{"id":"https://openalex.org/W3139257048","doi":"https://doi.org/10.1109/bigdata50022.2020.9378218","title":"The Impact of COVID-19 on Flight Networks","display_name":"The Impact of COVID-19 on Flight Networks","publication_year":2020,"publication_date":"2020-12-10","ids":{"openalex":"https://openalex.org/W3139257048","doi":"https://doi.org/10.1109/bigdata50022.2020.9378218","mag":"3139257048"},"language":"en","primary_location":{"id":"doi:10.1109/bigdata50022.2020.9378218","is_oa":false,"landing_page_url":"https://doi.org/10.1109/bigdata50022.2020.9378218","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE International Conference on Big Data (Big Data)","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://upcommons.upc.edu/bitstream/2117/345264/5/09378218.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5011886931","display_name":"Toyotaro Suzumura","orcid":"https://orcid.org/0000-0001-6412-8386"},"institutions":[{"id":"https://openalex.org/I1341412227","display_name":"IBM (United States)","ror":"https://ror.org/05hh8d621","country_code":"US","type":"company","lineage":["https://openalex.org/I1341412227"]},{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES","US"],"is_corresponding":false,"raw_author_name":"Toyotaro Suzumura","raw_affiliation_strings":["IBM T.J. Watson Research Center MIT-IBM Watson AI Lab, Barcelona Supercomputing Center, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IBM T.J. Watson Research Center MIT-IBM Watson AI Lab, Barcelona Supercomputing Center, New York, USA","institution_ids":["https://openalex.org/I9617848","https://openalex.org/I1341412227"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103213189","display_name":"Hiroki Kanezashi","orcid":"https://orcid.org/0000-0002-8329-6235"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroki Kanezashi","raw_affiliation_strings":["Tokyo Institute of Technology, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Tokyo, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031281287","display_name":"Mishal Dholakia","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mishal Dholakia","raw_affiliation_strings":["IBM Research, New York, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IBM Research, New York, USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110752093","display_name":"Euma Ishii","orcid":null},"institutions":[{"id":"https://openalex.org/I125602781","display_name":"Tokyo Medical and Dental University","ror":"https://ror.org/051k3eh31","country_code":"JP","type":"education","lineage":["https://openalex.org/I125602781"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Euma Ishii","raw_affiliation_strings":["Tokyo Medical and Dental University, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Medical and Dental University, Tokyo, Japan","institution_ids":["https://openalex.org/I125602781"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028049729","display_name":"Sergio \u00c1lvarez-Napagao","orcid":"https://orcid.org/0000-0001-9946-9703"},"institutions":[{"id":"https://openalex.org/I2799803557","display_name":"Barcelona Supercomputing Center","ror":"https://ror.org/05sd8tv96","country_code":"ES","type":"facility","lineage":["https://openalex.org/I2799803557","https://openalex.org/I9617848"]},{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Sergio Alvarez Napagao","raw_affiliation_strings":["Barcelona Supercomputing Center, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Barcelona Supercomputing Center, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848","https://openalex.org/I2799803557"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026711407","display_name":"Raquel P\u00e9rez-Arnal","orcid":null},"institutions":[{"id":"https://openalex.org/I2799803557","display_name":"Barcelona Supercomputing Center","ror":"https://ror.org/05sd8tv96","country_code":"ES","type":"facility","lineage":["https://openalex.org/I2799803557","https://openalex.org/I9617848"]},{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Raquel Perez-Arnal","raw_affiliation_strings":["Barcelona Supercomputing Center, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Barcelona Supercomputing Center, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848","https://openalex.org/I2799803557"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010831226","display_name":"Dario Garc\u00eda-Gasulla","orcid":"https://orcid.org/0000-0001-6732-5641"},"institutions":[{"id":"https://openalex.org/I2799803557","display_name":"Barcelona Supercomputing Center","ror":"https://ror.org/05sd8tv96","country_code":"ES","type":"facility","lineage":["https://openalex.org/I2799803557","https://openalex.org/I9617848"]},{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Dario Garcia-Gasulla","raw_affiliation_strings":["Barcelona Supercomputing Center, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Barcelona Supercomputing Center, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848","https://openalex.org/I2799803557"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":32,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2443","last_page":"2452"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10410","display_name":"COVID-19 epidemiological studies","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10410","display_name":"COVID-19 epidemiological studies","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11599","display_name":"Aviation Industry Analysis and Trends","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2000","display_name":"General Economics, Econometrics and Finance"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11711","display_name":"COVID-19 Pandemic Impacts","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/coronavirus-disease-2019","display_name":"Coronavirus disease 2019 (COVID-19)","score":0.7370267510414124},{"id":"https://openalex.org/keywords/tourism","display_name":"Tourism","score":0.6732686758041382},{"id":"https://openalex.org/keywords/unemployment","display_name":"Unemployment","score":0.5926260948181152},{"id":"https://openalex.org/keywords/air-travel","display_name":"Air travel","score":0.5244684219360352},{"id":"https://openalex.org/keywords/2019-20-coronavirus-outbreak","display_name":"2019-20 coronavirus outbreak","score":0.4446311891078949},{"id":"https://openalex.org/keywords/severe-acute-respiratory-syndrome-coronavirus-2","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","score":0.44052261114120483},{"id":"https://openalex.org/keywords/demographic-economics","display_name":"Demographic economics","score":0.4304814338684082},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.4023914337158203},{"id":"https://openalex.org/keywords/aviation","display_name":"Aviation","score":0.3497064709663391},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.32570192217826843},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.30726343393325806},{"id":"https://openalex.org/keywords/economic-growth","display_name":"Economic growth","score":0.199832946062088},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.19337323307991028},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.11556488275527954}],"concepts":[{"id":"https://openalex.org/C3008058167","wikidata":"https://www.wikidata.org/wiki/Q84263196","display_name":"Coronavirus disease 2019 (COVID-19)","level":4,"score":0.7370267510414124},{"id":"https://openalex.org/C18918823","wikidata":"https://www.wikidata.org/wiki/Q49389","display_name":"Tourism","level":2,"score":0.6732686758041382},{"id":"https://openalex.org/C2778126366","wikidata":"https://www.wikidata.org/wiki/Q41171","display_name":"Unemployment","level":2,"score":0.5926260948181152},{"id":"https://openalex.org/C2985550459","wikidata":"https://www.wikidata.org/wiki/Q376880","display_name":"Air travel","level":3,"score":0.5244684219360352},{"id":"https://openalex.org/C3006700255","wikidata":"https://www.wikidata.org/wiki/Q81068910","display_name":"2019-20 coronavirus outbreak","level":3,"score":0.4446311891078949},{"id":"https://openalex.org/C3007834351","wikidata":"https://www.wikidata.org/wiki/Q82069695","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","level":5,"score":0.44052261114120483},{"id":"https://openalex.org/C4249254","wikidata":"https://www.wikidata.org/wiki/Q3044431","display_name":"Demographic economics","level":1,"score":0.4304814338684082},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.4023914337158203},{"id":"https://openalex.org/C74448152","wikidata":"https://www.wikidata.org/wiki/Q765633","display_name":"Aviation","level":2,"score":0.3497064709663391},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.32570192217826843},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.30726343393325806},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.199832946062088},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.19337323307991028},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.11556488275527954},{"id":"https://openalex.org/C116675565","wikidata":"https://www.wikidata.org/wiki/Q3241045","display_name":"Outbreak","level":2,"score":0.0},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.0},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C524204448","wikidata":"https://www.wikidata.org/wiki/Q788926","display_name":"Infectious disease (medical specialty)","level":3,"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/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/bigdata50022.2020.9378218","is_oa":false,"landing_page_url":"https://doi.org/10.1109/bigdata50022.2020.9378218","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE International Conference on Big Data (Big Data)","raw_type":"proceedings-article"},{"id":"pmh:oai:upcommons.upc.edu:2117/345264","is_oa":true,"landing_page_url":"http://hdl.handle.net/2117/345264","pdf_url":"https://upcommons.upc.edu/bitstream/2117/345264/5/09378218.pdf","source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":"public-domain","license_id":"https://openalex.org/licenses/public-domain","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference report"}],"best_oa_location":{"id":"pmh:oai:upcommons.upc.edu:2117/345264","is_oa":true,"landing_page_url":"http://hdl.handle.net/2117/345264","pdf_url":"https://upcommons.upc.edu/bitstream/2117/345264/5/09378218.pdf","source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":"public-domain","license_id":"https://openalex.org/licenses/public-domain","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference report"},"sustainable_development_goals":[{"score":0.75,"id":"https://metadata.un.org/sdg/8","display_name":"Decent work and economic growth"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3139257048.pdf","grobid_xml":"https://content.openalex.org/works/W3139257048.grobid-xml"},"referenced_works_count":8,"referenced_works":["https://openalex.org/W2133631887","https://openalex.org/W2951878836","https://openalex.org/W2952045272","https://openalex.org/W3013115416","https://openalex.org/W3023369046","https://openalex.org/W3027476857","https://openalex.org/W3029878358","https://openalex.org/W4243683928"],"related_works":["https://openalex.org/W3127156785","https://openalex.org/W3009669391","https://openalex.org/W4200329650","https://openalex.org/W4205215807","https://openalex.org/W3005417802","https://openalex.org/W4205754011","https://openalex.org/W4226296940","https://openalex.org/W3028835529","https://openalex.org/W3036314732","https://openalex.org/W3134376730"],"abstract_inverted_index":{"As":[0],"COVID-19":[1,132],"transmissions":[2],"spread":[3],"worldwide,":[4],"governments":[5],"have":[6,18],"announced":[7],"and":[8,35,57,74,92,109,154],"enforced":[9],"travel":[10,112,143],"restrictions":[11,17],"to":[12,53,167],"prevent":[13],"further":[14],"infections.":[15],"Such":[16],"a":[19,44,117],"direct":[20],"effect":[21],"on":[22],"the":[23,41,49,61,75,85,98,106,121,134,146,152,162],"volume":[24],"of":[25,87,101,142],"international":[26],"flights":[27,89],"among":[28],"these":[29],"countries,":[30],"resulting":[31],"in":[32,43,80,103,120,151,161],"extensive":[33],"social":[34],"economic":[36],"costs.":[37],"To":[38],"better":[39],"understand":[40],"situation":[42],"quantitative":[45],"manner,":[46],"we":[47,64],"analyzed":[48],"OpenSky":[50],"Network":[51],"data":[52],"clarify":[54],"flight":[55,58,68,123],"patterns":[56],"densities":[59],"around":[60],"world.":[62],"Then":[63],"observed":[65,116],"relationships":[66],"between":[67],"numbers":[69],"with":[70],"new":[71,131],"infection":[72],"cases":[73],"economy":[76],"(the":[77],"unemployment":[78],"rate)":[79],"Barcelona.":[81],"We":[82,114],"found":[83],"that":[84],"number":[86],"daily":[88],"gradually":[90],"decreased":[91,126],"then":[93],"suddenly":[94],"dropped":[95],"64%":[96],"during":[97,127],"second":[99],"half":[100],"March":[102],"2020":[104],"after":[105],"United":[107,135],"States":[108,136],"Europe":[110],"enacted":[111],"restrictions.":[113,144],"also":[115],"51%":[118],"decrease":[119],"global":[122],"network":[124],"density":[125],"this":[128],"period.":[129],"Regarding":[130],"cases,":[133],"had":[137],"an":[138],"unexpected":[139],"surge":[140],"regardless":[141],"Finally,":[145],"layoffs":[147],"for":[148],"temporary":[149],"workers":[150],"tourism":[153],"airplane":[155],"business":[156],"increased":[157],"by":[158],"4.3":[159],"fold":[160],"weeks":[163],"following":[164],"Spain's":[165],"decision":[166],"close":[168],"its":[169],"borders.":[170]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":12}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
