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Python Machine Learning Cookbook
book

Python Machine Learning Cookbook

by Prateek Joshi, Vahid Mirjalili
June 2016
Beginner to intermediate
304 pages
6h 24m
English
Packt Publishing
Content preview from Python Machine Learning Cookbook

Building a Mean Shift clustering model

The Mean Shift is a powerful unsupervised learning algorithm that's used to cluster datapoints. It considers the distribution of datapoints as a probability-density function and tries to find the modes in the feature space. These modes are basically points corresponding to local maxima. The main advantage of Mean Shift algorithm is that we are not required to know the number of clusters beforehand.

Let's say that we have a set of input points, and we are trying to find clusters in them without knowing how many clusters we are looking for. Mean Shift algorithm considers these points to be sampled from a probability density function. If there are clusters in the datapoints, then they correspond to the peaks ...

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Publisher Resources

ISBN: 9781786464477