By Daniel T. Larose, Chantal D. Larose
Examine equipment of knowledge research and their software to real-world info units This up to date moment version serves as an creation to info mining equipment and types, together with organization ideas, clustering, neural networks, logistic regression, and multivariate research. The authors follow a unified white field method of info mining tools and versions. This process is designed to stroll readers in the course of the operations and nuances of some of the equipment, utilizing small info units, so readers can achieve an perception into the internal workings of the tactic below overview. Chapters supply readers with hands-on research difficulties, representing a chance for readers to use their newly-acquired facts mining services to fixing genuine difficulties utilizing huge, real-world info units. facts Mining and Predictive Analytics, moment variation: * deals accomplished insurance of organization ideas, clustering, neural networks, logistic regression, multivariate research, and R statistical programming language * positive factors over 750 bankruptcy workouts, permitting readers to evaluate their figuring out of the hot fabric * offers an in depth case research that brings jointly the teachings realized within the e-book * comprises entry to the spouse web site, www.dataminingconsultant.com, with particular password-protected teacher content material info Mining and Predictive Analytics, moment version will entice laptop technology and statistic scholars, in addition to scholars in MBA courses, and leader executives.
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Extra resources for Data Mining and Predictive Analytics
4. Modeling Phase a. Select and apply appropriate modeling techniques. b. Calibrate model settings to optimize results. c. Often, several different techniques may be applied for the same data mining problem. d. May require looping back to data preparation phase, in order to bring the form of the data into line with the specific requirements of a particular data mining technique. 5. Evaluation Phase a. The modeling phase has delivered one or more models. These models must be evaluated for quality and effectiveness, before we deploy them for use in the field.
6 WHAT TASKS CAN DATA MINING ACCOMPLISH 17 • determining the proportion of cases in which a new drug will exhibit dangerous side effects. We discuss two algorithms for generating association rules, the a priori algorithm, and the generalized rule induction (GRI) algorithm, in Chapter 22. THE R ZONE Getting Started with R # Comments, indents, and semicolons # Anything prefaced by a pound sign (#) is a comment. # Comments are not executed by R. Instead, they explain what the code is doing. vsub <- cars[which(cars$mpg > 30),] # Subset by a logical condition # To declare new variables, type the variable name, a left-arrow, then the value of the variable firstletter <- “a” weight <- cars$weight 18 CHAPTER 1 AN INTRODUCTION TO DATA MINING AND PREDICTIVE ANALYTICS # Display more than one ﬁgure at a time par(mfrow=c(1,1)) # plots one figure; the default setting par(mfrow=c(2,3)) # plots six figures: three in the top row, three in the bottom row # Plots will fill the plot space row by row # Download and install an R Package # Example: ggplot2, from Chapter 3.
Then, for new observations, estimates of the value of the target variable are made, based on the values of the predictors. For example, we might be interested in estimating the systolic blood pressure reading of a hospital patient, based on the patient’s age, gender, body mass index, and blood sodium levels. The relationship between systolic blood pressure and the predictor variables in the training set would provide us with an estimation model. We can then apply that model to new cases. Examples of estimation tasks in business and research include • estimating the amount of money a randomly chosen family of four will spend for back-to-school shopping this fall; • estimating the percentage decrease in rotary movement sustained by a National Football League (NFL) running back with a knee injury; • estimating the number of points per game LeBron James will score when double-teamed in the play-offs; • estimating the grade point average (GPA) of a graduate student, based on that student’s undergraduate GPA.