Category: Uncategorized
#Uncategorized
Closing in on the goal of integrating J. Mairal’s dictionary learning in the scikit, I stitched together a couple of examples.
The code is not yet integrated according to our standards, but here is the kind of results you can expect.
Here is how a dictionary obtained from 8x8 …
Category: scikit-learn
#gsoc #Uncategorized
After a little busy while, I have graduated and entered the summer vacation, which means time for serious GSoC work.
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So we had a little conference in order to discuss what will be done and when. We gathered quite a few code snippets since the official start of the project …
Category: scikit-learn
#Uncategorized #dictionary learning #omp #orthogonal matching pursuit
I am working on implementing the Orthogonal Matching Pursuit (OMP) algorithm for the scikit. It is an elegant algorithm (that almost writes itself in Numpy!) to compute a greedy approximation to the solution of a sparse coding problem:
$$ \text{argmin} \big|\big|\gamma\big|\big|_0 \text{ subject to }\big …