Written language is one of our primary means for documenting our lives, achievements, and environment. Our capabilities to record, store and retrieve audio, still pictures, and video are undergoing a revolution and may support, supplement or even replace written documentation. This technology enables us to record information that would otherwise be lost, lower the cost of documentation and enha...

Given the state of the art of current language and speech technology, errors are unavoidable in present-day spoken dialogue systems. Therefore, one of the main concerns in dialogue design is how to decide whether or not the system has understood the user correctly. In human-human communication, dialogue participants are continuously sending and receiving signals on the status of the information...

The development of robots able to accept, via a friendly interface, instructions in terms of the concepts familiar to the human user remains a challenge. It is argued that designing and building such intelligent robots can be seen as the problem of integrating four main dimensions: human-robot communication, sensory motor skills and perception, decision-making capabilities and learning. Althoug...

This paper describes a CALL approach which integrates software for speaker independent continuous speech recognition with embodied virtual agents and virtual worlds to create an immersive environment in which learners can converse in the target language in contextualised scenarios. The result is a self-access learning package: SPELL (Spoken Electronic Language Learning). The SPELL system has be...

In this paper we describe the effectiveness of some linguistic features for detecting problems in spoken child-computer interactions. To this aim, we use an Automatic Speech Recognizer for generating the spoken word chain, and a word tokenizer for obtaining the lexical and stemming information. Automatic classification of each turn is eventually achieved by exploiting the frequencies of tokens’...

Spoken language dialogue is a powerful mode for human-robot interaction (HRI) in complex, dynamic environments. We describe extensions to an existing dialogue management system that enables activity-oriented interaction with multi-robot teams.

This paper presents a prototype of an interface system with an active human-like agent. In usual human communication, non-verbal expressions play important roles. They convey emotional information and control timing of interaction as well. This project attempts to introduce multi modality into computer-human interaction. Our human-like agent with its realistic facial expressions identifies the ...

A spoken dialogue system (SDS) is a specialised form of computer system that operates as an interface between users and the application, using spoken natural language as the primary means of communication. The motivation for spoken interaction with such systems is that it allows for a natural and efficient means of communication. It is for this reason that the use of an SDS has been considered ...

In this paper, we introduce a natural language interface for human-robot interaction (HRI) to develop building guidance robots. We have developed POSTECH Spoken Dialog System for Guidance Robots (POSSDS-GR). POSSDS-GR consists of automatic speech recognizer, spoken language understanding, dialog manager, natural language generator, and text-to-speech synthesizer. Each module is designed and imp...