Knowledge and knowledge acquisition in the computational context. Regoczei, S. & Hirst, G. The psychology of expertise: Cognitive research and empirical AI, pages 12–25. Springer-Verlag, New York, 1992. abstract bibtex The enterprise of artificial intelligence has given rise to a new class of software systems. These software systems, commonly called expert systems, or knowledge-based systems, are distinguished in that they contain, and can apply, knowledge or some particular skill or expertise in the execution of a task. These systems embody, in some form, humanlike expertise. The construction of such software therefore requires that we somehow get hold of the knowledge and transfer it into the computer, representing it in a form usable by the machine. This total process has come to be called knowledge acquisition (KA). The necessity for knowledge representation—the describing or writing down of the knowledge in machine-usable form—underlies and shapes the whole KA process and the development of expert system software.
Concern with knowledge is nothing new, but some genuinely new issues have been introduced by the construction of expert systems. The processes of KA and KR are envisaged as the means through which software is endowed with expertise-producing knowledge. This vision, however, is problematic. The connection between knowledge and expertise itself is not clearly understood, though the phrases ``knowledge-based system'' and ``expert system'' tend to be used interchangeably, as if all expertise were knowledge-like. This haziness about basics also leads to the unrealistic expectation that the acquisition of knowledge in machine-usable form will convey powers of expert performance upon computer software. These assumptions are questionable. For a deeper understanding, we must clarify the concepts of knowledge acquisition and knowledge representation, and the concept of knowledge itself, as they are used in the computer context. That is the first goal of this chapter. The second goal is to explicate the issues involved in KA and show how they are amenable to research by experimental or cognitive psychologists.
The chapter will be organized as follows. In the second section we will set the stage for cross-disciplinary discussion by sketching the history of artificial intelligence and KA. In the third section, we try to answer the question, What is knowledge? by examining the various approaches that people have taken in trying to grasp the nature of knowledge. In the fourth section, we discuss the KA problem. In particular, we present a model of the KA process to reconcile and pull together the various approaches to KA that are found in the literature. This basic model of KA will be used in the commentaries chapter (chapter 17 of this book) to compare the contributions to this volume. In the present introductory chapter, we outline some crucial current issues, especially those that could be fruitfully addressed by experimental psychologists, and as a conclusion we try to point to some future directions for research.
@InBook{ regoczei1,
author = {Stephen Regoczei and Graeme Hirst},
chapter = {Knowledge and knowledge acquisition in the computational
context},
editor = {Robert R. Hoffmann},
title = {The psychology of expertise: Cognitive research and
empirical AI},
address = {New York},
publisher = {Springer-Verlag},
year = {1992},
pages = {12--25},
abstract = {<P> The enterprise of artificial intelligence has given
rise to a new class of software systems. These software
systems, commonly called expert systems, or knowledge-based
systems, are distinguished in that they contain, and can
apply, knowledge or some particular skill or expertise in
the execution of a task. These systems embody, in some
form, humanlike expertise. The construction of such
software therefore requires that we somehow get hold of the
knowledge and transfer it into the computer, representing
it in a form usable by the machine. This total process has
come to be called <I>knowledge acquisition</I> (KA). The
necessity for knowledge representation---the describing or
writing down of the knowledge in machine-usable
form---underlies and shapes the whole KA process and the
development of expert system software.</p> <P> Concern with
knowledge is nothing new, but some genuinely new issues
have been introduced by the construction of expert systems.
The processes of KA and KR are envisaged as the means
through which software is endowed with expertise-producing
knowledge. This vision, however, is problematic. The
connection between knowledge and expertise itself is not
clearly understood, though the phrases ``knowledge-based
system'' and ``expert system'' tend to be used
interchangeably, as if all expertise were knowledge-like.
This haziness about basics also leads to the unrealistic
expectation that the acquisition of knowledge in
machine-usable form will convey powers of expert
performance upon computer software. These assumptions are
questionable. For a deeper understanding, we must clarify
the concepts of knowledge acquisition and knowledge
representation, and the concept of knowledge itself, as
they are used in the computer context. That is the first
goal of this chapter. The second goal is to explicate the
issues involved in KA and show how they are amenable to
research by experimental or cognitive psychologists.</p>
<P> The chapter will be organized as follows. In the second
section we will set the stage for cross-disciplinary
discussion by sketching the history of artificial
intelligence and KA. In the third section, we try to answer
the question, What is knowledge? by examining the various
approaches that people have taken in trying to grasp the
nature of knowledge. In the fourth section, we discuss the
KA problem. In particular, we present a model of the KA
process to reconcile and pull together the various
approaches to KA that are found in the literature. This
basic model of KA will be used in the commentaries chapter
(chapter 17 of this book) to compare the contributions to
this volume. In the present introductory chapter, we
outline some crucial current issues, especially those that
could be fruitfully addressed by experimental
psychologists, and as a conclusion we try to point to some
future directions for research.</p>}
}
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These software systems, commonly called expert systems, or knowledge-based systems, are distinguished in that they contain, and can apply, knowledge or some particular skill or expertise in the execution of a task. These systems embody, in some form, humanlike expertise. The construction of such software therefore requires that we somehow get hold of the knowledge and transfer it into the computer, representing it in a form usable by the machine. This total process has come to be called <I>knowledge acquisition</I> (KA). The necessity for knowledge representation—the describing or writing down of the knowledge in machine-usable form—underlies and shapes the whole KA process and the development of expert system software.</p> <P> Concern with knowledge is nothing new, but some genuinely new issues have been introduced by the construction of expert systems. The processes of KA and KR are envisaged as the means through which software is endowed with expertise-producing knowledge. This vision, however, is problematic. The connection between knowledge and expertise itself is not clearly understood, though the phrases ``knowledge-based system'' and ``expert system'' tend to be used interchangeably, as if all expertise were knowledge-like. This haziness about basics also leads to the unrealistic expectation that the acquisition of knowledge in machine-usable form will convey powers of expert performance upon computer software. These assumptions are questionable. For a deeper understanding, we must clarify the concepts of knowledge acquisition and knowledge representation, and the concept of knowledge itself, as they are used in the computer context. That is the first goal of this chapter. The second goal is to explicate the issues involved in KA and show how they are amenable to research by experimental or cognitive psychologists.</p> <P> The chapter will be organized as follows. In the second section we will set the stage for cross-disciplinary discussion by sketching the history of artificial intelligence and KA. In the third section, we try to answer the question, What is knowledge? by examining the various approaches that people have taken in trying to grasp the nature of knowledge. In the fourth section, we discuss the KA problem. In particular, we present a model of the KA process to reconcile and pull together the various approaches to KA that are found in the literature. This basic model of KA will be used in the commentaries chapter (chapter 17 of this book) to compare the contributions to this volume. In the present introductory chapter, we outline some crucial current issues, especially those that could be fruitfully addressed by experimental psychologists, and as a conclusion we try to point to some future directions for research.</p>","bibtex":"@InBook{\t regoczei1,\n author\t= {Stephen Regoczei and Graeme Hirst},\n chapter\t= {Knowledge and knowledge acquisition in the computational\n\t\t context},\n editor\t= {Robert R. Hoffmann},\n title\t\t= {The psychology of expertise: Cognitive research and\n\t\t empirical AI},\n address\t= {New York},\n publisher\t= {Springer-Verlag},\n year\t\t= {1992},\n pages\t\t= {12--25},\n abstract\t= {<P> The enterprise of artificial intelligence has given\n\t\t rise to a new class of software systems. These software\n\t\t systems, commonly called expert systems, or knowledge-based\n\t\t systems, are distinguished in that they contain, and can\n\t\t apply, knowledge or some particular skill or expertise in\n\t\t the execution of a task. 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