{"id":"https://openalex.org/W2789819752","doi":"https://doi.org/10.1016/j.trc.2018.01.015","title":"Missing data imputation for traffic flow speed using spatio-temporal cokriging","display_name":"Missing data imputation for traffic flow speed using spatio-temporal cokriging","publication_year":2018,"publication_date":"2018-02-04","ids":{"openalex":"https://openalex.org/W2789819752","doi":"https://doi.org/10.1016/j.trc.2018.01.015","mag":"2789819752"},"language":"en","primary_location":{"id":"doi:10.1016/j.trc.2018.01.015","doi":"https://doi.org/10.1016/j.trc.2018.01.015","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.trc.2018.01.015","pdf_url":null,"source":{"id":"https://openalex.org/S64511102","display_name":"Transportation Research Part C Emerging Technologies","issn_l":"0968-090X","issn":["0968-090X","1879-2359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a-star","anvur-class-a","anvur-scientific","cwts-core","dongbi-a","jufo-3","norway-1","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Transportation Research Part C: Emerging Technologies","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5043235738","display_name":"Bumjoon Bae","orcid":"https://orcid.org/0000-0001-9743-1453","observed_orcids":["https://orcid.org/0000-0001-9743-1453"]},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Bumjoon Bae","raw_affiliation_strings":["Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA"],"raw_orcid":"https://orcid.org/0000-0001-9743-1453","affiliations":[{"raw_affiliation_string":"Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA","institution_ids":["https://openalex.org/I75027704"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109934353","display_name":"Hyun Jun Kim","orcid":"https://orcid.org/0000-0002-5676-7556","observed_orcids":["https://orcid.org/0000-0002-5676-7556"]},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hyun Kim","raw_affiliation_strings":["Department of Geography, University of Tennessee, Knoxville, 1000 Phillip Fulmer Way, Knoxville, TN 37916, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Geography, University of Tennessee, Knoxville, 1000 Phillip Fulmer Way, Knoxville, TN 37916, USA","institution_ids":["https://openalex.org/I75027704"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055935499","display_name":"Hyeonsup Lim","orcid":"https://orcid.org/0000-0002-3936-0092","observed_orcids":["https://orcid.org/0000-0002-3936-0092"]},"institutions":[{"id":"https://openalex.org/I1289243028","display_name":"Oak Ridge National Laboratory","ror":"https://ror.org/01qz5mb56","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hyeonsup Lim","raw_affiliation_strings":["Center for Transportation Analysis, Oak Ridge National Laboratory, 2360 Cherahala Blvd, Knoxville, TN 37932, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Transportation Analysis, Oak Ridge National Laboratory, 2360 Cherahala Blvd, Knoxville, TN 37932, USA","institution_ids":["https://openalex.org/I1289243028"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Yuandong Liu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yuandong Liu","raw_affiliation_strings":["Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA","institution_ids":["https://openalex.org/I75027704"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014633686","display_name":"Lee D. Han","orcid":"https://orcid.org/0000-0002-1381-1254","observed_orcids":["https://orcid.org/0000-0002-1381-1254"]},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lee D. Han","raw_affiliation_strings":["Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, 851 Neyland Drive, Knoxville, TN 37996, USA","institution_ids":["https://openalex.org/I75027704"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112644316","display_name":"Phillip Bradley Freeze","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800669848","display_name":"Tennessee Department of Transportation","ror":"https://ror.org/03g8swq49","country_code":"US","type":"government","lineage":["https://openalex.org/I2800669848"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Phillip B. Freeze","raw_affiliation_strings":["Tennessee Department of Transportation, James K. Polk Building, 505 Deaderick Street, Suite 300, Nashville, TN 37243, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tennessee Department of Transportation, James K. Polk Building, 505 Deaderick Street, Suite 300, Nashville, TN 37243, USA","institution_ids":["https://openalex.org/I2800669848"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5043235738"],"corresponding_institution_ids":["https://openalex.org/I75027704"],"apc_list":{"value":4040,"currency":"USD","value_usd":4040},"apc_paid":null,"fwci":8.086,"has_fulltext":false,"cited_by_count":142,"citation_normalized_percentile":{"value":0.97452347,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":100},"biblio":{"volume":"88","issue":null,"first_page":"124","last_page":"139"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9839000105857849,"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"}},"topics":[{"id":"https://openalex.org/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9839000105857849,"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/T10524","display_name":"Traffic control and management","score":0.007799999788403511,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T11911","display_name":"Spatial and Panel Data Analysis","score":0.003599999938160181,"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/missing-data-imputation","display_name":"missing data imputation","score":0.9539999961853027},{"id":"https://openalex.org/keywords/traffic-speed","display_name":"traffic speed","score":0.8309999704360962},{"id":"https://openalex.org/keywords/spatio-temporal-kriging","display_name":"spatio-temporal kriging","score":0.7409999966621399},{"id":"https://openalex.org/keywords/multi-source-data","display_name":"multi-source data","score":0.7269999980926514},{"id":"https://openalex.org/keywords/missing-data-patterns","display_name":"missing data patterns","score":0.7099999785423279},{"id":"https://openalex.org/keywords/radar-detectors","display_name":"radar detectors","score":0.6240000128746033},{"id":"https://openalex.org/keywords/traffic-data-quality","display_name":"traffic data quality","score":0.3230000138282776}],"concepts":[{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.8827653527259827},{"id":"https://openalex.org/C58041806","wikidata":"https://www.wikidata.org/wiki/Q1660484","display_name":"Imputation (statistics)","level":3,"score":0.7541041374206543},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.6524298191070557},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6519047021865845},{"id":"https://openalex.org/C125112378","wikidata":"https://www.wikidata.org/wiki/Q176640","display_name":"Randomness","level":2,"score":0.5112378597259521},{"id":"https://openalex.org/C81692654","wikidata":"https://www.wikidata.org/wiki/Q225926","display_name":"Kriging","level":2,"score":0.4328203797340393},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3196328282356262},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18063947558403015},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.15107515454292297}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.trc.2018.01.015","doi":"https://doi.org/10.1016/j.trc.2018.01.015","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.trc.2018.01.015","pdf_url":null,"source":{"id":"https://openalex.org/S64511102","display_name":"Transportation Research Part C Emerging Technologies","issn_l":"0968-090X","issn":["0968-090X","1879-2359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-a-star","anvur-class-a","anvur-scientific","cwts-core","dongbi-a","jufo-3","norway-1","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Transportation Research Part C: Emerging Technologies","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","score":0.7207000255584717,"display_name":"Industry, innovation and infrastructure"},{"id":"https://metadata.un.org/sdg/11","score":0.5142999887466431,"display_name":"Sustainable cities and communities"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W612972800","https://openalex.org/W818399942","https://openalex.org/W1500944114","https://openalex.org/W1506602547","https://openalex.org/W1798398164","https://openalex.org/W1973475129","https://openalex.org/W1979646154","https://openalex.org/W1982501435","https://openalex.org/W1991483023","https://openalex.org/W1993410488","https://openalex.org/W1996251860","https://openalex.org/W2020641160","https://openalex.org/W2023988450","https://openalex.org/W2029349261","https://openalex.org/W2029754303","https://openalex.org/W2043971465","https://openalex.org/W2045593919","https://openalex.org/W2051299429","https://openalex.org/W2058009551","https://openalex.org/W2059971613","https://openalex.org/W2100358124","https://openalex.org/W2101639085","https://openalex.org/W2119125755","https://openalex.org/W2152171006","https://openalex.org/W2163150789","https://openalex.org/W2165992156","https://openalex.org/W2222382563","https://openalex.org/W2511727651","https://openalex.org/W2529827714","https://openalex.org/W2573715514","https://openalex.org/W2613327815","https://openalex.org/W2890351024","https://openalex.org/W4244133811","https://openalex.org/W4248866144"],"related_works":["https://openalex.org/W2801457640","https://openalex.org/W2511727651","https://openalex.org/W3080850015","https://openalex.org/W7071681029","https://openalex.org/W2514294276","https://openalex.org/W2106839177","https://openalex.org/W2760629754","https://openalex.org/W4306316915","https://openalex.org/W2604370700","https://openalex.org/W4409972024"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":16},{"year":2025,"cited_by_count":25},{"year":2024,"cited_by_count":18},{"year":2023,"cited_by_count":22},{"year":2022,"cited_by_count":22},{"year":2021,"cited_by_count":15},{"year":2020,"cited_by_count":17},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2018-03-29T00:00:00"}