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CompPerspectiveNavPart1

CompPerspectiveNavPart1 - Where are we A Computational...

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1 A Computational Perspective on Navigation Where are we? On earth In California La Jolla Pepper Canyon Hall 109 at UCSD Between the parking office and Vis Arts Marr’s three descriptions for every intelligent system • Computational • Representational/algorithmic • Implementational Constraints A constraint excludes some possibilities in a range of possibilities. A particular constraint may leave many possibilities in play. Constraints can be combined to restrict the range of possibilities in play. Sometimes it is possible to combine constraints in a way that leaves only a single possibility. Line of Position Arc of Position
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2 Combining one-dimensional Constraints Position/Displacement Constraint Distance, Rate, and Time Constraint Circle of 360 degrees
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3 Where are we? Pepper Canyon Hall 106 at UCSD. – Latitude 32° 52’ 39.56” N – Longitude 117° 14’ 13.79” W GPS uses these constraints Speed of light Marr’s three descriptions for every
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