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Without a stable reference layer, each data update requires repeated and costly re‑matching and conflation, i.e. the process of combining and aligning data from different sources so they refer to the same real‑world object. A global entity reference system addresses this by providing providing persistent identifiers that remain stable across map changes, enabling consistent association of data to be associated with the same real‑world entity over time, even as despite evolving map representations evolve.
How does GERS address differences between maps?
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