Developing Geospatial Web Applications Using Question Answering Engines, Knowledge Graphs and Linked Data Tools

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Sergios-Anestis Kefalidis, Konstantinos Plas, George Stamoulis, Dharmen Punjani, Pierre Maret, Manolis Koubarakis

Published: 2024, Last Modified: 22 Jan 2026WISE (PhD Symposium, Demos and Workshops) 2024EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: We show how to develop geospatial web applications using the geospatial question answering engine GeoQA2, the geospatial knowledge graph YAGO2geo, the spatiotemporal RDF store Strabon and the Web-GIS tool Sextant. We demonstrate the combined functionality of these tools by developing PnyQA, a system for exploring data from the 2020 presidential election of the United States using natural language questions.