{"id":"https://openalex.org/W2781972939","doi":"https://doi.org/10.1080/13658816.2017.1406943","title":"Mapping spatiotemporal patterns of events using social media: a case study of influenza trends","display_name":"Mapping spatiotemporal patterns of events using social media: a case study of influenza trends","publication_year":2018,"publication_date":"2018-01-02","ids":{"openalex":"https://openalex.org/W2781972939","doi":"https://doi.org/10.1080/13658816.2017.1406943","mag":"2781972939"},"language":"en","primary_location":{"id":"doi:10.1080/13658816.2017.1406943","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2017.1406943","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-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/A5032656733","display_name":"Yizhao Gao","orcid":"https://orcid.org/0000-0002-4564-3646"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yizhao Gao","raw_affiliation_strings":[",","CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA","CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA","Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA"],"affiliations":[{"raw_affiliation_string":",","institution_ids":[]},{"raw_affiliation_string":"CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026042163","display_name":"Shaowen Wang","orcid":"https://orcid.org/0000-0001-5848-590X"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},{"id":"https://openalex.org/I4210135837","display_name":"National Center for Supercomputing Applications","ror":"https://ror.org/03r10zj06","country_code":"US","type":"facility","lineage":["https://openalex.org/I157725225","https://openalex.org/I4210135837"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Shaowen Wang","raw_affiliation_strings":[",","National Center for Supercomputing Applications, University of Illinois, Urbana, IL, USA","Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA","Department of Urban and Regional Planning, University of Illinois, Urbana, IL, USA","CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA","School of Information Sciences, University of Illinois, Champaign, IL, USA","CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA"],"affiliations":[{"raw_affiliation_string":",","institution_ids":[]},{"raw_affiliation_string":"National Center for Supercomputing Applications, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I4210135837","https://openalex.org/I157725225"]},{"raw_affiliation_string":"Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"Department of Urban and Regional Planning, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"School of Information Sciences, University of Illinois, Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020460963","display_name":"Anand Padmanabhan","orcid":"https://orcid.org/0000-0001-7473-921X"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]},{"id":"https://openalex.org/I4210135837","display_name":"National Center for Supercomputing Applications","ror":"https://ror.org/03r10zj06","country_code":"US","type":"facility","lineage":["https://openalex.org/I157725225","https://openalex.org/I4210135837"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Anand Padmanabhan","raw_affiliation_strings":[",","National Center for Supercomputing Applications, University of Illinois, Urbana, IL, USA","CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA","Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA","CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA"],"affiliations":[{"raw_affiliation_string":",","institution_ids":[]},{"raw_affiliation_string":"National Center for Supercomputing Applications, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I4210135837","https://openalex.org/I157725225"]},{"raw_affiliation_string":"CyberGIS Center for Advanced Digital and Spatial Studies, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"Department of Geography and Geographic Information Science, University of Illinois, Urbana, IL, USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"CyberInfrastructure and Geospatial Information Laboratory, University of Illinois, Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017353043","display_name":"Junjun Yin","orcid":"https://orcid.org/0000-0002-4196-2439"},"institutions":[{"id":"https://openalex.org/I130769515","display_name":"Pennsylvania State University","ror":"https://ror.org/04p491231","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Junjun Yin","raw_affiliation_strings":[",","Social Science Research Institute, Pennsylvania State University, University Park, PA, USA"],"affiliations":[{"raw_affiliation_string":",","institution_ids":[]},{"raw_affiliation_string":"Social Science Research Institute, Pennsylvania State University, University Park, PA, USA","institution_ids":["https://openalex.org/I130769515"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083950779","display_name":"Guofeng Cao","orcid":"https://orcid.org/0000-0003-4827-1558"},"institutions":[{"id":"https://openalex.org/I12315562","display_name":"Texas Tech University","ror":"https://ror.org/0405mnx93","country_code":"US","type":"education","lineage":["https://openalex.org/I12315562"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Guofeng Cao","raw_affiliation_strings":[",","Department of Geosciences, Texas Tech University, Lubbock, TX, USA"],"affiliations":[{"raw_affiliation_string":",","institution_ids":[]},{"raw_affiliation_string":"Department of Geosciences, Texas Tech University, Lubbock, TX, USA","institution_ids":["https://openalex.org/I12315562"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5026042163"],"corresponding_institution_ids":["https://openalex.org/I157725225","https://openalex.org/I4210135837"],"apc_list":null,"apc_paid":null,"fwci":5.5096,"has_fulltext":false,"cited_by_count":54,"citation_normalized_percentile":{"value":0.9649797,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"32","issue":"3","first_page":"425","last_page":"449"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11819","display_name":"Data-Driven Disease Surveillance","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11819","display_name":"Data-Driven Disease Surveillance","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9962000250816345,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9735000133514404,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/social-media","display_name":"Social media","score":0.764247715473175},{"id":"https://openalex.org/keywords/event","display_name":"Event (particle physics)","score":0.6911263465881348},{"id":"https://openalex.org/keywords/popularity","display_name":"Popularity","score":0.6504178047180176},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.5256710648536682},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5070405006408691},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.4929788112640381},{"id":"https://openalex.org/keywords/kernel-density-estimation","display_name":"Kernel density estimation","score":0.47119140625},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.4487360119819641},{"id":"https://openalex.org/keywords/ground-truth","display_name":"Ground truth","score":0.4415549635887146},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4125412404537201},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.371563196182251},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2370113730430603},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.16047200560569763},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12195530533790588},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.09456998109817505}],"concepts":[{"id":"https://openalex.org/C518677369","wikidata":"https://www.wikidata.org/wiki/Q202833","display_name":"Social media","level":2,"score":0.764247715473175},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.6911263465881348},{"id":"https://openalex.org/C2780586970","wikidata":"https://www.wikidata.org/wiki/Q1357284","display_name":"Popularity","level":2,"score":0.6504178047180176},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.5256710648536682},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5070405006408691},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.4929788112640381},{"id":"https://openalex.org/C71134354","wikidata":"https://www.wikidata.org/wiki/Q458825","display_name":"Kernel density estimation","level":3,"score":0.47119140625},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.4487360119819641},{"id":"https://openalex.org/C146849305","wikidata":"https://www.wikidata.org/wiki/Q370766","display_name":"Ground truth","level":2,"score":0.4415549635887146},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4125412404537201},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.371563196182251},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2370113730430603},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.16047200560569763},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12195530533790588},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.09456998109817505},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","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":1,"locations":[{"id":"doi:10.1080/13658816.2017.1406943","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2017.1406943","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/13","score":0.6899999976158142,"display_name":"Climate action"}],"awards":[{"id":"https://openalex.org/G8931240783","display_name":null,"funder_award_id":"1047916","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320332162","display_name":"Centers for Disease Control and Prevention","ror":"https://ror.org/042twtr12"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":69,"referenced_works":["https://openalex.org/W77567593","https://openalex.org/W172571948","https://openalex.org/W1508967748","https://openalex.org/W1528377600","https://openalex.org/W1554540371","https://openalex.org/W1590495275","https://openalex.org/W1684832230","https://openalex.org/W1777095367","https://openalex.org/W1976323204","https://openalex.org/W1979941595","https://openalex.org/W1986050033","https://openalex.org/W1987269351","https://openalex.org/W1990494293","https://openalex.org/W1992399362","https://openalex.org/W1999318832","https://openalex.org/W2009662901","https://openalex.org/W2010273307","https://openalex.org/W2015186536","https://openalex.org/W2015913947","https://openalex.org/W2015987697","https://openalex.org/W2022951137","https://openalex.org/W2031908584","https://openalex.org/W2042831537","https://openalex.org/W2048444585","https://openalex.org/W2050133517","https://openalex.org/W2051974104","https://openalex.org/W2057882844","https://openalex.org/W2058759764","https://openalex.org/W2072787293","https://openalex.org/W2073072860","https://openalex.org/W2077407954","https://openalex.org/W2078376456","https://openalex.org/W2078403100","https://openalex.org/W2080549699","https://openalex.org/W2088755229","https://openalex.org/W2093717796","https://openalex.org/W2094083682","https://openalex.org/W2107147570","https://openalex.org/W2109734180","https://openalex.org/W2116265632","https://openalex.org/W2117239687","https://openalex.org/W2118480788","https://openalex.org/W2121001699","https://openalex.org/W2124499489","https://openalex.org/W2124650320","https://openalex.org/W2126675855","https://openalex.org/W2129905273","https://openalex.org/W2136840027","https://openalex.org/W2141701578","https://openalex.org/W2147194983","https://openalex.org/W2151508424","https://openalex.org/W2164487256","https://openalex.org/W2166504101","https://openalex.org/W2167978925","https://openalex.org/W2169523845","https://openalex.org/W2171468534","https://openalex.org/W2174120677","https://openalex.org/W2535531394","https://openalex.org/W2963032487","https://openalex.org/W3022441826","https://openalex.org/W3121587504","https://openalex.org/W4233014035","https://openalex.org/W4234404834","https://openalex.org/W4237822572","https://openalex.org/W4240410676","https://openalex.org/W4247387493","https://openalex.org/W4249999102","https://openalex.org/W4253554627","https://openalex.org/W4388770939"],"related_works":["https://openalex.org/W2368605798","https://openalex.org/W2518037665","https://openalex.org/W2348524959","https://openalex.org/W2477036161","https://openalex.org/W2368049389","https://openalex.org/W2384861574","https://openalex.org/W2170801710","https://openalex.org/W2952704802","https://openalex.org/W4294565801","https://openalex.org/W2142306706"],"abstract_inverted_index":{"Tracking":[0],"spatial":[1,90],"and":[2,10,18,37,49,70,95,99,145,159],"temporal":[3],"trends":[4],"of":[5,58,73,86,92,114,165,196],"events":[6,45,115],"(e.g.":[7],"disease":[8],"outbreaks":[9],"natural":[11],"disasters)":[12],"is":[13],"important":[14],"for":[15,128],"situation":[16],"awareness":[17],"timely":[19],"response.":[20],"Social":[21],"media,":[22],"with":[23,172],"increasing":[24],"popularity,":[25],"provide":[26],"an":[27,74],"effective":[28],"way":[29],"to":[30,42,109,139,168,182],"collect":[31],"event-related":[32],"data":[33,101],"from":[34,76],"massive":[35],"populations":[36],"thus":[38],"a":[39,106],"significant":[40],"opportunity":[41],"dynamically":[43],"monitor":[44],"as":[46,61],"they":[47],"emerge":[48],"evolve.":[50],"While":[51],"existing":[52],"research":[53],"has":[54,179],"demonstrated":[55,198],"the":[56,83,89,100,188],"value":[57],"social":[59,77,96,130,136],"media":[60,78,97,131,137],"sensors":[62],"in":[63,187],"event":[64,75,93,143,147,156,166,175],"detection,":[65],"estimating":[66],"potential":[67,111],"time":[68],"spans":[69],"influenced":[71],"areas":[72],"remains":[79],"challenging.":[80],"Challenges":[81],"include":[82],"unstable":[84],"volumes":[85],"available":[87,212],"data,":[88,98],"heterogeneity":[91],"activities":[94],"sparsity.":[102],"This":[103,153],"paper":[104],"describes":[105],"systematic":[107],"approach":[108,154,178,201],"detecting":[110],"spatiotemporal":[112,163],"patterns":[113,186],"by":[116,211],"resolving":[117],"these":[118],"challenges":[119],"through":[120],"several":[121],"interrelated":[122],"strategies:":[123],"using":[124,191],"kernel":[125],"density":[126],"estimation":[127],"smoothed":[129],"intensity":[132],"surfaces;":[133],"utilizing":[134],"event-unrelated":[135],"posts":[138],"help":[140],"map":[141],"relative":[142],"prevalence;":[144],"normalizing":[146],"indicators":[148],"based":[149],"on":[150],"historical":[151],"fluctuation.":[152],"generates":[155],"indicator":[157],"maps":[158,161,206],"significance":[160],"explaining":[162],"variations":[164],"prevalence":[167],"identify":[169],"space-time":[170],"regions":[171],"potentially":[173],"abnormal":[174],"activities.":[176],"The":[177],"been":[180],"applied":[181],"detect":[183],"influenza":[184,204],"activity":[185,205],"conterminous":[189],"US":[190],"Twitter":[192],"data.":[193,215],"A":[194],"set":[195],"experiments":[197],"that":[199,207],"our":[200],"produces":[202],"high-resolution":[203],"could":[208],"be":[209],"explained":[210],"ground":[213],"truth":[214]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":10},{"year":2021,"cited_by_count":13},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":10},{"year":2018,"cited_by_count":4}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}