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k_ambiguous_cfg (443B)

      1 # K ambiguous CFG
      2 
      3 A *k-ambiguous CFG* is a [CFG] where every [word] has at most k [parse_trees]
      4 
      5 Special cases:
      6 - k=1: [uCFGs]
      7 - k=2: [2_ambiguous_CFGs]
      8 
      9 It is an [open_problem] whether every k-ambiguous CFG can be written as a [language_union] of k [uCFGs], but within [bounded_CFGs] this is known to be true, cf [wich2005ambiguity] p181 point (iv).
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     11 Up: [k_ambiguous], [CFG]
     12 
     13 See also: [infinitely_ambiguous_CFG], [Degree_of_ambiguity_cfg]