{"id":"https://openalex.org/W4285999816","doi":"https://doi.org/10.1145/3519302","title":"Toward Device-free and User-independent Fall Detection Using Floor Vibration","display_name":"Toward Device-free and User-independent Fall Detection Using Floor Vibration","publication_year":2022,"publication_date":"2022-07-20","ids":{"openalex":"https://openalex.org/W4285999816","doi":"https://doi.org/10.1145/3519302"},"language":"en","primary_location":{"id":"doi:10.1145/3519302","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3519302","pdf_url":null,"source":{"id":"https://openalex.org/S170502224","display_name":"ACM Transactions on Sensor Networks","issn_l":"1550-4859","issn":["1550-4859","1550-4867"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Sensor Networks","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/A5001188748","display_name":"Kaishun Wu","orcid":"https://orcid.org/0000-0003-2216-0737"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Kaishun Wu","raw_affiliation_strings":["Shenzhen University, Shenzhen City, Guangdong Province, China"],"raw_orcid":"https://orcid.org/0000-0003-2216-0737","affiliations":[{"raw_affiliation_string":"Shenzhen University, Shenzhen City, Guangdong Province, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074999536","display_name":"Yandao Huang","orcid":"https://orcid.org/0000-0001-7547-3038"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yandao Huang","raw_affiliation_strings":["Shenzhen University, Shenzhen City, Guangdong Province, China"],"raw_orcid":"https://orcid.org/0000-0001-7547-3038","affiliations":[{"raw_affiliation_string":"Shenzhen University, Shenzhen City, Guangdong Province, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031304375","display_name":"Minghui Qiu","orcid":"https://orcid.org/0000-0001-8632-8282"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Minghui Qiu","raw_affiliation_strings":["Shenzhen University, Shenzhen City, Guangdong Province, China"],"raw_orcid":"https://orcid.org/0000-0001-8632-8282","affiliations":[{"raw_affiliation_string":"Shenzhen University, Shenzhen City, Guangdong Province, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045267283","display_name":"Zhencan Peng","orcid":"https://orcid.org/0000-0003-4182-0075"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhenkan Peng","raw_affiliation_strings":["Shenzhen University, Shenzhen City, Guangdong Province, China"],"raw_orcid":"https://orcid.org/0000-0003-4182-0075","affiliations":[{"raw_affiliation_string":"Shenzhen University, Shenzhen City, Guangdong Province, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100364381","display_name":"Lu Wang","orcid":"https://orcid.org/0000-0001-6345-3873"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lu Wang","raw_affiliation_strings":["Shenzhen University, Shenzhen City, Guangdong Province, China"],"raw_orcid":"https://orcid.org/0000-0001-6345-3873","affiliations":[{"raw_affiliation_string":"Shenzhen University, Shenzhen City, Guangdong Province, China","institution_ids":["https://openalex.org/I180726961"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5001188748"],"corresponding_institution_ids":["https://openalex.org/I180726961"],"apc_list":null,"apc_paid":null,"fwci":0.6089,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.67032726,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"19","issue":"1","first_page":"1","last_page":"20"},"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/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"}},{"id":"https://openalex.org/T12740","display_name":"Gait Recognition and Analysis","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/alarm","display_name":"ALARM","score":0.7691240906715393},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7650932669639587},{"id":"https://openalex.org/keywords/hidden-markov-model","display_name":"Hidden Markov model","score":0.7436424493789673},{"id":"https://openalex.org/keywords/geophone","display_name":"Geophone","score":0.6258611679077148},{"id":"https://openalex.org/keywords/constant-false-alarm-rate","display_name":"Constant false alarm rate","score":0.5864379405975342},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.579634428024292},{"id":"https://openalex.org/keywords/false-alarm","display_name":"False alarm","score":0.5426443815231323},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.46646153926849365},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.4179121255874634},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.39027726650238037},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11572882533073425}],"concepts":[{"id":"https://openalex.org/C2779119184","wikidata":"https://www.wikidata.org/wiki/Q294350","display_name":"ALARM","level":2,"score":0.7691240906715393},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7650932669639587},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.7436424493789673},{"id":"https://openalex.org/C54187759","wikidata":"https://www.wikidata.org/wiki/Q361564","display_name":"Geophone","level":2,"score":0.6258611679077148},{"id":"https://openalex.org/C77052588","wikidata":"https://www.wikidata.org/wiki/Q644307","display_name":"Constant false alarm rate","level":2,"score":0.5864379405975342},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.579634428024292},{"id":"https://openalex.org/C2776836416","wikidata":"https://www.wikidata.org/wiki/Q1364844","display_name":"False alarm","level":2,"score":0.5426443815231323},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.46646153926849365},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.4179121255874634},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.39027726650238037},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11572882533073425},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.0},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3519302","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3519302","pdf_url":null,"source":{"id":"https://openalex.org/S170502224","display_name":"ACM Transactions on Sensor Networks","issn_l":"1550-4859","issn":["1550-4859","1550-4867"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Sensor Networks","raw_type":"journal-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-125825","is_oa":false,"landing_page_url":"https://repository.hkust.edu.hk/ir/Record/1783.1-125825","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2754935588","display_name":null,"funder_award_id":"2019KCXTD005, R2020A045","funder_id":"https://openalex.org/F4320326279","funder_display_name":"Department of Education of Guangdong Province"}],"funders":[{"id":"https://openalex.org/F4320326279","display_name":"Department of Education of Guangdong Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W304676660","https://openalex.org/W1588659085","https://openalex.org/W1607663175","https://openalex.org/W1979045895","https://openalex.org/W1983705368","https://openalex.org/W1985006379","https://openalex.org/W2013476441","https://openalex.org/W2023756500","https://openalex.org/W2028656089","https://openalex.org/W2031503222","https://openalex.org/W2032236390","https://openalex.org/W2053782647","https://openalex.org/W2059584741","https://openalex.org/W2064675550","https://openalex.org/W2089916011","https://openalex.org/W2095396347","https://openalex.org/W2100716893","https://openalex.org/W2102699948","https://openalex.org/W2115403315","https://openalex.org/W2153635508","https://openalex.org/W2319308093","https://openalex.org/W2338892592","https://openalex.org/W2340862004","https://openalex.org/W2465633348","https://openalex.org/W2595691399","https://openalex.org/W2790071765","https://openalex.org/W2911366381","https://openalex.org/W2967853550","https://openalex.org/W2980700634","https://openalex.org/W2995669151","https://openalex.org/W3014415234","https://openalex.org/W3021765248","https://openalex.org/W3042983365","https://openalex.org/W3096555592","https://openalex.org/W3151647019","https://openalex.org/W3151953067","https://openalex.org/W4236105155"],"related_works":["https://openalex.org/W2160855022","https://openalex.org/W2091895121","https://openalex.org/W1983393909","https://openalex.org/W3121346907","https://openalex.org/W2040150569","https://openalex.org/W4379535633","https://openalex.org/W2468095590","https://openalex.org/W2132174924","https://openalex.org/W1911540634","https://openalex.org/W2013909972"],"abstract_inverted_index":{"The":[0],"inevitable":[1],"aging":[2],"trend":[3],"of":[4,11,147,204],"the":[5,14,18,53,97,120,133,152,170,191,197,202,206],"world\u2019s":[6],"population":[7],"brings":[8],"a":[9,39,65,79,144,158,186],"lot":[10],"challenges":[12],"to":[13,25,118,166,212],"health":[15],"care":[16],"for":[17,29,49,72],"elderly.":[19],"For":[20],"example,":[21],"it":[22,102],"is":[23,45,116,210],"difficult":[24],"guarantee":[26],"timely":[27],"rescue":[28],"single-resided":[30],"elders":[31],"who":[32],"fall":[33,42,55,81,121],"at":[34],"home.":[35],"Under":[36],"this":[37,75],"circumstance,":[38],"reliable":[40],"automatic":[41],"detection":[43,56,82,188],"machine":[44],"in":[46,141,168],"great":[47],"need":[48],"emergent":[50],"rescue.":[51],"However,":[52],"state-of-the-art":[54],"systems":[57],"are":[58],"suffering":[59],"from":[60,132],"serious":[61],"privacy":[62],"concerns,":[63],"having":[64],"high":[66],"false":[67,153,207],"alarm,":[68],"or":[69],"being":[70],"cumbersome":[71],"users.":[73],"In":[74],"article,":[76],"we":[77,156],"propose":[78,157],"device-free":[80],"system,":[83],"namely":[84],"G-Fall,":[85],"based":[86],"on":[87,178,190,196],"floor":[88,105,193],"vibration":[89,106],"collected":[90],"by":[91],"geophone":[92],"sensors.":[93],"We":[94],"first":[95],"decompose":[96],"falling":[98],"mode":[99],"and":[100,124,194],"characterize":[101],"with":[103,201],"time-dependent":[104],"features.":[107],"By":[108],"leveraging":[109],"Hidden":[110],"Markov":[111],"Model":[112],"(HMM),":[113],"our":[114],"system":[115],"able":[117],"detect":[119],"event":[122],"precisely":[123],"achieve":[125],"user-independent":[126],"detection.":[127],"It":[128],"requires":[129],"no":[130],"training":[131,148],"elderly":[134],"but":[135],"only":[136],"an":[137],"HMM":[138],"template":[139],"learned":[140],"advance":[142],"through":[143],"small":[145],"number":[146],"samples.":[149],"To":[150],"reduce":[151],"alarm":[154,208],"rate,":[155],"novel":[159],"reconfirmation":[160],"mechanism":[161],"using":[162],"Energy-of-Arrival":[163],"(EoA)":[164],"positioning":[165],"assist":[167],"detecting":[169],"human":[171,180],"fall.":[172],"Extensive":[173],"experiments":[174],"have":[175],"been":[176],"conducted":[177],"24":[179],"subjects.":[181],"On":[182],"average,":[183],"G-Fall":[184],"achieves":[185],"95.74%":[187],"precision":[189],"anti-static":[192],"97.36%":[195],"concrete":[198],"floor.":[199],"Furthermore,":[200],"assistance":[203],"EoA,":[205],"rate":[209],"reduced":[211],"nearly":[213],"0%.":[214]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
