Free Unsupervised Machine Learning In Python: Master Data Science And Machine Learning With Cluster Analysis, Gaussian Mixture Models, And Principal Components Analysis Ebooks Online

                
              
Free 
Unsupervised Machine Learning In Python: Master Data Science And Machine Learning With Cluster Analysis, Gaussian Mixture Models, And Principal Components Analysis Ebooks Online
In a real-world environment, you can imagine that a robot or an artificial intelligence won’t always have access to the optimal answer, or maybe there isn’t an optimal correct answer. You’d want that robot to be able to explore the world on its own, and learn things just by looking for patterns.Think about the large amounts of data being collected today, by the likes of the NSA, Google, and other organizations. No human could possibly sift through all that data manually. It was reported recently in the Washington Post and Wall Street Journal that the National Security Agency collects so much surveillance data, it is no longer effective.Could automated pattern discovery solve this problem?Do you ever wonder how we get the data that we use in our supervised machine learning algorithms?Kaggle always seems to provide us with a nice CSV, complete with Xs and corresponding Ys.If you haven’t been involved in acquiring data yourself, you might not have thought about this, but someone has to make this data!A lot of the time this involves manual labor. Sometimes, you don’t have access to the correct information or it is infeasible or costly to acquire.You still want to have some idea of the structure of the data.This is where unsupervised machine learning comes into play.In this book we are first going to talk about clustering. This is where instead of training on labels, we try to create our own labels. We’ll do this by grouping together data that looks alike.The 2 methods of clustering we’ll talk about: k-means clustering and hierarchical clustering.Next, because in machine learning we like to talk about probability distributions, we’ll go into Gaussian mixture models and kernel density estimation, where we talk about how to learn the probability distribution of a set of data.One interesting fact is that under certain conditions, Gaussian mixture models and k-means clustering are exactly the same! We’ll prove how this is the case.Lastly, we’ll look at the theory behind principal components analysis or PCA. PCA has many useful applications: visualization, dimensionality reduction, denoising, and de-correlation. You will see how it allows us to take a different perspective on latent variables, which first appear when we talk about k-means clustering and GMMs.All the algorithms we’ll talk about in this course are staples in machine learning and data science, so if you want to know how to automatically find patterns in your data with data mining and pattern extraction, without needing someone to put in manual work to label that data, then this book is for you.All of the materials required to follow along in this book are free: You just need to able to download and install Python, Numpy, Scipy, Matplotlib, and Sci-kit Learn.
File Size: 551 KB
Print Length: 57 pages
Simultaneous Device Usage: Unlimited
Publication Date: May 22, 2016
Sold by:  Digital Services LLC
Language: English
ASIN: B01G1HH5T4
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Best Sellers Rank: #51,459 Paid in Kindle Store (See Top 100 Paid in Kindle Store)   #19 in Kindle Store > Kindle Short Reads > 90 minutes (44-64 pages) > Computers & Technology   #38 in Books > Computers & Technology > Computer Science > AI & Machine Learning > Intelligence & Semantics   #343 in Kindle Store > Kindle eBooks > Computers & Technology
I have implemented many unsupervised algorithm but this takes you in a different level
great
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