{"id":"https://openalex.org/W1997369581","doi":"https://doi.org/10.1109/vtcfall.2012.6399379","title":"Activity recognition with implicit context classification","display_name":"Activity recognition with implicit context classification","publication_year":2012,"publication_date":"2012-09-01","ids":{"openalex":"https://openalex.org/W1997369581","doi":"https://doi.org/10.1109/vtcfall.2012.6399379","mag":"1997369581"},"language":"en","primary_location":{"id":"doi:10.1109/vtcfall.2012.6399379","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2012.6399379","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Vehicular Technology Conference (VTC Fall)","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/A5045150110","display_name":"Stephan Sigg","orcid":"https://orcid.org/0000-0001-6118-3355"},"institutions":[{"id":"https://openalex.org/I184597095","display_name":"National Institute of Informatics","ror":"https://ror.org/04ksd4g47","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1319490839","https://openalex.org/I184597095","https://openalex.org/I4210158934"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Stephan Sigg","raw_affiliation_strings":["Information Systems Architecture Science Research Division, National Institute of Informatics, Tokyo, Japan","Inf. Syst. Archit. Sci. Res. Div., Nat. Inst. of Inf. (NII), Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Information Systems Architecture Science Research Division, National Institute of Informatics, Tokyo, Japan","institution_ids":["https://openalex.org/I184597095"]},{"raw_affiliation_string":"Inf. Syst. Archit. Sci. Res. Div., Nat. Inst. of Inf. (NII), Tokyo, Japan","institution_ids":["https://openalex.org/I184597095"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089294425","display_name":"Lei Zhong","orcid":"https://orcid.org/0000-0003-4384-2825"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Lei Zhong","raw_affiliation_strings":["New Generation Network Laboratory, National Institute of Information and Communications Technology, Tokyo, Japan","New Generation Network Lab., Nat. Inst. of Inf. & Commun. Technol. (NICT), Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"New Generation Network Laboratory, National Institute of Information and Communications Technology, Tokyo, Japan","institution_ids":["https://openalex.org/I90023481"]},{"raw_affiliation_string":"New Generation Network Lab., Nat. Inst. of Inf. & Commun. Technol. (NICT), Tokyo, Japan","institution_ids":["https://openalex.org/I90023481"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037098061","display_name":"Yusheng Ji","orcid":"https://orcid.org/0000-0003-4364-8491"},"institutions":[{"id":"https://openalex.org/I184597095","display_name":"National Institute of Informatics","ror":"https://ror.org/04ksd4g47","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1319490839","https://openalex.org/I184597095","https://openalex.org/I4210158934"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusheng Ji","raw_affiliation_strings":["Information Systems Architecture Science Research Division, National Institute of Informatics, Tokyo, Japan","Inf. Syst. Archit. Sci. Res. Div., Nat. Inst. of Inf. (NII), Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Information Systems Architecture Science Research Division, National Institute of Informatics, Tokyo, Japan","institution_ids":["https://openalex.org/I184597095"]},{"raw_affiliation_string":"Inf. Syst. Archit. Sci. Res. Div., Nat. Inst. of Inf. (NII), Tokyo, Japan","institution_ids":["https://openalex.org/I184597095"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9988999962806702,"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":0.9988999962806702,"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/T10080","display_name":"Energy Efficient Wireless Sensor Networks","score":0.9983999729156494,"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/T10502","display_name":"Advanced Memory and Neural Computing","score":0.9968000054359436,"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":0.7860289812088013},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.661693811416626},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.6428627967834473},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6350184082984924},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.611091673374176},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.6013373136520386},{"id":"https://openalex.org/keywords/encoding","display_name":"Encoding (memory)","score":0.6001302003860474},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5581492185592651},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5501136779785156},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.47626158595085144},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.41511163115501404},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3751427233219147},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.32031843066215515},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.30126628279685974},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.23950809240341187},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12206369638442993},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.08528468012809753}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7860289812088013},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.661693811416626},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.6428627967834473},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6350184082984924},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.611091673374176},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.6013373136520386},{"id":"https://openalex.org/C125411270","wikidata":"https://www.wikidata.org/wiki/Q18653","display_name":"Encoding (memory)","level":2,"score":0.6001302003860474},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5581492185592651},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5501136779785156},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.47626158595085144},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.41511163115501404},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3751427233219147},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.32031843066215515},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.30126628279685974},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.23950809240341187},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12206369638442993},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.08528468012809753},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtcfall.2012.6399379","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcfall.2012.6399379","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Vehicular Technology Conference (VTC Fall)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320875","display_name":"Deutscher Akademischer Austauschdienst","ror":"https://ror.org/039djdh30"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W101771737","https://openalex.org/W1677905530","https://openalex.org/W2006370340","https://openalex.org/W2009086942","https://openalex.org/W2097427314","https://openalex.org/W2104879130","https://openalex.org/W2112130409","https://openalex.org/W2117752571","https://openalex.org/W2133999954","https://openalex.org/W2147124620","https://openalex.org/W2151034334","https://openalex.org/W2164692160","https://openalex.org/W2753933954","https://openalex.org/W2949737820","https://openalex.org/W2951012689","https://openalex.org/W4239875977","https://openalex.org/W6637441032","https://openalex.org/W6684976770","https://openalex.org/W6763620326"],"related_works":["https://openalex.org/W17155033","https://openalex.org/W3207760230","https://openalex.org/W1496222301","https://openalex.org/W1590307681","https://openalex.org/W2536018345","https://openalex.org/W4312814274","https://openalex.org/W4285370786","https://openalex.org/W2296488620","https://openalex.org/W2358353312","https://openalex.org/W2353836703"],"abstract_inverted_index":{"We":[0,62],"exploit":[1],"activity":[2],"recognition":[3,13],"from":[4],"RF-channels.":[5],"Exceeding":[6],"current":[7],"studies,":[8],"we":[9,27,48,85],"discuss":[10,49],"an":[11],"implicit":[12,45,96],"scheme":[14,33],"to":[15,52,71],"compute":[16],"context":[17],"classifications":[18],"with":[19,89],"a":[20,29,64,83,90],"network":[21],"of":[22,92],"wireless":[23,40,60],"nodes.":[24],"In":[25,82],"particular,":[26],"propose":[28],"networked":[30],"adhoc":[31],"classification":[32],"that":[34],"utilises":[35],"the":[36,39,50,59,87],"RF-features":[37],"on":[38,58],"channel":[41],"among":[42],"nodes":[43],"as":[44],"inputs.":[46],"Furthermore,":[47],"possibility":[51],"execute":[53],"mathematical":[54],"operations":[55,97],"during":[56,79,98],"transmission":[57],"channel.":[61],"present":[63],"data":[65],"encoding":[66],"which":[67],"can":[68],"be":[69],"utilised":[70],"implicitly":[72],"add,":[73],"multiply,":[74],"subtract":[75],"or":[76],"divide":[77],"values":[78,93],"simultaneous":[80],"transmission.":[81,99],"simulation,":[84],"demonstrate":[86],"computation":[88],"set":[91],"by":[94],"these":[95]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}