{"id":"https://openalex.org/W1990211353","doi":"https://doi.org/10.1155/2013/927940","title":"Discovering Human Presence Activities with Smartphones Using Nonintrusive Wi-Fi Sniffer Sensors: The Big Data Prospective","display_name":"Discovering Human Presence Activities with Smartphones Using Nonintrusive Wi-Fi Sniffer Sensors: The Big Data Prospective","publication_year":2013,"publication_date":"2013-12-01","ids":{"openalex":"https://openalex.org/W1990211353","doi":"https://doi.org/10.1155/2013/927940","mag":"1990211353"},"language":"en","primary_location":{"id":"doi:10.1155/2013/927940","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2013/927940","pdf_url":"https://journals.sagepub.com/doi/pdf/10.1155/2013/927940","source":{"id":"https://openalex.org/S64417657","display_name":"International Journal of Distributed Sensor Networks","issn_l":"1550-1329","issn":["1550-1329","1550-1477"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Distributed Sensor Networks","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://journals.sagepub.com/doi/pdf/10.1155/2013/927940","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5085832591","display_name":"Weijun Qin","orcid":"https://orcid.org/0000-0002-7509-7164"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weijun Qin","raw_affiliation_strings":["State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","1 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"1 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106480009","display_name":"Jiadi Zhang","orcid":"https://orcid.org/0000-0001-8132-6261"},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiadi Zhang","raw_affiliation_strings":["School of Software and Microelectronics, Peking University, Beijing 102600, China","2 School of Software and Microelectronics, Peking University, Beijing 102600, China"],"affiliations":[{"raw_affiliation_string":"School of Software and Microelectronics, Peking University, Beijing 102600, China","institution_ids":["https://openalex.org/I20231570"]},{"raw_affiliation_string":"2 School of Software and Microelectronics, Peking University, Beijing 102600, China","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5114375869","display_name":"Bo Li","orcid":"https://orcid.org/0009-0003-4088-1578"},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Li","raw_affiliation_strings":["School of Software and Microelectronics, Peking University, Beijing 102600, China","2 School of Software and Microelectronics, Peking University, Beijing 102600, China"],"affiliations":[{"raw_affiliation_string":"School of Software and Microelectronics, Peking University, Beijing 102600, China","institution_ids":["https://openalex.org/I20231570"]},{"raw_affiliation_string":"2 School of Software and Microelectronics, Peking University, Beijing 102600, China","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061643975","display_name":"Limin Sun","orcid":"https://orcid.org/0000-0003-2745-7521"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Limin Sun","raw_affiliation_strings":["State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","1 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"1 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, No. 89, Minzhuang Road, Haidian District, Beijing 100093, China","institution_ids":["https://openalex.org/I19820366"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5085832591"],"corresponding_institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210156404"],"apc_list":{"value":2200,"currency":"USD","value_usd":2200},"apc_paid":{"value":2200,"currency":"USD","value_usd":2200},"fwci":2.272,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.89358542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"9","issue":"12","first_page":"927940","last_page":"927940"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9987999796867371,"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"}},"topics":[{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9987999796867371,"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/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9980000257492065,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8755699992179871},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5951235294342041},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5790873169898987},{"id":"https://openalex.org/keywords/aggregate","display_name":"Aggregate (composite)","score":0.5044606924057007},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.4960995614528656},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.476940780878067},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.45050668716430664},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15542903542518616}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8755699992179871},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5951235294342041},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5790873169898987},{"id":"https://openalex.org/C4679612","wikidata":"https://www.wikidata.org/wiki/Q866298","display_name":"Aggregate (composite)","level":2,"score":0.5044606924057007},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.4960995614528656},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.476940780878067},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.45050668716430664},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15542903542518616},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1155/2013/927940","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2013/927940","pdf_url":"https://journals.sagepub.com/doi/pdf/10.1155/2013/927940","source":{"id":"https://openalex.org/S64417657","display_name":"International Journal of Distributed Sensor Networks","issn_l":"1550-1329","issn":["1550-1329","1550-1477"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Distributed Sensor Networks","raw_type":"journal-article"},{"id":"pmh:oai:RePEc:sae:intdis:v:9:y:2013:i:12:p:927940","is_oa":false,"landing_page_url":"https://journals.sagepub.com/doi/10.1155/2013/927940","pdf_url":null,"source":{"id":"https://openalex.org/S4306401271","display_name":"RePEc: Research Papers in Economics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I77793887","host_organization_name":"Federal Reserve Bank of St. Louis","host_organization_lineage":["https://openalex.org/I77793887"],"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":"article"},{"id":"pmh:oai:doaj.org/article:ae665d8df86749ca9c4d28e40ded8724","is_oa":true,"landing_page_url":"https://doaj.org/article/ae665d8df86749ca9c4d28e40ded8724","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"International Journal of Distributed Sensor Networks, Vol 9 (2013)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2013/927940","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2013/927940","pdf_url":"https://journals.sagepub.com/doi/pdf/10.1155/2013/927940","source":{"id":"https://openalex.org/S64417657","display_name":"International Journal of Distributed Sensor Networks","issn_l":"1550-1329","issn":["1550-1329","1550-1477"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Distributed Sensor Networks","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.46000000834465027}],"awards":[{"id":"https://openalex.org/G6715618131","display_name":null,"funder_award_id":"2011CB302902","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8750606750","display_name":null,"funder_award_id":"61202066","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1990211353.pdf","grobid_xml":"https://content.openalex.org/works/W1990211353.grobid-xml"},"referenced_works_count":17,"referenced_works":["https://openalex.org/W583708331","https://openalex.org/W1485815177","https://openalex.org/W1588659085","https://openalex.org/W1970849344","https://openalex.org/W1973483062","https://openalex.org/W2029084939","https://openalex.org/W2035102364","https://openalex.org/W2067301942","https://openalex.org/W2099141754","https://openalex.org/W2106996050","https://openalex.org/W2116762767","https://openalex.org/W2117736292","https://openalex.org/W2143554828","https://openalex.org/W2144722063","https://openalex.org/W2162555816","https://openalex.org/W2166692930","https://openalex.org/W2170137209"],"related_works":["https://openalex.org/W2485872624","https://openalex.org/W2023578311","https://openalex.org/W1800639126","https://openalex.org/W1833397253","https://openalex.org/W2370273288","https://openalex.org/W2368441895","https://openalex.org/W3103272396","https://openalex.org/W4391304167","https://openalex.org/W4389256820","https://openalex.org/W2349544139"],"abstract_inverted_index":{"With":[0],"the":[1,17,42,60,84,90,107,118,125,132,149,159,166],"explosive":[2],"growth":[3],"and":[4,47,79,99,140,155,165],"wide-spread":[5],"use":[6],"of":[7,23,51,62,109,134,138,152,158,162],"smartphones":[8,58],"with":[9],"Wi-Fi":[10,20,28,53,66,76,91,135],"enabled,":[11],"people":[12],"are":[13],"used":[14],"to":[15,34,82,88,116],"accessing":[16],"internet":[18],"through":[19],"network":[21],"interfaces":[22],"smartphones.":[24],"Smartphones":[25],"periodically":[26],"transmit":[27],"messages,":[29],"even":[30],"when":[31],"not":[32],"connected":[33],"a":[35],"network.":[36],"In":[37,69],"this":[38,70],"paper,":[39,71],"we":[40,72,129],"describe":[41],"Mo-Fi":[43],"system":[44],"which":[45],"monitors":[46],"aggregates":[48],"large":[49],"numbers":[50],"continuous":[52],"message":[54],"transmissions":[55],"from":[56],"nearby":[57],"in":[59,114,124],"area":[61],"interest":[63],"using":[64],"nonintrusive":[65],"sniffer":[67],"sensors.":[68],"propose":[73],"an":[74],"optimized":[75],"channel":[77,95,151,161],"detection":[78,169],"selection":[80],"method":[81,104],"switch":[83],"best":[85,160],"channels":[86],"automatically":[87],"aggregate":[89],"messages":[92,136],"based":[93,105],"on":[94,106],"data":[96],"transmission":[97],"weights":[98],"human":[100,110,167],"presence":[101,168],"activity":[102],"classification":[103],"features":[108],"dwell":[111],"duration":[112],"sequences":[113],"order":[115],"evaluate":[117],"user":[119],"engagement":[120],"index.":[121],"By":[122],"deploying":[123],"real-world":[126],"office":[127],"environment,":[128],"found":[130],"that":[131],"performance":[133],"aggregation":[137],"CAOCA":[139],"CACFA":[141],"algorithms":[142,154],"is":[143],"over":[144],"3.8":[145],"times":[146],"higher":[147],"than":[148],"worst":[150],"FCA":[153,163],"about":[156],"76%":[157],"algorithms,":[164],"rate":[170],"reached":[171],"87.4%.":[172]},"counts_by_year":[{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}