By Daniel T. Larose
Follow robust information Mining tools and versions to Leverage your info for Actionable Results
Data Mining equipment and versions provides:
• the most recent options for uncovering hidden nuggets of information
• The perception into how the knowledge mining algorithms truly work
• The hands-on event of acting information mining on huge facts sets
Data Mining equipment and Models:
• Applies a "white box" method, emphasizing an realizing of the version buildings underlying the softwareWalks the reader throughout the quite a few algorithms and gives examples of the operation of the algorithms on genuine huge information units, together with a close case learn, "Modeling reaction to Direct-Mail Marketing"
• checks the reader's point of realizing of the innovations and methodologies, with over a hundred and ten bankruptcy exercises
• Demonstrates the Clementine information mining software program suite, WEKA open resource facts mining software program, SPSS statistical software program, and Minitab statistical software
• contains a better half website, www.dataminingconsultant.com, the place the information units utilized in the booklet can be downloaded, besides a complete set of knowledge mining assets. school adopters of the ebook have entry to an array of invaluable assets, together with ideas to all workouts, a PowerPoint(r) presentation of every bankruptcy, pattern facts mining path initiatives and accompanying facts units, and multiple-choice bankruptcy quizzes.
With its emphasis on studying by way of doing, this can be an exceptional textbook for college kids in enterprise, desktop technological know-how, and statistics, in addition to a problem-solving reference for facts analysts and execs within the field.
An Instructor's guide proposing certain recommendations to the entire difficulties within the publication is offered onlne.
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Extra info for Data Mining Methods and Models
Whichever form the linear combination takes, however, the variables should be standardized ﬁrst so that one variable with high dispersion does not overwhelm the others. The simplest user-deﬁned composite is simply the mean of the variables. In this case, ai = 1/k, i = 1, 2, . . , k. However, if the analyst has prior information or expert knowledge available to indicate that the variables should not all be weighted equally, each coefﬁcient ai can be chosen to reﬂect the relative weight of that variable, with more important variables receiving higher weights.
98 as we estimated above for the new cereal with 1 gram of sugar. 1. 1 is pointing to a location on the regression line directly above the Cheerios point. This is where the regression equation predicted the nutrition rating to be for a cereal with a sugar content of 1 gram. 215 rating points, which represents the vertical distance from the Cheerios data point to the regression line. 215 rating points, in general y − yˆ , is known variously as the prediction error, estimation error, or residual.
This rotation method is called oblique because the axes are no longer required to be at 90◦ , but may form an oblique angle. For more on oblique rotation methods, see Harmon . USER-DEFINED COMPOSITES Factor analysis continues to be controversial, in part due to the lack of invariance under transformation and the consequent nonuniqueness of the factor solutions. Analysts may prefer a much more straightforward alternative: user-deﬁned composites. A 24 CHAPTER 1 DIMENSION REDUCTION METHODS user-deﬁned composite is simply a linear combination of the variables which combines several variables into a single composite measure.