Automatic Derivation of Surface Text Patterns for a Maximum Entropy Based Question Answering System

In this paper we investigate the use of surface text patterns for a Maximum Entropy based Question Answering (QA) system. These text patterns are collected automatically in an unsupervised fashion using a collection of trivia question and answer pairs as seeds. These patterns are used to generate features for a statistical question answering system. We report our results on the TREC-10 question set.

• Type: Conference
• Year: 2003
• Where: NAACL
• Authors: Deepak Ravichandran, Abraham Ittycheriah, Salim Roukos
• Keywords: Entropy Based Question, NAACL 2003, NAACL 2007, Question Answering, Text Patterns