Pythia: Compositional Meaning Construction for Ontology-Based Question Answering on the Semantic Web

@inproceedings{Unger2011PythiaCM,
  title={Pythia: Compositional Meaning Construction for Ontology-Based Question Answering on the Semantic Web},
  author={Christina Unger and Philipp Cimiano},
  booktitle={NLDB},
  year={2011}
}
In this paper we present the ontology-based question answering system Pythia. It compositionally constructs meaning representations using a vocabulary aligned to the vocabulary of a given ontology. In doing so it relies on a deep linguistic analysis, which allows to construct formal queries even for complex natural language questions (e.g. involving quantification and superlatives). 
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