Large-Scale Experiments on Data-Driven Design of Commercial Spoken Dialog Systems

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TitleLarge-Scale Experiments on Data-Driven Design of Commercial Spoken Dialog Systems
Publication TypeJournal Article
Year of Publication2011
AuthorsSuendermann, D, Liscombe J, Bloom J, Li G, Pieraccini R
Keywords(commercial) spoken dialog systems, Contender, data-driven design, optimization
Abstract

Abstract The design of commercial spoken dialog systems is most com- monly based on hand-crafting call flows. Voice interaction designers write prompts, predict caller responses, set speech recognition parameters, implement interaction strategies, all based on “best design practices”. Recently, we presented the mathematical framework “Contender” (similar to reinforcement learning) that allows for replacing manual decisions made dur- ing system design by data-driven soft decisions made at system run time optimizing the cumulative reward of an application. The current paper reports on the results of 26 Contenders imple- mented in commercial applications processing a total of about 15 million calls.

URLhttp://www.thepieraccinis.com/publications/2011/interspeech_201104012.pdf