Paper: Natural Language Questions for the Web of Data

ACL ID D12-1035
Title Natural Language Questions for the Web of Data
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012
Authors

The Linked Data initiative comprises struc- tured databases in the Semantic-Web data model RDF. Exploring this heterogeneous data by structured query languages is tedious and error-prone even for skilled users. To ease the task, this paper presents a methodology for translating natural language questions into structured SPARQL queries over linked-data sources. Our method is based on an integer linear pro- gram to solve several disambiguation tasks jointly: the segmentation of questions into phrases; the mapping of phrases to semantic entities, classes, and relations; and the con- struction of SPARQL triple patterns. Our so- lution harnesses the rich type system provided by knowledge bases in the web of linked data, to constrain our semantic-coherence objective function. We present experime...