{"id":"https://openalex.org/W2006298498","doi":"https://doi.org/10.1109/igarss.2012.6350518","title":"Parallel computing of covariance matrix and its application on hyperspectral data process","display_name":"Parallel computing of covariance matrix and its application on hyperspectral data process","publication_year":2012,"publication_date":"2012-07-01","ids":{"openalex":"https://openalex.org/W2006298498","doi":"https://doi.org/10.1109/igarss.2012.6350518","mag":"2006298498"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2012.6350518","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2012.6350518","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Geoscience and Remote Sensing Symposium","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/A5103185751","display_name":"Maozhi Wang","orcid":"https://orcid.org/0000-0001-5233-4844"},"institutions":[{"id":"https://openalex.org/I31595395","display_name":"Chengdu University of Technology","ror":"https://ror.org/05pejbw21","country_code":"CN","type":"education","lineage":["https://openalex.org/I31595395"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mao-zhi Wang","raw_affiliation_strings":["Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","institution_ids":["https://openalex.org/I31595395"]},{"raw_affiliation_string":"Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China","institution_ids":["https://openalex.org/I31595395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101536286","display_name":"Daming Wang","orcid":"https://orcid.org/0000-0002-5046-5469"},"institutions":[{"id":"https://openalex.org/I2799486974","display_name":"China Geological Survey","ror":"https://ror.org/04wtq2305","country_code":"CN","type":"other","lineage":["https://openalex.org/I2799486974"]},{"id":"https://openalex.org/I35364215","display_name":"Naval Postgraduate School","ror":"https://ror.org/033yfkj90","country_code":"US","type":"education","lineage":["https://openalex.org/I1330347796","https://openalex.org/I3130687028","https://openalex.org/I35364215"]}],"countries":["CN","US"],"is_corresponding":false,"raw_author_name":"Da-ming Wang","raw_affiliation_strings":["China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing, China","China Aero Geophysical Survey & Remote Sensing Center for Land and Resource, Beijing, 100083, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing, China","institution_ids":["https://openalex.org/I2799486974"]},{"raw_affiliation_string":"China Aero Geophysical Survey & Remote Sensing Center for Land and Resource, Beijing, 100083, China","institution_ids":["https://openalex.org/I35364215"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102962651","display_name":"Wenxi Xu","orcid":"https://orcid.org/0000-0001-6298-7742"},"institutions":[{"id":"https://openalex.org/I31595395","display_name":"Chengdu University of Technology","ror":"https://ror.org/05pejbw21","country_code":"CN","type":"education","lineage":["https://openalex.org/I31595395"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wen-xi Xu","raw_affiliation_strings":["Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","institution_ids":["https://openalex.org/I31595395"]},{"raw_affiliation_string":"Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China","institution_ids":["https://openalex.org/I31595395"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088065995","display_name":"Bin-yang Chen","orcid":null},"institutions":[{"id":"https://openalex.org/I31595395","display_name":"Chengdu University of Technology","ror":"https://ror.org/05pejbw21","country_code":"CN","type":"education","lineage":["https://openalex.org/I31595395"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bin-yang Chen","raw_affiliation_strings":["Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","institution_ids":["https://openalex.org/I31595395"]},{"raw_affiliation_string":"Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China","institution_ids":["https://openalex.org/I31595395"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101970144","display_name":"Ke Guo","orcid":"https://orcid.org/0000-0001-6866-3212"},"institutions":[{"id":"https://openalex.org/I31595395","display_name":"Chengdu University of Technology","ror":"https://ror.org/05pejbw21","country_code":"CN","type":"education","lineage":["https://openalex.org/I31595395"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ke Guo","raw_affiliation_strings":["Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Sichuan, Chengdu, China","institution_ids":["https://openalex.org/I31595395"]},{"raw_affiliation_string":"Geomathematics Key Lab of Sichuan Province, Chengdu University of Technology, 610059, China","institution_ids":["https://openalex.org/I31595395"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"4058","last_page":"4061"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9998000264167786,"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":0.9998000264167786,"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/T13890","display_name":"Remote Sensing and Land Use","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9902999997138977,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.7539610862731934},{"id":"https://openalex.org/keywords/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.750373125076294},{"id":"https://openalex.org/keywords/message-passing-interface","display_name":"Message Passing Interface","score":0.722739577293396},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7034137845039368},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.6906517744064331},{"id":"https://openalex.org/keywords/dimensionality-reduction","display_name":"Dimensionality reduction","score":0.6246399283409119},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.5480787754058838},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.504738450050354},{"id":"https://openalex.org/keywords/curse-of-dimensionality","display_name":"Curse of dimensionality","score":0.48908287286758423},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.46033746004104614},{"id":"https://openalex.org/keywords/covariance","display_name":"Covariance","score":0.4424499273300171},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.4202965795993805},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.38815680146217346},{"id":"https://openalex.org/keywords/message-passing","display_name":"Message passing","score":0.33188313245773315},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.31159359216690063},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.31019771099090576},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1764240860939026},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.07004439830780029}],"concepts":[{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.7539610862731934},{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.750373125076294},{"id":"https://openalex.org/C166782233","wikidata":"https://www.wikidata.org/wiki/Q127879","display_name":"Message Passing Interface","level":3,"score":0.722739577293396},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7034137845039368},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.6906517744064331},{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.6246399283409119},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.5480787754058838},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.504738450050354},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.48908287286758423},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.46033746004104614},{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.4424499273300171},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.4202965795993805},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.38815680146217346},{"id":"https://openalex.org/C854659","wikidata":"https://www.wikidata.org/wiki/Q1859284","display_name":"Message passing","level":2,"score":0.33188313245773315},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.31159359216690063},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.31019771099090576},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1764240860939026},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07004439830780029},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2012.6350518","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2012.6350518","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.7900000214576721,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1993320379","https://openalex.org/W2058590043","https://openalex.org/W2084138550","https://openalex.org/W2088310270","https://openalex.org/W2131697388"],"related_works":["https://openalex.org/W2292979300","https://openalex.org/W2124048060","https://openalex.org/W1902983110","https://openalex.org/W2378910916","https://openalex.org/W4386915331","https://openalex.org/W2086666199","https://openalex.org/W1511717675","https://openalex.org/W2116006827","https://openalex.org/W2361929291","https://openalex.org/W1493716264"],"abstract_inverted_index":{"A":[0],"parallel":[1,38,65],"algorithm":[2,39,66],"of":[3,15,36],"covariance":[4],"matrix,":[5],"which":[6],"is":[7,29,52],"used":[8,61],"to":[9,41,62],"realize":[10],"the":[11,37,42,64],"dimensionality":[12],"reduction":[13],"process":[14],"hyperspectral":[16],"image":[17],"based":[18],"on":[19],"Principal":[20],"Component":[21],"Analysis":[22],"(PCA)":[23],"and":[24,57,80],"Minimum":[25],"Noise":[26],"Fraction":[27],"(MNF),":[28],"proposed":[30],"in":[31,71],"this":[32,72],"paper.":[33],"The":[34,54],"performance":[35],"according":[40],"experiment":[43],"under":[44],"cluster":[45],"circumstance":[46],"with":[47],"message":[48],"passing":[49],"interface":[50],"(MPI)":[51],"discussed.":[53],"Gustafsun":[55],"Law":[56,59],"Amdahl":[58],"usually":[60],"analyze":[63],"results":[67],"are":[68],"also":[69],"discussed":[70],"experiment.":[73],"At":[74],"last,":[75],"some":[76],"further":[77],"research":[78],"areas":[79],"questions":[81],"have":[82],"been":[83],"listed.":[84]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}