A weighted spectrum metric for comparison of Internet topologies

Damien Fay, Hamed Haddadi, Andrew W. Moore, Richard Mortier, Steve Uhlig, Almerima Jamakovic

Research output: Contribution to journalConference article

2 Citations (Scopus)


Comparison of graph structures is a frequently encountered problem across a number of problem domains. Comparing graphs requires a metric to discriminate which features of the graphs are considered important. The spectrum of a graph is often claimed to contain all the information within a graph, but the raw spectrum contains too much information to be directly used as a useful metric. In this paper we introduce a metric, the weighted spectral distribution, that improves on the raw spectrum by discounting those eigenvalues believed to be unimportant and emphasizing the contribution of those believed to be important. We use this metric to optimize the selection of parameter values for generating Internet topologies. Our metric leads to parameter choices that appear sensible given prior knowledge of the problem domain: the resulting choices are close to the default values of the topology generators and, in the case of some generators, fall within the expected region. This metric provides a means for meaningfully optimizing parameter selection when generating topologies intended to share structure with, but not match exactly, measured graphs.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalPerformance Evaluation Review
Issue number3
Publication statusPublished - 6 Aug 2010
Event2nd Workshop on Hot Topics in Measurement and Modeling of Computer Systems, HotMetrics 2009 - Seattle, WA, United States
Duration: 19 Jun 200919 Jun 2009



  • Degree-based generators
  • Graph metrics
  • Internet topology
  • Topology generation

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

Fay, D., Haddadi, H., Moore, A. W., Mortier, R., Uhlig, S., & Jamakovic, A. (2010). A weighted spectrum metric for comparison of Internet topologies. Performance Evaluation Review, 37(3), 67-72. https://doi.org/10.1145/1710115.1710129