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Modelling Embodied Appraisal in Humanoids: Grounding PAD space for Augmented Autonomy
Cognition & Interaction Lab, University of Skövde, Sweden.
Cognition & Interaction Lab, University of Skövde, Sweden.
Freiburg Institute for Advanced Studies, University of Freiburg, Germany.
Cognition & Interaction Lab, University of Skövde, Sweden.
2011 (English)In: Proceedings of the Workshop on Standards in Emotion Modeling, 2011, 2011Conference paper, Oral presentation only (Other academic)
Abstract [en]

A computational emotion architecture is presented which grounds an aspect of an appraisal theoretic architecture in energy related processes. The incorporation of an energy constraint on emotional-cognitive behaviour allows greater potential for autonomous agency when implemented on a physical (NAO) robot platform. In this paper we present an algorithm that enables metabolic grounding of the arousal component of the PAD emotion space used in the architecture. We describe an exemplar problem that abstracts variables and performance criteria relevant to service robotics applications. Future work on further integration based on neurobiological grounding is discussed as well as means by which the exemplar scenario may be scaled up to more realistic service robotics based scenarios.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Appraisal theory, homeostasis, autonomy, emotions, humanoids, robots, WASABI, virtual agents
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-105948OAI: oai:DiVA.org:liu-105948DiVA: diva2:712580
Conference
1st Workshop on Standards in Emotion Modeling 2011, 15-19 August, Leiden, The Netherlands
Available from: 2014-04-15 Created: 2014-04-15 Last updated: 2014-04-22Bibliographically approved
In thesis
1. Grounding Emotion Appraisal in Autonomous Humanoids
Open this publication in new window or tab >>Grounding Emotion Appraisal in Autonomous Humanoids
2014 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The work presented in this dissertation investigates the problem for resource management of autonomous robots. Acting under the constraint of limited resources is a necessity for every robot which should perform tasks independent of human control. Some of the most important variables and performance criteria for adaptive behavior under resource constraints are discussed. Concepts like autonomy, self-sufficiency, energy dynamics, work utility, effort of action, and optimal task selection are defined and analyzed as the emphasis is on the resource balance in interaction with a human. The primary resource for every robot is its energy. In addition to the regulation of its “energy homeostasis”, a robot should perform its designer’s tasks with the required level of efficiency. A service robot residing in a human-centered environment should perform some social tasks like cleaning, helping elderly people or delivering goods. Maintaining a proper quality of work and, at the same time, not running out of energy represents a basic two-resource problem which was used as a test-bed scenario in the thesis. Safety is an important aspect of any human-robot interaction. Thus, a new three – resource problem (energy, work quality, safety) is presented and also used for the experimental investigations in the thesis.

The main contribution of the thesis is developing an affective cognitive architecture. The architecture uses top-down ethological models of action selection. The action selection mechanisms are nested into a model of human affect based on appraisal theory of emotion. The arousal component of the architecture is grounded into electrical energy processes in the robotic body and is modulating the effort of movement. The provided arousal mechanism has an important functional role for the adaptability of the robot in the proposed two- and three resource scenarios. These investigations are part of a more general goal of grounding highlevel emotion substrates - Pleasure Arousal Dominance emotion space in homeostatic processes in humanoid robots. The development of the architecture took inspiration from several computation architectures of emotion in robotics, which are analyzed in the thesis.

Sustainability of the basic cycles of the essential variables of a robotic system is chosen as a basic performance measure for validating the emotion components of the architecture and the grounding process. Several experiments are performed with two humanoid robots – iCub and NAO showing the role of task selection mechanism and arousal component of the architecture for the robot’s self-sufficiency and adaptability.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2014. 36 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1657
National Category
Computer and Information Science Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-105344 (URN)10.3384/lic.diva-105344 (DOI)978-91-7519-336-6 (ISBN)
Presentation
2014-05-14, Alan Turing, hus E, Campus Valla, Linköpings universitet, Linköping, 13:15 (English)
Opponent
Supervisors
Funder
EU, FP7, Seventh Framework Programme, G.A. 235065
Available from: 2014-04-15 Created: 2014-03-18 Last updated: 2014-04-16Bibliographically approved

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Kiryazov, Kiril

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