{"id":"https://openalex.org/W2292953274","doi":"https://doi.org/10.1140/epjds/s13688-016-0067-3","title":"Estimation and monitoring of city-to-city travel times using call detail records","display_name":"Estimation and monitoring of city-to-city travel times using call detail records","publication_year":2016,"publication_date":"2016-03-01","ids":{"openalex":"https://openalex.org/W2292953274","doi":"https://doi.org/10.1140/epjds/s13688-016-0067-3","mag":"2292953274"},"language":"en","primary_location":{"id":"doi:10.1140/epjds/s13688-016-0067-3","is_oa":true,"landing_page_url":"https://doi.org/10.1140/epjds/s13688-016-0067-3","pdf_url":"https://epjdatascience.springeropen.com/track/pdf/10.1140/epjds/s13688-016-0067-3","source":{"id":"https://openalex.org/S2504380752","display_name":"EPJ Data Science","issn_l":"2193-1127","issn":["2193-1127"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EPJ Data Science","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://epjdatascience.springeropen.com/track/pdf/10.1140/epjds/s13688-016-0067-3","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5004031974","display_name":"Rainer Kujala","orcid":"https://orcid.org/0000-0003-0248-2181"},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Rainer Kujala","raw_affiliation_strings":["Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland"],"raw_orcid":"https://orcid.org/0000-0003-0248-2181","affiliations":[{"raw_affiliation_string":"Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003213649","display_name":"Talayeh Aledavood","orcid":"https://orcid.org/0000-0002-0110-5694"},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Talayeh Aledavood","raw_affiliation_strings":["Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5082358191","display_name":"Jari Saram\u00e4ki","orcid":"https://orcid.org/0000-0002-5904-4062"},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Jari Saram\u00e4ki","raw_affiliation_strings":["Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Aalto University, P.O. Box 15400, Espoo, FI-00076, Finland","institution_ids":["https://openalex.org/I9927081"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5004031974"],"corresponding_institution_ids":["https://openalex.org/I9927081"],"apc_list":{"value":1190,"currency":"GBP","value_usd":1459},"apc_paid":{"value":1190,"currency":"GBP","value_usd":1459},"fwci":9.9763,"has_fulltext":true,"cited_by_count":21,"citation_normalized_percentile":{"value":0.97001496,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"5","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":1.0,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":1.0,"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/T10698","display_name":"Transportation Planning and Optimization","score":0.9889000058174133,"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/T10298","display_name":"Urban Transport and Accessibility","score":0.9886000156402588,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/casual","display_name":"Casual","score":0.749585747718811},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7074534296989441},{"id":"https://openalex.org/keywords/phone","display_name":"Phone","score":0.5632399916648865},{"id":"https://openalex.org/keywords/mobile-phone","display_name":"Mobile phone","score":0.4813009798526764},{"id":"https://openalex.org/keywords/de-facto","display_name":"De facto","score":0.4727633595466614},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.4438810348510742},{"id":"https://openalex.org/keywords/ranging","display_name":"Ranging","score":0.4279968738555908},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.33101606369018555},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.14763641357421875}],"concepts":[{"id":"https://openalex.org/C2781426162","wikidata":"https://www.wikidata.org/wiki/Q2275793","display_name":"Casual","level":2,"score":0.749585747718811},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7074534296989441},{"id":"https://openalex.org/C2778707766","wikidata":"https://www.wikidata.org/wiki/Q202064","display_name":"Phone","level":2,"score":0.5632399916648865},{"id":"https://openalex.org/C2777421447","wikidata":"https://www.wikidata.org/wiki/Q17517","display_name":"Mobile phone","level":2,"score":0.4813009798526764},{"id":"https://openalex.org/C2992317946","wikidata":"https://www.wikidata.org/wiki/Q712144","display_name":"De facto","level":2,"score":0.4727633595466614},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.4438810348510742},{"id":"https://openalex.org/C115051666","wikidata":"https://www.wikidata.org/wiki/Q6522493","display_name":"Ranging","level":2,"score":0.4279968738555908},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.33101606369018555},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.14763641357421875},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1140/epjds/s13688-016-0067-3","is_oa":true,"landing_page_url":"https://doi.org/10.1140/epjds/s13688-016-0067-3","pdf_url":"https://epjdatascience.springeropen.com/track/pdf/10.1140/epjds/s13688-016-0067-3","source":{"id":"https://openalex.org/S2504380752","display_name":"EPJ Data Science","issn_l":"2193-1127","issn":["2193-1127"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EPJ Data Science","raw_type":"journal-article"},{"id":"pmh:oai:aaltodoc.aalto.fi:123456789/25553","is_oa":true,"landing_page_url":"https://research.aalto.fi/en/publications/62949e81-3c6a-47f8-b14e-92eaa38695a5","pdf_url":null,"source":{"id":"https://openalex.org/S4306401662","display_name":"Aaltodoc (Aalto University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9927081","host_organization_name":"Aalto University","host_organization_lineage":["https://openalex.org/I9927081"],"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":null,"raw_type":"publishedVersion"}],"best_oa_location":{"id":"doi:10.1140/epjds/s13688-016-0067-3","is_oa":true,"landing_page_url":"https://doi.org/10.1140/epjds/s13688-016-0067-3","pdf_url":"https://epjdatascience.springeropen.com/track/pdf/10.1140/epjds/s13688-016-0067-3","source":{"id":"https://openalex.org/S2504380752","display_name":"EPJ Data Science","issn_l":"2193-1127","issn":["2193-1127"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EPJ Data Science","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.5600000023841858}],"awards":[{"id":"https://openalex.org/G6583625854","display_name":null,"funder_award_id":"260427","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"}],"funders":[{"id":"https://openalex.org/F4320321108","display_name":"Academy of Finland","ror":"https://ror.org/05k73zm37"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2292953274.pdf","grobid_xml":"https://content.openalex.org/works/W2292953274.grobid-xml"},"referenced_works_count":31,"referenced_works":["https://openalex.org/W29558465","https://openalex.org/W163418743","https://openalex.org/W178120187","https://openalex.org/W324078353","https://openalex.org/W583762878","https://openalex.org/W1578473173","https://openalex.org/W1834778655","https://openalex.org/W1856795172","https://openalex.org/W1976040640","https://openalex.org/W1987197474","https://openalex.org/W1989491491","https://openalex.org/W1991024675","https://openalex.org/W2003404844","https://openalex.org/W2031767866","https://openalex.org/W2051477898","https://openalex.org/W2084460353","https://openalex.org/W2090650314","https://openalex.org/W2098474202","https://openalex.org/W2100378013","https://openalex.org/W2107761673","https://openalex.org/W2137558058","https://openalex.org/W2151737868","https://openalex.org/W2158331996","https://openalex.org/W2160754518","https://openalex.org/W2275165515","https://openalex.org/W3121562087","https://openalex.org/W3136663026","https://openalex.org/W4213336404","https://openalex.org/W4230695542","https://openalex.org/W4285719527","https://openalex.org/W4299573783"],"related_works":["https://openalex.org/W2889179998","https://openalex.org/W2320213101","https://openalex.org/W2161614663","https://openalex.org/W2017287567","https://openalex.org/W2022621592","https://openalex.org/W2588736557","https://openalex.org/W1014201053","https://openalex.org/W2399255908","https://openalex.org/W4230946658","https://openalex.org/W4318064207"],"abstract_inverted_index":{"Whenever":[0],"someone":[1],"makes":[2],"or":[3,91],"receives":[4],"a":[5,8,11,27,75,87,92,106,228],"call":[6,88],"on":[7,115,120,157,220],"mobile":[9],"telephone,":[10],"Call":[12],"Detail":[13],"Record":[14],"(CDR)":[15],"is":[16,52,70,79,89,95,173,212,225],"automatically":[17],"generated":[18],"by":[19,139,191],"the":[20,72,144,170,193,200,203],"operator":[21],"for":[22,55,108,143,147,179,227],"billing":[23],"purposes.":[24],"CDRs":[25,41,116],"have":[26,42],"wide":[28],"range":[29],"of":[30,74,123,202,230],"applications":[31],"beyond":[32],"billing,":[33],"from":[34,136,233],"social":[35],"science":[36],"to":[37,46,134,155,175,199,214,236],"data-driven":[38],"development.":[39],"Recently,":[40],"been":[43],"increasingly":[44],"used":[45],"study":[47],"human":[48,65],"mobility,":[49],"whose":[50],"understanding":[51],"crucial":[53],"e.g.":[54],"planning":[56],"efficient":[57],"transportation":[58],"infrastructure.":[59],"A":[60],"major":[61],"difficulty":[62],"in":[63,167,186,195],"analyzing":[64],"mobility":[66,153],"using":[67],"CDR":[68,152],"data":[69,135],"that":[71,117,210,224],"location":[73],"cell":[76],"phone":[77],"user":[78],"not":[80,119],"recorded":[81],"continuously":[82],"but":[83,125],"typically":[84],"only":[85],"when":[86],"initiated":[90],"text":[93],"message":[94],"sent.":[96],"In":[97],"this":[98,102],"paper":[99],"we":[100],"address":[101],"problem,":[103],"and":[104,141,183],"develop":[105],"method":[107,133,172],"estimating":[109],"travel":[110,158,181,196,222],"times":[111,159,197,223],"between":[112,160],"cities":[113],"based":[114],"relies":[118],"individual":[121],"trajectories":[122],"people,":[124],"their":[126,184],"collective":[127],"statistical":[128],"properties.":[129],"We":[130,150],"apply":[131],"our":[132,207],"Senegal,":[137],"released":[138],"Sonatel":[140],"Orange":[142],"2014":[145],"Data":[146],"Development":[148],"Challenge.":[149],"turn":[151],"traces":[154],"estimates":[156],"Senegalese":[161],"cities,":[162],"filling":[163],"an":[164],"existing":[165],"gap":[166],"knowledge.":[168],"Moreover,":[169],"proposed":[171],"shown":[174],"be":[176],"highly":[177],"valuable":[178],"monitoring":[180],"conditions":[182],"changes":[185],"near":[187],"real-time,":[188],"as":[189],"demonstrated":[190],"measuring":[192],"decrease":[194],"due":[198],"opening":[201],"Dakar-Diamniadio":[204],"highway.":[205],"Overall,":[206],"results":[208],"indicate":[209],"it":[211],"possible":[213],"extract":[215],"reliable":[216],"de":[217],"facto":[218],"information":[219],"typical":[221],"useful":[226],"variety":[229],"audiences":[231],"ranging":[232],"casual":[234],"travelers":[235],"transport":[237],"infrastructure":[238],"planners.":[239]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
