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  Discovering all most specific sentences by randomized algorithms

Gunopulos, D., Mannila, H., & Saluja, S.(1996). Discovering all most specific sentences by randomized algorithms (MPI-I-1996-1-023). Saarbrücken: Max-Planck-Institut für Informatik.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0014-A109-B Version Permalink: https://hdl.handle.net/21.11116/0000-0001-732D-C
Genre: Report

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 Creators:
Gunopulos, Dimitrios1, Author           
Mannila, Heikki1, Author           
Saluja, Sanjeev1, Author           
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1Algorithms and Complexity, MPI for Informatics, Max Planck Society, ou_24019              

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 Abstract: Data mining can in many instances be viewed as the task of computing a representation of a theory of a model or of a database. In this paper we present a randomized algorithm that can be used to compute the representation of a theory in terms of the most specific sentences of that theory. In addition to randomization, the algorithm uses a generalization of the concept of hypergraph transversals. We apply the general algorithm in two ways, for the problem of discovering maximal frequent sets in 0/1 data, and for computing minimal keys in relations. We present some empirical results on the performance of these methods on real data. We also show some complexity theoretic evidence of the hardness of these problems.

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Language(s): eng - English
 Dates: 1996
 Publication Status: Issued
 Pages: 23 p.
 Publishing info: Saarbrücken : Max-Planck-Institut für Informatik
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 Identifiers: Report Nr.: MPI-I-1996-1-023
BibTex Citekey: GunopulosMannilaSaluja96
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Title: Research Report / Max-Planck-Institut für Informatik
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