Sciweavers

AIRS
2010
Springer

Top-Down and Bottom-Up: A Combined Approach to Slot Filling

13 years 1 months ago
Top-Down and Bottom-Up: A Combined Approach to Slot Filling
The Slot Filling task requires a system to automatically distill information from a large document collection and return answers for a query entity with specified attributes (`slots'), and use them to expand the Wikipedia infoboxes. We describe two bottom-up Information Extraction style pipelines and a top-down Question Answering style pipeline to address this task. We propose several novel approaches to enhance these pipelines, including statistical answer re-ranking and Markov Logic Networks based cross-slot reasoning. We demonstrate that our system achieves state-of-the-art performance, with 3.1% higher precision and 2.6% higher recall compared with the best system in the KBP2009 evaluation.
Zheng Chen, Suzanne Tamang, Adam Lee, Xiang Li, Ma
Added 10 Feb 2011
Updated 10 Feb 2011
Type Journal
Year 2010
Where AIRS
Authors Zheng Chen, Suzanne Tamang, Adam Lee, Xiang Li, Marissa Passantino, Heng Ji
Comments (0)