Development of compositional and contextual communicable congruence in robots by using dynamic neural network models

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The current study presents neurorobotics experiments on acquisition of skills for "communicable congruence" with human via learning. A dynamic neural network model which is characterized by its multiple timescale dynamics property was utilized as a neuromorphic model for controlling a humanoid robot. In the experimental task, the humanoid robot was trained to generate specific sequential movement patterns as responding to various sequences of imperative gesture patterns demonstrated by the human subjects by following predefined compositional semantic rules. The experimental results showed that (1) the adopted MTRNN can achieve generalization by learning in the lower feature perception level by using a limited set of tutoring patterns, (2) the MTRNN can learn to extract compositional semantic rules with generalization in its higher level characterized by slow timescale dynamics, (3) the MTRNN can develop another type of cognitive capability for controlling the internal contextual processes as situated to on-going task sequences without being provided with cues for explicitly indicating task segmentation points. The analysis on the dynamic property developed in the MTRNN via learning indicated that the aforementioned cognitive mechanisms were achieved by self-organization of adequate functional hierarchy by utilizing the constraint of the multiple timescale property and the topological connectivity imposed on the network configuration. These results of the current research could contribute to developments of socially intelligent robots endowed with cognitive communicative competency similar to that of human.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2015-12
Language
English
Article Type
Article
Keywords

AUTONOMOUS ROBOTS; COGNITIVE SCIENCE; MOBILE ROBOT; BOTTOM-UP; IMITATION; SELF; PERSPECTIVE; MECHANISMS; BEHAVIOR; SYSTEMS

Citation

NEURAL NETWORKS, v.72, pp.109 - 122

ISSN
0893-6080
DOI
10.1016/j.neunet.2015.09.004
URI
http://hdl.handle.net/10203/205700
Appears in Collection
EE-Journal Papers(저널논문)
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