{"id":"https://openalex.org/W2889544372","doi":"https://doi.org/10.1145/3220228.3220242","title":"Machine learning classification methods in hyperspectral data processing for agricultural applications","display_name":"Machine learning classification methods in hyperspectral data processing for agricultural applications","publication_year":2018,"publication_date":"2018-04-20","ids":{"openalex":"https://openalex.org/W2889544372","doi":"https://doi.org/10.1145/3220228.3220242","mag":"2889544372"},"language":"en","primary_location":{"id":"doi:10.1145/3220228.3220242","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3220228.3220242","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Conference on Geoinformatics and Data Analysis","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://repositorio.inesctec.pt/handle/123456789/8093","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5022231017","display_name":"Jon\u00e1\u0161 Hru\u0161ka","orcid":"https://orcid.org/0000-0002-6132-3220"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Jon\u00e1\u0161 Hru\u0161ka","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052054587","display_name":"Telmo Ad\u00e3o","orcid":"https://orcid.org/0000-0002-2727-0014"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Telmo Ad\u00e3o","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080545852","display_name":"Lu\u00eds P\u00e1dua","orcid":"https://orcid.org/0000-0002-7570-9773"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Lu\u00eds P\u00e1dua","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034959467","display_name":"Pedro Marques","orcid":"https://orcid.org/0000-0003-0240-5469"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Pedro Marques","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e Alto, Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103099779","display_name":"A. Cunha","orcid":"https://orcid.org/0000-0002-3458-7693"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Ant\u00f3nio Cunha","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020489061","display_name":"Emanuel Peres","orcid":"https://orcid.org/0000-0001-5669-7976"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Emanuel Peres","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101977986","display_name":"Ant\u00f3nio Sousa","orcid":"https://orcid.org/0000-0002-9269-6855"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Ant\u00f3nio Sousa","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060198162","display_name":"Raul Morais","orcid":"https://orcid.org/0000-0003-2440-9153"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Raul Morais","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066556659","display_name":"Joaquim J. Sousa","orcid":"https://orcid.org/0000-0003-4533-930X"},"institutions":[{"id":"https://openalex.org/I155381812","display_name":"University of Tr\u00e1s-os-Montes and Alto Douro","ror":"https://ror.org/03qc8vh97","country_code":"PT","type":"education","lineage":["https://openalex.org/I155381812"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Joaquim J. Sousa","raw_affiliation_strings":["University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real"],"affiliations":[{"raw_affiliation_string":"University of Tr\u00e1s-os-Montes e, Alto Douro, Quinta de Prados, Vila Real","institution_ids":["https://openalex.org/I155381812"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":9,"corresponding_author_ids":["https://openalex.org/A5022231017"],"corresponding_institution_ids":["https://openalex.org/I155381812"],"apc_list":null,"apc_paid":null,"fwci":1.0455,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.81957413,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"137","last_page":"141"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9990000128746033,"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":0.9990000128746033,"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/T10111","display_name":"Remote Sensing in Agriculture","score":0.9954000115394592,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13890","display_name":"Remote Sensing and Land Use","score":0.9803000092506409,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.9692364931106567},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7424331903457642},{"id":"https://openalex.org/keywords/data-processing","display_name":"Data processing","score":0.5650718808174133},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.519860565662384},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5041924715042114},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.4731862545013428},{"id":"https://openalex.org/keywords/volume","display_name":"Volume (thermodynamics)","score":0.45985111594200134},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.454860657453537},{"id":"https://openalex.org/keywords/precision-agriculture","display_name":"Precision agriculture","score":0.4398476779460907},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.3666703701019287},{"id":"https://openalex.org/keywords/agriculture","display_name":"Agriculture","score":0.22237738966941833},{"id":"https://openalex.org/keywords/systems-engineering","display_name":"Systems engineering","score":0.1518348753452301},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11983850598335266},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.10604244470596313},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.05828970670700073}],"concepts":[{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.9692364931106567},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7424331903457642},{"id":"https://openalex.org/C138827492","wikidata":"https://www.wikidata.org/wiki/Q6661985","display_name":"Data processing","level":2,"score":0.5650718808174133},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.519860565662384},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5041924715042114},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.4731862545013428},{"id":"https://openalex.org/C20556612","wikidata":"https://www.wikidata.org/wiki/Q4469374","display_name":"Volume (thermodynamics)","level":2,"score":0.45985111594200134},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.454860657453537},{"id":"https://openalex.org/C120217122","wikidata":"https://www.wikidata.org/wiki/Q740083","display_name":"Precision agriculture","level":3,"score":0.4398476779460907},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.3666703701019287},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.22237738966941833},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.1518348753452301},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11983850598335266},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.10604244470596313},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.05828970670700073},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"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/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3220228.3220242","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3220228.3220242","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Conference on Geoinformatics and Data Analysis","raw_type":"proceedings-article"},{"id":"pmh:oai:repositorio.inesctec.pt:123456789/8093","is_oa":true,"landing_page_url":"http://repositorio.inesctec.pt/handle/123456789/8093","pdf_url":null,"source":{"id":"https://openalex.org/S4306402433","display_name":"Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)","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":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"conference object"}],"best_oa_location":{"id":"pmh:oai:repositorio.inesctec.pt:123456789/8093","is_oa":true,"landing_page_url":"http://repositorio.inesctec.pt/handle/123456789/8093","pdf_url":null,"source":{"id":"https://openalex.org/S4306402433","display_name":"Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)","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":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"conference object"},"sustainable_development_goals":[{"score":0.7400000095367432,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"}],"awards":[{"id":"https://openalex.org/G1167214205","display_name":null,"funder_award_id":"COMPETE","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G160550121","display_name":null,"funder_award_id":"-FEDER-","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G2631452109","display_name":null,"funder_award_id":"(ERDF)","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G3491971210","display_name":null,"funder_award_id":"COMPETE 2020","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G6603360721","display_name":null,"funder_award_id":"PORTUGAL 2020","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G7189183968","display_name":null,"funder_award_id":"NORTE-01-0145-FEDER-000038","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"}],"funders":[{"id":"https://openalex.org/F4320324421","display_name":"Ag\u00eancia Nacional de Inova\u00e7\u00e3o","ror":"https://ror.org/01mvsby80"},{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W360609063","https://openalex.org/W434447130","https://openalex.org/W1517109601","https://openalex.org/W1537249151","https://openalex.org/W1548082324","https://openalex.org/W1901129140","https://openalex.org/W1943992836","https://openalex.org/W1980237824","https://openalex.org/W2008847349","https://openalex.org/W2068150776","https://openalex.org/W2069928051","https://openalex.org/W2082880010","https://openalex.org/W2093679105","https://openalex.org/W2118996198","https://openalex.org/W2127919418","https://openalex.org/W2129361518","https://openalex.org/W2131697388","https://openalex.org/W2156710280","https://openalex.org/W2167594433","https://openalex.org/W2185489349","https://openalex.org/W2187760795","https://openalex.org/W2249384118","https://openalex.org/W2412588858","https://openalex.org/W2490548105","https://openalex.org/W2497517591","https://openalex.org/W2531894595","https://openalex.org/W2541317894","https://openalex.org/W2573524522","https://openalex.org/W2593397548","https://openalex.org/W2603834682","https://openalex.org/W2612427243","https://openalex.org/W2735134954","https://openalex.org/W2757734040","https://openalex.org/W2764034829","https://openalex.org/W2765366036","https://openalex.org/W2769205835","https://openalex.org/W2781809052","https://openalex.org/W2782522152","https://openalex.org/W2900032653","https://openalex.org/W2919115771","https://openalex.org/W3095928217","https://openalex.org/W3101640299","https://openalex.org/W3141571762","https://openalex.org/W3177200386","https://openalex.org/W4240485910","https://openalex.org/W4285719527","https://openalex.org/W6738852829"],"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/W4245858792","https://openalex.org/W3211006270","https://openalex.org/W2059191372","https://openalex.org/W2051282630","https://openalex.org/W2000725643"],"abstract_inverted_index":{"In":[0],"agricultural":[1,164],"applications":[2],"hyperspectral":[3,28,66,98,140,161],"imaging":[4],"is":[5,126],"used":[6,75],"in":[7,11,42,76,79,138,170,192],"cases":[8],"where":[9],"differences":[10],"spectral":[12],"reflectance":[13],"of":[14,24,55,65,91,113,123,131,134,188],"the":[15,21,63,121,129,132,139,172,186],"examined":[16],"objects":[17],"are":[18,46,100,151,183],"small.":[19],"However,":[20],"large":[22],"amount":[23],"data":[25,56,67,83,141,162,182],"generated":[26],"by":[27],"sensors":[29,99],"requires":[30],"advance":[31],"processing":[32],"methods.":[33],"Machine":[34],"learning":[35,136,158,190],"approaches":[36,137],"may":[37],"play":[38],"an":[39],"important":[40],"role":[41],"this":[43,124,176],"task.":[44],"They":[45],"known":[47],"for":[48,102,163,174],"decades,":[49],"but":[50],"they":[51],"need":[52],"high":[53,95,111],"volume":[54,112],"to":[57,108,127,160],"compute":[58],"accurate":[59],"results.":[60],"Until":[61],"recently,":[62],"availability":[64,84],"was":[68,73,88,169],"a":[69,110,144],"big":[70],"drawback.":[71],"It":[72],"first":[74],"satellites,":[77],"later":[78],"manned":[80],"aircrafts":[81],"and":[82,94],"from":[85],"those":[86],"platforms":[87],"limited":[89],"because":[90],"logistics":[92],"complexity":[93],"price.":[96],"Nowadays,":[97],"available":[101,155],"unmanned":[103],"aerial":[104],"vehicles,":[105],"which":[106],"enabled":[107],"reach":[109],"data,":[114],"thus":[115],"overcoming":[116],"these":[117],"issues.":[118],"This":[119,166],"way,":[120],"aim":[122],"paper":[125],"present":[128],"status":[130],"usage":[133],"machine":[135,157,189],"processing,":[142],"with":[143],"focus":[145],"on":[146],"agriculture":[147],"applications.":[148,165],"Nevertheless,":[149],"there":[150],"not":[152],"many":[153],"studies":[154],"applying":[156],"approach":[159],"apparent":[167],"limitation":[168],"fact":[171],"inspiration":[173],"making":[175],"survey.":[177],"Preliminary":[178],"results":[179],"using":[180],"UAV-based":[181],"presented,":[184],"showing":[185],"suitability":[187],"techniques":[191],"remote":[193],"sensed":[194],"data.":[195]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":3}],"updated_date":"2026-04-15T08:11:43.952461","created_date":"2025-10-10T00:00:00"}
