clarifications - Artificial Intelligence: A New Synthesis...

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Artificial Intelligence: A New Synthesis Nils J. Nilsson Some Clarifications October 17, 2001 Subsequent editions of the book may include some of the following clarifications 1. The “no-tight-space” condition mentioned on page 21 of the text is ambiguous. Intuitively, the condition attempts to rule out configurations, such as the ones shown below, in which the robot would be confused about which boundary to follow: Since there are many such confusing configurations, the condition is difficult to state succinctly. But note that the robot perceives the world only through the values of the features x 1 , x 2 , x 3 , and x 4 , defined on page 24. Thus it suffices to define the no-tight-space condition in terms of those features alone. First, I define the conditions diagrammatically as follows. We rule out any configurations in which each of the sets of cells marked by ellipses in the diagrams below have one or more cells occupied and in which the other cells are empty. That is, we rule out any configurations for which the
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This note was uploaded on 09/17/2009 for the course EEL 5840 taught by Professor Arroyo during the Fall '08 term at University of Florida.

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clarifications - Artificial Intelligence: A New Synthesis...

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