{"id":"https://openalex.org/W2790414609","doi":"https://doi.org/10.3390/informatics5020027","title":"A Comprehensive Study of Activity Recognition Using Accelerometers","display_name":"A Comprehensive Study of Activity Recognition Using Accelerometers","publication_year":2018,"publication_date":"2018-05-30","ids":{"openalex":"https://openalex.org/W2790414609","doi":"https://doi.org/10.3390/informatics5020027","mag":"2790414609"},"language":"en","primary_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/informatics5020027","pdf_url":"https://www.mdpi.com/2227-9709/5/2/27/pdf?version=1527678656","source":{"id":"https://openalex.org/S2738238905","display_name":"Informatics","issn_l":"2227-9709","issn":["2227-9709"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"type":"article","type_crossref":"journal-article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2227-9709/5/2/27/pdf?version=1527678656","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5089125860","display_name":"Niall Twomey","orcid":"https://orcid.org/0000-0002-3225-2654"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"Niall Twomey","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058474860","display_name":"Tom Diethe","orcid":"https://orcid.org/0000-0002-0776-5407"},"institutions":[{"id":"https://openalex.org/I4210123934","display_name":"Amazon (United Kingdom)","ror":"https://ror.org/02xey9634","country_code":"GB","type":"company","lineage":["https://openalex.org/I4210123934"]},{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Tom Diethe","raw_affiliation_strings":["Amazon Research, Cambridge CB3 0RD, UK","School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"Amazon Research, Cambridge CB3 0RD, UK","institution_ids":["https://openalex.org/I4210123934"]},{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018416804","display_name":"Xenofon Fafoutis","orcid":"https://orcid.org/0000-0002-9871-0013"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Xenofon Fafoutis","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078210075","display_name":"Atis Elsts","orcid":"https://orcid.org/0000-0001-5150-272X"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Atis Elsts","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077095301","display_name":"Ryan McConville","orcid":"https://orcid.org/0000-0002-7708-3110"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ryan McConville","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057936560","display_name":"Peter Flach","orcid":"https://orcid.org/0000-0001-6857-5810"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Peter Flach","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062152110","display_name":"Ian Craddock","orcid":"https://orcid.org/0000-0001-6552-8541"},"institutions":[{"id":"https://openalex.org/I36234482","display_name":"University of Bristol","ror":"https://ror.org/0524sp257","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ian Craddock","raw_affiliation_strings":["School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Electrical and Electronic Engineering, and Engineering Mathematics, University of Bristol, Bristol BS8 1UB, UK","institution_ids":["https://openalex.org/I36234482"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5089125860"],"corresponding_institution_ids":["https://openalex.org/I36234482"],"apc_list":{"value":1600,"currency":"CHF","value_usd":1732,"provenance":"doaj"},"apc_paid":{"value":1600,"currency":"CHF","value_usd":1732,"provenance":"doaj"},"fwci":10.181,"has_fulltext":true,"fulltext_origin":"pdf","cited_by_count":115,"citation_normalized_percentile":{"value":0.999937,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"5","issue":"2","first_page":"27","last_page":"27"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9999,"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":0.9999,"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/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9979,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.997,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/activity-recognition","display_name":"Activity Recognition","score":0.53381115},{"id":"https://openalex.org/keywords/empirical-research","display_name":"Empirical Research","score":0.43961743}],"concepts":[{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.89728373},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6677317},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.64042985},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.58287805},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.53381115},{"id":"https://openalex.org/C133462117","wikidata":"https://www.wikidata.org/wiki/Q4929239","display_name":"Data collection","level":2,"score":0.50656617},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.4989729},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.48322305},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.48249817},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4492775},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.43961743},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.43805474},{"id":"https://openalex.org/C81917197","wikidata":"https://www.wikidata.org/wiki/Q628760","display_name":"Selection (genetic algorithm)","level":2,"score":0.42213726},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.075597554},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/informatics5020027","pdf_url":"https://www.mdpi.com/2227-9709/5/2/27/pdf?version=1527678656","source":{"id":"https://openalex.org/S2738238905","display_name":"Informatics","issn_l":"2227-9709","issn":["2227-9709"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},{"is_oa":false,"landing_page_url":"https://doaj.org/article/87177d4613a14330a5ce4b4461a56fee","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},{"is_oa":true,"landing_page_url":"https://hdl.handle.net/1983/3fe95916-43d5-4964-af42-2014429c8007","pdf_url":"https://research-information.bris.ac.uk/files/157785140/informatics_05_00027.pdf","source":{"id":"https://openalex.org/S4306400895","display_name":"Bristol Research (University of Bristol)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I36234482","host_organization_name":"University of Bristol","host_organization_lineage":["https://openalex.org/I36234482"],"host_organization_lineage_names":["University of Bristol"],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false},{"is_oa":true,"landing_page_url":"https://research-information.bris.ac.uk/ws/files/157785140/informatics_05_00027.pdf","pdf_url":"https://research-information.bris.ac.uk/ws/files/157785140/informatics_05_00027.pdf","source":{"id":"https://openalex.org/S4306400895","display_name":"Bristol Research (University of Bristol)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I36234482","host_organization_name":"University of Bristol","host_organization_lineage":["https://openalex.org/I36234482"],"host_organization_lineage_names":["University of Bristol"],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false}],"best_oa_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.3390/informatics5020027","pdf_url":"https://www.mdpi.com/2227-9709/5/2/27/pdf?version=1527678656","source":{"id":"https://openalex.org/S2738238905","display_name":"Informatics","issn_l":"2227-9709","issn":["2227-9709"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"sustainable_development_goals":[{"display_name":"Partnerships for the goals","score":0.45,"id":"https://metadata.un.org/sdg/17"}],"grants":[],"datasets":[],"versions":[],"referenced_works_count":68,"referenced_works":["https://openalex.org/W1575873342","https://openalex.org/W1840860027","https://openalex.org/W1851520833","https://openalex.org/W1969860714","https://openalex.org/W1973221871","https://openalex.org/W1983447325","https://openalex.org/W1986830331","https://openalex.org/W1991468035","https://openalex.org/W1999712889","https://openalex.org/W2002558805","https://openalex.org/W2010838375","https://openalex.org/W2017634428","https://openalex.org/W2023302299","https://openalex.org/W2026297770","https://openalex.org/W2035877237","https://openalex.org/W2057105676","https://openalex.org/W2063598276","https://openalex.org/W2063626925","https://openalex.org/W2063781553","https://openalex.org/W2064657839","https://openalex.org/W2064675550","https://openalex.org/W2073401630","https://openalex.org/W2077964287","https://openalex.org/W2093467859","https://openalex.org/W2099336098","https://openalex.org/W2105046342","https://openalex.org/W2105594594","https://openalex.org/W2106981652","https://openalex.org/W2115326582","https://openalex.org/W2117063635","https://openalex.org/W2117259536","https://openalex.org/W2124703187","https://openalex.org/W2134524950","https://openalex.org/W2135090840","https://openalex.org/W2135537007","https://openalex.org/W2137983211","https://openalex.org/W2145343602","https://openalex.org/W2145889472","https://openalex.org/W2148048965","https://openalex.org/W2150281451","https://openalex.org/W2151693816","https://openalex.org/W2151937625","https://openalex.org/W2157331557","https://openalex.org/W2158266063","https://openalex.org/W2165698076","https://openalex.org/W2169513960","https://openalex.org/W2180023424","https://openalex.org/W2270470215","https://openalex.org/W2338565696","https://openalex.org/W2340025709","https://openalex.org/W2483430316","https://openalex.org/W2504129798","https://openalex.org/W2551239383","https://openalex.org/W2551874332","https://openalex.org/W2561722228","https://openalex.org/W2593796416","https://openalex.org/W262970172","https://openalex.org/W2751836733","https://openalex.org/W2775533747","https://openalex.org/W2776179841","https://openalex.org/W2911964244","https://openalex.org/W2998216295","https://openalex.org/W4205213118","https://openalex.org/W4206192903","https://openalex.org/W4231109964","https://openalex.org/W4236137412","https://openalex.org/W4285719527","https://openalex.org/W62491536"],"related_works":["https://openalex.org/W4231410700","https://openalex.org/W3023105672","https://openalex.org/W2765080098","https://openalex.org/W2706752825","https://openalex.org/W2385749422","https://openalex.org/W2355539379","https://openalex.org/W2355290145","https://openalex.org/W2353465659","https://openalex.org/W2056341223","https://openalex.org/W2009888974"],"abstract_inverted_index":{"This":[0],"paper":[1,19],"serves":[2],"as":[3],"a":[4,37,144],"survey":[5],"and":[6,55,95,101,114,141,154],"empirical":[7],"evaluation":[8],"of":[9,72,85,91,132,174],"the":[10,51,57,70,74,80,83,86,89,93,98,102,137,152,171],"state-of-the-art":[11],"in":[12,27,156,180,183,186],"activity":[13,25],"recognition":[14,26],"methods":[15],"using":[16],"accelerometers.":[17],"The":[18],"is":[20,35,49,135],"particularly":[21],"focused":[22,68],"on":[23,69,127],"long-term":[24],"real-world":[28],"settings.":[29],"In":[30],"these":[31,108,133],"environments,":[32],"data":[33],"collection":[34],"not":[36,50],"trivial":[38],"matter;":[39],"thus,":[40],"there":[41],"are":[42,77,161],"performance":[43,126],"trade-offs":[44],"between":[45],"prediction":[46],"accuracy,":[47],"which":[48],"sole":[52],"system":[53],"objective,":[54],"keeping":[56],"maintenance":[58],"overhead":[59],"at":[60],"minimum":[61],"levels.":[62],"We":[63,166],"examine":[64],"research":[65],"that":[66,76,118,136],"has":[67],"selection":[71,94],"activities,":[73],"features":[75],"extracted":[78],"from":[79,110],"accelerometer":[81],"data,":[82,88],"segmentation":[84],"time-series":[87],"locations":[90],"accelerometers,":[92],"configuration":[96],"trade-offs,":[97],"test/retest":[99],"reliability,":[100],"generalisation":[103],"performance.":[104],"Furthermore,":[105],"we":[106],"study":[107],"questions":[109],"an":[111],"experimental":[112,121,138,184,188],"platform":[113],"show,":[115],"somewhat":[116],"surprisingly,":[117],"many":[119],"disparate":[120],"configurations":[122,160,185],"yield":[123],"comparable":[124],"predictive":[125],"testing":[128],"data.":[129],"Our":[130],"understanding":[131],"results":[134,173],"setup":[139],"directly":[140],"indirectly":[142],"defines":[143],"pathway":[145],"for":[146],"context":[147],"to":[148,151],"be":[149,178],"delivered":[150],"classifier,":[153],"that,":[155],"some":[157],"settings,":[158],"certain":[159],"more":[162],"optimal":[163],"than":[164],"alternatives.":[165],"conclude":[167],"by":[168],"identifying":[169],"how":[170],"main":[172],"this":[175],"work":[176],"can":[177],"used":[179],"practice,":[181],"specifically":[182],"challenging":[187],"conditions.":[189]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2790414609","counts_by_year":[{"year":2024,"cited_by_count":14},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":12},{"year":2021,"cited_by_count":30},{"year":2020,"cited_by_count":26},{"year":2019,"cited_by_count":26},{"year":2018,"cited_by_count":3}],"updated_date":"2024-12-10T13:07:38.547446","created_date":"2018-03-29"}