{"id":"https://openalex.org/W1971497947","doi":"https://doi.org/10.1109/mlsp.2012.6349756","title":"Hierarchical sparse brain network estimation","display_name":"Hierarchical sparse brain network estimation","publication_year":2012,"publication_date":"2012-09-01","ids":{"openalex":"https://openalex.org/W1971497947","doi":"https://doi.org/10.1109/mlsp.2012.6349756","mag":"1971497947"},"language":"en","primary_location":{"id":"doi:10.1109/mlsp.2012.6349756","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mlsp.2012.6349756","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Workshop on Machine Learning for Signal Processing","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/A5084681382","display_name":"Abd\u2010Krim Seghouane","orcid":"https://orcid.org/0000-0003-4619-734X"},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]},{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Abd-Krim Seghouane","raw_affiliation_strings":["National ICT Australia, Canberra Research Laboratory, College of Engineering and Computer Science, Australian National University, Canberra, Australia","National ICT Australia, Canberra Research Laboratory, The Australian National University, College of Engineering and Computer Science, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National ICT Australia, Canberra Research Laboratory, College of Engineering and Computer Science, Australian National University, Canberra, Australia","institution_ids":["https://openalex.org/I118347636","https://openalex.org/I42894916"]},{"raw_affiliation_string":"National ICT Australia, Canberra Research Laboratory, The Australian National University, College of Engineering and Computer Science, Australia","institution_ids":["https://openalex.org/I118347636"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5007304996","display_name":"Muhammad Usman Khalid","orcid":"https://orcid.org/0000-0003-1636-3351"},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]},{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Muhammad Usman Khalid","raw_affiliation_strings":["National ICT Australia, Canberra Research Laboratory, College of Engineering and Computer Science, Australian National University, Canberra, Australia","National ICT Australia, Canberra Research Laboratory, The Australian National University, College of Engineering and Computer Science, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National ICT Australia, Canberra Research Laboratory, College of Engineering and Computer Science, Australian National University, Canberra, Australia","institution_ids":["https://openalex.org/I118347636","https://openalex.org/I42894916"]},{"raw_affiliation_string":"National ICT Australia, Canberra Research Laboratory, The Australian National University, College of Engineering and Computer Science, Australia","institution_ids":["https://openalex.org/I118347636"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2895,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.56058036,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10241","display_name":"Functional Brain Connectivity Studies","score":0.9987000226974487,"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/T10241","display_name":"Functional Brain Connectivity Studies","score":0.9987000226974487,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/computer-science","display_name":"Computer science","score":0.6344970464706421},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.49533572793006897},{"id":"https://openalex.org/keywords/regression","display_name":"Regression","score":0.4830663502216339},{"id":"https://openalex.org/keywords/constraint","display_name":"Constraint (computer-aided design)","score":0.46933212876319885},{"id":"https://openalex.org/keywords/regularization","display_name":"Regularization (linguistics)","score":0.43421152234077454},{"id":"https://openalex.org/keywords/hierarchy","display_name":"Hierarchy","score":0.431209921836853},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3625578284263611},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3621219992637634},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23428037762641907},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.12277254462242126}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6344970464706421},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.49533572793006897},{"id":"https://openalex.org/C83546350","wikidata":"https://www.wikidata.org/wiki/Q1139051","display_name":"Regression","level":2,"score":0.4830663502216339},{"id":"https://openalex.org/C2776036281","wikidata":"https://www.wikidata.org/wiki/Q48769818","display_name":"Constraint (computer-aided design)","level":2,"score":0.46933212876319885},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.43421152234077454},{"id":"https://openalex.org/C31170391","wikidata":"https://www.wikidata.org/wiki/Q188619","display_name":"Hierarchy","level":2,"score":0.431209921836853},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3625578284263611},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3621219992637634},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23428037762641907},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12277254462242126},{"id":"https://openalex.org/C34447519","wikidata":"https://www.wikidata.org/wiki/Q179522","display_name":"Market economy","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/mlsp.2012.6349756","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mlsp.2012.6349756","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Workshop on Machine Learning for Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:openresearch-repository.anu.edu.au:1885/71356","is_oa":false,"landing_page_url":"http://hdl.handle.net/1885/71356","pdf_url":null,"source":{"id":"https://openalex.org/S4306402539","display_name":"ANU Open Research (Australian National University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I118347636","host_organization_name":"Australian National University","host_organization_lineage":["https://openalex.org/I118347636"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE International Workshop on Machine Learning for Signal Processing, MLSP","raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.4099999964237213}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W83557988","https://openalex.org/W1575232566","https://openalex.org/W1970695058","https://openalex.org/W1971600338","https://openalex.org/W1979426401","https://openalex.org/W1995714794","https://openalex.org/W2001235259","https://openalex.org/W2001334414","https://openalex.org/W2003120749","https://openalex.org/W2040296279","https://openalex.org/W2045220410","https://openalex.org/W2045326603","https://openalex.org/W2056636001","https://openalex.org/W2058046532","https://openalex.org/W2062195890","https://openalex.org/W2111564755","https://openalex.org/W2113107995","https://openalex.org/W2114549884","https://openalex.org/W2117289962","https://openalex.org/W2129109788","https://openalex.org/W2130682517","https://openalex.org/W2138019504","https://openalex.org/W2138412635","https://openalex.org/W2138574546","https://openalex.org/W2162516089","https://openalex.org/W2167325310","https://openalex.org/W2168094269","https://openalex.org/W3098745759","https://openalex.org/W3105034597","https://openalex.org/W6677683451"],"related_works":["https://openalex.org/W2365264209","https://openalex.org/W2509431957","https://openalex.org/W2026999166","https://openalex.org/W1599954583","https://openalex.org/W4211007821","https://openalex.org/W2802395037","https://openalex.org/W4389565704","https://openalex.org/W1996802783","https://openalex.org/W3207031006","https://openalex.org/W1976216854"],"abstract_inverted_index":{"Brain":[0],"networks":[1,41,123],"explore":[2],"the":[3,12,15,29,46,66,69,79,101,118,131,136],"dependence":[4],"relationships":[5],"between":[6],"brain":[7,35,40,60,86,122],"regions":[8],"under":[9],"consideration":[10],"through":[11],"estimation":[13],"of":[14,64,120,130,135],"precision":[16],"matrix.":[17],"An":[18],"approach":[19,116,138],"based":[20],"on":[21,147],"linear":[22],"regression":[23,53],"is":[24,107,145],"adopted":[25],"here":[26],"for":[27],"estimating":[28,85],"partial":[30],"correlation":[31],"matrix":[32],"from":[33],"functional":[34],"imaging":[36],"data.":[37,150],"Knowing":[38],"that":[39,99,124],"are":[42,125],"sparse":[43,59,126],"and":[44,109],"hierarchical,":[45],"l":[47,70,93],"<sub":[48,71,94],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[49,72,95],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">1</sub>":[50,73,96],"-norm":[51,74],"penalized":[52],"has":[54,117],"been":[55],"used":[56],"to":[57,141],"estimate":[58],"networks.":[61,87],"Although":[62],"capable":[63],"including":[65],"sparsity":[67,102,115],"information,":[68],"penalty":[75],"alone":[76],"doesn't":[77],"incorporate":[78],"hierarchical":[80,105,114],"structure":[81],"prior":[82],"information":[83],"when":[84],"In":[88],"this":[89],"paper,":[90],"a":[91],"new":[92],"regularization":[97],"method":[98],"applies":[100],"constraint":[103],"at":[104,127],"levels":[106,129],"proposed":[108,137],"its":[110],"implementation":[111],"described.":[112],"This":[113],"advantage":[119],"generating":[121],"all":[128],"hierarchy.":[132],"The":[133],"performance":[134],"in":[139],"comparison":[140],"other":[142],"existing":[143],"methods":[144],"illustrated":[146],"real":[148],"fMRI":[149]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
