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Artificial Intelligence




                    Notes          in the following Semantic net:
                                                   Figure 9.4:  A Semantic  Network for  a Default  Reasoning






















                                   In creating certain inferences we will also necessitate to differentiate between the link that defines a
                                   new entity and holds its value and the other type of link that associates two current entities. Consider the
                                   example displayed where the height of two people is portrayed and we also desire to contrast
                                   them.
                                   We require extra nodes for the notion in addition to its value.

                                                                Figure  9.5: Two  Heights











                                   Special procedures are required to process these nodes, but without this dissimilarity the analysis
                                   would be very restricted.

                                                          Figure 9.6: Comparison of  Two Heights
















                                   9.1.3 Extending Semantic Nets


                                   Here we will take into account some extensions to Semantic nets that conquer some problems or
                                   enlarge their appearance of knowledge.




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