Papers about Action tendency

The paper contributes to the development of the theory of AI-Completeness. The intended goalis to provide a classification of problems in the field of Artificial Intelligence with respect to theirsolvability. We prove Turing Test to be an instance of an AI-Complete problem and further show certainAI applications to be AI-Complete or AI-Hard by utilizing polynomial time reductions. Finally, the papersuggests some directions for future work on the theory of AI-Completeness. Read more

A great challenge that is to be faced in the design of virtual agents is the issue of credibility, not only in the agent's aspect but also in its behavior. To be believable, the agent has to decide what to do next according to the internal and external variables of the agent. Besides others, we have to deal with the problem of action selection which can be resumed to choose the most appropriate action among... Read more

Several challenges remain in the effort to build software capable of conducting realtime dialogue with people. Part of the problem has been a lack of realtime flexibility, especially with regards to turntaking. We have built a system that can adapt its turntaking behavior in natural dialogue, learning to minimize unwanted interruptions and "awkward silences". The system learns this dynamically during the interaction in less than 30 turns, without special training sessions. Here we describe the... Read more

Computational modeling of emotion, physiology and personality is a major challenge in order to design believable virtual humans. These factors have an impact on both the individual behavior and the collective one. This requires to take into account the empathy phenomenon. Furthermore, in a crisis simulation context where the virtual humans can be contaminated by radiological or chemical substances, empathy may lead to placebo or nocebo effects. Stemming from works in the multi-agent systems domain, our... Read more

DEIRA is a virtual agent commenting on virtual horse races in real time. DEIRA analyses the state of the race, acts emotionally and comments about the situation in a believable and engaging way, using synthesized speech and facial expressions. In this paper we discuss the challenges, explain the computational models for the cognitive, emotional and communicative behavior, and account on implementation and feedback from users. Read more

A chatbot is a software system, which can interact or “chat” with a human user in natural language such as English. For the annual Loebner Prize contest, rival chatbots have been assessed in terms of ability to fool a judge in a restricted chat session. We are investigating methods to train and adapt a chatbot to a specific user’s language use or application, via a usersupplied training corpus. We advocate open-ended trials by real users,... Read more

Chatterbots are computer programs that simulate intelligent conversation. They are situated between games and toys, as their aim is mostly to be entertaining, but the user doesn't have to follow precise rules when playing with the program. Currently business and educational applications have started to emerge as a further development of the idea of intelligent dialog. For the game industry, they come close to the concept of NPC, or Non-Player Character, and they may become... Read more

This final evaluation report describes evaluation studies that have been carried out on various aspects of embodied agents. Read more

How do we decide how to represent an intelligent system in its interface, and how do we decide how the interface represents information about the world and about its own workings to a user? This article addresses these questions by examining the interaction between representation and intelligence in user interfaces. The rubric “representation” covers at least three topics in this context: how a computational system is represented in its user interface, how the interface conveys its representations... Read more