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An abstraction architecture for cognitive agents

Objective

The project will develop and validate a conceptual architecture for Cognitive Agents. The architecture will integrate the cycle of perception-knowledge acquisition-abstraction-reasoning-action generation. Special focus will be given in the abstraction architecture. The concept system is the representation of the knowledge that the agent possesses for its environment and itself. Objects, relations, goals, context information, and solution strategies are considered as knowledge about a situation. The abstraction mechanism is responsible for creating and organising a hierarchy of concepts while the reasoning process operates on the concept system in order to make inferences for virtual actions and select the one that will realise.

The architecture will include attention control as a means of handling complexity, prioritising responses, detecting novelty and creating new goals. Both sensory and motor attention will exist. A goals-oriented computational model will fuse together user tasks with tasks originated from the agent. A goals generation system will enable the agent to produce its own goals. Reinforcement learning will provide the means by which the agent learns solution strategies for the satisfaction of a goal. The loop closes by having new actions modifying the current knowledge through perception. The architecture will be implemented in a robotics application, namely of robot navigation in an arbitrary outdoors environment but it will be in no way specific to this domain.

Major requirements include survival, fast response and user-goal satisfaction. The robotic agent will learn about its own environment before becoming able to satisfy successfully any user goal. The process of retraining prior to becoming service-able will be re-iterated in any new environment. A number of different outdoors environments will be used for testing purposes. The evaluation process will examine the generality, performance, accuracy, scalability and robustness of the architecture.

Funding Scheme

STREP - Specific Targeted Research Project

Coordinator

KING'S COLLEGE LONDON
Address
Strand
WC2R 2LS London
United Kingdom

Participants (4)

EBERHARD KARLS UNIVERSITAET TUEBINGEN
Germany
Address
Wilhelmstrasse 7
72074 Tuebingen
FOUNDATION FOR RESEARCH AND TECHNOLOGY HELLAS
Greece
Address
Vassilika Vouton
17671 Iraklio, Crete
UNIVERSITA DEGLI STUDI DI GENOVA
Italy
Address
Via Balbi 5
16126 Genova
ZENON S.A. ROBOTICS AND INFORMATICS
Greece
Address
Kanari Street 5, Glyka Nera Attikis
15354 Athens