{"id":"https://openalex.org/W4220706021","doi":"https://doi.org/10.3390/e24030428","title":"Machine Learning Models and Statistical Complexity to Analyze the Effects of Posture on Cerebral Hemodynamics","display_name":"Machine Learning Models and Statistical Complexity to Analyze the Effects of Posture on Cerebral Hemodynamics","publication_year":2022,"publication_date":"2022-03-19","ids":{"openalex":"https://openalex.org/W4220706021","doi":"https://doi.org/10.3390/e24030428","pmid":"https://pubmed.ncbi.nlm.nih.gov/35327938"},"language":"en","primary_location":{"id":"doi:10.3390/e24030428","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e24030428","pdf_url":"https://www.mdpi.com/1099-4300/24/3/428/pdf?version=1647672073","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1099-4300/24/3/428/pdf?version=1647672073","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5076043473","display_name":"M\u00e1x Chac\u00f3n","orcid":"https://orcid.org/0000-0002-5082-0395"},"institutions":[{"id":"https://openalex.org/I10457146","display_name":"Universidad de Santiago de Chile","ror":"https://ror.org/02ma57s91","country_code":"CL","type":"education","lineage":["https://openalex.org/I10457146"]}],"countries":["CL"],"is_corresponding":true,"raw_author_name":"Max Chac\u00f3n","raw_affiliation_strings":["Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile"],"raw_orcid":"https://orcid.org/0000-0002-5082-0395","affiliations":[{"raw_affiliation_string":"Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile","institution_ids":["https://openalex.org/I10457146"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089307122","display_name":"H\u00e9ctor Gonzalo Rojas Pescio","orcid":"https://orcid.org/0000-0002-9543-3516"},"institutions":[{"id":"https://openalex.org/I10457146","display_name":"Universidad de Santiago de Chile","ror":"https://ror.org/02ma57s91","country_code":"CL","type":"education","lineage":["https://openalex.org/I10457146"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Hector Rojas-Pescio","raw_affiliation_strings":["Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile"],"raw_orcid":"https://orcid.org/0000-0002-9543-3516","affiliations":[{"raw_affiliation_string":"Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile","institution_ids":["https://openalex.org/I10457146"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023077148","display_name":"Sergio Pe\u00f1aloza","orcid":"https://orcid.org/0000-0001-9413-5309"},"institutions":[{"id":"https://openalex.org/I10457146","display_name":"Universidad de Santiago de Chile","ror":"https://ror.org/02ma57s91","country_code":"CL","type":"education","lineage":["https://openalex.org/I10457146"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Sergio Pe\u00f1aloza","raw_affiliation_strings":["Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile"],"raw_orcid":"https://orcid.org/0000-0001-9413-5309","affiliations":[{"raw_affiliation_string":"Departamento de Ingenier\u00eda Inform\u00e1tica, Universidad de Santiago de Chile, Av. V\u00edctor Jara N\u00b0 2659, Estaci\u00f3n Central, Santiago 9190864, Chile","institution_ids":["https://openalex.org/I10457146"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081573524","display_name":"Jean Landerretche","orcid":null},"institutions":[{"id":"https://openalex.org/I10457146","display_name":"Universidad de Santiago de Chile","ror":"https://ror.org/02ma57s91","country_code":"CL","type":"education","lineage":["https://openalex.org/I10457146"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Jean Landerretche","raw_affiliation_strings":["Unidad de Neurolog\u00eda, Escuela de Medicina, Universidad de Santiago de Chile, Av. Alameda N\u00b0 3336, Estaci\u00f3n Central, Santiago 9170022, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Unidad de Neurolog\u00eda, Escuela de Medicina, Universidad de Santiago de Chile, Av. Alameda N\u00b0 3336, Estaci\u00f3n Central, Santiago 9170022, Chile","institution_ids":["https://openalex.org/I10457146"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5076043473"],"corresponding_institution_ids":["https://openalex.org/I10457146"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":0.6192,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.67974948,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"24","issue":"3","first_page":"428","last_page":"428"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10706","display_name":"Traumatic Brain Injury and Neurovascular Disturbances","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Neurology"},"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/T10706","display_name":"Traumatic Brain Injury and Neurovascular Disturbances","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Neurology"},"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/T10977","display_name":"Optical Imaging and Spectroscopy Techniques","score":0.9980000257492065,"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/T10227","display_name":"Acute Ischemic Stroke Management","score":0.9814000129699707,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"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/cerebral-autoregulation","display_name":"Cerebral autoregulation","score":0.739876389503479},{"id":"https://openalex.org/keywords/hemodynamics","display_name":"Hemodynamics","score":0.701095461845398},{"id":"https://openalex.org/keywords/cerebral-blood-flow","display_name":"Cerebral blood flow","score":0.6697515845298767},{"id":"https://openalex.org/keywords/autoregulation","display_name":"Autoregulation","score":0.5483230352401733},{"id":"https://openalex.org/keywords/blood-pressure","display_name":"Blood pressure","score":0.48051533102989197},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.47205477952957153},{"id":"https://openalex.org/keywords/approximate-entropy","display_name":"Approximate entropy","score":0.45053574442863464},{"id":"https://openalex.org/keywords/transcranial-doppler","display_name":"Transcranial Doppler","score":0.4338821470737457},{"id":"https://openalex.org/keywords/blood-flow","display_name":"Blood flow","score":0.41137295961380005},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.40916338562965393},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.37334418296813965},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.34929925203323364},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.3264309763908386},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.31417524814605713},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.30976200103759766},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.1679474413394928}],"concepts":[{"id":"https://openalex.org/C84359808","wikidata":"https://www.wikidata.org/wiki/Q13365173","display_name":"Cerebral autoregulation","level":4,"score":0.739876389503479},{"id":"https://openalex.org/C178853913","wikidata":"https://www.wikidata.org/wiki/Q1642137","display_name":"Hemodynamics","level":2,"score":0.701095461845398},{"id":"https://openalex.org/C157767197","wikidata":"https://www.wikidata.org/wiki/Q886843","display_name":"Cerebral blood flow","level":2,"score":0.6697515845298767},{"id":"https://openalex.org/C111774379","wikidata":"https://www.wikidata.org/wiki/Q1364253","display_name":"Autoregulation","level":3,"score":0.5483230352401733},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.48051533102989197},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.47205477952957153},{"id":"https://openalex.org/C86859247","wikidata":"https://www.wikidata.org/wiki/Q4781760","display_name":"Approximate entropy","level":3,"score":0.45053574442863464},{"id":"https://openalex.org/C191616109","wikidata":"https://www.wikidata.org/wiki/Q3512319","display_name":"Transcranial Doppler","level":2,"score":0.4338821470737457},{"id":"https://openalex.org/C158846371","wikidata":"https://www.wikidata.org/wiki/Q1642137","display_name":"Blood flow","level":2,"score":0.41137295961380005},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.40916338562965393},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.37334418296813965},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.34929925203323364},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.3264309763908386},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.31417524814605713},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.30976200103759766},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.1679474413394928}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/e24030428","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e24030428","pdf_url":"https://www.mdpi.com/1099-4300/24/3/428/pdf?version=1647672073","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},{"id":"pmid:35327938","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/35327938","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":"Entropy (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:02da1b345b9f44fa8f198c06533e1c4a","is_oa":true,"landing_page_url":"https://doaj.org/article/02da1b345b9f44fa8f198c06533e1c4a","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":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 24, Iss 3, p 428 (2022)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1099-4300/24/3/428/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/e24030428","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"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":"Entropy; Volume 24; Issue 3; Pages: 428","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:8947420","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/8947420","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/e24030428","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e24030428","pdf_url":"https://www.mdpi.com/1099-4300/24/3/428/pdf?version=1647672073","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"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":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.5799999833106995,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4220706021.pdf","grobid_xml":"https://content.openalex.org/works/W4220706021.grobid-xml"},"referenced_works_count":58,"referenced_works":["https://openalex.org/W1490649747","https://openalex.org/W1963925423","https://openalex.org/W1964348979","https://openalex.org/W1972041569","https://openalex.org/W1972252378","https://openalex.org/W1987255185","https://openalex.org/W1988924536","https://openalex.org/W1994245768","https://openalex.org/W1995465492","https://openalex.org/W1996438634","https://openalex.org/W1997121148","https://openalex.org/W2007044492","https://openalex.org/W2017045452","https://openalex.org/W2023644834","https://openalex.org/W2041329603","https://openalex.org/W2050781116","https://openalex.org/W2057678493","https://openalex.org/W2100436846","https://openalex.org/W2106706488","https://openalex.org/W2110533953","https://openalex.org/W2116081024","https://openalex.org/W2116656354","https://openalex.org/W2121934251","https://openalex.org/W2122358287","https://openalex.org/W2124068811","https://openalex.org/W2128828233","https://openalex.org/W2131174847","https://openalex.org/W2136765547","https://openalex.org/W2138635217","https://openalex.org/W2148577539","https://openalex.org/W2153635508","https://openalex.org/W2157219545","https://openalex.org/W2157881370","https://openalex.org/W2159472025","https://openalex.org/W2161920802","https://openalex.org/W2163414043","https://openalex.org/W2163498887","https://openalex.org/W2170210105","https://openalex.org/W2373866487","https://openalex.org/W2486724830","https://openalex.org/W2582743722","https://openalex.org/W2615194772","https://openalex.org/W2707805049","https://openalex.org/W2731057181","https://openalex.org/W2843727985","https://openalex.org/W2888223621","https://openalex.org/W2912738695","https://openalex.org/W2993383518","https://openalex.org/W3072227745","https://openalex.org/W3101426737","https://openalex.org/W3136457091","https://openalex.org/W3157004383","https://openalex.org/W3205514867","https://openalex.org/W4240325460","https://openalex.org/W4243379836","https://openalex.org/W4300194415","https://openalex.org/W6693972356","https://openalex.org/W6979017744"],"related_works":["https://openalex.org/W2664729653","https://openalex.org/W2314201917","https://openalex.org/W2913395717","https://openalex.org/W2811446807","https://openalex.org/W2177576479","https://openalex.org/W2086441951","https://openalex.org/W3136876934","https://openalex.org/W4295924926","https://openalex.org/W2889948338","https://openalex.org/W2962923795"],"abstract_inverted_index":{"reactivity":[0],"and":[1,25,53,68],"neurovascular-coupling)":[2],"that":[3,110],"affect":[4],"cerebral":[5,29,54],"blood":[6,50,55],"flow":[7,56],"(BF)":[8],"are":[9],"included.":[10],"In":[11],"this":[12],"work,":[13],"we":[14,80,96],"analyzed":[15],"postural":[16],"influences":[17],"using":[18,34],"non-linear":[19],"machine":[20],"learning":[21],"models":[22,71],"of":[23,28,72,101,114],"dCA":[24,89],"studied":[26],"characteristics":[27],"hemodynamics":[30],"under":[31],"statistical":[32,99],"complexity":[33,100,113],"eighteen":[35],"young":[36],"adult":[37],"subjects,":[38],"aged":[39],"27":[40],"\u00b1":[41],"6.29":[42],"years,":[43],"who":[44],"took":[45],"the":[46,88,98,112],"systemic":[47],"or":[48],"arterial":[49],"pressure":[51],"(BP)":[52],"velocity":[57],"(BFV)":[58],"for":[59,103],"five":[60],"minutes":[61],"in":[62,90],"three":[63,104],"different":[64,91],"postures:":[65],"stand,":[66],"sit,":[67],"lay.":[69],"With":[70],"a":[73],"Support":[74],"Vector":[75],"Machine":[76],"(SVM)":[77],"through":[78],"time,":[79],"used":[81],"an":[82],"AutoRegulatory":[83],"Index":[84],"(ARI)":[85],"to":[86],"compare":[87],"postures.":[92,105],"Using":[93],"wavelet":[94],"entropy,":[95],"estimated":[97],"BFV":[102],"Repeated":[106],"measures":[107],"ANOVA":[108],"showed":[109],"only":[111],"lay-sit":[115],"had":[116],"significant":[117],"differences.":[118]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}
