INTRODUCTION MACHINE LEARNING

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INTRODUCTION . TO. MACHINE LEARNING . AN EARLY DRAFT OF A PROPOSED. TEXTBOOK. Nils J. Nilsson Robotics Laboratory Department of Computer Science Stanford University Stanford, CA 94305. e-mail: November 3, 1998. Copyright 2005. c Nils J. Nilsson This material may not be copied, reproduced, or distributed without the written permission of the copyright holder. ii Contents 1 Preliminaries 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. What is MACHINE LEARNING ? . . . . . . . . . . . . . . . . . 1. Wellsprings of MACHINE LEARNING . . . . . . . . . . . . . . 3. Varieties of MACHINE LEARNING . . . . . . . . . . . . . . . . 4. LEARNING Input-Output Functions.

learning mechanisms might be employed depending on which subsystem is being changed. We will study several di erent learning methods in this book. Sensory signals Perception Actions Action Computation Model Planning and Reasoning Goals Figure 1.1: An AI System One might ask \Why should machines have to learn? Why not design ma-

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