On information closures of exponential families: A counterexample

Imre Csiszár, František Matúš

Research output: Contribution to journalLetter

7 Citations (Scopus)


A closure of an exponential family in reversed information divergence may be neither reverse information-closed nor log-convex.

Original languageEnglish
Pages (from-to)922-924
Number of pages3
JournalIEEE Transactions on Information Theory
Issue number5
Publication statusPublished - May 1 2004


  • Exponential family
  • Information closure
  • Log-convexity

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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