{"id":"https://openalex.org/W2064747641","doi":"https://doi.org/10.1109/icmu.2015.7061060","title":"Passive user identification using sequential analysis of proximity information in touchscreen usage patterns","display_name":"Passive user identification using sequential analysis of proximity information in touchscreen usage patterns","publication_year":2015,"publication_date":"2015-01-01","ids":{"openalex":"https://openalex.org/W2064747641","doi":"https://doi.org/10.1109/icmu.2015.7061060","mag":"2064747641"},"language":"en","primary_location":{"id":"doi:10.1109/icmu.2015.7061060","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icmu.2015.7061060","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","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/A5016005164","display_name":"Vadim Zaliva","orcid":"https://orcid.org/0000-0002-9145-3288"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Vadim Zaliva","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013765339","display_name":"William Melicher","orcid":"https://orcid.org/0000-0003-3166-4777"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"William Melicher","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088617851","display_name":"Shayan Saha","orcid":null},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shayan Saha","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109153056","display_name":"Joy Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joy Zhang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5016005164"],"corresponding_institution_ids":["https://openalex.org/I74973139"],"apc_list":null,"apc_paid":null,"fwci":0.7944,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.80848219,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"161","last_page":"166"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":0.9997000098228455,"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/T11800","display_name":"User Authentication and Security Systems","score":0.9997000098228455,"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/T10828","display_name":"Biometric Identification and Security","score":0.9800000190734863,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10789","display_name":"Interactive and Immersive Displays","score":0.944100022315979,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"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/touchscreen","display_name":"Touchscreen","score":0.8570002317428589},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7150378227233887},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.6175421476364136},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.47835344076156616}],"concepts":[{"id":"https://openalex.org/C2778539339","wikidata":"https://www.wikidata.org/wiki/Q165970","display_name":"Touchscreen","level":2,"score":0.8570002317428589},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7150378227233887},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.6175421476364136},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.47835344076156616},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icmu.2015.7061060","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icmu.2015.7061060","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Reduced inequalities","score":0.5099999904632568,"id":"https://metadata.un.org/sdg/10"},{"display_name":"Peace, Justice and strong institutions","score":0.46000000834465027,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1554663460","https://openalex.org/W2052653358","https://openalex.org/W2060741466","https://openalex.org/W2066264643","https://openalex.org/W2107589078","https://openalex.org/W2110878294","https://openalex.org/W2123066336","https://openalex.org/W2129793529","https://openalex.org/W2136928336","https://openalex.org/W2149019984","https://openalex.org/W2151854612","https://openalex.org/W2154123601","https://openalex.org/W2162826105","https://openalex.org/W2164675859","https://openalex.org/W4388297464","https://openalex.org/W6682000646","https://openalex.org/W6682795260"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2762811937","https://openalex.org/W4205102248","https://openalex.org/W30804224","https://openalex.org/W1966390168","https://openalex.org/W2744202812","https://openalex.org/W4298162897","https://openalex.org/W2515846482","https://openalex.org/W2285672838","https://openalex.org/W2055116326"],"abstract_inverted_index":{"Modern":[0],"touch":[1],"screen":[2],"sensors":[3],"are":[4],"capable":[5],"of":[6,30,37,68,106,127,155,198],"detecting":[7],"and":[8,83,104],"reporting":[9],"finger":[10,20,85],"presence":[11],"not":[12,146],"only":[13,147],"upon":[14],"contact":[15,93],"but":[16,152],"also":[17,153],"as":[18,169],"the":[19,23,35,61,65,69,79,92,102,107,113,193,208],"is":[21],"approaching":[22],"screen.":[24,70],"This":[25],"gives":[26],"us":[27],"a":[28,55,118,123,134],"wealth":[29],"additional":[31],"information,":[32],"which":[33,75,96,132],"to":[34,99,206],"best":[36],"our":[38],"knowledge,":[39],"has":[40],"never":[41],"been":[42],"analyzed":[43],"before.":[44],"Using":[45],"these":[46],"new":[47],"sensor":[48,82],"capabilities,":[49],"we":[50,76,97,116,189],"can":[51,190],"see":[52],"exactly":[53],"how":[54],"user":[56,89,171,195],"performs":[57],"gestures":[58],"starting":[59],"from":[60,78,87,196],"finger's":[62,209],"approach":[63,121,210],"through":[64],"actual":[66],"touching":[67],"We":[71],"decode":[72],"proximity":[73,204],"data":[74,145,205],"collect":[77],"mobile":[80],"phone":[81],"extract":[84],"\u201ctraces\u201d":[86],"each":[88],"along":[90],"with":[91],"area":[94],"shapes,":[95],"use":[98],"distinguish":[100,192],"between":[101,150],"owner":[103],"one":[105],"other":[108,200],"users.":[109],"To":[110],"further":[111],"improve":[112],"classifier's":[114],"accuracy,":[115],"develop":[117],"sequential":[119],"classification":[120],"using":[122,203],"probability":[124],"ratio":[125],"test":[126],"artificial":[128],"neural":[129],"network":[130],"outputs":[131],"makes":[133],"decision":[135],"in":[136,164,184],"minimal":[137],"time":[138],"based":[139],"on":[140,187],"predefined":[141],"accuracy":[142],"goals.":[143],"The":[144],"allows":[148],"discrimination":[149],"users":[151,202],"detection":[154],"their":[156],"dominant":[157],"hand.":[158],"These":[159],"techniques":[160],"could":[161],"be":[162],"used":[163],"many":[165],"practical":[166],"applications,":[167],"such":[168],"passive":[170],"authentication":[172],"or":[173,183],"personalization.":[174],"Our":[175],"experiments":[176],"show":[177],"that":[178],"after":[179],"just":[180],"5":[181],"touches,":[182],"12.6":[185],"seconds":[186],"average,":[188],"correctly":[191],"primary":[194],"any":[197],"14":[199],"known":[201],"model":[207],"pattern.":[211]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2017,"cited_by_count":1}],"updated_date":"2026-02-27T16:54:17.756197","created_date":"2025-10-10T00:00:00"}