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Machine Learning with R

Machine Learning with R

By : Brett Lantz
4.4 (73)
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Machine Learning with R

Machine Learning with R

4.4 (73)
By: Brett Lantz

Overview of this book

Machine learning, at its core, is concerned with transforming data into actionable knowledge. This fact makes machine learning well-suited to the present-day era of "big data" and "data science". Given the growing prominence of R—a cross-platform, zero-cost statistical programming environment—there has never been a better time to start applying machine learning. Whether you are new to data science or a veteran, machine learning with R offers a powerful set of methods for quickly and easily gaining insight from your data. "Machine Learning with R" is a practical tutorial that uses hands-on examples to step through real-world application of machine learning. Without shying away from the technical details, we will explore Machine Learning with R using clear and practical examples. Well-suited to machine learning beginners or those with experience. Explore R to find the answer to all of your questions. How can we use machine learning to transform data into action? Using practical examples, we will explore how to prepare data for analysis, choose a machine learning method, and measure the success of the process. We will learn how to apply machine learning methods to a variety of common tasks including classification, prediction, forecasting, market basket analysis, and clustering. By applying the most effective machine learning methods to real-world problems, you will gain hands-on experience that will transform the way you think about data. "Machine Learning with R" will provide you with the analytical tools you need to quickly gain insight from complex data.
Table of Contents (19 chapters)
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Machine Learning with R
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
9
Finding Groups of Data – Clustering with k-means
1
Index

Chapter 3. Lazy Learning – Classification Using Nearest Neighbors

Recently, I read an article describing a new type of dining experience. Patrons are served in a completely darkened restaurant by waiters who move carefully around memorized routes using only their sense of touch and sound. The allure of these establishments is rooted in the idea that depriving oneself of visual sensory input will enhance the sense of taste and smell, and foods will be experienced in new and exciting ways. Each bite is said to be a small adventure in which the diner discovers the flavors the chef has prepared.

Can you imagine how a diner experiences the unseen food? At first, there might be a rapid phase of data collection: what are the prominent spices, aromas, and textures? Does the food taste savory or sweet? Using this data, the customer might then compare the bite to the food he or she had experienced previously. Briny tastes may evoke images of seafood, while earthy tastes may be linked to past meals...

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Programming languages
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Machine Learning with R
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