1 code implementation • 17 Feb 2023 • Elena Demidova, Alishiba Dsouza, Simon Gottschalk, Nicolas Tempelmeier, Ran Yu
Geographic data plays an essential role in various Web, Semantic Web and machine learning applications.
no code implementations • 21 Sep 2021 • Alishiba Dsouza, Nicolas Tempelmeier, Ran Yu, Simon Gottschalk, Elena Demidova
We describe the WorldKG knowledge graph, including its ontology that builds the semantic dataset backbone, the extraction procedure of the ontology and geographic entities from OpenStreetMap, and the methods to enhance entity annotation.
no code implementations • 28 Jul 2021 • Alishiba Dsouza, Nicolas Tempelmeier, Elena Demidova
Our experiments performed to align OSM datasets for several countries with two of the most prominent openly available knowledge graphs, namely, Wikidata and DBpedia, demonstrate that the proposed approach outperforms the state-of-the-art schema alignment baselines by up to 53 percentage points in terms of F1-score.