The suffix tree of string w represents all suffixes of w, and thus it supports full indexing of w for exact pattern matching. On the other hand, a sparse suffix tree of w represents only a subset of the suffixes of w, and therefore it supports sparse indexing of w. There has been a wide range of applications of sparse suffix trees, e.g., natural language processing and biological sequence analy...

Suffix trees are the key data structure for text string matching, and are used in wide application areas such as bioinformatics and data compression. Sparse suffix trees are kind of suffix trees that represent only a subset of suffixes of the input string. In this paper we study word suffix trees, which are one variation of sparse suffix trees. Let D be a dictionary of words and w be a string i...

Suffix trees have been the focus of significant research interest as they permit very efficient solutions to a range of string and sequence searching problems. Given a suffix tree that encodes a particular string, it is possible to solve problems such as searching for a specific pattern in time proportional to the length of the pattern rather than the length of the string. Suffix trees can also...

Suffix trees have been the focus of significant research interest as they permit very efficient solutions to a range of string and sequence searching problems. Given a suffix tree that encodes a particular string, it is possible to solve problems such as searching for a specific pattern in time proportional to the length of the pattern rather than the length of the string. Suffix trees can also...

We describe an efficient implementation of a text mining algorithm for discovering a class of simple string patterns. With an index structure, called the virtual suffix tree, for pattern discovery built on the top of the suffix array, the resulting algorithm is simple and fast in practice compared with the previous implementation with the suffix tree.