95-791 Spring 2013 Lecture #8 Predictive analytics: Regression Artur Dubrawski awd@cs.cmu.edu This unit • Good-old correlation scores revisited • Locally weighted regression – As an approximator of non-linear functions – As a framework for active/purposive acquisition of data 95-791 Data Mining Lecture #8 Slide 2 Copyright © 2000-2013 Artur Dubrawski Correlational scores of association between attributes of data • • • • Linear Rank Quadratic …. Would not it be great to have an
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Understanding the Factors Affecting The Unemployment Rate Through Regression Analysis An Individual Report Presented to The Faculty of Economics Department In Partial Fulfillment To The Requirements for ECONMET C31 Submitted to: Dr. Cesar Rufino Submitted by: Aaron John Dee 10933557 April 8‚ 2011 1 TABLE OF CONTENTS I. INTRODUCTION A. Background of the Study B. Statement of the Problem C. Objective II. THEORETICAL FRAMEWORK AND RELATED LITERATURE A. GDP B. Average Years in School
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An Introduction to Linear Programming Steven J. Miller∗ March 31‚ 2007 Mathematics Department Brown University 151 Thayer Street Providence‚ RI 02912 Abstract We describe Linear Programming‚ an important generalization of Linear Algebra. Linear Programming is used to successfully model numerous real world situations‚ ranging from scheduling airline routes to shipping oil from refineries to cities to finding inexpensive diets capable of meeting the minimum daily requirements. In many of these problems
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One-Point Presentation - COM 218 Violent Video Games Specific Purpose: To inform my audience about kids‚ teenagers and adults who play violet video games. What are the three strongest reasons to support your point of view? 1. Media Habits – Aggressive Attitudes and Behaviors 2. Impact on media violence on kids and young adults on the rise 3. Children and adults alike have become additive I. Introduction Video games have been in existed since the 1970’s‚ but it was not until
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Fitting in is one of the toughest problems a person can go through. The challenge of fitting in is a process that nearly everybody goes through. It is a long process of expressing yourself to others through constant familiarities and similarities. One of my challenges was fitting in‚ I was the person that sat in the back of the classroom that nobody talks to. I never truly got any attention without acknowledging the person first. I overcame that attribute by being myself and relating to people on
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Limitations: Regression analysis is a commonly used tool for companies to make predictions based on certain variables. Even though it is very common there are still limitations that arise when producing the regression‚ which can skew the results. The Number of Variables: The first limitation that we noticed in our regression model is the number of variables that we used. The more companies that you have to compare the greater the chance your model will be significant. We have found that one needs
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available in the tables attached with the question paper. Question 1 (15 points) Software effort estimation‚ measured in number of hours required to develop software‚ is an important activity associated with any software development company. It is used for investment planning and pricing of the software development. One approach usually used for software effort estimation is through Function Point Analysis (FPA). First made public by Allan Albrecht of IBM in 1979‚ the FPA
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Curve-Fitting Project – Linear Model: Average Sales Prices of new homes sold in the United States between 1964 and 2008 (LR-1) Purpose: To analyze the average sales prices of new homes sold in the United States from 1964 to 2008. Data: The prices were retrieved from http://www.census.gov/const/uspriceann.pdf. I chose to use the prices between 1964 and 2008 as they showed a huge increase (More data was available (see link)). Average sales prices of new homes sold in the US Year Time (seconds)
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MULTIPLE REGRESSION After completing this chapter‚ you should be able to: understand model building using multiple regression analysis apply multiple regression analysis to business decision-making situations analyze and interpret the computer output for a multiple regression model test the significance of the independent variables in a multiple regression model use variable transformations to model nonlinear relationships recognize potential problems in multiple
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LINEAR ALGEBRA Paul Dawkins Linear Algebra Table of Contents Preface............................................................................................................................................. ii Outline............................................................................................................................................ iii Systems of Equations and Matrices.............................................................................................
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