A series of important applications of combinatorics on words has emerged with the development of computerized text and string processing, especially in biology and in linguistics. The aim of this volume is to present, in a unified treatment, some of the major fields of applications. The main topics that are covered in this book are

1. Algorithms for manipulating text, such as string searching, pattern matching, and testing a word for special properties.

2. Efficient data structures for retrieving information on large indexes, including suffix trees and suffix automata.

3. Combinatorial, probabilistic, and statistical properties of patterns in finite words, and more general pattern, under various assumptions on the sources of the text.

4. Inference of regular expressions.

5. Algorithms for repetitions in strings, such as maximal run or tandem repeats.

6. Linguistic text processing, especially analysis of the syntactic and semantic structure of natural language. Applications to language processing with large dictionaries.

7. Enumeration, generation, and sampling of complex combinatorial structures by their encodings in words.

This book is actually the third of a series of books on combinatorics on words. Lothaire's “Combinatorics on Words” appeared in its first printing in 1984 as Volume 17 of the Encyclopedia of Mathematics. It was based on the impulse of M. P. Schützenberger's scientific work. Since then, the theory developed to a large scientific domain. It was reprinted in 1997 in the Cambridge Mathematical Library.