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Sparse distributed representations and witness complexes

Sparse distributed representations and witness complexes

February 22, 2016 · by Mirko · in Code, Cortical learning algorithms, Sparse Distributed Representations, Spatial Pooling

A PDF version of this post can be found here. Quite a while ago I stumbled over the white paper [3] of a science startup called Numenta. At the core of the paper lies the model of a sequence memory that enables…

Mapper Python Implementation

Mapper Python Implementation

February 22, 2015 · by Mirko · in Cluster algorithms, Code, Data analysis, Python, Topological data analysis, Visualization

A few posts ago I wrote about the mapper construction by Carlsson-Memoli-Singh and want to follow up on that a little. I wrote a straightforward implementation of the construction in Python. It can be found here: github.com/mirkoklukas/tda-mapper-py.

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