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Constructing computer virus phylogenies

  • Leslie Ann Goldberg
  • Paul W. Goldberg
  • Cynthia A. Phillips
  • Gregory B. Sorkin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1075)

Abstract

There has been much recent algorithmic work on the problem of reconstructing the evolutionary history of biological species. Computer virus specialists are interested in finding the evolutionary history of computer viruses — a virus is often written using code fragments from one or more other viruses, which are its immediate ancestors. A phylogeny for a collection of computer viruses is a directed acyclic graph whose nodes are the viruses and whose edges map ancestors to descendants and satisfy the property that each code fragment is “invented” only once. To provide a simple explanation for the data, we consider the problem of constructing such a phylogeny with a minimum number of edges. This optimization problem is NP-hard, and we present positive and negative results for associated approximation problems. When tree solutions exist, they can be constructed and randomly sampled in polynomial time.

Keywords

Span Tree Greedy Algorithm Minimum Span Tree Directed Cycle Suffix Tree 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • Leslie Ann Goldberg
    • 1
  • Paul W. Goldberg
    • 2
  • Cynthia A. Phillips
    • 3
  • Gregory B. Sorkin
    • 4
  1. 1.University of WarwickCoventryUK
  2. 2.Aston UniversityAston TriangleUK
  3. 3.Sandia National LabsAlbuquerque
  4. 4.IBM T.J. Watson Research CenterYorktown Heights

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