Use the graph of Example to determinea. whether Sports

Problem 10E Chapter 10.1

Discrete Mathematics with Applications | 4th Edition

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Problem 10E

Use the graph of Example to determinea. whether Sports Illustrated contains printed writing;________________b. whether Poetry Magazine contains long words.ExampleUsing a Graph to Represent Knowledge In many applications of artifical intelligence, a knowledge base of information is collected and represented inside a computer. Because of the way the knowledge is represented and because of the properties that govern the artificial intelligence program, the computer is not limited to retrieving data in the same form as it was entered; it can also derive new facts from the knowledge base by using certain built-in rules of inference. For example, from the knowledge that the Los Angeles Times is a big-city daily and that a big-city daily contains national news, an artifical intelligence program could infer that the Los Angeles Times contains national news. The directed graph shown in Figure is a pictorial representation for a simplified knowledge base about periodical publications.According to this knowledge base, what paper finish does the New York Times use?Figure Solution The arrow going from New York Times to big-city daily (labeled “instance-of”) shows that the New York Times is a big-city daily. The arrow going from big-city daily to newspaper (labeled “is-a”) shows that a big-city daily is a newspaper. The arrow going from newspaper to matte (labeled “paper-finish”) indicates that the paper finish on a newspaper is matte. Hence it can be inferred that the paper finish on the New York Times is matte.

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