Knowing Is Not Telling: Identity Ossification in LLM Representations of Trans-border Communities
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Computer Science > Computers and Society
arXiv:2610.12610 (cs)
[Submitted on 8 Oct 2026]
Title:Knowing Is Not Telling: Identity Ossification in LLM Representations of Trans-border Communities
View a PDF of the paper titled Knowing Is Not Telling: Identity Ossification in LLM Representations of Trans-border Communities, by Minglu Sun and 2 other authors
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Abstract:Ethnic and cultural identities rarely align with political borders, a tension made sharper by migration and long-standing cross-border ties. Communities such as the Sami, the Rohingya, and the Kurds have long lived across more than one state. This tension is especially clear in mainland Southeast Asia, where many communities share history, language, and culture across state lines. We study nine such transborder ethnic communities along China's southwestern border with mainland Southeast Asia, looking at how large language models (LLMs) represent them. We define and study identity ossification: a pattern where LLMs turn a fluid, cross-border ethnic identity into a single, fixed nation-state identity. We introduce the Transborder Identity Ossification Diagnostic Framework (TIODF) that compares direct factual questions with open-ended narrative questions to test whether ossification comes from missing knowledge or from how models frame their answers. We test GPT-5.1 and DeepSeek-V3.2 in English and Chinese. Ossification varies substantially across models and query languages. It appears in only 10.1% of GPT-5.1's English answers, but in 62.6% of DeepSeek-V3.2's Chinese answers. Models often still tell a single-nation story even when they answer the factual question correctly. This decoupling suggests that ossification reflects narrative framing rather than simple knowledge absence, which matters for how we test cultural fairness in multilingual AI systems.
| Subjects: | Computers and Society (cs.CY); Computation and Language (cs.CL) |
| Cite as: | arXiv:2610.12610 [cs.CY] |
| (or arXiv:2610.12610v1 [cs.CY] for this version) | |
| https://doi.org/10.48550/arXiv.2610.12610
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled Knowing Is Not Telling: Identity Ossification in LLM Representations of Trans-border Communities, by Minglu Sun and 2 other authors
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