_INST:11663589960004646","is_oa":false,"landing_page_url":"https://scholarship.libraries.rutgers.edu/esploro/outputs/conferenceProceeding/HCFContext-Smartphone-Context-Inference-via-Sequential/991031654658704646","pdf_url":null,"source":{"id":"https://openalex.org/S4210197018","display_name":"View","issn_l":"2688-268X","issn":["2688-268X","2688-3988"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference Proceedings"},{"id":"doi:10.48550/arxiv.1904.09631","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.1904.09631","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:1904.09631","is_oa":true,"landing_page_url":"http://arxiv.org/abs/1904.09631","pdf_url":"https://arxiv.org/pdf/1904.09631","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.4300000071525574,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320306110","display_name":"U.S. Department of Homeland Security","ror":"https://ror.org/00jyr0d86"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2939640744.pdf","grobid_xml":"https://content.openalex.org/works/W2939640744.grobid-xml"},"referenced_works_count":28,"referenced_works":["https://openalex.org/W1663973292","https://openalex.org/W1998685288","https://openalex.org/W2009573649","https://openalex.org/W2027236879","https://openalex.org/W2039604457","https://openalex.org/W2074040836","https://openalex.org/W2075840228","https://openalex.org/W2092676845","https://openalex.org/W2110591510","https://openalex.org/W2111046157","https://openalex.org/W2111255563","https://openalex.org/W2124558600","https://openalex.org/W2127095067","https://openalex.org/W2128920581","https://openalex.org/W2132172731","https://openalex.org/W2134969601","https://openalex.org/W2140579839","https://openalex.org/W2145241316","https://openalex.org/W2154298720","https://openalex.org/W2159552930","https://openalex.org/W2160960607","https://openalex.org/W2168329935","https://openalex.org/W2365845504","https://openalex.org/W2529537874","https://openalex.org/W2591677828","https://openalex.org/W3146331408","https://openalex.org/W4295021613","https://openalex.org/W6676781583"],"related_works":["https://openalex.org/W2962796061","https://openalex.org/W2133823270","https://openalex.org/W2135692768","https://openalex.org/W2025587234","https://openalex.org/W2051020326","https://openalex.org/W2810439131","https://openalex.org/W2552141907","https://openalex.org/W2585909240","https://openalex.org/W2512392859","https://openalex.org/W2515731430","https://openalex.org/W3116132826","https://openalex.org/W2052561326","https://openalex.org/W2996833046","https://openalex.org/W3100378204","https://openalex.org/W1964482960","https://openalex.org/W2096898040","https://openalex.org/W2183610754","https://openalex.org/W2891535198","https://openalex.org/W2095158436","https://openalex.org/W3134711533"],"abstract_inverted_index":{"Mobile":[0],"context":[1,79,94,102,119,127,159],"determination":[2],"is":[3,40,51,166,175],"an":[4],"important":[5],"step":[6],"for":[7,21],"many":[8],"context-aware":[9],"services":[10],"such":[11],"as":[12],"location-based":[13],"services,":[14],"enterprise":[15,27],"policy":[16],"enforcement,":[17],"building/room":[18],"occupancy":[19],"detection":[20],"power/HVAC":[22],"operation,":[23],"etc.":[24,146],"Especially":[25],"in":[26,41,140,169],"scenarios":[28],"where":[29],"policies":[30],"(e.g.,":[31],"attending":[32],"a":[33,167,172,196],"confidential":[34],"meeting":[35],"only":[36],"when":[37],"the":[38,55,58,69,92,99,104,117,121,126,133,149,158,184],"user":[39,123],"\"Location":[42],"X\")":[43],"are":[44,80,192],"defined":[45],"based":[46,67,124,182],"on":[47,68,125,183,195],"mobile":[48,59,78],"context,":[49],"it":[50,114],"paramount":[52],"to":[53,76,115,132,156,177],"verify":[54],"accuracy":[56],"of":[57,71,98,120,129,148,186],"context.":[60],"To":[61],"this":[62],"end,":[63],"two":[64],"stochastic":[65],"models":[66,151,191],"theory":[70],"Hidden":[72],"Markov":[73],"Models":[74],"(HMMs)":[75],"obtain":[77],"proposed-personalized":[81],"model":[82,87,180],"(HPContext)":[83],"and":[84],"collaborative":[85,109,170],"filtering":[86,110],"(HCFContext).":[88],"The":[89],"former":[90],"predicts":[91],"current":[93,118],"using":[95],"sequential":[96],"history":[97],"user's":[100],"past":[101],"observations;":[103],"latter":[105],"enhances":[106],"HPContext":[107],"with":[108],"features,":[111],"which":[112],"enables":[113],"predict":[116],"primary":[122,134],"observations":[128],"users":[130],"related":[131],"user,":[135],"e.g.,":[136],"same":[137],"team":[138],"colleagues":[139],"company,":[141],"gym":[142],"friends,":[143],"family":[144],"members,":[145],"Each":[147],"proposed":[150,176],"can":[152],"also":[153],"be":[154],"used":[155],"enhance/complement":[157],"obtained":[160],"from":[161],"sensors.":[162],"Furthermore,":[163],"since":[164],"privacy":[165],"concern":[168],"filtering,":[171],"privacy-preserving":[173],"method":[174],"derive":[178],"HCFContext":[179],"parameters":[181],"concepts":[185],"homomorphic":[187],"encryption.":[188],"Finally,":[189],"these":[190],"thoroughly":[193],"validated":[194],"real-life":[197],"dataset.":[198]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
