{"id":"https://openalex.org/W4312836060","doi":"https://doi.org/10.1109/igarss46834.2022.9884606","title":"Computationally-Efficient Bandwise GBM Model for Hyperspectral Nonlinear Unmixing","display_name":"Computationally-Efficient Bandwise GBM Model for Hyperspectral Nonlinear Unmixing","publication_year":2022,"publication_date":"2022-07-17","ids":{"openalex":"https://openalex.org/W4312836060","doi":"https://doi.org/10.1109/igarss46834.2022.9884606"},"language":"en","primary_location":{"id":"doi:10.1109/igarss46834.2022.9884606","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9884606","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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/A5043214136","display_name":"Touseef Ahmad","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]},{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Touseef Ahmad","raw_affiliation_strings":["Space Applications Centre Ahmedabad, Indian Space Research Organization,India","Department of Computational and Data Sciences, Indian Institute of Science Bangalore, India","Space Applications Centre Ahmedabad, Indian Space Research Organization, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization,India","institution_ids":["https://openalex.org/I1289461252"]},{"raw_affiliation_string":"Department of Computational and Data Sciences, Indian Institute of Science Bangalore, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization, India","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016258315","display_name":"Soumyendu Raha","orcid":"https://orcid.org/0000-0003-3530-7507"},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Soumyendu Raha","raw_affiliation_strings":["Indian Institute of Science Bangalore,Department of Computational and Data Sciences,India","Department of Computational and Data Sciences, Indian Institute of Science Bangalore, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Science Bangalore,Department of Computational and Data Sciences,India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Department of Computational and Data Sciences, Indian Institute of Science Bangalore, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064920627","display_name":"Rosly Boy Lyngdoh","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Rosly B Lyngdoh","raw_affiliation_strings":["Space Applications Centre Ahmedabad, Indian Space Research Organization,India","Space Applications Centre Ahmedabad, Indian Space Research Organization, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization,India","institution_ids":["https://openalex.org/I1289461252"]},{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization, India","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059053246","display_name":"Anand S. Sahadevan","orcid":"https://orcid.org/0000-0002-2005-8934"},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anand S S","raw_affiliation_strings":["Space Applications Centre Ahmedabad, Indian Space Research Organization,India","Space Applications Centre Ahmedabad, Indian Space Research Organization, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization,India","institution_ids":["https://openalex.org/I1289461252"]},{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization, India","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104534313","display_name":"Praveen Kumar Gupta","orcid":"https://orcid.org/0000-0002-3776-5491"},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Praveen K Gupta","raw_affiliation_strings":["Space Applications Centre Ahmedabad, Indian Space Research Organization,India","Space Applications Centre Ahmedabad, Indian Space Research Organization, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization,India","institution_ids":["https://openalex.org/I1289461252"]},{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization, India","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113960627","display_name":"Arundhati Misra","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Arundhati Misra","raw_affiliation_strings":["Space Applications Centre Ahmedabad, Indian Space Research Organization,India","Space Applications Centre Ahmedabad, Indian Space Research Organization, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization,India","institution_ids":["https://openalex.org/I1289461252"]},{"raw_affiliation_string":"Space Applications Centre Ahmedabad, Indian Space Research Organization, India","institution_ids":["https://openalex.org/I1289461252"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.28412256,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1612","last_page":"1615"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10689","display_name":"Remote-Sensing Image Classification","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.992900013923645,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/mathematics","display_name":"Mathematics","score":0.5776954293251038},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5397388339042664},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.5396997332572937},{"id":"https://openalex.org/keywords/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.5298894047737122},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.42690083384513855},{"id":"https://openalex.org/keywords/mixing","display_name":"Mixing (physics)","score":0.4237346649169922},{"id":"https://openalex.org/keywords/square-root","display_name":"Square root","score":0.4230068624019623},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.4052317440509796},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.32423603534698486},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.2304149568080902},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.12328356504440308},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11811798810958862},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.11316823959350586}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5776954293251038},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5397388339042664},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.5396997332572937},{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.5298894047737122},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.42690083384513855},{"id":"https://openalex.org/C138777275","wikidata":"https://www.wikidata.org/wiki/Q6884054","display_name":"Mixing (physics)","level":2,"score":0.4237346649169922},{"id":"https://openalex.org/C11577676","wikidata":"https://www.wikidata.org/wiki/Q134237","display_name":"Square root","level":2,"score":0.4230068624019623},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.4052317440509796},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.32423603534698486},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2304149568080902},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12328356504440308},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11811798810958862},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.11316823959350586},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"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/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/igarss46834.2022.9884606","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9884606","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},{"id":"pmh:oai::76418","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306401429","display_name":"ePrints@IISc (Indian Institute of Science)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I59270414","host_organization_name":"Indian Institute of Science Bangalore","host_organization_lineage":["https://openalex.org/I59270414"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1957094454","https://openalex.org/W2019149505","https://openalex.org/W2042626896","https://openalex.org/W2058532290","https://openalex.org/W2078222544","https://openalex.org/W2084252873","https://openalex.org/W2125298866","https://openalex.org/W2127062304","https://openalex.org/W2127827417","https://openalex.org/W2148432924","https://openalex.org/W2157321686","https://openalex.org/W2342750892","https://openalex.org/W2347044882","https://openalex.org/W2591248827","https://openalex.org/W2767898978","https://openalex.org/W2774517539","https://openalex.org/W2896961953","https://openalex.org/W3106967590","https://openalex.org/W4292363360","https://openalex.org/W6746968042"],"related_works":["https://openalex.org/W2072166414","https://openalex.org/W3209970181","https://openalex.org/W2060875994","https://openalex.org/W3034375524","https://openalex.org/W4230131218","https://openalex.org/W2070598848","https://openalex.org/W2044184146","https://openalex.org/W4313014865","https://openalex.org/W2019190440","https://openalex.org/W2343470940"],"abstract_inverted_index":{"Nonlinear":[0],"Unmixing":[1],"using":[2,138],"the":[3,17,71,77,81,88,97,108,129,135,161],"Band-wise":[4],"Generalized":[5],"Bilinear":[6],"Mixing":[7],"(NU-BGBM)":[8],"model":[9,137],"specifies":[10],"an":[11,92,168],"acceptable":[12],"mixing":[13],"scenario":[14],"up":[15],"to":[16,50],"second-order":[18],"interaction":[19],"of":[20,28,70,101,128,183],"light":[21],"rays":[22],"and":[23,40,67,91,123,150],"also":[24],"suppresses":[25],"various":[26],"types":[27],"mixed":[29,121],"noise":[30],"while":[31,173],"performing":[32],"un-mixing.":[33],"However,":[34],"NU-BGBM":[35,72,136,180],"requires":[36],"high":[37],"computational":[38],"time":[39,166],"multiple":[41],"parameter":[42],"tuning,":[43],"which":[44],"could":[45],"practically":[46],"limit":[47],"its":[48],"application":[49],"large":[51,186],"HyperSpectral":[52],"Images":[53],"(HSIs).":[54],"In":[55,74],"this":[56,75],"context,":[57],"we":[58],"propose":[59],"a":[60,65],"computationally":[61],"efficient":[62],"BGBM":[63],"as":[64],"fast":[66],"robust":[68],"variant":[69],"method,":[73],"model,":[76],"objective":[78],"function":[79],"for":[80,106],"non-linear":[82],"optimization":[83],"scheme":[84,94],"is":[85,104],"designed":[86],"without":[87],"sparsity":[89],"constraint,":[90],"iterative":[93],"based":[95],"on":[96,117,185],"Alternating":[98],"Direction":[99],"Method":[100],"Multipliers":[102],"(ADMM)":[103],"formulated":[105],"solving":[107],"proposed":[109,130,162],"model.":[110],"Extensive":[111],"analyses":[112],"have":[113],"been":[114],"carried":[115],"out":[116],"synthetic":[118],"(with":[119],"simulated":[120],"noise)":[122],"real":[124],"HSIs.":[125],"The":[126],"performance":[127],"method":[131,163],"was":[132],"compared":[133],"with":[134],"signal-to-reconstruction":[139],"error":[140],"(SRE),":[141],"abundance":[142],"Root-Mean-Square":[143,147],"Error":[144,148],"(aRMSE),":[145],"source":[146],"(sRMSE),":[149],"Root-Sum-Squared":[151],"(RSS)":[152],"error.":[153],"Results":[154],"from":[155],"extensive":[156],"numerical":[157],"analysis":[158],"reveal":[159],"that":[160],"reduces":[164],"computation":[165],"(on":[167],"average":[169],"six":[170],"times":[171],"faster)":[172],"being":[174],"comparable":[175],"(and":[176],"often":[177],"better)":[178],"than":[179],"in":[181],"terms":[182],"accuracy":[184],"data":[187],"sets.":[188]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
