6 Relation of the model to some other formalisations

6.1 Semantic networks

The enhanced network model described is strictly as powerful as a normal semantic network. In fact a semantic network can be seen as a special case where all contextual nodes are not involved in inference relations but act as a typing mechanism on the relations between labels (as illustrated in figure 4). The is-a relation can be seen as the untyped relations. Here each relation is typed by at most one contextual node. Here tweety is-a bird, a bird is-a animal, bird has-property fly and bird has-property walk.

Figure 4: Implementing a semantic network with typed relations

A Simple-Minded Network Model with Context-like Objects - Bruce Edmonds - 13 FEB 97

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