{"id":"https://openalex.org/W4389274414","doi":"https://doi.org/10.3390/computation11120239","title":"Effects of the Number of Classes and Pressure Map Resolution on Fine-Grained In-Bed Posture Classification","display_name":"Effects of the Number of Classes and Pressure Map Resolution on Fine-Grained In-Bed Posture Classification","publication_year":2023,"publication_date":"2023-12-02","ids":{"openalex":"https://openalex.org/W4389274414","doi":"https://doi.org/10.3390/computation11120239"},"language":"en","primary_location":{"id":"doi:10.3390/computation11120239","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computation11120239","pdf_url":"https://www.mdpi.com/2079-3197/11/12/239/pdf?version=1701505668","source":{"id":"https://openalex.org/S2738402919","display_name":"Computation","issn_l":"2079-3197","issn":["2079-3197"],"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,"raw_source_name":"Computation","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2079-3197/11/12/239/pdf?version=1701505668","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5080131988","display_name":"Lu\u00eds Fonseca","orcid":null},"institutions":[{"id":"https://openalex.org/I144926016","display_name":"Polytechnic Institute of Castelo Branco","ror":"https://ror.org/004s18446","country_code":"PT","type":"education","lineage":["https://openalex.org/I144926016"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Lu\u00eds Fonseca","raw_affiliation_strings":["Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal","institution_ids":["https://openalex.org/I144926016"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056378216","display_name":"Fernando Ribeiro","orcid":"https://orcid.org/0000-0002-1225-3844"},"institutions":[{"id":"https://openalex.org/I144926016","display_name":"Polytechnic Institute of Castelo Branco","ror":"https://ror.org/004s18446","country_code":"PT","type":"education","lineage":["https://openalex.org/I144926016"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Fernando Ribeiro","raw_affiliation_strings":["DiSAC\u2014Research Unit on Digital Services, Applications and Content, 6000-767 Castelo Branco, Portugal","Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal"],"raw_orcid":"https://orcid.org/0000-0002-1225-3844","affiliations":[{"raw_affiliation_string":"DiSAC\u2014Research Unit on Digital Services, Applications and Content, 6000-767 Castelo Branco, Portugal","institution_ids":[]},{"raw_affiliation_string":"Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal","institution_ids":["https://openalex.org/I144926016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5019344709","display_name":"Jos\u00e9 Metr\u00f4lho","orcid":"https://orcid.org/0000-0002-7327-2109"},"institutions":[{"id":"https://openalex.org/I144926016","display_name":"Polytechnic Institute of Castelo Branco","ror":"https://ror.org/004s18446","country_code":"PT","type":"education","lineage":["https://openalex.org/I144926016"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Jos\u00e9 Metr\u00f4lho","raw_affiliation_strings":["DiSAC\u2014Research Unit on Digital Services, Applications and Content, 6000-767 Castelo Branco, Portugal","Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal"],"raw_orcid":"https://orcid.org/0000-0002-7327-2109","affiliations":[{"raw_affiliation_string":"DiSAC\u2014Research Unit on Digital Services, Applications and Content, 6000-767 Castelo Branco, Portugal","institution_ids":[]},{"raw_affiliation_string":"Polytechnic Institute of Castelo Branco, 6000-081 Castelo Branco, Portugal","institution_ids":["https://openalex.org/I144926016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5056378216"],"corresponding_institution_ids":["https://openalex.org/I144926016"],"apc_list":{"value":1400,"currency":"CHF","value_usd":1515},"apc_paid":{"value":1400,"currency":"CHF","value_usd":1515},"fwci":1.1183,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.79374193,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"11","issue":"12","first_page":"239","last_page":"239"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12994","display_name":"Infrared Thermography in Medicine","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T12994","display_name":"Infrared Thermography in Medicine","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11398","display_name":"Hand Gesture Recognition Systems","score":0.98580002784729,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"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/T10812","display_name":"Human Pose and Action Recognition","score":0.9520000219345093,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/random-forest","display_name":"Random forest","score":0.6723589897155762},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6630939245223999},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6508333683013916},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.6391595602035522},{"id":"https://openalex.org/keywords/decision-tree","display_name":"Decision tree","score":0.5665637850761414},{"id":"https://openalex.org/keywords/supine-position","display_name":"Supine position","score":0.527987539768219},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.4572981297969818},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.43602535128593445},{"id":"https://openalex.org/keywords/perceptron","display_name":"Perceptron","score":0.4179617762565613},{"id":"https://openalex.org/keywords/multilayer-perceptron","display_name":"Multilayer perceptron","score":0.41740667819976807},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3509714603424072},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.26420706510543823},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.0745820701122284}],"concepts":[{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.6723589897155762},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6630939245223999},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6508333683013916},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.6391595602035522},{"id":"https://openalex.org/C84525736","wikidata":"https://www.wikidata.org/wiki/Q831366","display_name":"Decision tree","level":2,"score":0.5665637850761414},{"id":"https://openalex.org/C125567185","wikidata":"https://www.wikidata.org/wiki/Q3267428","display_name":"Supine position","level":2,"score":0.527987539768219},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.4572981297969818},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.43602535128593445},{"id":"https://openalex.org/C60908668","wikidata":"https://www.wikidata.org/wiki/Q690207","display_name":"Perceptron","level":3,"score":0.4179617762565613},{"id":"https://openalex.org/C179717631","wikidata":"https://www.wikidata.org/wiki/Q2991667","display_name":"Multilayer perceptron","level":3,"score":0.41740667819976807},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3509714603424072},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.26420706510543823},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0745820701122284},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/computation11120239","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computation11120239","pdf_url":"https://www.mdpi.com/2079-3197/11/12/239/pdf?version=1701505668","source":{"id":"https://openalex.org/S2738402919","display_name":"Computation","issn_l":"2079-3197","issn":["2079-3197"],"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,"raw_source_name":"Computation","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:3df608df1a6a45ebab8e587f9dda2828","is_oa":true,"landing_page_url":"https://doaj.org/article/3df608df1a6a45ebab8e587f9dda2828","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Computation, Vol 11, Iss 12, p 239 (2023)","raw_type":"article"},{"id":"pmh:oai:repositorio.ipcb.pt:10400.11/8725","is_oa":true,"landing_page_url":"http://hdl.handle.net/10400.11/8725","pdf_url":null,"source":{"id":"https://openalex.org/S4306401969","display_name":"Reposit\u00f3rio Cient\u00edfico do Instituto Polit\u00e9cnico de Castelo Branco (Instituto Polit\u00e9cnico de Castelo Branco)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I144926016","host_organization_name":"Polytechnic Institute of Castelo Branco","host_organization_lineage":["https://openalex.org/I144926016"],"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":null,"raw_type":"journal article"}],"best_oa_location":{"id":"doi:10.3390/computation11120239","is_oa":true,"landing_page_url":"https://doi.org/10.3390/computation11120239","pdf_url":"https://www.mdpi.com/2079-3197/11/12/239/pdf?version=1701505668","source":{"id":"https://openalex.org/S2738402919","display_name":"Computation","issn_l":"2079-3197","issn":["2079-3197"],"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,"raw_source_name":"Computation","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.5400000214576721,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4389274414.pdf"},"referenced_works_count":18,"referenced_works":["https://openalex.org/W1871429105","https://openalex.org/W2606699032","https://openalex.org/W2914492151","https://openalex.org/W3034403720","https://openalex.org/W3036288779","https://openalex.org/W3044894888","https://openalex.org/W3111083352","https://openalex.org/W3117012970","https://openalex.org/W3175617454","https://openalex.org/W3195191735","https://openalex.org/W4214821076","https://openalex.org/W4286355395","https://openalex.org/W4292830116","https://openalex.org/W4309156345","https://openalex.org/W4313472082","https://openalex.org/W4321599502","https://openalex.org/W4382771276","https://openalex.org/W4384558074"],"related_works":["https://openalex.org/W4366990902","https://openalex.org/W4317732970","https://openalex.org/W4388550696","https://openalex.org/W4313289487","https://openalex.org/W4321636153","https://openalex.org/W2076543106","https://openalex.org/W2994772185","https://openalex.org/W2019891950","https://openalex.org/W2085842814","https://openalex.org/W2523437662"],"abstract_inverted_index":{"In-bed":[0],"posture":[1,39,148,269],"classification":[2,149,213,234],"has":[3,9,78,152],"attracted":[4],"considerable":[5],"research":[6],"interest":[7],"and":[8,28,52,61,160,174,197],"significant":[10],"potential":[11],"to":[12,34,104,215,237,257,263,283],"enhance":[13],"healthcare":[14],"applications.":[15],"Recent":[16],"works":[17],"generally":[18],"use":[19,44,161],"approaches":[20],"based":[21],"on":[22,31,146],"pressure":[23,143,169,280],"maps,":[24],"machine":[25],"learning":[26],"algorithms":[27,186,207,251],"focused":[29],"mainly":[30],"finding":[32],"solutions":[33,43],"obtain":[35],"high":[36,209],"accuracy":[37,210],"in":[38,64,123,134,157,211,217,239],"classification.":[40],"Typically,":[41],"these":[42],"different":[45,100,121,176],"datasets":[46],"with":[47,114,226],"varying":[48],"numbers":[49],"of":[50,70,84,86,93,98,110,120,131,142,220,242,278],"sensors":[51],"classify":[53],"the":[54,107,111,130,140,147,162,205,218,223,231,240,259,267,276,279,285],"four":[55],"main":[56,72,80],"postures":[57,85,101,122],"(supine,":[58],"prone,":[59],"left-facing,":[60],"right-facing)":[62],"or,":[63],"some":[65,68,264],"cases,":[66],"include":[67],"variants":[69],"those":[71,132],"postures.":[73,177],"Following":[74],"this,":[75],"this":[76,124],"article":[77],"three":[79],"objectives:":[81],"fine-grained":[82],"detection":[83],"bedridden":[87,112],"people,":[88],"identifying":[89],"a":[90,115,165,299],"large":[91],"number":[92,119],"postures,":[94],"including":[95],"small":[96],"variations\u2014consideration":[97],"28":[99,175],"will":[102],"help":[103],"better":[105],"identify":[106],"actual":[108],"position":[109,262],"person":[113],"higher":[116,128],"accuracy.":[117],"The":[118,178,245],"approach":[125,235],"is":[126,255,270],"considerably":[127],"than":[129],"used":[133,206],"any":[135],"other":[136,158],"related":[137],"work;":[138],"analyze":[139],"impact":[141],"map":[144],"resolution":[145,277,301],"accuracy,":[150],"which":[151,289],"also":[153],"not":[154,296],"been":[155],"addressed":[156],"studies;":[159],"PoPu":[163,224],"dataset,":[164,225],"dataset":[166,179],"that":[167,204,248,291,294],"includes":[168],"maps":[170,281],"from":[171],"60":[172],"participants":[173],"was":[180],"analyzed":[181],"using":[182,222,249],"five":[183],"distinct":[184],"ML":[185,250],"(k-nearest":[187],"neighbors,":[188],"linear":[189],"support":[190],"vector":[191],"machines,":[192],"decision":[193],"tree,":[194],"random":[195,243],"forest,":[196],"multi-layer":[198],"perceptron).":[199],"This":[200],"study\u2019s":[201],"findings":[202],"show":[203],"achieve":[208],"4-posture":[212],"(up":[214,236],"99%":[216],"case":[219,241],"MLP)":[221],"lower":[227,300],"accuracies":[228],"when":[229],"attempting":[230],"finer-grained":[232,253],"28-posture":[233],"68%":[238],"forest).":[244],"results":[246],"indicate":[247],"for":[252,292],"applications":[254,293],"possible":[256],"specify":[258],"patient\u2019s":[260],"exact":[261],"degree":[265],"since":[266],"parent":[268],"still":[271],"accurately":[272],"classified.":[273],"Furthermore,":[274],"reducing":[275],"seems":[282],"affect":[284],"classifiers":[286],"only":[287],"slightly,":[288],"suggests":[290],"do":[295],"need":[297],"finer-granularity,":[298],"might":[302],"suffice.":[303]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2}],"updated_date":"2025-12-26T23:08:49.675405","created_date":"2025-10-10T00:00:00"}
