Learning a regular tree language from a teacher

  • Authors:
  • Frank Drewes;Johanna Högberg

  • Affiliations:
  • Department of Computing Science, Umeå University, Umeå, Sweden;Department of Computing Science, Umeå University, Umeå, Sweden

  • Venue:
  • DLT'03 Proceedings of the 7th international conference on Developments in language theory
  • Year:
  • 2003

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Abstract

We generalize an inference algorithm by Angluin, that learns a regular string language from a "minimally adequate teacher", to regular tree languages. This improves a similar algorithm proposed by Sakakibara. In particular, we show how our algorithm can be used to avoid dead states, thus answering a question by Sakakibara.