Georeferencing Non-Gazetteered Place Names using Biological Specimen Records
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Computer Science > Computation and Language
Title:Georeferencing Non-Gazetteered Place Names using Biological Specimen Records
Abstract:Biological specimen records collected by natural history institutions constitute a rich source of temporal geographic knowledge, capturing biodiversity information about regional landscapes as they were recorded at different times. Using digitised data from the Allan Herbarium (New Zealand), this study identifies place names in these specimen locality descriptions that are absent from current gazetteers; we refer to these as non-gazetteer place names (NGPs). These place names are typically historical, vernacular, or colloquial and were used as landmarks to describe a specimen's location at the time of collection. We then investigate the problem of georeferencing the NGPs using only the limited information available in the specimen records. To resolve this, we leverage repeated occurrences of the same place name across specimen records with different specimen locations and spatial relation terms, extracting and inverting these relations to derive constraints on NGP locations. This approach is instantiated within deterministic, probabilistic, and LLM-based methods, enabling a comparative analysis of their strengths and limitations for text-based spatial inference. On a pseudo-NGP benchmark, probabilistic inference achieves the highest accuracy (median error 1.43 km; A@1 km 36%), while the LLM yields competitive but less precise estimates (median error 1.80 km; A@1 km 31%), indicating that, despite advances in LLMs, traditional modelling remains advantageous when high spatial precision is required.
| Comments: | Accepted for publication in the proceedings of the Conference on Spatial Information Theory (COSIT) 2026 |
| Subjects: | Computation and Language (cs.CL); Artificial Intelligence (cs.AI); Information Retrieval (cs.IR) |
| ACM classes: | I.2.7; I.2.3 |
| Cite as: | arXiv:2608.06884 [cs.CL] |
| (or arXiv:2608.06884v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2608.06884
arXiv-issued DOI via DataCite (pending registration)
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