{"id":"https://openalex.org/W2904515736","doi":"https://doi.org/10.1109/upinlbs.2018.8559940","title":"Seamless Navigation Methodology optimized for Indoor/Outdoor Detection Based on WIFI","display_name":"Seamless Navigation Methodology optimized for Indoor/Outdoor Detection Based on WIFI","publication_year":2018,"publication_date":"2018-03-01","ids":{"openalex":"https://openalex.org/W2904515736","doi":"https://doi.org/10.1109/upinlbs.2018.8559940","mag":"2904515736"},"language":"en","primary_location":{"id":"doi:10.1109/upinlbs.2018.8559940","is_oa":false,"landing_page_url":"https://doi.org/10.1109/upinlbs.2018.8559940","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 Ubiquitous Positioning, Indoor Navigation and Location-Based Services (UPINLBS)","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/A5002447822","display_name":"Heze Huang","orcid":null},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Heze Huang","raw_affiliation_strings":["Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101524100","display_name":"Qinghua Zeng","orcid":"https://orcid.org/0000-0002-3660-3212"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qinghua Zeng","raw_affiliation_strings":["Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029924052","display_name":"Ruizhi Chen","orcid":"https://orcid.org/0000-0001-6683-2342"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruizhi Chen","raw_affiliation_strings":["Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033621482","display_name":"Qian Meng","orcid":"https://orcid.org/0000-0002-2149-1086"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qian Meng","raw_affiliation_strings":["Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101929678","display_name":"Jingxian Wang","orcid":"https://orcid.org/0000-0001-9106-6344"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]},{"id":"https://openalex.org/I4210118728","display_name":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing","ror":"https://ror.org/02bpap860","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210118728"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingxian Wang","raw_affiliation_strings":["State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, Wuhan, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I4210118728","https://openalex.org/I37461747"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056618688","display_name":"Shijie Zeng","orcid":"https://orcid.org/0000-0001-8116-3845"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shijie Zeng","raw_affiliation_strings":["Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5002447822"],"corresponding_institution_ids":["https://openalex.org/I9842412"],"apc_list":null,"apc_paid":null,"fwci":0.6522,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.72311352,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9995999932289124,"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":0.9995999932289124,"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/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9815000295639038,"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":0.9783999919891357,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7734567523002625},{"id":"https://openalex.org/keywords/adaboost","display_name":"AdaBoost","score":0.7551554441452026},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.5990030169487},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.5875657796859741},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.44776707887649536}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7734567523002625},{"id":"https://openalex.org/C141404830","wikidata":"https://www.wikidata.org/wiki/Q2823869","display_name":"AdaBoost","level":3,"score":0.7551554441452026},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5990030169487},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.5875657796859741},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.44776707887649536}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/upinlbs.2018.8559940","is_oa":false,"landing_page_url":"https://doi.org/10.1109/upinlbs.2018.8559940","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 Ubiquitous Positioning, Indoor Navigation and Location-Based Services (UPINLBS)","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/W1440733667","https://openalex.org/W2070580791","https://openalex.org/W2105281760","https://openalex.org/W2145160175","https://openalex.org/W2286372428","https://openalex.org/W2412879139","https://openalex.org/W2525761208","https://openalex.org/W2766892407","https://openalex.org/W2769039391","https://openalex.org/W6727848311"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W3039673966","https://openalex.org/W2390279801","https://openalex.org/W2002351707","https://openalex.org/W4293699968","https://openalex.org/W2035096001","https://openalex.org/W2358668433","https://openalex.org/W4312843811","https://openalex.org/W2376932109","https://openalex.org/W2001405890"],"abstract_inverted_index":{"Smartphones":[0],"with":[1],"multiple":[2],"sensors":[3],"become":[4],"more":[5,210],"popular":[6],"in":[7,62,118,139,157],"contemporary":[8],"society.":[9],"The":[10,65,112,199],"LBS":[11,26],"(Location-Based":[12],"Service),":[13],"based":[14,57],"on":[15,58],"smartphones,":[16],"develops":[17],"rapidly.":[18],"One":[19],"of":[20,38,72,105,125,128,145,166,206,223],"the":[21,30,36,39,76,81,86,90,95,102,106,122,143,149,163,172,176,183,189,193,204,218,221,224],"most":[22],"important":[23],"prerequisite":[24],"for":[25,54],"is":[27,60,116,132,179,186,209],"to":[28,84,93,134,141,188],"determine":[29],"indoor":[31,107],"or":[32,181],"outdoor":[33,109],"environment":[34,178,191],"and":[35,108,192,213,220],"location":[37],"users,":[40],"so":[41,161],"that":[42,162,175,203],"different":[43],"service":[44],"information":[45],"can":[46,168,196,215],"be":[47,169,197],"offered.":[48],"A":[49],"seamless":[50,110,226],"navigation":[51,184,194],"methodology":[52],"optimized":[53,150],"indoor/outdoor":[55,96,207,225],"detection":[56,208],"WIFI":[59,73],"proposed":[61],"this":[63,119],"paper.":[64],"RSSI":[66,123],"(Received":[67],"Signal":[68],"Strength":[69],"Indication)":[70],"values":[71],"collected":[74],"by":[75,80],"smartphone":[77],"are":[78],"used":[79],"AdaBoost":[82,114,151],"algorithm":[83],"train":[85],"weak":[87,137,155],"classifier":[88,92],"into":[89],"strong":[91],"distinguish":[94],"environment,":[97],"as":[98,100],"well":[99],"improving":[101],"overall":[103],"accuracy":[104,195,205,222],"navigation.":[111,227],"classic":[113],"method":[115,152],"improved":[117],"paper:":[120],"First,":[121],"value":[124],"a":[126,136],"pair":[127],"APs":[129,167],"(Access":[130],"Points)":[131],"compared":[133],"construct":[135],"classifier,":[138],"order":[140],"solve":[142],"problem":[144],"device":[146,173],"heterogeneity;":[147],"Second,":[148],"adding":[153],"several":[154],"classifiers":[156],"each":[158],"training":[159],"phase,":[160],"abnormal":[164],"conditions":[165],"reduced.":[170],"When":[171],"detects":[174],"current":[177,190],"indoors":[180],"outdoors,":[182],"mode":[185],"adapted":[187],"improved.":[198],"experiment":[200],"results":[201],"indicate":[202],"than":[211],"97%,":[212],"it":[214],"significantly":[216],"improve":[217],"continuity":[219]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1}],"updated_date":"2026-03-25T13:04:00.132906","created_date":"2025-10-10T00:00:00"}