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Machine Learning in Action, by Peter Harrington
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Summary
Machine Learning in Action is unique book that blends the foundational theories of machine learning with the practical realities of building tools for everyday data analysis. You'll use the flexible Python programming language to build programs that implement algorithms for data classification, forecasting, recommendations, and higher-level features like summarization and simplification.
About the BookA machine is said to learn when its performance improves with experience. Learning requires algorithms and programs that capture data and ferret out the interesting or useful patterns. Once the specialized domain of analysts and mathematicians, machine learning is becoming a skill needed by many.
Machine Learning in Action is a clearly written tutorial for developers. It avoids academic language and takes you straight to the techniques you'll use in your day-to-day work. Many (Python) examples present the core algorithms of statistical data processing, data analysis, and data visualization in code you can reuse. You'll understand the concepts and how they fit in with tactical tasks like classification, forecasting, recommendations, and higher-level features like summarization and simplification.
Readers need no prior experience with machine learning or statistical processing. Familiarity with Python is helpful.
Purchase of the print book comes with an offer of a free PDF, ePub, and Kindle eBook from Manning. Also available is all code from the book.
What's Inside- A no-nonsense introduction
- Examples showing common ML tasks
- Everyday data analysis
- Implementing classic algorithms like Apriori and Adaboos
- Sales Rank: #208506 in Books
- Brand: Brand: Manning Publications
- Published on: 2012-04-19
- Original language: English
- Number of items: 1
- Dimensions: 9.25" h x 1.02" w x 7.38" l, 1.44 pounds
- Binding: Paperback
- 384 pages
- Used Book in Good Condition
About the Author
Peter Harrington holds a Bachelors and a Masters Degrees in Electrical Engineering. He is a professional developer and data scientist. Peter holds five US patents and his work has been published in numerous academic journals.
Most helpful customer reviews
63 of 67 people found the following review helpful.
Little on Theory, Too Much on UI
By Jeremy Kun
I agree with other reviewers' complaints on the repetitiveness and poor flow of this book, but I want to point out some other concerns and appreciations.
In the preface Harrington emphasizes the importance of knowing the theory and being able to connect the theory to the algorithms and applications. I wholeheartedly agree with this statement, but it appears Harrington forgot this was his stated goal. The mathematics contained in the book is wishy-washy and vague, and its connections to the algorithms is at best tenuous. Harrington rarely explains why a particular formula is used, and when he does he's really explaining how it's used and not why it makes sense to use it (given, this is a common criticism of applied mathematics). He will often throw in mathematical jargon without a useable explanation. And for every paragraph spent on mathematical theory, five paragraphs are spent on how to use various third-party libraries for graphing, UI, and data collection (e.g., Tkinter, Matplotlib, Yahoo! PlaceFinder API, Google Shopping API, etc.). These are great, but they massively clutter the text. I'd much rather have a 200 page appendix than have circuitous detours sprinkled throughout the book.
One big plus is in his treatment of support vector machines. He includes (unlike many texts which are solely about support vector machines) a complete python implementation of the Sequential Minimal Optimization algorithm. That being said, it's a horrendous piece of code clearly not written for legibility. This page (page 109) is littered with at least fifteen 1-3 letter variable names and pointless statements like "if L==H: print 'L==H'; continue". Harrington is apparently afraid of using whitespace, and as the function goes on it becomes increasingly cramped and impossible to read (mostly due to the pervasive use of backslashes to denote line continuations). Instead of breaking the code into functions and explaining the pieces, Harrington uses a comment-style typeset code annotation. In my opinion this only helps to clutter the page. It's clear this piece of code (as with his other code samples) were heavily constrained by the page width. It's the author and editor's job to compensate for that; they failed.
So while this book has a lot of valuable resources in it, they should fix it in two ways. First, quit pretending this is a useful mathematical treatment. Second, reorganize.
I will say at least, that with these minor modifications, this text is *vastly* better than Marsland's attempt, "Machine Learning, an Algorithmic Perspective."
31 of 33 people found the following review helpful.
Good attempt but needs LOT of improvement
By Arun R
Looking at many good reviews on amazon, I decided to purchase this book. It's a decent book, but IMO it has been edited poorly and the code has not been tested properly.
The introduction chapter got me really excited, just like other Manning's "in Action" books do. But once I started executing the code in chapter 2 "Classifying with k-nearest neighbors" I realized that the code had bugs. Though I could figure out what's wrong and fix the bugs, I did not expect this from Manning, after having read some of their excellent books like (The Quick Python Book, Second Edition, Spring in Action and Hadoop in Action).
Moreover the book has some introduction to python and numpy in appendix A. I believe the author could have pointed the reader elsewhere for learning python and those pages could have been used to explain more of numpy and matplotlib, which the author uses freely without any explanation in the text. (Yup, be ready to read some online numpy and matplotlib tutorials and documentation.)
If you don't know python, then you can do what I did: read The Quick Python Book, Second Edition and then attempt this book.
The figures in the book are not in color so you need to execute the code to understand what the author is telling. It forces you to actually run the code, which is good, but you can't read this book without a computer in front of you.
Finally, I am a big believer in following the conventions of a language. I would have been really happy had the author followed PEP8 ([...]), because along with learning machine learning, you could have learnt some good python coding practices.
50 of 58 people found the following review helpful.
Great idea, terrible execution
By Andy55555
Using Python and NumPy code to teach machine learning is a great idea. Well-written Python is so easy to understand that it's often called 'executable pseudocode', and third-party extensions such as NumPy and SciPy make it competitive with platforms like Matlab for math and science application programming. The author seems to know his subject, and he had another good idea when deciding to structure the book around the ten most popular machine learning algorithms (though he only ends up covering eight of them for reasons he explains in the introduction). Unfortunately, the book is poorly written and even more poorly edited; it reads like a very rough draft that was put once through a spell-checker and then published. The text is repetitive, confused, and often doesn't match up with the code and data sets to which it refers. Color-coded figures are published (in the print edition) in black and white. I'd hesitate to trust this author and publisher again (not to mention the reviewers who gave the book four or five stars).
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