A Note on Edge-based Graph Partitioning and its Linear Algebraic Structure

  • Authors:
  • Yourim Yoon;Yong-Hyuk Kim;Byung-Ro Moon

  • Affiliations:
  • School of Computer Science & Engineering, Seoul National University, Seoul, Korea 151-744;Department of Computer Science & Engineering, Kwangwoon University, Seoul, Korea 139-701;School of Computer Science & Engineering, Seoul National University, Seoul, Korea 151-744

  • Venue:
  • Journal of Mathematical Modelling and Algorithms
  • Year:
  • 2011

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Abstract

We analyze two essential problems arising from edge-based graph partitioning. We show that one of them is an NP-hard problem but the other is in P, presenting a novel methodology that links linear algebra theory to the graph problems as a part of proving the facts. This is a significant trial in that linear algebra, which has been mostly adopted as a theoretical analysis tool, is practically applied to solving actual graph problems. As a result of the linear algebraic manipulation, we could devise a linear-time algorithm for the problem in P.