Em Algorithm, Statistics, Machine Learning, Clustering Algorithm, Python.
tighter this lower bound to the value of log(x;𝜽), the parameter 𝜽 will better fit the data. But, when does formula (5) take the lower bound? In other words, when does formula (4) and (5) take the same value? The answer is when a random variable X takes a constant. To derive it, let c be a constant