منابع مشابه
A Suffix Tree Or Not a Suffix Tree?
In this paper we study the structure of suffix trees. Given an unlabeled tree τ on n nodes and suffix links of its internal nodes, we ask the question “Is τ a suffix tree?”, i.e., is there a string S whose suffix tree has the same topological structure as τ? We place no restrictions on S, in particular we do not require that S ends with a unique symbol. This corresponds to considering the more ...
متن کاملSuffix Tree
SYNONYMS Compact suffix trie DEFINITION The suffix tree S(y) of a non-empty string y of length n is a compact trie representing all the suffixes of the string. The suffix tree of y is defined by the following properties: All branches of S(y) are labeled by all suffixes of y. • • Edges of S(y) are labeled by strings. • Internal nodes of S(y) have at least two children. • Edges outgoing an intern...
متن کاملOn Suffix Tree Breadth
The suffix tree — the compacted trie of all the suffixes of a string — is the most important and widely-used data structure in string processing. We consider a natural combinatorial question about suffix trees: for a string S of length n, how many nodes νS(d) can there be at (string) depth d in its suffix tree? We prove ν(n, d) = maxS∈Σn νS(d) is O((n/d) logn), and show that this bound is almos...
متن کاملPractical Suffix Tree Construction
Large string datasets are common in a number of emerging text and biological database applications. Common queries over such datasets include both exact and approximate string matches. These queries can be evaluated very efficiently by using a suffix tree index on the string dataset. Although suffix trees can be constructed quickly in memory for small input datasets, constructing persistent tre...
متن کاملSemantic Suffix Tree Clustering
This paper proposes a new algorithm, called Semantic Suffix Tree Clustering (SSTC), to cluster web search results containing semantic similarities. The distinctive methodology of the SSTC algorithm is that it simultaneously constructs the semantic suffix tree through an on-depth and on-breadth pass by using semantic similarity and string matching. The semantic similarity is derived from the Wor...
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ژورنال
عنوان ژورنال: Journal of Discrete Algorithms
سال: 2015
ISSN: 1570-8667
DOI: 10.1016/j.jda.2015.01.005