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AGILE: GIScience Series Open-access proceedings of the Association of Geographic Information Laboratories in Europe
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Articles | Volume 1
AGILE GIScience Ser., 1, 23, 2020
AGILE GIScience Ser., 1, 23, 2020

  15 Jul 2020

15 Jul 2020

Extracting interrogative intents and concepts from geo-analytic questions

Haiqi Xu1, Ehsan Hamzei2, Enkhbold Nyamsuren1, Han Kruiger1, Stephan Winter2, Martin Tomko2, and Simon Scheider1 Haiqi Xu et al.
  • 1Utrecht University, Princetonlaan 8a, 3584 CB Utrecht, the Netherlands
  • 2The University of Melbourne, 3010 Victoria, Australia

Keywords: Geo-analytic questions, Geographic questions, Information extraction, Grammatical parser, Concepts and intents, Geographic question-answering systems

Abstract. Understanding syntactic and semantic structure of geographic questions is a necessary step towards true geographic question-answering (GeoQA) machines. The empirical basis for the understanding of the capabilities expected from GeoQA systems are geographic question corpora. Available corpora in English have been mostly drawn from generic Web search logs or limited user studies, supporting the focus of GeoQA systems on retrieving factoids: factual knowledge about particular places and everyday processes. Yet, the majority of questions enquired about in the spatial sciences go beyond simple place facts, with more complex analytical intents informing the questions. In this paper, we introduce a new corpus of geo-analytic questions drawn from English textbooks and scientific articles. We analyse and compare this corpus with two general-purpose GeoQA corpora in terms of grammatical complexity and semantic concepts, using a new parsing method that allows us to differentiate and quantify patterns of a question’s intent.

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