{"id":"https://openalex.org/W2945229969","doi":"https://doi.org/10.1109/jbhi.2019.2917565","title":"Evaluating and Enhancing the Generalization Performance of Machine Learning Models for Physical Activity Intensity Prediction From Raw Acceleration Data","display_name":"Evaluating and Enhancing the Generalization Performance of Machine Learning Models for Physical Activity Intensity Prediction From Raw Acceleration Data","publication_year":2019,"publication_date":"2019-05-25","ids":{"openalex":"https://openalex.org/W2945229969","doi":"https://doi.org/10.1109/jbhi.2019.2917565","mag":"2945229969","pmid":"https://pubmed.ncbi.nlm.nih.gov/31107668"},"language":"en","primary_location":{"id":"doi:10.1109/jbhi.2019.2917565","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jbhi.2019.2917565","pdf_url":"https://ieeexplore.ieee.org/ielx7/6221020/8949677/08718283.pdf","source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Biomedical and Health Informatics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://ieeexplore.ieee.org/ielx7/6221020/8949677/08718283.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5010979597","display_name":"Vahid Farrahi","orcid":"https://orcid.org/0000-0001-8355-8488"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Vahid Farrahi","raw_affiliation_strings":["Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland"],"raw_orcid":"https://orcid.org/0000-0001-8355-8488","affiliations":[{"raw_affiliation_string":"Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061434942","display_name":"Maisa Niemel\u00e4","orcid":"https://orcid.org/0000-0002-1008-3263"},"institutions":[{"id":"https://openalex.org/I2799272722","display_name":"Oulu University Hospital","ror":"https://ror.org/045ney286","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Maisa Niemela","raw_affiliation_strings":["Infotech, University of Oulu, Oulu, Finland","Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Infotech, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I2799272722","https://openalex.org/I98381234"]},{"raw_affiliation_string":"Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065061546","display_name":"Petra Tjurin","orcid":null},"institutions":[{"id":"https://openalex.org/I4210165084","display_name":"Oulu Deaconess Institute","ror":"https://ror.org/05tt05r27","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I4210165084"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Petra Tjurin","raw_affiliation_strings":["Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation, Oulu, Finland","Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation, Oulu, Finland","institution_ids":["https://openalex.org/I4210165084"]},{"raw_affiliation_string":"Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047366834","display_name":"Maarit Kangas","orcid":"https://orcid.org/0000-0001-5803-4113"},"institutions":[{"id":"https://openalex.org/I2799272722","display_name":"Oulu University Hospital","ror":"https://ror.org/045ney286","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Maarit Kangas","raw_affiliation_strings":["Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I2799272722","https://openalex.org/I98381234"]},{"raw_affiliation_string":"Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057877217","display_name":"Raija Korpelainen","orcid":"https://orcid.org/0000-0002-3627-0542"},"institutions":[{"id":"https://openalex.org/I2799272722","display_name":"Oulu University Hospital","ror":"https://ror.org/045ney286","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},{"id":"https://openalex.org/I4210165084","display_name":"Oulu Deaconess Institute","ror":"https://ror.org/05tt05r27","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I4210165084"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Raija Korpelainen","raw_affiliation_strings":["Center for Life Course Health Research, University of Oulu, Oulu, Finland","Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation, Oulu, Finland","Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Life Course Health Research, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]},{"raw_affiliation_string":"Department of Sports and Exercise Medicine, Oulu Deaconess Institute Foundation, Oulu, Finland","institution_ids":["https://openalex.org/I4210165084"]},{"raw_affiliation_string":"Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I2799272722","https://openalex.org/I98381234"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053956008","display_name":"Timo J\u00e4ms\u00e4","orcid":"https://orcid.org/0000-0001-8394-9462"},"institutions":[{"id":"https://openalex.org/I2799272722","display_name":"Oulu University Hospital","ror":"https://ror.org/045ney286","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Timo Jamsa","raw_affiliation_strings":["Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland","Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland"],"raw_orcid":"https://orcid.org/0000-0001-8394-9462","affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland","institution_ids":["https://openalex.org/I2799272722"]},{"raw_affiliation_string":"Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I2799272722","https://openalex.org/I98381234"]},{"raw_affiliation_string":"Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.4506,"has_fulltext":true,"cited_by_count":35,"citation_normalized_percentile":{"value":0.82038113,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"24","issue":"1","first_page":"27","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","score":0.6037999987602234,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10352","display_name":"Physical Activity and Health","score":0.6037999987602234,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.05849999934434891,"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/T11209","display_name":"Cardiovascular and exercise physiology","score":0.05050000175833702,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/generalizability-theory","display_name":"Generalizability theory","score":0.9434702396392822},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7366313338279724},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6879252791404724},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.6451303958892822},{"id":"https://openalex.org/keywords/generalization","display_name":"Generalization","score":0.6160562634468079},{"id":"https://openalex.org/keywords/raw-data","display_name":"Raw data","score":0.5981173515319824},{"id":"https://openalex.org/keywords/accelerometer","display_name":"Accelerometer","score":0.5886388421058655},{"id":"https://openalex.org/keywords/cross-validation","display_name":"Cross-validation","score":0.5754808187484741},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.5219542384147644},{"id":"https://openalex.org/keywords/predictive-modelling","display_name":"Predictive modelling","score":0.5088377594947815},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.4292132556438446},{"id":"https://openalex.org/keywords/raw-score","display_name":"Raw score","score":0.41036257147789},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.381069540977478},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.35732659697532654},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.16860798001289368},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.11786523461341858}],"concepts":[{"id":"https://openalex.org/C27158222","wikidata":"https://www.wikidata.org/wiki/Q5532422","display_name":"Generalizability theory","level":2,"score":0.9434702396392822},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7366313338279724},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6879252791404724},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.6451303958892822},{"id":"https://openalex.org/C177148314","wikidata":"https://www.wikidata.org/wiki/Q170084","display_name":"Generalization","level":2,"score":0.6160562634468079},{"id":"https://openalex.org/C132964779","wikidata":"https://www.wikidata.org/wiki/Q2110223","display_name":"Raw data","level":2,"score":0.5981173515319824},{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.5886388421058655},{"id":"https://openalex.org/C27181475","wikidata":"https://www.wikidata.org/wiki/Q541014","display_name":"Cross-validation","level":2,"score":0.5754808187484741},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.5219542384147644},{"id":"https://openalex.org/C45804977","wikidata":"https://www.wikidata.org/wiki/Q7239673","display_name":"Predictive modelling","level":2,"score":0.5088377594947815},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.4292132556438446},{"id":"https://openalex.org/C173633133","wikidata":"https://www.wikidata.org/wiki/Q2110223","display_name":"Raw score","level":3,"score":0.41036257147789},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.381069540977478},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.35732659697532654},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.16860798001289368},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.11786523461341858},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000069550","descriptor_name":"Machine Learning","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000069550","descriptor_name":"Machine Learning","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000069550","descriptor_name":"Machine Learning","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":"Q000145","qualifier_name":"classification","is_major_topic":false},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":"Q000145","qualifier_name":"classification","is_major_topic":false},{"descriptor_ui":"D006802","descriptor_name":"Human Activities","qualifier_ui":"Q000145","qualifier_name":"classification","is_major_topic":false},{"descriptor_ui":"D008991","descriptor_name":"Monitoring, Physiologic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008991","descriptor_name":"Monitoring, Physiologic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008991","descriptor_name":"Monitoring, Physiologic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D015233","descriptor_name":"Models, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015233","descriptor_name":"Models, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015233","descriptor_name":"Models, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D015444","descriptor_name":"Exercise","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D016208","descriptor_name":"Databases, Factual","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016208","descriptor_name":"Databases, Factual","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016208","descriptor_name":"Databases, Factual","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016571","descriptor_name":"Neural Networks, Computer","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016571","descriptor_name":"Neural Networks, Computer","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016571","descriptor_name":"Neural Networks, Computer","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D061725","descriptor_name":"Accelerometry","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false}],"locations_count":3,"locations":[{"id":"doi:10.1109/jbhi.2019.2917565","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jbhi.2019.2917565","pdf_url":"https://ieeexplore.ieee.org/ielx7/6221020/8949677/08718283.pdf","source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Biomedical and Health Informatics","raw_type":"journal-article"},{"id":"pmid:31107668","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/31107668","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE journal of biomedical and health informatics","raw_type":null},{"id":"pmh:oai:oulu.fi:nbnfi-fe2019091828613","is_oa":true,"landing_page_url":"http://urn.fi/urn:nbn:fi-fe2019091828613","pdf_url":null,"source":{"id":"https://openalex.org/S4306400284","display_name":"University of Oulu Repository (University of Oulu)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I98381234","host_organization_name":"University of Oulu","host_organization_lineage":["https://openalex.org/I98381234"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1109/jbhi.2019.2917565","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jbhi.2019.2917565","pdf_url":"https://ieeexplore.ieee.org/ielx7/6221020/8949677/08718283.pdf","source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Biomedical and Health Informatics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G7158739914","display_name":null,"funder_award_id":"713645","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"},{"id":"https://openalex.org/G7842005466","display_name":null,"funder_award_id":"Horizon 2020","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320336704","display_name":"Infotech Oulu","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2945229969.pdf","grobid_xml":"https://content.openalex.org/works/W2945229969.grobid-xml"},"referenced_works_count":44,"referenced_works":["https://openalex.org/W1976451292","https://openalex.org/W1998879590","https://openalex.org/W2002353621","https://openalex.org/W2019076211","https://openalex.org/W2019098172","https://openalex.org/W2026297770","https://openalex.org/W2030401894","https://openalex.org/W2035855116","https://openalex.org/W2037789405","https://openalex.org/W2039665130","https://openalex.org/W2048606477","https://openalex.org/W2050998072","https://openalex.org/W2060699725","https://openalex.org/W2074276081","https://openalex.org/W2084779848","https://openalex.org/W2096653978","https://openalex.org/W2098450425","https://openalex.org/W2123504417","https://openalex.org/W2125212922","https://openalex.org/W2146199357","https://openalex.org/W2152195551","https://openalex.org/W2164365672","https://openalex.org/W2164777277","https://openalex.org/W2200539030","https://openalex.org/W2279300874","https://openalex.org/W2295454405","https://openalex.org/W2314289569","https://openalex.org/W2315380544","https://openalex.org/W2317306538","https://openalex.org/W2325534066","https://openalex.org/W2327453846","https://openalex.org/W2329483624","https://openalex.org/W2400273852","https://openalex.org/W2465778425","https://openalex.org/W2548437830","https://openalex.org/W2618096841","https://openalex.org/W2625557646","https://openalex.org/W2664062929","https://openalex.org/W2760233617","https://openalex.org/W2765422955","https://openalex.org/W2778426046","https://openalex.org/W2778618555","https://openalex.org/W2785176356","https://openalex.org/W2903150444"],"related_works":["https://openalex.org/W2965112023","https://openalex.org/W2137360007","https://openalex.org/W2884766112","https://openalex.org/W2917085134","https://openalex.org/W2909667090","https://openalex.org/W2884698248","https://openalex.org/W2883546264","https://openalex.org/W2977651770","https://openalex.org/W2916576802","https://openalex.org/W1962641075"],"abstract_inverted_index":{"PURPOSE:":[0],"To":[1,77,101],"evaluate":[2],"and":[3,45,58,75,91,118,200],"enhance":[4,102],"the":[5,80,103,111,119,126,140,144,151,175,204,226,245,249,260],"generalization":[6,246],"performance":[7,160,173,209,224,247,262],"of":[8,108,110,143,174,248],"machine":[9],"learning":[10],"physical":[11],"activity":[12,26,69],"intensity":[13,70],"prediction":[14],"models":[15,82,179,194],"developed":[16,84],"with":[17,98,185,207,217,222,266],"raw":[18,40],"acceleration":[19,41],"data":[20,42,202],"on":[21,195,263],"populations":[22,265],"monitored":[23],"by":[24],"different":[25,99,186,267],"monitors.":[27],"METHOD:":[28],"Five":[29],"datasets":[30,52,97,113,128,141,157,184,197,220,227,235],"from":[31,146],"four":[32,109],"studies,":[33],"each":[34,147],"containing":[35],"only":[36],"hip-":[37,44],"or":[38],"wrist-based":[39],"(two":[43],"three":[46,65],"wrist-based)":[47],"were":[48,53,83,129],"extracted.":[49],"The":[50,156,172,192,214],"five":[51,112,127,219],"then":[54,92],"used":[55,115],"to":[56,67,95,131,183,258],"develop":[57,132],"validate":[59],"artificial":[60],"neural":[61],"networks":[62],"(ANN)":[63],"in":[64,161,236],"setups":[66],"classify":[68],"categories":[71],"(sedentary":[72],"behavior,":[73],"light,":[74],"moderate-to-vigorous).":[76],"examine":[78],"generalizability,":[79,105],"ANN":[81],"using":[85],"within":[86,162,176,252],"dataset":[87,121,148,163,177,206,253],"(leave-one-subject-out)":[88],"cross":[89,93,164],"validation,":[90],"tested":[94],"other":[96,264],"accelerometers.":[100,268],"models'":[104,261],"a":[106,133,240],"combination":[107],"was":[114],"for":[116,122,149,153,243],"training":[117,237],"fifth":[120],"validation.":[123],"Finally,":[124],"all":[125,218],"merged":[130,196],"single":[134],"model":[135,215],"that":[136],"is":[137,255],"generalizable":[138],"across":[139,225],"(50%":[142],"subjects":[145],"training,":[150],"remaining":[152],"validation).":[154],"RESULTS:":[155],"showed":[158],"high":[159],"validation":[165,254],"(accuracy":[166],"71.9-95.4%,":[167],"Kappa":[168],"K":[169,189,211,229],"=":[170,190,212,230],"0.63-0.94).":[171],"validated":[178],"decreased":[180],"when":[181],"applied":[182],"accelerometers":[187],"(41.2-59.9%,":[188],"0.21-0.48).":[191],"trained":[193,216],"consisting":[198],"hip":[199],"wrist":[201],"predicted":[203],"left-out":[205],"acceptable":[208,223],"(65.9-83.7%,":[210],"0.61-0.79).":[213],"performed":[221],"(80.4-90.7%,":[228],"0.68-0.89).":[231],"CONCLUSIONS:":[232],"Integrating":[233],"heterogeneous":[234],"sets":[238],"seems":[239],"viable":[241],"approach":[242],"enhancing":[244],"models.":[250],"Instead,":[251],"not":[256],"sufficient":[257],"understand":[259]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":3}],"updated_date":"2026-06-16T09:24:06.705377","created_date":"2025-10-10T00:00:00"}
