A semantic network is often used as a form of knowledge representation. It consists of vertices which represent concepts and edges which represent relations between the concepts. A semantic net is a Directed graph.
Important semantic relations:
- Hyponymy (or Troponymy) (A is subordinate of B; A is kind of B)
- Hyperonymy (A is superordinate of B)
The link and lexical structure of the Wikipedia might also be regarded as a simple example of a semantic network, with the following properties:
- article A is linked to by article B
- the name of article A is used in the Wikipedia entry for B