pykci transforms CityGML 2.0 datasets into a compact, spatially indexed Neo4j knowledge graph supporting LLM text-to-Cypher queries, demonstrated on Hamburg LoD2 data with lossless round-trip to CityGML.
Suchanek, Klaus Berberich, Edwin Lewis-Kelham, Gerard de Melo, and Gerhard Weikum
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pykci: A Compact Urban Knowledge Graph for Semantic and Spatial Queries using LLMs
pykci transforms CityGML 2.0 datasets into a compact, spatially indexed Neo4j knowledge graph supporting LLM text-to-Cypher queries, demonstrated on Hamburg LoD2 data with lossless round-trip to CityGML.