A telephone number inquiry system with dialog structure

A telephone number inquiry system (TNIS) answers caller the phone number he/she wants to know. The traditional system requires the caller to know the full name of the party. In this paper, we propose a novel TNIS with dialog structure that can let caller use a more flexible method while inquiring, i.e., the caller may interact with our system to inquire the phone number by providing just the working, researching area, the surname, or the title, etc. Our system takes the telephone speech as input, after generating the word sequence, it performs a maximum likelihood key-feature matching with the knowledge base. If necessary information is not derived, interactive dialog manager is activated to resolve the caller´s requirement. The experimental results show that our novel approach can make the system more natural