Showing cs.DBShow all
3 papers · 1 filter
cs.DB2026
AuthentiCity: A Multi-Source Provenance-Aware Knowledge Graph and Benchmark for 3D City Models
Huynh Duc An Son Nguyen, Lukas Arzoumanidis, Youness Dehbi
Urban digital twins increasingly combine authoritative, crowd-sourced, machine-learned, and reconstructed data with differing reliability, coverage, and semantics. Yet few urban da…
cs.DB2026
pykci: A Compact Urban Knowledge Graph for Semantic and Spatial Queries using LLMs
Huynh Duc An Son Nguyen, Lukas Arzoumanidis, Youness Dehbi
CityGML, the OGC standard for modeling, storage, and exchange of semantic 3D city models, describes urban objects with detailed semantics, geometry, and topology. Yet this richness…
cs.DB2026
3D Spatial Pattern Matching
Nicole R. Schneider, Avik Das, Lukas Arzoumanidis +3
Spatial pattern matching is the process of matching query entities and constraints with database entities and relations. It has many applications, including similar region search,…