SHAPAQA : Shallow Parsing for Question Answering on the World Wide Web
Sabine Buchholz, Walter M. P. Daelemans · Data Archiving and Networked Services (DANS) · 2001
We introduce shapaqa, a shallow parsing approach to online, open-domain question answering on the WorldWideWeb. Given a form-based natural language question as input, the system uses a memory-based shallow parser to analyze web pages retrieved using normal keyword search on a search engine. Two versions of the system are evaluated on a test set of 200 questions. In combination with two back-off methods a mean reciprocal rank of .46 is achieved.