Bridging the lexical chasm: statistical approaches to answer-finding

Abstract This paper investigates whether a machine can automatically learn the task of finding, within a large collection of candidate responses, the answers to questions. The learning process consists of inspecting a collection of answered questions and characterizing the relation between question and answer with a statistical model. For the purpose of learning this relation, we propose two sources of data: Usenet FAQ documents and customer service call-center dialogues from a large retail company. We will show that the task of “answer-finding” differs from both document retrieval and traditional questionanswering, presenting challenges different from those found in these problems. The central aim of this work is to discover, through theoretical and empirical investigation, those statistical techniques best suited to the answer-finding problem.

• Type: Conference
• Year: 2000
• Where: SIGIR
• Authors: Adam L. Berger, Rich Caruana, David Cohn, Dayne Freitag, Vibhu O. Mittal
• Keywords: Answered Questions, Information Management, Large Retail Company, Service Call-center Dialogues, SIGIR 2000