Dialog systems

Keywords:

Dialog systems, dialog, dialog manager, IRKR, Galaxy Comunicator, HUB, audio server, automated speech recognition, text to speech.

Abstract

A dialog system is a computer system intended to converse with a human, with a coherent structure. Dialog systems have employed text, speech, graphics, haptics, gestures and other modes for communication on both the input and output channel. What does and does not constitute a dialog system may be debatable. The typical GUI wizard does engage in some sort of dialog, but it includes very few of the common dialog system components, and dialog state is trivial. There are many different architectures for dialog systems. What sets of components are included in a dialog system, and how those components divide up responsibilities differs from system to system. Principal to any dialog system is the dialog manager, which is a component that manages the state of the dialog, and dialog strategy.One type of dialog systems is Inteligentné rečové komunikačné rozhranie (IRKR). IRKR mediate voice interaction between human and computer. It enables multi-user interaction in Slovak language to find information distributed in Internet or in database. IRKR is based on Galaxy Communicator infrastructure and HUB architecture. IRKR consist of HUB and five servers, which co-operate together - Audio Server, Automatic speech Recognize Server (ASR), Text to Speech Server (TTS), Dialog Manager (DM) and Information Server (IS).