{"id":"https://openalex.org/W4285818870","doi":"https://doi.org/10.1109/thms.2022.3188726","title":"Human Activity Recognition Using Smartphones With WiFi Signals","display_name":"Human Activity Recognition Using Smartphones With WiFi Signals","publication_year":2022,"publication_date":"2022-07-18","ids":{"openalex":"https://openalex.org/W4285818870","doi":"https://doi.org/10.1109/thms.2022.3188726"},"language":"en","primary_location":{"id":"doi:10.1109/thms.2022.3188726","is_oa":false,"landing_page_url":"https://doi.org/10.1109/thms.2022.3188726","pdf_url":null,"source":{"id":"https://openalex.org/S2476799526","display_name":"IEEE Transactions on Human-Machine Systems","issn_l":"2168-2291","issn":["2168-2291","2168-2305"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Human-Machine 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/A5070715535","display_name":"Guiping Lin","orcid":"https://orcid.org/0000-0003-4847-9746"},"institutions":[{"id":"https://openalex.org/I4472751","display_name":"Anhui Normal University","ror":"https://ror.org/05fsfvw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I4472751"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Guiping Lin","raw_affiliation_strings":["School of Computer and Information, Anhui Normal University, Wuhu, China"],"raw_orcid":"https://orcid.org/0000-0003-4847-9746","affiliations":[{"raw_affiliation_string":"School of Computer and Information, Anhui Normal University, Wuhu, China","institution_ids":["https://openalex.org/I4472751"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100756528","display_name":"Weiwei Jiang","orcid":"https://orcid.org/0000-0003-0953-5047"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"The University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Weiwei Jiang","raw_affiliation_strings":["University of Melbourne, Parkville, VIC, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Melbourne, Parkville, VIC, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102766864","display_name":"Sicong Xu","orcid":"https://orcid.org/0009-0006-0193-2696"},"institutions":[{"id":"https://openalex.org/I4472751","display_name":"Anhui Normal University","ror":"https://ror.org/05fsfvw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I4472751"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sicong Xu","raw_affiliation_strings":["School of Computer and Information, Anhui Normal University, Wuhu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer and Information, Anhui Normal University, Wuhu, China","institution_ids":["https://openalex.org/I4472751"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083871473","display_name":"Xiaobo Zhou","orcid":"https://orcid.org/0000-0002-7772-458X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiaobo Zhou","raw_affiliation_strings":["School of Computer Science and Technology, Tianjin University, Tianjin, China"],"raw_orcid":"https://orcid.org/0000-0002-7772-458X","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Tianjin University, Tianjin, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038153401","display_name":"Xing Guo","orcid":"https://orcid.org/0000-0003-2676-6744"},"institutions":[{"id":"https://openalex.org/I143868143","display_name":"Anhui University","ror":"https://ror.org/05th6yx34","country_code":"CN","type":"education","lineage":["https://openalex.org/I143868143"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xing Guo","raw_affiliation_strings":["School of Computer Science and Technology, Anhui University, Hefei, China"],"raw_orcid":"https://orcid.org/0000-0003-2676-6744","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Anhui University, Hefei, China","institution_ids":["https://openalex.org/I143868143"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101561261","display_name":"Yujun Zhu","orcid":"https://orcid.org/0000-0002-9094-0201"},"institutions":[{"id":"https://openalex.org/I4472751","display_name":"Anhui Normal University","ror":"https://ror.org/05fsfvw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I4472751"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yujun Zhu","raw_affiliation_strings":["School of Computer and Information, Anhui Normal University, Wuhu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer and Information, Anhui Normal University, Wuhu, China","institution_ids":["https://openalex.org/I4472751"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5051648467","display_name":"Xin He","orcid":"https://orcid.org/0000-0002-0125-4171"},"institutions":[{"id":"https://openalex.org/I4472751","display_name":"Anhui Normal University","ror":"https://ror.org/05fsfvw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I4472751"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin He","raw_affiliation_strings":["School of Computer and Information, Anhui Normal University, Wuhu, China"],"raw_orcid":"https://orcid.org/0000-0002-0125-4171","affiliations":[{"raw_affiliation_string":"School of Computer and Information, Anhui Normal University, Wuhu, China","institution_ids":["https://openalex.org/I4472751"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5070715535"],"corresponding_institution_ids":["https://openalex.org/I4472751"],"apc_list":null,"apc_paid":null,"fwci":5.6345,"has_fulltext":false,"cited_by_count":64,"citation_normalized_percentile":{"value":0.96827758,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":100},"biblio":{"volume":"53","issue":"1","first_page":"142","last_page":"153"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998999834060669,"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/T11158","display_name":"Wireless Networks and Protocols","score":0.9990000128746033,"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"}},{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9987999796867371,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8070546388626099},{"id":"https://openalex.org/keywords/firmware","display_name":"Firmware","score":0.6942389011383057},{"id":"https://openalex.org/keywords/convolutional-neural-network","display_name":"Convolutional neural network","score":0.6038419604301453},{"id":"https://openalex.org/keywords/router","display_name":"Router","score":0.56806480884552},{"id":"https://openalex.org/keywords/gesture-recognition","display_name":"Gesture recognition","score":0.5514260530471802},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.5486687421798706},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5361822247505188},{"id":"https://openalex.org/keywords/gesture","display_name":"Gesture","score":0.45884522795677185},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.45198336243629456},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.339419960975647},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.14417660236358643}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8070546388626099},{"id":"https://openalex.org/C67212190","wikidata":"https://www.wikidata.org/wiki/Q104851","display_name":"Firmware","level":2,"score":0.6942389011383057},{"id":"https://openalex.org/C81363708","wikidata":"https://www.wikidata.org/wiki/Q17084460","display_name":"Convolutional neural network","level":2,"score":0.6038419604301453},{"id":"https://openalex.org/C2775896111","wikidata":"https://www.wikidata.org/wiki/Q642560","display_name":"Router","level":2,"score":0.56806480884552},{"id":"https://openalex.org/C159437735","wikidata":"https://www.wikidata.org/wiki/Q1519524","display_name":"Gesture recognition","level":3,"score":0.5514260530471802},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.5486687421798706},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5361822247505188},{"id":"https://openalex.org/C207347870","wikidata":"https://www.wikidata.org/wiki/Q371174","display_name":"Gesture","level":2,"score":0.45884522795677185},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.45198336243629456},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.339419960975647},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.14417660236358643},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/thms.2022.3188726","is_oa":false,"landing_page_url":"https://doi.org/10.1109/thms.2022.3188726","pdf_url":null,"source":{"id":"https://openalex.org/S2476799526","display_name":"IEEE Transactions on Human-Machine Systems","issn_l":"2168-2291","issn":["2168-2291","2168-2305"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Human-Machine Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.6600000262260437,"id":"https://metadata.un.org/sdg/16"}],"awards":[{"id":"https://openalex.org/G7049704255","display_name":null,"funder_award_id":"1908085MF214","funder_id":"https://openalex.org/F4320334897","funder_display_name":"Natural Science Foundation of Anhui Province"},{"id":"https://openalex.org/G7116933434","display_name":null,"funder_award_id":"61702011","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8148547794","display_name":null,"funder_award_id":"62072004","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"},{"id":"https://openalex.org/F4320334897","display_name":"Natural Science Foundation of Anhui Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1628685102","https://openalex.org/W1972743861","https://openalex.org/W1999644243","https://openalex.org/W2002475595","https://openalex.org/W2029790910","https://openalex.org/W2031972300","https://openalex.org/W2032115476","https://openalex.org/W2059094808","https://openalex.org/W2064675550","https://openalex.org/W2086499312","https://openalex.org/W2089695767","https://openalex.org/W2095396347","https://openalex.org/W2101234009","https://openalex.org/W2102159398","https://openalex.org/W2128286222","https://openalex.org/W2141336889","https://openalex.org/W2147780311","https://openalex.org/W2423260985","https://openalex.org/W2469690627","https://openalex.org/W2517608320","https://openalex.org/W2608873842","https://openalex.org/W2744894082","https://openalex.org/W2794264461","https://openalex.org/W2794843057","https://openalex.org/W2899145720","https://openalex.org/W2902032143","https://openalex.org/W2943224507","https://openalex.org/W2952586546","https://openalex.org/W2965243934","https://openalex.org/W2970344707","https://openalex.org/W3037053819","https://openalex.org/W3086632078","https://openalex.org/W3088369757","https://openalex.org/W3094515045","https://openalex.org/W3095460855","https://openalex.org/W3096106062","https://openalex.org/W3109733158","https://openalex.org/W3142631014","https://openalex.org/W3194620979","https://openalex.org/W4247767684","https://openalex.org/W4298131378","https://openalex.org/W6603071982","https://openalex.org/W6668759447","https://openalex.org/W6669176017","https://openalex.org/W6675354045","https://openalex.org/W6679901780"],"related_works":["https://openalex.org/W2582981600","https://openalex.org/W4400609513","https://openalex.org/W2902873204","https://openalex.org/W2185750513","https://openalex.org/W2010878661","https://openalex.org/W3147379364","https://openalex.org/W2026258298","https://openalex.org/W3204639664","https://openalex.org/W2970836791","https://openalex.org/W2989699735"],"abstract_inverted_index":{"In":[0],"this":[1],"article,":[2],"we":[3,80,128],"present":[4],"a":[5,8,26,167,205,214,224],"work":[6],"using":[7,71],"smartphone":[9,33],"with":[10,19,36,59,87,157],"an":[11,158],"off-the-shelf":[12],"WiFi":[13,30,44],"router":[14,23],"for":[15,28,42,109,126,172,180],"human":[16,61,85,155,210],"activity":[17,211],"recognition":[18,212],"various":[20,113],"scales.":[21],"The":[22,32,146],"serves":[24],"as":[25,230],"hotspot":[27],"transmitting":[29],"packets.":[31],"is":[34],"configured":[35],"customized":[37],"firmware":[38],"and":[39,63,97,105,116,142,217],"developed":[40],"software":[41],"capturing":[43],"channel":[45],"state":[46],"information":[47],"(CSI)":[48],"data.":[49],"We":[50,101,183],"extract":[51],"the":[52,55,65,69,77,186,189,195,200],"features":[53,66],"from":[54],"CSI":[56],"data":[57,110,120],"associated":[58],"specific":[60],"activities,":[62],"utilize":[64],"to":[67],"classify":[68],"activities":[70,86,156],"machine":[72,132,190],"learning":[73,133,191],"models.":[74],"To":[75],"evaluate":[76],"system":[78,151,165,208],"performance,":[79],"test":[81],"20":[82],"types":[83],"of":[84,161,170,188,227],"different":[88],"scales":[89],"including":[90,135],"seven":[91],"small":[92],"motions,":[93,96,196],"four":[94],"medium":[95],"nine":[98],"big":[99],"motions.":[100],"recruit":[102],"60":[103],"participants":[104],"spend":[106],"140":[107],"hours":[108],"collection":[111],"at":[112],"experimental":[114],"settings,":[115],"have":[117],"36":[118],"000":[119],"points":[121],"collected":[122],"in":[123,193,213],"total.":[124],"Furthermore,":[125],"comparison,":[127],"adopt":[129],"three":[130],"distinct":[131],"models,":[134],"convolutional":[136],"neural":[137],"networks":[138],"(CNNs),":[139],"decision":[140],"tree,":[141],"long":[143],"short-term":[144],"memory.":[145],"results":[147],"demonstrate":[148],"that":[149,176,220],"our":[150,164,207],"can":[152,221],"predict":[153],"these":[154],"overall":[159],"accuracy":[160,169],"97.25%.":[162],"Specifically,":[163],"achieves":[166,199],"mean":[168],"97.57%":[171],"recognizing":[173],"small-scale":[174],"motions":[175],"are":[177],"particularly":[178],"useful":[179],"gesture":[181,231],"recognition.":[182],"then":[184],"consider":[185],"adaptability":[187],"algorithms":[192],"classifying":[194],"where":[197],"CNN":[198],"best":[201],"predicting":[202],"accuracy.":[203],"As":[204],"result,":[206],"enables":[209],"more":[215],"ubiquitous":[216],"mobile":[218],"fashion":[219],"potentially":[222],"enhance":[223],"wide":[225],"range":[226],"applications":[228],"such":[229],"control,":[232],"sign":[233],"language":[234],"recognition,":[235],"etc.":[236]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":27},{"year":2024,"cited_by_count":18},{"year":2023,"cited_by_count":15},{"year":2022,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}