Indonesian dialogue management system using information state for independent closed domain

In order to make the development process of a closed domain dialogue system become easier and faster, we proposed an easily independent closed domain dialogue system by using information state approach. To handle the adaptability of domain, we employed the concept of operand, operator and expression. These concepts are used in the knowledge representation and in the information state used in dialogue system. By this, in order to build the dialogue system for a new domain, the modification is only on the knowledge database entry, not the knowledge database structure. The complete architecture of the dialogue system consists of input analyzer, dialogue moves determiner, scenario detection, dialogue resolves, and dialogue manager which combine all results from previous steps in information-state model with knowledge domain to get system response. The interaction between user and system is arranged in the form of scenario which suitable with the information-state model. The scenarios can be handled by this system are direct answer, specification, generalization, and out of topic. This architecture has been tested for each scenario to five different domains, both lecture material and non-lecture material domains.