{"id":"https://openalex.org/W2993693427","doi":"https://doi.org/10.3390/rs11242938","title":"A Small Ship Target Detection Method Based on Polarimetric SAR","display_name":"A Small Ship Target Detection Method Based on Polarimetric SAR","publication_year":2019,"publication_date":"2019-12-08","ids":{"openalex":"https://openalex.org/W2993693427","doi":"https://doi.org/10.3390/rs11242938","mag":"2993693427"},"language":"en","primary_location":{"id":"doi:10.3390/rs11242938","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11242938","pdf_url":"https://www.mdpi.com/2072-4292/11/24/2938/pdf?version=1575786871","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/11/24/2938/pdf?version=1575786871","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082534449","display_name":"Genwang Liu","orcid":"https://orcid.org/0000-0003-2238-5020"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]},{"id":"https://openalex.org/I4210114556","display_name":"First Institute of Oceanography","ror":"https://ror.org/01y34t753","country_code":"CN","type":"facility","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210114556","https://openalex.org/I4210127390"]},{"id":"https://openalex.org/I211433327","display_name":"Ministry of Natural Resources","ror":"https://ror.org/02kxqx159","country_code":"CN","type":"funder","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210127390"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Genwang Liu","raw_affiliation_strings":["First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China"],"affiliations":[{"raw_affiliation_string":"First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I4210114556","https://openalex.org/I211433327"]},{"raw_affiliation_string":"Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I59028903","https://openalex.org/I211433327"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100430860","display_name":"Xi Zhang","orcid":"https://orcid.org/0000-0002-9180-1182"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]},{"id":"https://openalex.org/I4210114556","display_name":"First Institute of Oceanography","ror":"https://ror.org/01y34t753","country_code":"CN","type":"facility","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210114556","https://openalex.org/I4210127390"]},{"id":"https://openalex.org/I211433327","display_name":"Ministry of Natural Resources","ror":"https://ror.org/02kxqx159","country_code":"CN","type":"funder","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210127390"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xi Zhang","raw_affiliation_strings":["First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China"],"affiliations":[{"raw_affiliation_string":"First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I4210114556","https://openalex.org/I211433327"]},{"raw_affiliation_string":"Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I59028903","https://openalex.org/I211433327"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101508918","display_name":"Junmin Meng","orcid":"https://orcid.org/0000-0003-3358-8245"},"institutions":[{"id":"https://openalex.org/I59028903","display_name":"Ocean University of China","ror":"https://ror.org/04rdtx186","country_code":"CN","type":"education","lineage":["https://openalex.org/I59028903"]},{"id":"https://openalex.org/I4210114556","display_name":"First Institute of Oceanography","ror":"https://ror.org/01y34t753","country_code":"CN","type":"facility","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210114556","https://openalex.org/I4210127390"]},{"id":"https://openalex.org/I211433327","display_name":"Ministry of Natural Resources","ror":"https://ror.org/02kxqx159","country_code":"CN","type":"funder","lineage":["https://openalex.org/I211433327","https://openalex.org/I4210127390"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junmin Meng","raw_affiliation_strings":["First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China"],"affiliations":[{"raw_affiliation_string":"First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I4210114556","https://openalex.org/I211433327"]},{"raw_affiliation_string":"Ocean Telemetry Technology Innovation Center, Ministry of Natural Resources, Qingdao 266061, China","institution_ids":["https://openalex.org/I59028903","https://openalex.org/I211433327"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5082534449"],"corresponding_institution_ids":["https://openalex.org/I211433327","https://openalex.org/I4210114556","https://openalex.org/I59028903"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":44.1109,"has_fulltext":true,"cited_by_count":40,"citation_normalized_percentile":{"value":0.99570144,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"11","issue":"24","first_page":"2938","last_page":"2938"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"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/T12624","display_name":"Maritime and Coastal Archaeology","score":0.9728999733924866,"subfield":{"id":"https://openalex.org/subfields/1204","display_name":"Archeology"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12316","display_name":"Oil Spill Detection and Mitigation","score":0.9715999960899353,"subfield":{"id":"https://openalex.org/subfields/2310","display_name":"Pollution"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.6734708547592163},{"id":"https://openalex.org/keywords/constant-false-alarm-rate","display_name":"Constant false alarm rate","score":0.6606155633926392},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.6557363271713257},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.632135808467865},{"id":"https://openalex.org/keywords/clutter","display_name":"Clutter","score":0.6077022552490234},{"id":"https://openalex.org/keywords/sliding-window-protocol","display_name":"Sliding window protocol","score":0.5451599359512329},{"id":"https://openalex.org/keywords/polarimetry","display_name":"Polarimetry","score":0.5088103413581848},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5046461820602417},{"id":"https://openalex.org/keywords/scattering","display_name":"Scattering","score":0.504517674446106},{"id":"https://openalex.org/keywords/polarization","display_name":"Polarization (electrochemistry)","score":0.4825979471206665},{"id":"https://openalex.org/keywords/false-alarm","display_name":"False alarm","score":0.41385719180107117},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.38933247327804565},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.37686294317245483},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.34967631101608276},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.24681776762008667},{"id":"https://openalex.org/keywords/window","display_name":"Window (computing)","score":0.24337929487228394},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.21859949827194214},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12337109446525574},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11025714874267578}],"concepts":[{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.6734708547592163},{"id":"https://openalex.org/C77052588","wikidata":"https://www.wikidata.org/wiki/Q644307","display_name":"Constant false alarm rate","level":2,"score":0.6606155633926392},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.6557363271713257},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.632135808467865},{"id":"https://openalex.org/C132094186","wikidata":"https://www.wikidata.org/wiki/Q641585","display_name":"Clutter","level":3,"score":0.6077022552490234},{"id":"https://openalex.org/C102392041","wikidata":"https://www.wikidata.org/wiki/Q592860","display_name":"Sliding window protocol","level":3,"score":0.5451599359512329},{"id":"https://openalex.org/C28493345","wikidata":"https://www.wikidata.org/wiki/Q899381","display_name":"Polarimetry","level":3,"score":0.5088103413581848},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5046461820602417},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.504517674446106},{"id":"https://openalex.org/C205049153","wikidata":"https://www.wikidata.org/wiki/Q2698605","display_name":"Polarization (electrochemistry)","level":2,"score":0.4825979471206665},{"id":"https://openalex.org/C2776836416","wikidata":"https://www.wikidata.org/wiki/Q1364844","display_name":"False alarm","level":2,"score":0.41385719180107117},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.38933247327804565},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.37686294317245483},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.34967631101608276},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.24681776762008667},{"id":"https://openalex.org/C2778751112","wikidata":"https://www.wikidata.org/wiki/Q835016","display_name":"Window (computing)","level":2,"score":0.24337929487228394},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.21859949827194214},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12337109446525574},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11025714874267578},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/rs11242938","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11242938","pdf_url":"https://www.mdpi.com/2072-4292/11/24/2938/pdf?version=1575786871","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:mdpi.com:/2072-4292/11/24/2938/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs11242938","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing; Volume 11; Issue 24; Pages: 2938","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs11242938","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11242938","pdf_url":"https://www.mdpi.com/2072-4292/11/24/2938/pdf?version=1575786871","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/14","display_name":"Life below water","score":0.8199999928474426}],"awards":[{"id":"https://openalex.org/G1104790288","display_name":null,"funder_award_id":"RADARSAT-2","funder_id":"https://openalex.org/F4320334436","funder_display_name":"Canadian Space Agency"},{"id":"https://openalex.org/G2047570096","display_name":null,"funder_award_id":"61971455","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7803122253","display_name":null,"funder_award_id":"2017YFC1405201","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320334436","display_name":"Canadian Space Agency","ror":"https://ror.org/03a1gte98"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2993693427.pdf","grobid_xml":"https://content.openalex.org/works/W2993693427.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W1964313985","https://openalex.org/W1968632379","https://openalex.org/W1973133700","https://openalex.org/W1984513690","https://openalex.org/W1991528401","https://openalex.org/W2009911920","https://openalex.org/W2016737927","https://openalex.org/W2016995863","https://openalex.org/W2026512191","https://openalex.org/W2026930882","https://openalex.org/W2031294548","https://openalex.org/W2044907338","https://openalex.org/W2049197221","https://openalex.org/W2049439521","https://openalex.org/W2068746745","https://openalex.org/W2089588733","https://openalex.org/W2090664287","https://openalex.org/W2090991102","https://openalex.org/W2100287893","https://openalex.org/W2110791451","https://openalex.org/W2116998598","https://openalex.org/W2133410947","https://openalex.org/W2133989913","https://openalex.org/W2157817668","https://openalex.org/W2162778606","https://openalex.org/W2168055397","https://openalex.org/W2176806231","https://openalex.org/W2296098264","https://openalex.org/W2411546627","https://openalex.org/W2519627623","https://openalex.org/W2617137513","https://openalex.org/W2619158701","https://openalex.org/W2625874208","https://openalex.org/W2747165560","https://openalex.org/W2892719431","https://openalex.org/W2912855045","https://openalex.org/W6628852233","https://openalex.org/W6677840927","https://openalex.org/W6772281235"],"related_works":["https://openalex.org/W2388326001","https://openalex.org/W3011102797","https://openalex.org/W2351401443","https://openalex.org/W2115015615","https://openalex.org/W4320921117","https://openalex.org/W1968850503","https://openalex.org/W1649651896","https://openalex.org/W2116961228","https://openalex.org/W1952514008","https://openalex.org/W3173283069"],"abstract_inverted_index":{"The":[0,98],"detection":[1,50,245,249,285,332],"of":[2,36,74,100,127,144,153,182,191,203,210,219,227,256,267,309,325],"small":[3,19,34,208,238,254,307,336],"fishing":[4],"ships":[5,20,130,181,255],"is":[6,15,68,162,176,193,197,221,279],"very":[7,33],"important":[8],"for":[9,129,180,251,335],"maritime":[10,48],"fishery":[11],"supervision.":[12],"However,":[13],"it":[14,115],"difficult":[16],"to":[17,27,52,94,105,137,242,281],"detect":[18],"using":[21,150],"synthetic":[22,39],"aperture":[23,40],"radar":[24,41],"(SAR),":[25],"due":[26,51],"the":[28,59,72,85,101,108,121,158,166,188,204,216,233,248,273,288,298,303,315,323],"weak":[29],"target":[30,55],"scattering":[31,56,76],"and":[32,80,112,171,247,253,262,292],"number":[35,324],"pixels.":[37],"Polarimetric":[38],"(PolSAR)":[42],"has":[43],"been":[44],"widely":[45],"used":[46,241],"in":[47,148,276,302,318],"ship":[49,64,79,96,244,289],"its":[53],"abundant":[54],"information.":[57],"In":[58,164],"present":[60],"paper,":[61],"a":[62,283],"new":[63],"detector,":[65],"named":[66],"\u039bM,":[67],"developed":[69],"based":[70],"on":[71,230],"analysis":[73],"polarization":[75,174],"differences":[77],"between":[78,169],"sea,":[81],"then":[82,157],"combined":[83],"with":[84,131],"two-parameter":[86],"constant":[87],"false":[88,294],"alarm":[89],"rate":[90],"method":[91,274,316],"(TP-CFAR)":[92],"algorithm":[93],"conduct":[95],"detection.":[97],"goals":[99],"detector":[102],"construction":[103],"are":[104,146,240,260],"fully":[106],"consider":[107],"ship\u2019s":[109],"depolarization":[110],"effect,":[111],"further":[113],"amplify":[114],"through":[116],"sliding":[117],"window":[118,160],"processing.":[119],"First,":[120],"signal-to-clutter":[122],"ratio":[123],"(SCR)":[124],"enhancement":[125],"performance":[126],"\u039bM":[128,170,192,220],"different":[132,142],"lengths":[133],"ranging":[134],"from":[135],"8":[136],"230":[138],"m":[139],"under":[140],"90":[141],"combinations":[143],"windows":[145],"analyzed":[147],"detail":[149],"three":[151],"set":[152],"RADARSAT-2":[154,234],"quad-polarization":[155],"data,":[156],"appropriate":[159],"size":[161],"determined.":[163],"addition,":[165],"SCR":[167],"enlargement":[168],"some":[172,257],"typical":[173],"features":[175],"compared.":[177],"Among":[178],"these,":[179],"length":[183,211,268,310],"greater":[184,200,269],"than":[185,201,213,225,270,312],"35":[186,271],"m,":[187,215,272,314],"average":[189,217],"contrast":[190,218],"33.7":[194],"dB,":[195],"which":[196],"20":[198],"dB":[199,223],"that":[202,226],"HV":[205,228],"channel.":[206],"For":[207,264,306],"vessels":[209,239,266,308],"less":[212,311],"16":[214,222,313],"higher":[224],"channel":[229],"average.":[231],"Finally,":[232],"data":[235],"including":[236],"nonmetallic":[237,337],"perform":[243],"tests,":[246],"ability":[250],"conventional":[252],"classic":[258],"algorithms":[259],"compared":[261],"analyzed.":[263],"large":[265],"proposed":[275,317],"this":[277,319],"paper":[278,320],"able":[280],"obtain":[282],"superior":[284,331],"result,":[286],"maintain":[287],"contour":[290],"well,":[291],"suppress":[293],"alarms":[295],"caused":[296],"by":[297],"cross":[299],"side":[300],"lobe":[301],"SAR":[304],"image.":[305],"can":[321],"reduce":[322],"missed":[326],"targets,":[327],"while":[328],"also":[329],"obtaining":[330],"results,":[333],"especially":[334],"vessels.":[338]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":5}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
