15.3 Classical ML: What it does (2)
- All ML algorithms/models: Automatically find transformations that turn data into more-useful representations for a given task (e.g., coordinate changes or linear projections)
- ML (technically): searching for useful representations of some input data, within a predefined space of possibilities, using guidance from a feedback signal
- Classic ML algorithms (e.g., logistic regression): usually not creative in finding transformations; they just search through predefined set of operations, called a hypothesis space
- So what is deep learning? Why is it special?6
Chollet, Francois, and J J Allaire. 2018. Deep Learning with R. 1st ed. Manning Publications.