Efficient algorithms for document retrieval problems

  title={Efficient algorithms for document retrieval problems},
  author={S. Muthukrishnan},
We are given a collection D of text documents d1,…,dk, with ∑i = n, which may be preprocessed. In the document listing problem, we are given an online query comprising of a pattern string p of length m and our goal is to return the set of all documents that contain one or more copies of p. In the closely related occurrence listing problem, we output the set of all positions within the documents where pattern p occurs. In 1973, Weiner [24] presented an algorithm with O(n) time and space… CONTINUE READING
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