From Animals to Animats 4: Proceedings of the Fourth International Conference on Simulation of Adaptive Behavior (SAB96), pp. 285-
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چکیده
Instrumental (or operant) conditioning, a form of animal learning, is similar to reinforcement learning in that it allows an agent to adapt its actions to gain maximally from the environment while only being rewarded for correct performance. But animals learn much more complicated behaviors through instrumental conditioning than robots presently acquire through reinforcement learning. We describe a new computational model of the conditioning process; our discussion focuses on a training technique called chaining. Four aspects of our model distinguishit from simple reinforcement learning: conditional reinforcers, shifting reinforcement contingencies, explicit action sequencing, and state space refinement. We apply our model to a task commonly used to study working memory in rats and monkeys: the DMTS (Delayed Match to Sample) task. Animals learn this task in stages. Our model also acquires the task in stages, in a similar manner. We have also used our learning program to control a B21 robot.
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تاریخ انتشار 1999