The following powerpoint presents a small introduction to sparse representation and dictionary learning as well as some awesome examples found on the internet.

PowerPoint Presentation

[embeddoc url=”; viewer=”google”]

## L-Norms as Loss Function

In linear algebra, functional analysis, and related areas of mathematics, a norm (l-norms) is a function that assigns a strictly positive length or size to each vector in a vector space—save for the zero vector, which is assigned a length of zero. A seminorm, on the other hand, is allowed to assign zero length to some non-zero vectors (in addition to the zero vector). L1-Norm loss function is...