Binomial Distribution, Mixture Models, Em Algorithm, Bioinformatics.
m-th type of coins. {θ_m | m=1,2,…,K}: the probability of getting head when flipping a coin of the m-th type. {P(zᵢ=m|nᵢ, Θ) | m=1,..,K; i=1,…,S}: the probability that the coin picked in the i-th experiment belongs to the m-th type of coins, given the outcome of the i-th experiment, (nᵢ, Nᵢ).