this paper investigates learner-initiated responses to english language teachers’ referential questions and learner initiatives after teachers’ feedback moves in meaning-focused question-answer sequences to analyze how interactional practices of language teachers, their initiation and feedback moves, facilitate learner initiatives. classroom discourse research has largely neglected learner init...

In this paper, we develop an autonomous construction system in which a self-contained ground robot builds a protective barrier by means of deformable pockets (i.e., filled bags). We present a stochastic control algorithm based on two biological mechanisms (stigmergy and templates) that takes advantage of deformable pockets for autonomous construction. The control algorithm guides the robot to b...

This paper focuses on a critical component of the situational awareness (SA), the neural control of autonomous constant depth flight of an autonomous underwater vehicle (AUV). Autonomous constant depth flight is a challenging but important task for AUVs to achieve high level of autonomy under adverse conditions. The fundamental requirement for constant depth flight is the knowledge of the depth...

We present an intelligent driving software system that is capable of adapting to dynamic task conditions and adjusting to the steering preferences of a human passenger. This interactive autonomous system is a realization of a natural human-robot interaction paradigm known as Adaptation from Participation (AfP). AfP exploits intermittent input from the human passenger in order to adapt the vehic...

The application of robotics and autonomous systems in space has increased dramatically. The ongoing Mars rover mission involving the Curiosity rover, along with the success of its predecessors, is a key milestone that showcases the existing capabilities of robotic technology. Nevertheless, there has still been a heavy reliance on human tele-operators to drive these systems. Reducing the relianc...

Achieving human-robot cooperation in a telerobotics system is the focus of this paper. The implementation of human-robot systems can be extremely challenging when the robot is not directly controlled by the human. The interaction mode, depending on the task context, can be continuous manual, semi-autonomous or autonomous. To address the Human-Robot Interaction (HRI) issues in such a system, a c...

This study presents a novel model that integrates agent negotiation into constructive learning for enhancing interaction efficiency between learner and instructor and promoting learning motivation. A constraint-based agent negotiation mechanism is employed to support a web-based learning environment in which instructor can perceive learners’ feedback and receive suggestion about pedagogical str...