国家重点实验室
一、平均代价的概念和贝叶斯准则C = P (H 0 ) c00 ∫ p (x H 0 )dx + c10 1 ∫ p (x H 0 )dx R0 R0 + P(H1 ) c01 ∫ p (x H1 )dx + c11 1 ∫ p (x H1 )dx R0 R0 合并C = P(H 0 ) c10 + c00 ∫ p(x H 0 )dx c10 ∫ p (x H 0 )dx(1) R0 R0 + P(H1 ) c11 + c01 ∫ p (x H1 )dx c11 ∫ p (x H1 )dx R0 R0
3. 平均代价取到最小值的条件
合并
C = c10 P(H 0 ) + c11 P(H1 ) + ∫ [P (H1 )(c01 c11 ) p (x H1 ) P(H 0 )(c10 c00 ) p (x H 0 )]dx R 0