Recursive functions of symbolic expressions and their computation by machine, Part I
Communications of the ACM
Towards an integrated robot with multiple cognitive functions
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
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A hierarchical representation of objects is dynamically generated from the input of a virtual vision system. It is used to analyze a sequence of actions and extract behavior rules that can be utilized by the inference machine CLIPS. The vision system is assumed to provide simplified positional and shape information about visible 3D silhouettes in a frame per frame basis. A virtual agent, attempts to keep track of every image, without any previous knowledge about the object it represents. The hierarchy is restructured as necessary, to include new perceived images, in such a way that it also reflects factual relationships amongst them. Modifications between consecutive frames are internally interpreted and represented as functions which take the original world description and transform it into the next frame. A partial order is defined while looking for the satisfaction of domain/codomain requirements in functions composition, thus leading to the CLIPS rules.