{"id":"https://openalex.org/W2240544807","doi":"https://doi.org/10.1109/wf-iot.2015.7389084","title":"Hierarchical algorithm for daily activity recognition via smartphone sensors","display_name":"Hierarchical algorithm for daily activity recognition via smartphone sensors","publication_year":2015,"publication_date":"2015-12-01","ids":{"openalex":"https://openalex.org/W2240544807","doi":"https://doi.org/10.1109/wf-iot.2015.7389084","mag":"2240544807"},"language":"en","primary_location":{"id":"doi:10.1109/wf-iot.2015.7389084","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wf-iot.2015.7389084","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 2nd World Forum on Internet of Things (WF-IoT)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5110634027","display_name":"Gabriel Filios","orcid":null},"institutions":[{"id":"https://openalex.org/I120729142","display_name":"Computer Technology Institute and Press \u201cDIOPHANTUS\u201d","ror":"https://ror.org/021nszj63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I120729142","https://openalex.org/I4210154149"]},{"id":"https://openalex.org/I174878644","display_name":"University of Patras","ror":"https://ror.org/017wvtq80","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Gabriel Filios","raw_affiliation_strings":["Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece","institution_ids":["https://openalex.org/I120729142","https://openalex.org/I174878644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017634682","display_name":"Sotiris Nikoletseas","orcid":"https://orcid.org/0000-0003-3765-5636"},"institutions":[{"id":"https://openalex.org/I120729142","display_name":"Computer Technology Institute and Press \u201cDIOPHANTUS\u201d","ror":"https://ror.org/021nszj63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I120729142","https://openalex.org/I4210154149"]},{"id":"https://openalex.org/I174878644","display_name":"University of Patras","ror":"https://ror.org/017wvtq80","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Sotiris Nikoletseas","raw_affiliation_strings":["Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece","institution_ids":["https://openalex.org/I120729142","https://openalex.org/I174878644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081835064","display_name":"Christina Pavlopoulou","orcid":null},"institutions":[{"id":"https://openalex.org/I120729142","display_name":"Computer Technology Institute and Press \u201cDIOPHANTUS\u201d","ror":"https://ror.org/021nszj63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I120729142","https://openalex.org/I4210154149"]},{"id":"https://openalex.org/I174878644","display_name":"University of Patras","ror":"https://ror.org/017wvtq80","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Christina Pavlopoulou","raw_affiliation_strings":["Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece","institution_ids":["https://openalex.org/I120729142","https://openalex.org/I174878644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089396194","display_name":"Maria Rapti","orcid":null},"institutions":[{"id":"https://openalex.org/I120729142","display_name":"Computer Technology Institute and Press \u201cDIOPHANTUS\u201d","ror":"https://ror.org/021nszj63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I120729142","https://openalex.org/I4210154149"]},{"id":"https://openalex.org/I174878644","display_name":"University of Patras","ror":"https://ror.org/017wvtq80","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Maria Rapti","raw_affiliation_strings":["Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Technology Institute and Press \u201cDiophantus\u201d (CTI), University of Patras, Greece","institution_ids":["https://openalex.org/I120729142","https://openalex.org/I174878644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064168042","display_name":"S\u00e9bastien Ziegler","orcid":"https://orcid.org/0000-0001-7255-4975"},"institutions":[{"id":"https://openalex.org/I313330704","display_name":"Mandat International","ror":"https://ror.org/01r0w2t07","country_code":"CH","type":"other","lineage":["https://openalex.org/I313330704"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Sebastien Ziegler","raw_affiliation_strings":["Mandat International, Geneva, Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mandat International, Geneva, Switzerland","institution_ids":["https://openalex.org/I313330704"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.4868,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.90990622,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9997000098228455,"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":0.9997000098228455,"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":0.9868000149726868,"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/T10273","display_name":"IoT and Edge/Fog Computing","score":0.9670000076293945,"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":0.6769759654998779},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.6134600043296814},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.40897250175476074},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3607938289642334},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3270658254623413}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6769759654998779},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.6134600043296814},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40897250175476074},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3607938289642334},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3270658254623413}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wf-iot.2015.7389084","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wf-iot.2015.7389084","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 2nd World Forum on Internet of Things (WF-IoT)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W151314940","https://openalex.org/W1570448133","https://openalex.org/W2006702209","https://openalex.org/W2017634428","https://openalex.org/W2026124805","https://openalex.org/W2030775554","https://openalex.org/W2105046342","https://openalex.org/W2116894522","https://openalex.org/W2142216726","https://openalex.org/W2162555816"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2051487156","https://openalex.org/W2073681303","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W3195649134","https://openalex.org/W2033914206","https://openalex.org/W2042327336"],"abstract_inverted_index":{"The":[0],"detection":[1,29],"of":[2,13,15,33,50,63,76,106,130],"daily":[3],"human":[4,27],"activities":[5,100],"is":[6],"a":[7,22],"key":[8],"component":[9],"in":[10,103,127,136],"modern":[11],"applications":[12],"Internet":[14],"Things.":[16],"In":[17,37,65],"this":[18],"study,":[19],"we":[20],"introduce":[21],"hierarchical":[23,95],"algorithm":[24,42,70,96],"for":[25,124],"online":[26],"activity":[28],"with":[30,119,133,140],"two":[31],"levels":[32,129],"feature":[34,121],"extraction":[35,122],"methods.":[36],"the":[38,41,55,58,66,69,74,77,84,87,104,107],"lower":[39],"level,":[40,68],"gets":[43],"sensor":[44],"data":[45],"from":[46,79],"accelerometer":[47],"and":[48,53,60,82,93,132,145],"microphone":[49],"user":[51,147],"smartphone":[52,111],"extracts":[54,83],"models":[56,81,123],"about":[57,86],"Motion":[59],"Environment":[61],"Detection":[62],"user.":[64],"higher":[67,141],"takes":[71],"as":[72],"input":[73],"combination":[75],"output":[78],"these":[80],"model":[85],"Human":[88],"Activity":[89],"Detection.":[90],"This":[91],"flexible":[92],"modular":[94],"detects":[97],"more":[98,120,143],"complex":[99],"(than":[101],"usually":[102],"state":[105],"art),":[108],"under":[109],"broader":[110],"configurations":[112],"(position,":[113],"orientation).":[114],"It":[115],"can":[116],"be":[117],"extended":[118],"different":[125,134],"sensors,":[126],"additional":[128],"hierarchy":[131],"combinations":[135],"order":[137],"to":[138],"recognise":[139],"accuracy":[142],"specific":[144],"sophisticated":[146],"activities.":[148]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":4}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}