Sciweavers

ICASSP
2011
IEEE
12 years 8 months ago
POMDP concept policies and task structures for hybrid dialog management
We address several challenges for applying statistical dialog managers based on Partially Observable Markov Models to real world problems: to deal with large numbers of concepts, ...
Sebastian Varges, Giuseppe Riccardi, Silvia Quarte...
SIGDIAL
2010
13 years 2 months ago
Investigating Clarification Strategies in a Hybrid POMDP Dialog Manager
We investigate the clarification strategies exhibited by a hybrid POMDP dialog manager based on data obtained from a phone-based user study. The dialog manager combines task struc...
Sebastian Varges, Silvia Quarteroni, Giuseppe Ricc...
CSL
2008
Springer
13 years 4 months ago
User simulation in a stochastic dialog system
We present a new methodology of user simulation applied to the evaluation and refinement of stochastic dialog systems. Common weaknesses of these systems are the scarceness of the...
Francisco Torres, Emilio Sanchis, Encarna Segarra
DLOG
1998
13 years 6 months ago
Combining Expression and Content in Domains for Dialog Managers
We present work in progress on abstracting dialog managers from their domain in order to implement a dialog manager development tool which takes (among other data) a domain descri...
Bernd Ludwig, Günther Görz, Heinrich Nie...
ACL
2008
13 years 6 months ago
Robust Dialog Management with N-Best Hypotheses Using Dialog Examples and Agenda
This work presents an agenda-based approach to improve the robustness of the dialog manager by using dialog examples and n-best recognition hypotheses. This approach supports n-be...
Cheongjae Lee, Sangkeun Jung, Gary Geunbae Lee
HRI
2007
ACM
13 years 8 months ago
Efficient model learning for dialog management
Intelligent planning algorithms such as the Partially Observable Markov Decision Process (POMDP) have succeeded in dialog management applications [10, 11, 12] because of their rob...
Finale Doshi, Nicholas Roy