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Lightly Supervised Learning of Procedural Dialog Systems

By Svitlana Volkova, Pallavi Choudhury, Chris Quirk, Bill Dolan and Luke Zettlemoyer

Abstract

Procedural dialog systems can help users achieve a wide range of goals. However, such systems are challenging to build, currently requiring manual engineering of substantial domain-specific task knowledge and dialog management strategies. In this paper, we demonstrate that it is possible to learn procedural dialog systems given only light supervision, of the type that can be provided by non-experts. We consider domains where the required task knowledge exists in textual form (e.g., instructional web pages) and where system builders have access to statements of user intent (e.g., search query logs or dialog interactions). To learn from such textual resources, we describe a novel approach that first automatically extracts task knowledge from instructions, then learns a dialog manager over this task knowledge to provide assistance. Evalutation in Microsoft Office domain demonstrates that the individual components are accurate enough and when integrated into a dialog system provide effective help to users.

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.9082
Provided by: CiteSeerX
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