{"id":"https://openalex.org/W7167065144","doi":"https://doi.org/10.48550/arxiv.2607.00006","title":"Persona Without Substrate: Regime-Dependence and the LLM Individuation Problem","display_name":"Persona Without Substrate: Regime-Dependence and the LLM Individuation Problem","publication_year":2026,"publication_date":"2026-05-01","ids":{"openalex":"https://openalex.org/W7167065144","doi":"https://doi.org/10.48550/arxiv.2607.00006"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2607.00006","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00006","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2607.00006","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5139888725","display_name":"Shuaizhi Cheng","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Cheng, Shuaizhi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5139888725"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14074","display_name":"Persona Design and Applications","score":0.323199987411499,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T14074","display_name":"Persona Design and Applications","score":0.323199987411499,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"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/T11883","display_name":"Embodied and Extended Cognition","score":0.11420000344514847,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11431","display_name":"Action Observation and Synchronization","score":0.07689999788999557,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/individuation","display_name":"Individuation","score":0.8036999702453613},{"id":"https://openalex.org/keywords/persona","display_name":"Persona","score":0.6909999847412109},{"id":"https://openalex.org/keywords/identity","display_name":"Identity (music)","score":0.546999990940094},{"id":"https://openalex.org/keywords/content","display_name":"Content (measure theory)","score":0.42899999022483826},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.359499990940094},{"id":"https://openalex.org/keywords/structural-approach","display_name":"Structural approach","score":0.3124000132083893}],"concepts":[{"id":"https://openalex.org/C2779148493","wikidata":"https://www.wikidata.org/wiki/Q681449","display_name":"Individuation","level":2,"score":0.8036999702453613},{"id":"https://openalex.org/C313442","wikidata":"https://www.wikidata.org/wiki/Q778556","display_name":"Persona","level":2,"score":0.6909999847412109},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.555899977684021},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.5526999831199646},{"id":"https://openalex.org/C2778355321","wikidata":"https://www.wikidata.org/wiki/Q17079427","display_name":"Identity (music)","level":2,"score":0.546999990940094},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.44909998774528503},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4359000027179718},{"id":"https://openalex.org/C2778152352","wikidata":"https://www.wikidata.org/wiki/Q5165061","display_name":"Content (measure theory)","level":2,"score":0.42899999022483826},{"id":"https://openalex.org/C188147891","wikidata":"https://www.wikidata.org/wiki/Q147638","display_name":"Cognitive science","level":1,"score":0.3986999988555908},{"id":"https://openalex.org/C180747234","wikidata":"https://www.wikidata.org/wiki/Q23373","display_name":"Cognitive psychology","level":1,"score":0.36329999566078186},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.359499990940094},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.334199994802475},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.31279999017715454},{"id":"https://openalex.org/C2778491795","wikidata":"https://www.wikidata.org/wiki/Q25109883","display_name":"Structural approach","level":3,"score":0.3124000132083893},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.31049999594688416},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.29440000653266907},{"id":"https://openalex.org/C21190884","wikidata":"https://www.wikidata.org/wiki/Q1076131","display_name":"Presupposition","level":2,"score":0.2879999876022339},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.2879999876022339},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2808000147342682},{"id":"https://openalex.org/C2776505523","wikidata":"https://www.wikidata.org/wiki/Q4785468","display_name":"Plan (archaeology)","level":2,"score":0.27630001306533813},{"id":"https://openalex.org/C2991839931","wikidata":"https://www.wikidata.org/wiki/Q48264","display_name":"Gender identity","level":2,"score":0.274399995803833},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.26260000467300415},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.25220000743865967},{"id":"https://openalex.org/C11171543","wikidata":"https://www.wikidata.org/wiki/Q41630","display_name":"Psychoanalysis","level":1,"score":0.2500999867916107}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2607.00006","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00006","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2607.00006","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00006","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Beckmann":[0,117],"&amp;":[1,118,141],"Butlin's":[2,119],"(2026)":[3],"ontological":[4],"framework":[5],"for":[6,102,131],"the":[7,18,22,27,60,93,99,132,135],"LLM":[8],"individuation":[9],"problem":[10],"inherits":[11],"an":[12],"unargued":[13],"cross-regime":[14],"co-reference":[15],"assumption":[16],"from":[17,42],"persona-vectors":[19],"literature:":[20],"that":[21,90],"same":[23,28,133,136],"direction":[24],"picks":[25],"out":[26],"content":[29,104],"under":[30,82],"prompt-conditioning,":[31],"gradient-descent":[32],"fine-tuning,":[33],"and":[34,47,54,78,144],"inference-time":[35,83],"steering.":[36],"We":[37,95],"present":[38],"four":[39],"empirical":[40],"wedges":[41],"persona-topology":[43],"experiments":[44],"on":[45],"Qwen3-4B-Instruct":[46],"Mistral-7B-Instruct-v0.2":[48],"-":[49,89],"non-collinearity":[50],"of":[51],"prompt-extracted":[52],"vectors":[53],"fine-tune":[55],"basins;":[56],"fictional":[57],"personas":[58],"displacing":[59],"model":[61],"along":[62],"real-anchor":[63],"directions":[64],"more":[65],"strongly":[66],"than":[67,129],"real":[68],"anchors":[69],"do;":[70],"contradictory-valenced":[71],"mixtures":[72],"biased":[73],"toward":[74],"a":[75,106,111],"training-history-determined":[76],"attractor;":[77],"asymmetric":[79],"compositional":[80],"algebra":[81],"arithmetic":[84],"versus":[85],"fine-tune-time":[86],"chimera":[87],"training":[88],"jointly":[91],"undermine":[92],"assumption.":[94],"propose":[96],"regime-indexed":[97],"individuation:":[98],"identity":[100],"unit":[101],"representational":[103],"is":[105],"(vehicle,":[107],"regime)":[108],"pair,":[109],"not":[110],"vehicle":[112],"alone.":[113],"Under":[114],"this":[115],"framework,":[116],"three":[120,124],"candidate":[121],"positions":[122],"describe":[123],"different":[125],"regime-internal":[126],"objects":[127],"rather":[128],"competing":[130],"referent;":[134],"diagnosis":[137],"applies":[138],"to":[139],"Mollo":[140],"Milli\u00e8re,":[142],"Chalmers,":[143],"Cerullo.":[145]},"counts_by_year":[],"updated_date":"2026-07-28T07:46:37.118299","created_date":"2026-07-03T00:00:00"}
