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Next: Duncker's Fortress/Tumor Problem Up: Visual Analogy in Problem Previous: Algorithm

System: Galatea

Our hypothesis was that a visual representation language would be sufficient to describe domains such that analogical problem solving could take place. To test this hypothesis, we implemented the above ideas in a program called Galatea, and applied it to Duncker's fortress/tumor analogy.

Galatea's knowledge representation architecture consists of two kinds of propositions: 1. A statement of existence of a concept or relation and 2. The connection of two concepts or propositions with a relation.

Galatea takes as input a solved source problem, an unsolved target problem (both represented visually), an analogical mappings between the simages, and criteria for an adequate problem solution. When instructed to solve the target using the source, it analogically transfers the solution procedure. As can be seen in Figure 2, it outputs a series of simages for the target problem, and checks to see if the solution transferred indeed solves the problem constraints. The following section describes our results.



Subsections

Jim Davies 2001-05-23