{"id":"https://openalex.org/W4416922111","doi":"https://doi.org/10.1145/3764925.3770908","title":"Towards Foundation Model-based Generation of Human Mobility Trajectories","display_name":"Towards Foundation Model-based Generation of Human Mobility Trajectories","publication_year":2025,"publication_date":"2025-11-03","ids":{"openalex":"https://openalex.org/W4416922111","doi":"https://doi.org/10.1145/3764925.3770908"},"language":null,"primary_location":{"id":"doi:10.1145/3764925.3770908","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3764925.3770908","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3764925.3770908","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 1st ACM SIGSPATIAL International Workshop on Urban Mobility Foundation Models","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3764925.3770908","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5010089822","display_name":"Siyu Li","orcid":"https://orcid.org/0009-0001-0561-1738"},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Siyu Li","raw_affiliation_strings":["Emory University, Atlanta, Georgia, USA"],"raw_orcid":"https://orcid.org/0009-0001-0561-1738","affiliations":[{"raw_affiliation_string":"Emory University, Atlanta, Georgia, USA","institution_ids":["https://openalex.org/I150468666"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058082404","display_name":"Toan Tran","orcid":"https://orcid.org/0009-0001-7524-5665"},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Toan Tran","raw_affiliation_strings":["Emory University, Atlanta, Georgia, USA"],"raw_orcid":"https://orcid.org/0009-0001-7524-5665","affiliations":[{"raw_affiliation_string":"Emory University, Atlanta, Georgia, USA","institution_ids":["https://openalex.org/I150468666"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074800190","display_name":"Lingyi Zhao","orcid":"https://orcid.org/0000-0001-8544-3326"},"institutions":[{"id":"https://openalex.org/I4210151176","display_name":"Novateur Research Solutions (United States)","ror":"https://ror.org/04gc7ef93","country_code":"US","type":"company","lineage":["https://openalex.org/I4210151176"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lingyi Zhao","raw_affiliation_strings":["Novateur Research Solutions, Ashburn, Virginia, USA"],"raw_orcid":"https://orcid.org/0000-0001-8544-3326","affiliations":[{"raw_affiliation_string":"Novateur Research Solutions, Ashburn, Virginia, USA","institution_ids":["https://openalex.org/I4210151176"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083630319","display_name":"Khurram Shafique","orcid":"https://orcid.org/0000-0002-3834-324X"},"institutions":[{"id":"https://openalex.org/I4210151176","display_name":"Novateur Research Solutions (United States)","ror":"https://ror.org/04gc7ef93","country_code":"US","type":"company","lineage":["https://openalex.org/I4210151176"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Khurram Shafique","raw_affiliation_strings":["Novateur Research Solutions, Ashburn, Virginia, USA"],"raw_orcid":"https://orcid.org/0000-0002-3834-324X","affiliations":[{"raw_affiliation_string":"Novateur Research Solutions, Ashburn, Virginia, USA","institution_ids":["https://openalex.org/I4210151176"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5078394535","display_name":"Li Xiong","orcid":"https://orcid.org/0000-0001-7354-0428"},"institutions":[{"id":"https://openalex.org/I150468666","display_name":"Emory University","ror":"https://ror.org/03czfpz43","country_code":"US","type":"education","lineage":["https://openalex.org/I150468666"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Li Xiong","raw_affiliation_strings":["Emory University, Atlanta, Georgia, USA"],"raw_orcid":"https://orcid.org/0000-0001-7354-0428","affiliations":[{"raw_affiliation_string":"Emory University, Atlanta, Georgia, USA","institution_ids":["https://openalex.org/I150468666"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5010089822"],"corresponding_institution_ids":["https://openalex.org/I150468666"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.36083593,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"22","last_page":"24"},"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":0.8112000226974487,"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":0.8112000226974487,"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/T11106","display_name":"Data Management and Algorithms","score":0.05009999871253967,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10757","display_name":"Geographic Information Systems Studies","score":0.027499999850988388,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"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/workflow","display_name":"Workflow","score":0.7551000118255615},{"id":"https://openalex.org/keywords/coherence","display_name":"Coherence (philosophical gambling strategy)","score":0.5218999981880188},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.5174999833106995},{"id":"https://openalex.org/keywords/architecture","display_name":"Architecture","score":0.43869999051094055},{"id":"https://openalex.org/keywords/data-access","display_name":"Data access","score":0.3562999963760376},{"id":"https://openalex.org/keywords/foundation","display_name":"Foundation (evidence)","score":0.335999995470047}],"concepts":[{"id":"https://openalex.org/C177212765","wikidata":"https://www.wikidata.org/wiki/Q627335","display_name":"Workflow","level":2,"score":0.7551000118255615},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7297999858856201},{"id":"https://openalex.org/C2781181686","wikidata":"https://www.wikidata.org/wiki/Q4226068","display_name":"Coherence (philosophical gambling strategy)","level":2,"score":0.5218999981880188},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5174999833106995},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.43869999051094055},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4271000027656555},{"id":"https://openalex.org/C47487241","wikidata":"https://www.wikidata.org/wiki/Q5227230","display_name":"Data access","level":2,"score":0.3562999963760376},{"id":"https://openalex.org/C2780966255","wikidata":"https://www.wikidata.org/wiki/Q5474306","display_name":"Foundation (evidence)","level":2,"score":0.335999995470047},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.328900009393692},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3278000056743622},{"id":"https://openalex.org/C115903868","wikidata":"https://www.wikidata.org/wiki/Q80993","display_name":"Software engineering","level":1,"score":0.3151000142097473},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.3149999976158142},{"id":"https://openalex.org/C67186912","wikidata":"https://www.wikidata.org/wiki/Q367664","display_name":"Data modeling","level":2,"score":0.30959999561309814},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.304500013589859},{"id":"https://openalex.org/C58642233","wikidata":"https://www.wikidata.org/wiki/Q8269924","display_name":"Taxonomy (biology)","level":2,"score":0.30070000886917114},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2777000069618225},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.2689000070095062},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.2587999999523163},{"id":"https://openalex.org/C3020493868","wikidata":"https://www.wikidata.org/wiki/Q55631277","display_name":"Real world data","level":2,"score":0.25870001316070557}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3764925.3770908","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3764925.3770908","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3764925.3770908","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 1st ACM SIGSPATIAL International Workshop on Urban Mobility Foundation Models","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3764925.3770908","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3764925.3770908","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3764925.3770908","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 1st ACM SIGSPATIAL International Workshop on Urban Mobility Foundation Models","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4416922111.pdf","grobid_xml":"https://content.openalex.org/works/W4416922111.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W3080501557","https://openalex.org/W4386053119","https://openalex.org/W4404611717","https://openalex.org/W4409150612"],"related_works":[],"abstract_inverted_index":{"Generating":[0],"realistic":[1],"human":[2],"mobility":[3],"trajectories":[4,115],"is":[5],"critical":[6],"for":[7,94],"urban":[8],"computing,":[9],"transportation,":[10],"and":[11,16,55,77,108],"epidemiology,":[12],"since":[13],"privacy":[14],"constraints":[15],"limited":[17,39],"data":[18,45],"availability":[19],"often":[20],"restrict":[21],"access":[22],"to":[23,33,40],"real-world":[24],"data.":[25],"Recent":[26],"advances":[27],"apply":[28],"Large":[29],"Language":[30],"Models":[31],"(LLMs)":[32],"this":[34,59],"task.":[35],"Existing":[36],"methods":[37],"are":[38],"either":[41],"fine-tuning":[42],"on":[43,71],"structured":[44],"or":[46],"prompting":[47],"LLMs,":[48],"each":[49],"with":[50,105,116],"trade-offs":[51],"between":[52],"semantic":[53],"coherence":[54],"spatial-temporal":[56],"precision.":[57],"In":[58],"work,":[60],"we":[61,83],"propose":[62,84],"a":[63,85,117,125],"taxonomy":[64],"of":[65,127],"LLM-based":[66],"trajectory":[67,96],"generation":[68],"approaches":[69],"based":[70],"interaction":[72],"modality,":[73],"knowledge":[74,123],"injection":[75],"granularity,":[76],"controllability.":[78],"Building":[79],"upon":[80],"the":[81,91,99,109],"insights,":[82],"hierarchical":[86],"LLM":[87],"agent":[88],"workflow":[89,118],"under":[90],"orchestrator-worker":[92],"architecture":[93],"controllable":[95],"generation,":[97],"where":[98],"orchestrator":[100],"first":[101],"produces":[102],"activity":[103],"chains":[104],"contextual":[106],"reasoning":[107],"workers":[110],"refine":[111],"them":[112],"into":[113],"complete":[114],"that":[119],"injects":[120],"fine-grained":[121],"spatiotemporal":[122],"via":[124],"series":[126],"prefixed":[128],"tools.":[129]},"counts_by_year":[],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-12-02T00:00:00"}