Computer Science: An Overview: Global Edition (12th Edition)

Published by Pearson Higher Education
ISBN 10: 1292061162
ISBN 13: 978-1-29206-116-0

Chapter 12 - Theory of Computation - Chapter Review Problems - Page 570: 12

Answer

Probabilistic Context-Free Grammar (PCFG)

Work Step by Step

One example of a non-deterministic language is **Probabilistic Context-Free Grammar (PCFG)**. In PCFG, the production rules have associated probabilities, indicating the likelihood of each rule being chosen during the parsing process. This means that for a given input string, there may be multiple possible parse trees, and the choice between them is influenced by the probabilities assigned to the production rules. Thus, the language generated by a PCFG is non-deterministic, as it allows for multiple valid interpretations of the same input.
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