Modeling Human Knowledge of Routes: Partial Knowledge and Individual Variation

Benjamin Kuipers

Commonsense knowledge of large-scale space (the cognitive map) includes several different types of knowledge: of sensorimotor, topological, and metrical spatial relationships. Sensorimotor knowledge is defined as that knowledge which is necessary to reconstruct a route from memory after travel along that route in a large-scale environment. A representation for route knowledge is proposed with sufficiently robust performance properties to be useful as commonsense knowledge. Its states of partial knowledge are shown to correspond to those observed in humans. We also define and explore the space of all possible variants of this representation, to derive empirical predictions about the nature of individual variation.

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