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Learning Dialogue Strategies from Older and Younger Simulated Users

By Georgila Kallirroi, Maria K. Wolters and Johanna D. Moore

Abstract

Older adults are a challenging user group\ud because their behaviour can be highly variable.\ud To the best of our knowledge, this\ud is the first study where dialogue strategies\ud are learned and evaluated with both simulated\ud younger users and simulated older\ud users. The simulated users were derived\ud from a corpus of interactions with a strict\ud system-initiative spoken dialogue system\ud (SDS). Learning from simulated younger\ud users leads to a policy which is close to\ud one of the dialogue strategies of the underlying\ud SDS, while the simulated older users\ud allow us to learn more flexible dialogue\ud strategies that accommodate mixed initiative.\ud We conclude that simulated users are\ud a useful technique for modelling the behaviour\ud of new user groups

Year: 2010
OAI identifier: oai:www.era.lib.ed.ac.uk:1842/4096

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