The alleged opposition between dialogue games and plans and goals as approaches to the study of natural language dialogue is false; the two approaches are complementary. On the one hand, plans and goals may function as a semantics to interaction patterns studied as dialogue games. On the other hand, dialogue games are ‘compiled-out’ recipes for joint action. This claim is illustrated by a dialo...

By extracting spatial and temporal characteristics in one network, the two-stream ConvNets can achieve the state-ofthe-art performance in action recognition. However, such a framework typically suffers from the separately processing of spatial and temporal information between the two standalone streams and is hard to capture long-term temporal dependence of an action. More importantly, it is in...

Participation in interpersonal competitions, such as fencing or Japanese martial arts, requires players to make instantaneous decisions and execute appropriate motor behaviors in response to various situations. Such actions can be understood as complex phenomena emerging from simple principles. We examined the intentional switching dynamics associated with continuous movement during interperson...

This thesis investigates the design of adaptive utility maximizing software agents for competitive multi-agent settings. The focus is on evaluating the theoretical and empirical performance of Joint Action Learners (JALs) in settings modeled as stochastic games. JALs extend the well-studied Q-learning algorithm. A previously introduced JAL optimizes with respect to stationary or convergent oppo...

Recent studies have shown that spatial and feature-based attention can contribute to inducing a spatial compatibility effect in both the standard Simon task and the joint Simon task. Less work generally has been devoted to investigating how attention modulates spatial compatibility effects. In the present study, we aimed to explore whether indirectly manipulating the degree of attention necessa...

The discovery of mirror neurons (e.g., Gallese et al., 1996) has reignited interest in theories that postulate a tight functional link between perception and action. According to these theories, perception and action share a common representational code, with actions coded in terms of the distal perceptual effects that they produce (Prinz, 1997). Accordingly, action representations should be ac...

This paper investigates the challenges of inter-organizational cooperation, understood here as the fulfillment of joint tasks. The focus is on challenges or constraints influencing the quality of actions, the performance and, in consequence, the outcome of efforts for the organizations involved. Findings suggest shortcomings on the organizational and the individual level and in different domain...

We describe a model for task-driven, naturallanguage-based human-robot interaction where the roles of the two participants are fully interchangeable, both at the conversational level and at the task level. This model provides a general treatment of joint-action dialogue, and also allows models based on the analysis of human-human joint-action dialogues easily to be implemented and evaluated. I....