Query Disambiguation Research Articles

A critical evaluation of ontology languages for geographic information retrieval on the Internet

A geo-ontology has a key role to play in the development of a spatially aware search engine, with regard to providing support for query disambiguation, query term expansion, relevance ranking and web resource annotation. This paper reviews those functions and identifies the challenges arising in the construction and maintenance of such an ontology. Two current contenders for the representation of the geo-ontology are GML, a specific markup language for geographic domains and OWL, a generic ontology representation language. Both languages are used to model the geo-ontology designed for supporting web retrieval of geographic concepts. The powers and limitations of the languages are identified. In particular, the paper highlights the lack of representation and reasoning abilities for different types of rules needed for supporting the geo-ontology.

A natural language approach to flexible model querying

Abstract We describe an interface to a crop model that uses techniques from natural language interpretation work. A graphical user interface (GUI) and a conventional command language each has its own limitations in terms of expressive power. Our restricted natural language interface (NLI) has some of the advantages of real natural language, such as familiarity of medium and tolerance of the user's manner of expression, together with some of the advantages of the GUI. Behind the interface itself, inferences are made with respect to the model, including query validity checking and disambiguation. In this paper we consider relevant prior research, before describing the project aims and details of the interface. We conclude with a discussion of the strengths and weaknesses of the approach taken, and how it could be improved.