Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Proceedings Euroconference |
| Subtitle of host publication | Recent Advances in Natural Language Processing, Tsigov Chark, Bulgaria, 5-7 September 2001 |
| Editors | G. Angelova, et al. |
| Place of Publication | Bulgaria |
| Publisher | Tsigov Chark |
| Pages | 47-51 |
| Number of pages | 5 |
| ISBN (Print) | 9789549090611 |
| Publication status | Published - 2001 |