问题
If PCFG is like,
NP -> ADJ N [0.6]
NP -> N [0.4]
N -> cat [0.2]
N -> dog [0.8]
What will be CNF form? Will it be the following?
NP -> ADJ NP [0.6]
NP -> cat [0.08]
NP -> dog [0.32]
or somethings else?
回答1:
NP -> ADJ NP [0.6]
NP -> cat [0.08]
NP -> dog [0.32]
Your answer is correct because you need to get the same probability for the result by applying both the original and the converted set of rules (in CNF).
来源：https://stackoverflow.com/questions/39769119/what-will-be-cnf-form-of-this-probabilistic-grammar