Recently had a dispute with a head of the research group I’m working in about terminology. The chief claimed that Time Series Analysis (TSA) is a separate field of study which does apply Machine Learning techniques for it’s problems (NN and so on). While I tried to convince my chief that Machine Learning is a wide term, which is used for a group of different fields of science: NN, TSA, Statistics etc. Was I correct? Or am I mistaken? The discussion was in a context of writing an article so the terminology did matter.