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SUMMARY:POMDP-based dialogue manager adaptation to extended domains - Mili
 ca Gasic (University of Cambridge)
DTSTART:20130906T110000Z
DTEND:20130906T120000Z
UID:TALK46644@talks.cam.ac.uk
CONTACT:Rogier van Dalen
DESCRIPTION:Existing spoken dialogue systems are typically designed to ope
 rate in a static and well-defined domain\, and are not well suited to task
 s in which the concepts and values change dynamically. As a first step in 
 this direction\, this talk addresses the problem of automatically extendin
 g a dialogue system to include a new previously unseen concept (or slot) w
 hich can be then used as a search constraint in an information query. In t
 he context of Gaussian process POMDP optimisation\, a domain can be extend
 ed through a simple expansion of the kernel and then rapidly adapted. As w
 ell as being much quicker\, adaptation rather than retraining from scratch
  is shown to avoid subjecting users to unacceptably poor performance durin
 g the learning stage.
LOCATION:Department of Engineering - LR6
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