https://willwhitney.com/representation-quality-and-the-complexity-of-learning.html
Will Whitney
Representation quality and the complexity of learning
“In the last few years, there’s been an explosion of work on learning good representations of data…. However, defining precisely what we mean by a good representation can be tricky. This has led to… each paper choosing its own measure or set of measures and a general sense that our evaluation methods aren’t very robust.”