By Ian H. Witten
Data Mining: sensible desktop studying instruments and methods, Fourth variation, offers a radical grounding in computer studying strategies, in addition to useful recommendation on using those instruments and strategies in real-world facts mining occasions. This hugely expected fourth variation of the main acclaimed paintings on information mining and computer studying teaches readers every little thing they should recognize to get going, from getting ready inputs, examining outputs, comparing effects, to the algorithmic tools on the middle of winning information mining approaches.
Extensive updates mirror the technical alterations and modernizations that experience taken position within the box because the final variation, together with immense new chapters on probabilistic equipment and on deep studying. Accompanying the ebook is a brand new model of the preferred WEKA desktop studying software program from the college of Waikato. Authors Witten, Frank, corridor, and friend comprise modern strategies coupled with the tools on the innovative of up to date research.
Please stopover at the ebook better half web site at http://www.cs.waikato.ac.nz/ml/weka/book.html
It contains
- Powerpoint slides for Chapters 1-12. it is a very accomplished educating source, with many PPT slides overlaying every one bankruptcy of the book
- Online Appendix at the Weka workbench; back a really entire studying reduction for the open resource software program that is going with the book
- Table of contents, highlighting the various new sections within the 4th version, besides reports of the first variation, errata, etc.
- Provides a radical grounding in computing device studying strategies, in addition to sensible recommendation on employing the instruments and methods to information mining projects
- Presents concrete information and methods for functionality development that paintings by means of remodeling the enter or output in computing device studying methods
- Includes a downloadable WEKA software program toolkit, a accomplished number of laptop studying algorithms for facts mining tasks-in an easy-to-use interactive interface
- Includes open-access on-line classes that introduce sensible functions of the cloth within the book
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Extra resources for Data mining : practical machine learning tools and techniques
Sample text
2 Decision tree for the contact lens data. 2 SIMPLE EXAMPLES: THE WEATHER PROBLEM AND OTHERS 15 that dictates the contact lens recommendation for that case. The question of what is the most natural and easily understood format for the output from a machine learning scheme is one that we will return to in Chapter 3. A. Fisher in the mid-1930s and is arguably the most famous dataset used in data mining, contains 50 examples each of three types of plant: Iris setosa, Iris versicolor, and Iris virginica.
2, all four attributes have values that are symbolic categories rather than numbers. Outlook can be sunny, overcast, or rainy; temperature can be hot, mild, or cool; humidity can be high or normal; and windy can be true or false. This creates 36 possible combinations (3 ¥ 3 ¥ 2 ¥ 2 = 36), of which 14 are present in the set of input examples. 2 11 The weather data. Outlook Temperature Humidity Windy Play sunny sunny overcast rainy rainy rainy overcast sunny sunny rainy sunny overcast overcast rainy hot hot hot mild cool cool cool mild cool mild mild mild hot mild high high high high normal normal normal high normal normal normal high normal high false true false false false true true false false false true true false true no no yes yes yes no yes no yes yes yes yes yes no If If If If If outlook = sunny and humidity = high outlook = rainy and windy = true outlook = overcast humidity = normal none of the above then then then then then play play play play play = = = = = no no yes yes yes These rules are meant to be interpreted in order: the first one, then if it doesn’t apply the second, and so on.
A suitable compromise must be reached between the viewpoint of a company accountant, who dislikes bad debt, and that of a sales executive, who dislikes turning business away. Enter machine learning. The input was 1000 training examples of borderline cases for which a loan had been made that specified whether the borrower had finally paid off or defaulted. For each training example, about 20 attributes were extracted from the questionnaire, such as age, years with current employer, years at current address, years with the bank, and other credit cards possessed.