Average Running Time of the Boyer-Moore-Horspool Algorithm

نویسندگان

  • Ricardo A. Baeza-Yates
  • Mireille Régnier
چکیده

We study Boyer-Moore-type string searching algorithms. We analyze the Horspool’s variant. The searching time is linear. An exact expression of the linearity constant is derived and is proven to be asymptotically r. 1;~ d x < 2/(c + I), where c is the cardinality of the alphabet. We exhibit a stationary process and reduce the problem to a word enumeration problem. The same technique applies to other variants of the Boyer-Moore algorithm.

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عنوان ژورنال:
  • Theor. Comput. Sci.

دوره 92  شماره 

صفحات  -

تاریخ انتشار 1992