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Anil Sharma,  Lovely Professional University
                                                                                                Unit 2: Knowledge



                                    Unit 2: Knowledge                                           Notes


             CONTENTS
             Objectives
             Introduction

             2.1  General Concepts of Knowledge
                 2.1.1   Knowledge Progression
                 2.1.2   Knowledge Model

             2.2  Definition and Importance of Knowledge
                 2.2.1  Three Kinds of Knowledge
                 2.2.2  Uses of Knowledge
                 2.2.3   Knowledge-base
             2.3  Knowledge-based Systems (KBS)

                 2.3.1  Characteristics of KBS
                 2.3.2   Structure of a Knowledge-based System
                 2.3.3   KBS Development

                 2.3.4   Testing
                 2.3.5  Why Build a Knowledge-based System?
             2.4  Summary
             2.5  Keywords
             2.6  Review Questions

             2.7  Further Readings

          Objectives


          After studying this unit, you will be able to:
               Discuss the general concepts of Knowledge
               Explain the definition and importance of Knowledge

               Describe the concept of Knowledge-based Systems (KBS)

          Introduction

          In the previous unit, we dealt with the meaning of Artificial intelligence, its goals and importance,
          the early work and common techniques used in Artificial Intelligence. Knowledge is a familiarity
          with someone or something, which can include facts, information, descriptions or skills acquired
          through experience or education. It can refer to the theoretical or practical understanding of a
          subject. It can be implicit (as with practical skill or expertise) or explicit (as with the theoretical
          understanding of a subject); it can be more or less formal or systematic. In philosophy, the study
          of knowledge is called epistemology; the philosopher Plato famously defined knowledge as




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