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Large language models are improving quickly, but place understanding still breaks in predictable ways: unclear building/POI containment, conflicting addresses, and duplicate or near-duplicate POIs. Graphlication turns Overture themes (Buildings, Places, Addresses, Transportation) into a provenance-aware spatial knowledge graph and retrieves small, evidence-bearing subgraphs for a specific query so an LLM can answer with traceable support. Rather than forcing early "golden record" merges, Graphlication keeps relationships (containment, adjacency, access, candidate conflation) explicit and audit-friendly. The talk shares a repeatable architecture and practical patterns that teams can apply to ship grounded place Q&A, streamline conflation review, and run systematic quality checks.
Overture's Places database counts more than 72 million places (02/2026). Interactively exploring geospatial databases of this size is a challenging task. This session presents an open source tool based on DuckDB, Mosaic and WebGPU to discover artifacts in a playful way.
Dominik Weckmüller is a GIS expert and data scientist specialized in geospatial AI and NLP. He is an open source advocate with a mission to democratize knowledge.
Thursday April 23, 2026 09:25 - 09:45 CEST Michelangelo
Join us for a special La Dolce Geo: Connecting the Women of Overture Luncheon! We’ve reserved a designated spot in the restaurant specifically for the women of the Overture Maps community to connect, unwind, and share ideas. Whether you want to network with fellow professionals or simply take a relaxing break from the day's sessions over some great food, we’d love to see you there. Grab your plate and come say hello!
Menu: -Potato salad with olives and whole grain mustard (V, VN, GF) -Vegetable pickles and sprouts fingers (V, VN, GF) -Mini quiche Lorraine (V) -Mini bagels with marinated salmon and avocado -Bruschetta with cherry tomatoes and basil (V) -Meat chicken skewer with salmoriglio sauce -Cherry tomato salad with black olives (V, VN, GF) -Mixed vegetables sautéed with coriander (V, VN, GF) -Mini vegan red berry tart (V, VN)
Beverages: Water, Espresso Coffee, Fruit Juices in carafes
