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Quotient Space Based Problem Solving by Bo Zhang, Ling Zhang

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1.2. World Representations at Different Granularities

1.2.1. The Model of Different Grain-Size Worlds

From the above discussion, it seems important to develop a new theory and technique which will in some way enable computers to represent the world at different granularities.
Suppose that a problem-solving space, or a problem space for short, is described by a triplet image.
X denotes the problem domain, or universe. In the preceding example, when drafting a production plan, the factory as a whole is the domain in question.
image indicates the attributes of domain ...

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