Wong and Poon (1989) showed that Chow and Liu's tree dependence approximation can be derived by minimizing an upper bound of the Bayes error rate. Wong and Poon's result was obtained by expanding the conditional entropy H(omega|X). We derive the correct expansion of H(omega|X) and present its implication.
Published in:
Pattern Analysis and Machine Intelligence, IEEE Transactions on
(Volume:29
,
Issue:
10
)
Date of Publication: Oct. 2007