Introducing a Multi-target regression

In this review, I will review a well-known paper called Multi-target regression via input space expansion: treating targets as inputs [1]. Note that I am introducing Grigorios Tsoumakas, et al work, and they wrote the paper. This review is simply an introduction and summary of their original work. I will try to explain this paper simply with related examples. MTR or Multi-output regression or Multivariate regression refers to the models that try to predict multivariate outputs with the related input data.