among the most basic of machine learning algorithmsk-nearest neighbor is considered to be type of "lazy learningas generalization beyond the training data does not occur until query is made to the system decision tree learning for general usedecision trees are employed to visually represent decisions and show or inform decision making when working with machine learning and data miningdecision trees are used as predictive model these models map observations about data to conclusions about the data' target value the goal of decision tree learning is to create model that will predict