We typically use the written language on the e-mail and the spoken language by the telephone or face-to-face. In our laboratory, we especially study the communication method of man and machine using spoken language, the method understanding a Japanese written language, and the method using the computer at educational place.
Study of dialog management for spoken dialog system
There are two method managing dialog for dialog system; one is the rule set written by expert, the another is the probabilistic set trained by a lot of training set. In the spoken dialog case, it is more difficult because of misrecognition. We study the generalized comparison method between various dialog management method. And we study multimodal dialog system using some sensor (i.e. Leap Motion, Kinect).
Study of semantic representation that is easy to check the semantic equal between each representation and of dialog system with it
Regardless of the language, the language has some surface representation for a meaning. For example, we use some vocabulary for one meaning. Moreover, we use one sentence or some sentences for one meaning. We propose the semantic representation interpreting various surface representation for one meaning as an unique meaning. And we develop the dialog system using our proposed semantic representation.
Study of support the learner and teacher of educational situation
We study the Japanese dialog training system using dialog system with our proposed the semantic representation. Moreover, we study the environment that support the learner and teacher on beginner programming class.
Own web site
Dictogloss environment on Japanese training situation
Dependency of POMDP
Code-reading support environment