作者nick731011 (nick)
看板Likihon_LAB
標題[問題] 想請教有關coding問題
時間Wed May 7 20:17:14 2008
considering an M-ary source,please prove that the maximun entropy is hold
when the distribution of probabilities Pa is uniformly distributed,
i.e.Pi=1/M
M-1
E(x)= Σ Pi log(1/Pi) <------log底為2
i=0
prove:when Pi=1/M
E(x) is Max
會的請幫忙吧!!感恩嘿!!
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推 init:用Lagrange Multiplier可證出各Pi相等 再帶入總和為1的條件 05/08 13:43
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