“Is It Within My Reach?” – An Agents Perspective
This paper investigates three levels of reaching actions for intelligent virtual agents: reach by hand, reach by body, and reach by move. ‘Reach by hand’ is discussed as a typical inverse kinematics problem which involves the arm joints. ‘Reach by body’ is examined as a decision-making problem for the involved joints. ‘Reach by move’ is investigated as a search problem with a set of rational postulates for modeling agent’s knowledge/beliefs to reach objects by moving. The paper also discusses how the approaches can be tested and implemented for a virtual agent platform which is based on the distributed logic programming language DLP and VRML/X3D, the standard Web3D technology.
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