This paper presents two new corpus-based studies of feedback in the domain of teaching
Spanish as a foreign language, concentrating on the type and frequency of different …

Students rated 16 tutorial statements on negative politeness (ie, how much the tutor “allows
me freedom to make my own decisions”) and positive politeness (ie, how much the tutor was …

TuTalk supports the rapid development of dialogue agents for learning applications. It
enables an experimenter to create a dialogue agent with either minimal or no programming …

Given the growing complexity of tasks that spoken dialogue systems are trying to handle,
Reinforcement Learning (RL) has been increasingly used as a way of automatically learning …

Uno de los temas más investigados en el área de los Sistemas Tutoriales Inteligentes (STI)
ha sido la identificación e implementación de estrategias de feedback que faciliten el …

RESUMEN Un Sistema Tutorial Inteligente (STI) está basado en los desarrollos de la
Inteligencia Artificial, principalmente, en lo que compete a la utilización de técnicas de …

We describe a two-layer architecture for supporting semantic interpretation and domain
reasoning in dialogue systems. Building system that supports both semantic interpretation …

This paper aims to inform the design of feedback strategies in ITS for Foreign Language. We
explore empirical evidence about effectiveness of feedback strategies used in an …

To investigate whether more concise Natural Language feedback improves learning, we
developed two Natural Language generators (DIAG-NLP1 and DIAG-NLP2), to provide …

We describe a tutorial dialogue system under development that assists students in learning
how to differentiate equations. The system uses deep natural language understanding and …