What is concept drift? In predictive analytics and machine learning,the concept drift means that the statistical properties of the target variable, which the model is trying to predict,change over time in unforeseen ways. In a word,the probability distribution changes. ·Change in P(c) ·Change in P(X) ·Change in P(ClX)What is concept drift？ In predictive analytics and machine learning, the concept drift means that the statistical properties of the target variable, which the model is trying to predict, change over time in unforeseen ways. In a word, the probability distribution changes. • Change in P(C) • Change in P(X) • Change in P(C|X)