Version spaces and the consistency problem

  title={Version spaces and the consistency problem},
  author={Haym Hirsh and Nina Mishra and Leonard Pitt},
  journal={Artif. Intell.},
A version space is a collection of concepts consistent with a given set of positive and negative examples. Mitchell [Artificial Intelligence 18 (1982) 203–226] proposed representing a version space by its boundary sets: the maximally general (G) and maximally specific consistent concepts (S). For many simple concept classes, the size of G and S is known to grow exponentially in the number of positive and negative examples. This paper argues that previous work on alternative representations of… CONTINUE READING
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