{"id":"https://openalex.org/W2887312055","doi":"https://doi.org/10.1109/memea.2018.8438602","title":"The effect of Non-Negative Matrix Factorization initialization on the accurate identification of muscle synergies with correlated activation signals","display_name":"The effect of Non-Negative Matrix Factorization initialization on the accurate identification of muscle synergies with correlated activation signals","publication_year":2018,"publication_date":"2018-06-01","ids":{"openalex":"https://openalex.org/W2887312055","doi":"https://doi.org/10.1109/memea.2018.8438602","mag":"2887312055"},"language":"en","primary_location":{"id":"doi:10.1109/memea.2018.8438602","is_oa":false,"landing_page_url":"https://doi.org/10.1109/memea.2018.8438602","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Symposium on Medical Measurements and Applications (MeMeA)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5041712663","display_name":"Simone Ranaldi","orcid":"https://orcid.org/0000-0002-7849-0893"},"institutions":[{"id":"https://openalex.org/I119003972","display_name":"Roma Tre University","ror":"https://ror.org/05vf0dg29","country_code":"IT","type":"education","lineage":["https://openalex.org/I119003972"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Simone Ranaldi","raw_affiliation_strings":["Department of Engineering, Roma Tre University, Rome, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, Roma Tre University, Rome, Italy","institution_ids":["https://openalex.org/I119003972"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077183344","display_name":"Cristiano De Marchis","orcid":"https://orcid.org/0000-0003-1522-7454"},"institutions":[{"id":"https://openalex.org/I119003972","display_name":"Roma Tre University","ror":"https://ror.org/05vf0dg29","country_code":"IT","type":"education","lineage":["https://openalex.org/I119003972"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Cristiano De Marchis","raw_affiliation_strings":["Department of Engineering, Roma Tre University, Rome, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, Roma Tre University, Rome, Italy","institution_ids":["https://openalex.org/I119003972"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108652807","display_name":"Martina Rinaldi","orcid":null},"institutions":[{"id":"https://openalex.org/I119003972","display_name":"Roma Tre University","ror":"https://ror.org/05vf0dg29","country_code":"IT","type":"education","lineage":["https://openalex.org/I119003972"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Martina Rinaldi","raw_affiliation_strings":["Department of Engineering, Roma Tre University, Rome, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, Roma Tre University, Rome, Italy","institution_ids":["https://openalex.org/I119003972"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041313475","display_name":"Silvia Conforto","orcid":"https://orcid.org/0000-0001-7323-5220"},"institutions":[{"id":"https://openalex.org/I119003972","display_name":"Roma Tre University","ror":"https://ror.org/05vf0dg29","country_code":"IT","type":"education","lineage":["https://openalex.org/I119003972"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Silvia Conforto","raw_affiliation_strings":["Department of Engineering, Roma Tre University, Rome, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Engineering, Roma Tre University, Rome, Italy","institution_ids":["https://openalex.org/I119003972"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5041712663"],"corresponding_institution_ids":["https://openalex.org/I119003972"],"apc_list":null,"apc_paid":null,"fwci":0.2179,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.51878723,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10784","display_name":"Muscle activation and electromyography studies","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10784","display_name":"Muscle activation and electromyography studies","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10982","display_name":"Motor Control and Adaptation","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10114","display_name":"Balance, Gait, and Falls Prevention","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/initialization","display_name":"Initialization","score":0.9700132608413696},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7137843370437622},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.6683765053749084},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.5683844685554504},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5666937828063965},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.49462220072746277},{"id":"https://openalex.org/keywords/non-negative-matrix-factorization","display_name":"Non-negative matrix factorization","score":0.48991960287094116},{"id":"https://openalex.org/keywords/electromyography","display_name":"Electromyography","score":0.4440914988517761},{"id":"https://openalex.org/keywords/physical-medicine-and-rehabilitation","display_name":"Physical medicine and rehabilitation","score":0.0835789144039154}],"concepts":[{"id":"https://openalex.org/C114466953","wikidata":"https://www.wikidata.org/wiki/Q6034165","display_name":"Initialization","level":2,"score":0.9700132608413696},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7137843370437622},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.6683765053749084},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.5683844685554504},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5666937828063965},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.49462220072746277},{"id":"https://openalex.org/C152671427","wikidata":"https://www.wikidata.org/wiki/Q10843505","display_name":"Non-negative matrix factorization","level":4,"score":0.48991960287094116},{"id":"https://openalex.org/C2777515770","wikidata":"https://www.wikidata.org/wiki/Q507369","display_name":"Electromyography","level":2,"score":0.4440914988517761},{"id":"https://openalex.org/C99508421","wikidata":"https://www.wikidata.org/wiki/Q2678675","display_name":"Physical medicine and rehabilitation","level":1,"score":0.0835789144039154},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/memea.2018.8438602","is_oa":false,"landing_page_url":"https://doi.org/10.1109/memea.2018.8438602","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 IEEE International Symposium on Medical Measurements and Applications (MeMeA)","raw_type":"proceedings-article"},{"id":"pmh:oai:iris.uniroma3.it:11590/363313","is_oa":false,"landing_page_url":"http://hdl.handle.net/11590/363313","pdf_url":null,"source":{"id":"https://openalex.org/S4377196120","display_name":"Iris (Roma Tre University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I119003972","host_organization_name":"Roma Tre University","host_organization_lineage":["https://openalex.org/I119003972"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1778475946","https://openalex.org/W1972837991","https://openalex.org/W2013336452","https://openalex.org/W2015583498","https://openalex.org/W2024900513","https://openalex.org/W2070213512","https://openalex.org/W2076001066","https://openalex.org/W2108315391","https://openalex.org/W2111960226","https://openalex.org/W2135029798","https://openalex.org/W2412671001","https://openalex.org/W2621869135","https://openalex.org/W2800696406","https://openalex.org/W3143596294","https://openalex.org/W6680012447"],"related_works":["https://openalex.org/W2101428145","https://openalex.org/W2338894643","https://openalex.org/W2130715307","https://openalex.org/W2055537285","https://openalex.org/W2002519017","https://openalex.org/W2003780581","https://openalex.org/W3023185158","https://openalex.org/W1538254361","https://openalex.org/W1914599625","https://openalex.org/W2127243424"],"abstract_inverted_index":{"The":[0,30,73],"quantification":[1],"of":[2,25,33,40,43,55,71,91,150,156,158,173,191,207],"muscle":[3,6,56,119,196],"coordination":[4],"through":[5],"synergy":[7],"analysis":[8],"has":[9,36,60,166],"been":[10,37,104,115,134,144,167],"shown":[11,61],"to":[12,117,169],"represent":[13],"a":[14],"useful":[15],"tool":[16],"for":[17,47,52,83],"inferring":[18],"motor":[19,26],"control":[20],"strategies":[21],"and":[22,28,108],"extracting":[23],"indexes":[24],"impairment":[27],"recovery.":[29],"main":[31],"goal":[32],"this":[34,98],"work":[35],"the":[38,41,53,79,154,159,163,171,188,199],"assessment":[39],"performance":[42,64,172],"different":[44,69,101,148,174],"initializations":[45,102],"techniques":[46],"Nonnegative":[48],"Matrix":[49],"Factorization":[50],"(NNMF)":[51],"extraction":[54],"synergies.":[57],"Previous":[58],"research":[59],"that":[62,180],"NNMF":[63,81,111],"might":[65],"be":[66],"affected":[67],"by":[68,146,204],"kinds":[70,190],"initialization.":[72],"present":[74],"study":[75],"aims":[76],"at":[77],"optimizing":[78],"traditional":[80],"initialization":[82,175,182,192],"decomposing":[84],"EMG":[85,123,138],"data":[86,132,164],"with":[87],"temporal":[88],"dependencies,":[89],"typical":[90],"pathological":[92],"conditions":[93],"such":[94],"as":[95],"stroke.":[96],"For":[97],"purpose,":[99],"three":[100],"have":[103,114,133,143],"implemented:":[105],"random,":[106],"SVD-based,":[107],"sparse.":[109],"Traditional":[110],"update":[112],"rules":[113],"used":[116],"identify":[118],"synergies":[120,161,197],"from":[121,128,136],"experimental":[122],"signals":[124],"recorded":[125],"during":[126],"pedaling":[127],"11":[129],"subjects.":[130],"Synthetic":[131],"generated":[135],"real":[137],"data,":[139],"whose":[140],"activation":[141,200],"coefficients":[142,201],"corrupted":[145],"simulating":[147],"degrees":[149],"correlation.":[151,208],"By":[152],"measuring":[153],"quality":[155],"identification":[157],"original":[160],"underlying":[162],"it":[165],"possible":[168],"compare":[170],"techniques.":[176],"Simulation":[177],"results":[178],"demonstrate":[179],"sparse":[181],"performs":[183],"significantly":[184],"better":[185],"than":[186],"all":[187],"other":[189],"in":[193],"accurately":[194],"estimating":[195],"when":[198],"are":[202],"characterized":[203],"high":[205],"levels":[206]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
