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Mastering Java Machine Learning

You're reading from   Mastering Java Machine Learning A Java developer's guide to implementing machine learning and big data architectures

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Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781785880513
Length 556 pages
Edition 1st Edition
Languages
Concepts
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Authors (2):
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Uday Kamath Uday Kamath
Author Profile Icon Uday Kamath
Uday Kamath
Krishna Choppella Krishna Choppella
Author Profile Icon Krishna Choppella
Krishna Choppella
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Table of Contents (13) Chapters Close

Preface 1. Machine Learning Review 2. Practical Approach to Real-World Supervised Learning FREE CHAPTER 3. Unsupervised Machine Learning Techniques 4. Semi-Supervised and Active Learning 5. Real-Time Stream Machine Learning 6. Probabilistic Graph Modeling 7. Deep Learning 8. Text Mining and Natural Language Processing 9. Big Data Machine Learning – The Final Frontier A. Linear Algebra B. Probability Index

Basic stream processing and computational techniques

We will now describe some basic computations that can be performed on the stream of data. If we must run summary operations such as aggregations or histograms with limits on memory and speed, we can be sure that some kind of trade-off will be needed. Two well-known types of approximations in these situations are:

  • ϵ Approximation: The computation is close to the exact value within the fraction ϵ of error.
  • (ϵ, δ) Approximation: The computation is close to the exact value within 1 ± ϵ with probability within 1 – δ.

Stream computations

We will illustrate some basic computations and aggregations to highlight the difference between batch and stream-based calculations when we must compute basic operations with constraints on memory and yet consider the entire data:

  • Frequency count or point queries: The generic technique of Count-Min Sketch has been successfully applied to perform various summarizations...
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