{"id":"https://openalex.org/W7140811062","doi":"https://doi.org/10.1109/ieeeconf67917.2025.11443747","title":"Low Separation Rank Ridge Regression for Matrix Covariates with Applications in Neuroimaging","display_name":"Low Separation Rank Ridge Regression for Matrix Covariates with Applications in Neuroimaging","publication_year":2025,"publication_date":"2025-10-26","ids":{"openalex":"https://openalex.org/W7140811062","doi":"https://doi.org/10.1109/ieeeconf67917.2025.11443747"},"language":null,"primary_location":{"id":"doi:10.1109/ieeeconf67917.2025.11443747","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf67917.2025.11443747","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 59th Asilomar Conference on Signals, Systems, and Computers","raw_type":"proceedings-article"},"type":"conference-paper","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/A5104194230","display_name":"Lakshitha Sanchuka Ramanayake","orcid":null},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lakshitha Ramanayake","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044518805","display_name":"Batoul Taki","orcid":null},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Batoul Taki","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130713839","display_name":"Linden Parkes","orcid":null},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Linden Parkes","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018541767","display_name":"Carrisa V. Cocuzza","orcid":"https://orcid.org/0000-0001-5117-2433"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Carrisa Cocuzza","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106525988","display_name":"Avram J. Holmes","orcid":"https://orcid.org/0000-0001-6583-803X"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Avram Holmes","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017827035","display_name":"David H. Zald","orcid":"https://orcid.org/0000-0002-1229-2923"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David H. Zald","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Center for Advanced Human Brain Imaging Research,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5028718006","display_name":"Waheed U. Bajwa","orcid":"https://orcid.org/0000-0003-4406-5263"},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Waheed U. Bajwa","raw_affiliation_strings":["Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rutgers University&#x2013;New Brunswick,Department of Electrical and Computer Engineering,Piscataway,NJ","institution_ids":["https://openalex.org/I102322142"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I102322142"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.77029817,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1323","last_page":"1330"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11094","display_name":"Face Recognition and Perception","score":0.17249999940395355,"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"}},"topics":[{"id":"https://openalex.org/T11094","display_name":"Face Recognition and Perception","score":0.17249999940395355,"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/T10241","display_name":"Functional Brain Connectivity Studies","score":0.1412999927997589,"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/T12303","display_name":"Tensor decomposition and applications","score":0.10100000351667404,"subfield":{"id":"https://openalex.org/subfields/2605","display_name":"Computational Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/covariate","display_name":"Covariate","score":0.5799999833106995},{"id":"https://openalex.org/keywords/regression","display_name":"Regression","score":0.5011000037193298},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4819999933242798},{"id":"https://openalex.org/keywords/ridge","display_name":"Ridge","score":0.47540000081062317},{"id":"https://openalex.org/keywords/rank","display_name":"Rank (graph theory)","score":0.4133000075817108},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.39500001072883606},{"id":"https://openalex.org/keywords/linear-regression","display_name":"Linear regression","score":0.39469999074935913}],"concepts":[{"id":"https://openalex.org/C119043178","wikidata":"https://www.wikidata.org/wiki/Q320723","display_name":"Covariate","level":2,"score":0.5799999833106995},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5202999711036682},{"id":"https://openalex.org/C83546350","wikidata":"https://www.wikidata.org/wiki/Q1139051","display_name":"Regression","level":2,"score":0.5011000037193298},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4819999933242798},{"id":"https://openalex.org/C32277403","wikidata":"https://www.wikidata.org/wiki/Q740445","display_name":"Ridge","level":2,"score":0.47540000081062317},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.46239998936653137},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4207000136375427},{"id":"https://openalex.org/C164226766","wikidata":"https://www.wikidata.org/wiki/Q7293202","display_name":"Rank (graph theory)","level":2,"score":0.4133000075817108},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.39500001072883606},{"id":"https://openalex.org/C48921125","wikidata":"https://www.wikidata.org/wiki/Q10861030","display_name":"Linear regression","level":2,"score":0.39469999074935913},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3725999891757965},{"id":"https://openalex.org/C2776061190","wikidata":"https://www.wikidata.org/wiki/Q7451805","display_name":"Separation (statistics)","level":2,"score":0.37119999527931213},{"id":"https://openalex.org/C152877465","wikidata":"https://www.wikidata.org/wiki/Q208042","display_name":"Regression analysis","level":2,"score":0.3492000102996826},{"id":"https://openalex.org/C58693492","wikidata":"https://www.wikidata.org/wiki/Q551875","display_name":"Neuroimaging","level":2,"score":0.3400999903678894},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3312999904155731},{"id":"https://openalex.org/C2780985081","wikidata":"https://www.wikidata.org/wiki/Q676502","display_name":"Data Matrix","level":5,"score":0.2953999936580658},{"id":"https://openalex.org/C90199385","wikidata":"https://www.wikidata.org/wiki/Q6692777","display_name":"Low-rank approximation","level":3,"score":0.28600001335144043},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.28290000557899475},{"id":"https://openalex.org/C107673813","wikidata":"https://www.wikidata.org/wiki/Q812534","display_name":"Bayesian probability","level":2,"score":0.263700008392334},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.2581000030040741}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ieeeconf67917.2025.11443747","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ieeeconf67917.2025.11443747","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 59th Asilomar Conference on Signals, Systems, and Computers","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4280503988265991,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W1556598185","https://openalex.org/W1580176742","https://openalex.org/W1969689709","https://openalex.org/W1970176196","https://openalex.org/W2016444985","https://openalex.org/W2024165284","https://openalex.org/W2024729467","https://openalex.org/W2033481539","https://openalex.org/W2081297271","https://openalex.org/W2101135654","https://openalex.org/W2103193999","https://openalex.org/W2136002544","https://openalex.org/W2154972590","https://openalex.org/W2166218246","https://openalex.org/W2517402701","https://openalex.org/W2768292343","https://openalex.org/W2963548292","https://openalex.org/W2985386081","https://openalex.org/W3033283747","https://openalex.org/W3159779018","https://openalex.org/W3168763471","https://openalex.org/W4224947618","https://openalex.org/W4248337693","https://openalex.org/W4296198225","https://openalex.org/W4387641334","https://openalex.org/W4387935714"],"related_works":[],"abstract_inverted_index":{"Modern":[0],"applications":[1],"involving":[2],"matrix-valued":[3],"covariates,":[4],"such":[5,24],"as":[6],"computational":[7],"neuroscience,":[8],"challenge":[9],"classical":[10],"regression":[11,43,74,140],"methods":[12],"due":[13],"to":[14,70,122,134],"their":[15],"high":[16],"dimensionality":[17],"and":[18,30,35,98,118,137],"complex":[19],"structural":[20,66,123],"patterns.":[21],"Vectorization":[22],"of":[23,61,82,114],"matrices":[25],"destroys":[26],"inherent":[27],"spatial":[28],"relationships":[29],"often":[31],"results":[32],"in":[33,100],"high-dimensional":[34],"ill-posed":[36],"problems.":[37],"This":[38],"paper":[39],"proposes":[40],"a":[41,47,83],"ridge":[42,73,139],"framework":[44],"that":[45],"imposes":[46],"Low":[48],"Separation-Rank":[49],"(LSR)":[50],"structure":[51],"on":[52,108],"the":[53,58,62,71,80,101,112,115,129],"coefficient":[54],"matrix,":[55],"significantly":[56],"reducing":[57],"sample":[59],"complexity":[60],"problem,":[63],"while":[64],"preserving":[65],"information.":[67],"In":[68],"addition":[69],"original":[72],"formulation,":[75],"this":[76],"work":[77],"also":[78],"investigates":[79],"use":[81],"more":[84],"tractable":[85],"separable":[86],"regularizer.":[87],"A":[88],"Block":[89],"Coordinate":[90],"Descent":[91],"(BCD)":[92],"parameter":[93],"estimation":[94],"algorithm":[95],"is":[96,105],"proposed,":[97],"convergence":[99],"objective":[102],"function":[103],"value":[104],"proved.":[106],"Experiments":[107],"synthetic":[109],"data":[110],"demonstrate":[111],"effectiveness":[113],"proposed":[116],"method":[117],"validate":[119,128],"its":[120],"robustness":[121],"perturbations.":[124],"Finally,":[125],"neuroimaging":[126],"experiments":[127],"method\u2019s":[130],"predictive":[131],"performance":[132],"relative":[133],"Tucker":[135],"tensor":[136],"vector-based":[138],"models,":[141],"achieving":[142],"competitive":[143],"accuracy":[144],"with":[145],"substantially":[146],"fewer":[147],"parameters.":[148]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2026-03-27T00:00:00"}
