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.
1 code implementation • 13 Jun 2022 • Leonie von Wahl, Nicolas Tempelmeier, Ashutosh Sao, Elena Demidova
We formulate the Placement of Charging Stations problem as a non-linear integer optimisation problem that seeks the optimal positions for charging stations and the optimal number of charging piles of different charging types.
no code implementations • 21 Mar 2022 • Nicolas Tempelmeier, Elena Demidova
OpenStreetMap is a unique source of openly available worldwide map data, increasingly adopted in real-world applications.
no code implementations • 25 Jan 2022 • Nicolas Tempelmeier, Elena Demidova
This task is remarkably challenging due to the large scale of the dataset, the sheer number of contributors, various vandalism forms, and the lack of annotated data.
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 • 30 Aug 2021 • Nicolas Tempelmeier, Simon Gottschalk, Elena Demidova
OpenStreetMap (OSM) is currently the richest publicly available information source on geographic entities (e. g., buildings and roads) worldwide.
no code implementations • 27 Aug 2021 • Ashutosh Sao, Nicolas Tempelmeier, Elena Demidova
Our model efficiently fuses dynamic and static information to facilitate accurate forecasting.
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.
no code implementations • 20 Jul 2021 • Nicolas Tempelmeier, Udo Feuerhake, Oskar Wage, Elena Demidova
The discovery of spatio-temporal dependencies within urban road networks that cause Recurrent Congestion (RC) patterns is crucial for numerous real-world applications, including urban planning and scheduling of public transportation services.
no code implementations • 6 Nov 2020 • Nicolas Tempelmeier, Elena Demidova
In this article, we propose OSM2KG - a novel link discovery approach to predict identity links between OSM nodes and geographic entities in a knowledge graph.
no code implementations • 1 Mar 2018 • Nicolas Tempelmeier, Elena Demidova, Stefan Dietze
Nevertheless, given the scale and diversity of Web markup data, nodes that provide missing information can be obtained from the Web in large quantities, in particular for categorical properties.