{"id":"https://openalex.org/W2945849971","doi":"https://doi.org/10.1109/tits.2019.2915273","title":"PC\u2013SPSA: Employing Dimensionality Reduction to Limit SPSA Search Noise in DTA Model Calibration","display_name":"PC\u2013SPSA: Employing Dimensionality Reduction to Limit SPSA Search Noise in DTA Model Calibration","publication_year":2019,"publication_date":"2019-05-16","ids":{"openalex":"https://openalex.org/W2945849971","doi":"https://doi.org/10.1109/tits.2019.2915273","mag":"2945849971"},"language":"en","primary_location":{"id":"doi:10.1109/tits.2019.2915273","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tits.2019.2915273","pdf_url":null,"source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Intelligent Transportation Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://discovery.ucl.ac.uk/10093641/1/PC_SPSA__IEEE_Transactions_ITS__NEW_finalsubmission.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5089237433","display_name":"Moeid Qurashi","orcid":"https://orcid.org/0000-0002-0135-6450"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Moeid Qurashi","raw_affiliation_strings":["Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany"],"raw_orcid":"https://orcid.org/0000-0002-0135-6450","affiliations":[{"raw_affiliation_string":"Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055024212","display_name":"Tao Ma","orcid":"https://orcid.org/0000-0001-6248-7174"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Tao Ma","raw_affiliation_strings":["Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany"],"raw_orcid":"https://orcid.org/0000-0001-6248-7174","affiliations":[{"raw_affiliation_string":"Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048830564","display_name":"Emmanouil Chaniotakis","orcid":"https://orcid.org/0000-0002-4523-9838"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Emmanouil Chaniotakis","raw_affiliation_strings":["Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001459918","display_name":"Constantinos Antoniou","orcid":"https://orcid.org/0000-0003-0203-9542"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Constantinos Antoniou","raw_affiliation_strings":["Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany"],"raw_orcid":"https://orcid.org/0000-0003-0203-9542","affiliations":[{"raw_affiliation_string":"Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Munich, Germany","institution_ids":["https://openalex.org/I62916508"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5089237433"],"corresponding_institution_ids":["https://openalex.org/I62916508"],"apc_list":null,"apc_paid":null,"fwci":4.705,"has_fulltext":true,"cited_by_count":32,"citation_normalized_percentile":{"value":0.93458021,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"21","issue":"4","first_page":"1635","last_page":"1645"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10698","display_name":"Transportation Planning and Optimization","score":0.9998999834060669,"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/T10698","display_name":"Transportation Planning and Optimization","score":0.9998999834060669,"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":0.9997000098228455,"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/T11344","display_name":"Traffic Prediction and Management Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/simultaneous-perturbation-stochastic-approximation","display_name":"Simultaneous perturbation stochastic approximation","score":0.9687602519989014},{"id":"https://openalex.org/keywords/curse-of-dimensionality","display_name":"Curse of dimensionality","score":0.660518229007721},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5739606022834778},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5621243715286255},{"id":"https://openalex.org/keywords/dimensionality-reduction","display_name":"Dimensionality reduction","score":0.5057847499847412},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.5013289451599121},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.48761072754859924},{"id":"https://openalex.org/keywords/bounding-overwatch","display_name":"Bounding overwatch","score":0.4744124114513397},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.4646773934364319},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.41245296597480774},{"id":"https://openalex.org/keywords/stochastic-process","display_name":"Stochastic process","score":0.2963321805000305},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23511868715286255},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.21869918704032898},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08972543478012085}],"concepts":[{"id":"https://openalex.org/C2779880469","wikidata":"https://www.wikidata.org/wiki/Q17084424","display_name":"Simultaneous perturbation stochastic approximation","level":3,"score":0.9687602519989014},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.660518229007721},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5739606022834778},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5621243715286255},{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.5057847499847412},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.5013289451599121},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.48761072754859924},{"id":"https://openalex.org/C63584917","wikidata":"https://www.wikidata.org/wiki/Q333286","display_name":"Bounding overwatch","level":2,"score":0.4744124114513397},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.4646773934364319},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.41245296597480774},{"id":"https://openalex.org/C8272713","wikidata":"https://www.wikidata.org/wiki/Q176737","display_name":"Stochastic process","level":2,"score":0.2963321805000305},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23511868715286255},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.21869918704032898},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08972543478012085}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tits.2019.2915273","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tits.2019.2915273","pdf_url":null,"source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Intelligent Transportation Systems","raw_type":"journal-article"},{"id":"pmh:oai:eprints.ucl.ac.uk.OAI2:10093641","is_oa":true,"landing_page_url":"https://discovery.ucl.ac.uk/id/eprint/10093641/","pdf_url":"https://discovery.ucl.ac.uk/10093641/1/PC_SPSA__IEEE_Transactions_ITS__NEW_finalsubmission.pdf","source":{"id":"https://openalex.org/S4306400024","display_name":"UCL Discovery (University College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I45129253","host_organization_name":"University College London","host_organization_lineage":["https://openalex.org/I45129253"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"   IEEE Transactions on Intelligent Transportation Systems       (2019)     (In press).  ","raw_type":"Article"}],"best_oa_location":{"id":"pmh:oai:eprints.ucl.ac.uk.OAI2:10093641","is_oa":true,"landing_page_url":"https://discovery.ucl.ac.uk/id/eprint/10093641/","pdf_url":"https://discovery.ucl.ac.uk/10093641/1/PC_SPSA__IEEE_Transactions_ITS__NEW_finalsubmission.pdf","source":{"id":"https://openalex.org/S4306400024","display_name":"UCL Discovery (University College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I45129253","host_organization_name":"University College London","host_organization_lineage":["https://openalex.org/I45129253"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"   IEEE Transactions on Intelligent Transportation Systems       (2019)     (In press).  ","raw_type":"Article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.8299999833106995}],"awards":[{"id":"https://openalex.org/G8689810337","display_name":null,"funder_award_id":"392047120","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"}],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2945849971.pdf","grobid_xml":"https://content.openalex.org/works/W2945849971.grobid-xml"},"referenced_works_count":42,"referenced_works":["https://openalex.org/W6346207","https://openalex.org/W203276351","https://openalex.org/W277805214","https://openalex.org/W319516112","https://openalex.org/W638237717","https://openalex.org/W1591064032","https://openalex.org/W1657732787","https://openalex.org/W1964744452","https://openalex.org/W1972547139","https://openalex.org/W1986320533","https://openalex.org/W1989099284","https://openalex.org/W2002691932","https://openalex.org/W2021116817","https://openalex.org/W2033009234","https://openalex.org/W2033530954","https://openalex.org/W2038536268","https://openalex.org/W2053032400","https://openalex.org/W2057226027","https://openalex.org/W2062931431","https://openalex.org/W2065455281","https://openalex.org/W2074343009","https://openalex.org/W2078071122","https://openalex.org/W2084278399","https://openalex.org/W2090192376","https://openalex.org/W2095895396","https://openalex.org/W2107647298","https://openalex.org/W2128452997","https://openalex.org/W2247520887","https://openalex.org/W2565654137","https://openalex.org/W2734870733","https://openalex.org/W2773508019","https://openalex.org/W2786369073","https://openalex.org/W2840473096","https://openalex.org/W2902792375","https://openalex.org/W2903870477","https://openalex.org/W2954749449","https://openalex.org/W4231048633","https://openalex.org/W6610133629","https://openalex.org/W6611112163","https://openalex.org/W6635380543","https://openalex.org/W6741320478","https://openalex.org/W6765171051"],"related_works":["https://openalex.org/W2146933526","https://openalex.org/W1995622179","https://openalex.org/W1552543208","https://openalex.org/W2074396517","https://openalex.org/W2166963679","https://openalex.org/W2187269125","https://openalex.org/W1641615907","https://openalex.org/W3089231081","https://openalex.org/W2093956241","https://openalex.org/W2354420595"],"abstract_inverted_index":{"Calibration":[0],"and":[1,30,94,138,147,169],"validation":[2],"have":[3],"long":[4],"been":[5,66],"a":[6,34,79,109,177,181],"significant":[7],"topic":[8],"in":[9,91,131],"traffic":[10,19],"model":[11,71],"development.":[12],"In":[13,96],"fact,":[14],"when":[15],"moving":[16],"to":[17,25,54,85,107],"dynamic":[18],"assignment":[20],"(DTA)":[21],"models,":[22],"the":[23,28,38,69,89,118,124,135,142,164],"need":[24],"dynamically":[26],"update":[27],"demand":[29],"supply":[31],"components":[32,104],"creates":[33],"considerable":[35],"burden":[36],"on":[37],"existing":[39],"calibration":[40,47],"algorithms,":[41],"often":[42,83],"rendering":[43],"them":[44],"impractical.":[45],"These":[46],"approaches":[48],"are":[49,173],"mostly":[50],"restricted":[51],"either":[52],"due":[53],"non-linearity":[55],"or":[56],"increasing":[57],"problem":[58,92,136],"dimensionality.":[59],"Simultaneous":[60],"perturbation":[61],"stochastic":[62],"approximation":[63],"(SPSA)":[64],"has":[65],"proposed":[67],"for":[68,76],"DTA":[70],"calibration,":[72],"with":[73,88,102],"encouraging":[74],"results,":[75],"more":[77],"than":[78],"decade.":[80],"However,":[81],"it":[82],"fails":[84],"converge":[86],"reasonably":[87],"increase":[90],"size":[93,137],"complexity.":[95,139],"this":[97],"paper,":[98],"we":[99,112],"combine":[100],"SPSA":[101,122],"principal":[103],"analysis":[105,179],"(PCA)":[106],"form":[108],"new":[110],"algorithm,":[111,143],"call,":[113],"PC\u2013SPSA.":[114],"The":[115,158],"PCA":[116],"limits":[117],"search":[119],"area":[120],"of":[121,155,166],"within":[123],"structural":[125],"relationships":[126],"captured":[127],"from":[128,163],"historical":[129],"estimates":[130],"lower":[132],"dimensions,":[133],"reducing":[134],"We":[140],"formulate":[141],"demonstrate":[144],"its":[145,149],"operation,":[146],"explore":[148],"performance":[150],"using":[151,180],"an":[152],"urban":[153],"network":[154],"Vitoria,":[156],"Spain.":[157],"practical":[159],"issues":[160],"that":[161],"emerge":[162],"scale":[165],"different":[167],"variables":[168],"bounding":[170],"their":[171],"values":[172],"also":[174],"analyzed":[175],"through":[176],"sensitivity":[178],"non-linear":[182],"synthetic":[183],"function.":[184]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":1}],"updated_date":"2026-04-29T09:16:38.111599","created_date":"2025-10-10T00:00:00"}