Effective storage capacity of labeled graphs

Dana Angluin, James Aspnes, Rida Bazzi, Jiang Chen, David Eisenstat, Goran Konjevod

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We consider the question of how much information can be stored by labeling the vertices of a connected undirected graph G using a constant-size set of labels, when isomorphic labelings are not distinguishable. Specifically, we are interested in the effective capacity of members of some class of graphs, the number of states distinguishable by a Turing machine that uses the labeled graph itself in place of the usual linear tape. We show that the effective capacity is related to the information-theoretic capacity which we introduce in the paper. It equals the information-theoretic capacity of the graph up to constant factors for trees, random graphs with polynomial edge probabilities, and bounded-degree graphs.

Original languageEnglish (US)
Pages (from-to)44-56
Number of pages13
JournalInformation and Computation
StatePublished - Feb 2014

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Computer Science Applications
  • Computational Theory and Mathematics


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