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We discuss an intrinsic generalization of the suffix tree, designed to index a string of length n which has a natural partitioning into m multi-character substrings or words. This word suffix tree represents only the m suffixes that start at word boundaries. These boundaries are determined by delimiters, whose definition depends on the application. Since traditional suffix tree construction algorithms...
We consider compression of unordered sets of distinct elements, focusing particularly on compressing sets of fixed-length bit strings in the presence of statistical information. We address previous work, and outline a novel compression algorithm that allows transparent incorporation of various estimates for probability distribution. Experiments allow the conclusion that set compression can benefit...
We propose a fast and memory-efficient algorithm for lexicographically sorting the suffixes of a string, a problem that has important applications in data compression as well as string matching.Our algorithm eliminates much of the overhead of previous specialized approaches while maintaining their robustness for degenerate inputs. For input size n, our algorithm operates in only two integer arrays...
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