{"id":"https://openalex.org/W2291428227","doi":"https://doi.org/10.1109/globalsip.2015.7418313","title":"Joint estimation of activity signal and HRF in fMRI using fused LASSO","display_name":"Joint estimation of activity signal and HRF in fMRI using fused LASSO","publication_year":2015,"publication_date":"2015-12-01","ids":{"openalex":"https://openalex.org/W2291428227","doi":"https://doi.org/10.1109/globalsip.2015.7418313","mag":"2291428227"},"language":"en","primary_location":{"id":"doi:10.1109/globalsip.2015.7418313","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globalsip.2015.7418313","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP)","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/A5050329939","display_name":"Priya Aggarwal","orcid":"https://orcid.org/0000-0002-2993-4021"},"institutions":[{"id":"https://openalex.org/I119939252","display_name":"Indraprastha Institute of Information Technology Delhi","ror":"https://ror.org/03vfp4g33","country_code":"IN","type":"education","lineage":["https://openalex.org/I119939252"]},{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Priya Aggarwal","raw_affiliation_strings":["Department of Electronics and Communication Engineering, IIIT-Delhi, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics and Communication Engineering, IIIT-Delhi, India","institution_ids":["https://openalex.org/I119939252","https://openalex.org/I68891433"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057412604","display_name":"Anubha Gupta","orcid":"https://orcid.org/0000-0002-7752-1926"},"institutions":[{"id":"https://openalex.org/I68891433","display_name":"Indian Institute of Technology Delhi","ror":"https://ror.org/049tgcd06","country_code":"IN","type":"education","lineage":["https://openalex.org/I68891433"]},{"id":"https://openalex.org/I119939252","display_name":"Indraprastha Institute of Information Technology Delhi","ror":"https://ror.org/03vfp4g33","country_code":"IN","type":"education","lineage":["https://openalex.org/I119939252"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anubha Gupta","raw_affiliation_strings":["Department of Electronics and Communication Engineering, IIIT-Delhi, India"],"affiliations":[{"raw_affiliation_string":"Department of Electronics and Communication Engineering, IIIT-Delhi, India","institution_ids":["https://openalex.org/I119939252","https://openalex.org/I68891433"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5107913960","display_name":"Ajay Garg","orcid":"https://orcid.org/0009-0003-5396-5607"},"institutions":[{"id":"https://openalex.org/I63739035","display_name":"All India Institute of Medical Sciences","ror":"https://ror.org/02dwcqs71","country_code":"IN","type":"education","lineage":["https://openalex.org/I2799351866","https://openalex.org/I4210148677","https://openalex.org/I63739035"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ajay Garg","raw_affiliation_strings":["Department of Neuroradiology, AIIMS, Delhi, India"],"affiliations":[{"raw_affiliation_string":"Department of Neuroradiology, AIIMS, Delhi, India","institution_ids":["https://openalex.org/I63739035"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5050329939"],"corresponding_institution_ids":["https://openalex.org/I119939252","https://openalex.org/I68891433"],"apc_list":null,"apc_paid":null,"fwci":0.2635,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.64074376,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"829","last_page":"833"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","score":0.9998999834060669,"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/T10378","display_name":"Advanced MRI Techniques and Applications","score":0.9998999834060669,"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/T10241","display_name":"Functional Brain Connectivity Studies","score":0.9997000098228455,"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/T10372","display_name":"Cardiac Imaging and Diagnostics","score":0.991599977016449,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.7898004055023193},{"id":"https://openalex.org/keywords/lasso","display_name":"Lasso (programming language)","score":0.7460874915122986},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5858436226844788},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5642089247703552},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.5598893761634827},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.49567949771881104},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3974422514438629},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.36678820848464966},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.13320431113243103}],"concepts":[{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.7898004055023193},{"id":"https://openalex.org/C37616216","wikidata":"https://www.wikidata.org/wiki/Q3218363","display_name":"Lasso (programming language)","level":2,"score":0.7460874915122986},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5858436226844788},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5642089247703552},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.5598893761634827},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.49567949771881104},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3974422514438629},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36678820848464966},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.13320431113243103},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","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},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globalsip.2015.7418313","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globalsip.2015.7418313","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W1967101654","https://openalex.org/W1970208077","https://openalex.org/W1978660262","https://openalex.org/W1989613824","https://openalex.org/W2023513683","https://openalex.org/W2025319485","https://openalex.org/W2027240398","https://openalex.org/W2040021436","https://openalex.org/W2040429503","https://openalex.org/W2051442296","https://openalex.org/W2056636001","https://openalex.org/W2058713030","https://openalex.org/W2059916190","https://openalex.org/W2082906925","https://openalex.org/W2101721267","https://openalex.org/W2103386389","https://openalex.org/W2107187638","https://openalex.org/W2110745932","https://openalex.org/W2111464173","https://openalex.org/W2116649573","https://openalex.org/W2122413020","https://openalex.org/W2134491286","https://openalex.org/W2140514146","https://openalex.org/W2169043705","https://openalex.org/W2169366712","https://openalex.org/W2228663241","https://openalex.org/W3098745759","https://openalex.org/W3141027141"],"related_works":["https://openalex.org/W4256576576","https://openalex.org/W3090384609","https://openalex.org/W3194013178","https://openalex.org/W4249086404","https://openalex.org/W4236464082","https://openalex.org/W2212119398","https://openalex.org/W2790019364","https://openalex.org/W4288780803","https://openalex.org/W2187089732","https://openalex.org/W3163178158"],"abstract_inverted_index":{"In":[0,27],"this":[1],"paper,":[2],"we":[3],"propose":[4],"a":[5],"novel":[6],"voxel-based":[7],"method":[8,68],"for":[9,45,60],"joint":[10],"estimation":[11],"of":[12,52,65],"underlying":[13],"activity":[14,46],"signal":[15],"and":[16,37,48,54,74],"hemodynamic":[17],"response":[18],"function":[19],"(HRF)":[20],"in":[21],"functional":[22],"magnetic":[23],"resonance":[24],"imaging":[25],"(fMRI).":[26],"the":[28,66],"proposed":[29,67],"two":[30],"stage":[31],"iterative":[32],"framework,":[33],"fused-least":[34],"absolute":[35],"shrinkage":[36],"selection":[38],"operator":[39],"(Fused":[40],"LASSO)":[41],"penalty":[42],"is":[43,69],"utilized":[44],"detection":[47],"HRF":[49,59],"estimation.":[50,62],"Conditions":[51],"smoothness":[53],"sparsity":[55],"are":[56],"imposed":[57],"on":[58,71],"its":[61],"The":[63],"validity":[64],"demonstrated":[70],"both":[72],"synthetic":[73],"real":[75],"fMRI":[76],"data.":[77]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}