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On The Convergence of Query-Bounded Computations and Logical Closure Properties of C.E. Sets.

Timothy H. McNicholl
Published in: J. Symb. Log. (2001)
Keyphrases
  • closure properties
  • query processing
  • database
  • query expansion
  • keywords
  • data sources
  • user queries
  • tree automata
  • lower bound
  • hidden markov models
  • np hard
  • dynamic programming
  • expressive power
  • query evaluation