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Landauer, Thomas K; Dumais, Susan T. – Psychological Review, 1997
A theory of acquired similarity and knowledge representation, latent semantic analysis (LSA), is presented to explain how people know as much as they do with the little information they get. LSA suggests that some domains of knowledge contain vast numbers of weak intercorrelations that amplify learning by inference. (SLD)
Descriptors: Correlation, Induction, Inferences, Information Utilization

Goh, Ngoh-Khang; And Others – Australian Science Teachers Journal, 1993
Presents the results of a study that identifies misconceptions in chemistry by means of a two-tier diagnostic instrument. Data indicate that similar misconceptions are held by both Singaporean and Australian populations. Focuses on covalent bonding and structure. (DDR)
Descriptors: Chemistry, Concept Formation, Educational Strategies, Knowledge Representation

Atlam, El-Sayed; Morita, K.; Fuketa, M.; Aoe, Jun-ichi – Information Processing & Management, 2002
Discusses automatic document classification and document retrieval systems and presents a strategy for building a morphological machine dictionary of English that infers meaning of derivations by considering morphological affixes and their semantic classification. Proposes a method for selecting compound field association terms from a large pool…
Descriptors: Classification, Documentation, Information Retrieval, Knowledge Representation

Tarsitani, Carlo; Vicentini, Matilde – Science and Education, 1996
Analyzes textbooks on thermodynamics with the aim of showing that several mental representations of this subject matter are present in scientific literature. Outlines divergent attitudes towards the definition of fundamental concepts and also towards the epistemological status of thermodynamics. Highlights the importance of historical…
Descriptors: Foreign Countries, Knowledge Representation, Scientific Concepts, Secondary Education

Lakshmanan, Laks V. S.; Sadri, Fereidoon – Information Systems, 1997
Considers a "hybrid" approach to the modeling of uncertainty in deductive databases. The model, deductive IST (DIST) is based on an extension of the "Information Source Tracking" (IST) model for relational databases. Proves that the complexity of testing containment of conjunctive DIST queries remains the same as in the…
Descriptors: Databases, Deduction, Information Processing, Information Seeking

Madsen, Eugene L. – Environmental Science and Technology, 1998
Discusses a model that describes how knowledge is obtained in environmental microbiology. Suggests that constraints on knowledge will yield to relationships between methodological innovations and their iterative application. Contains 132 references. (DDR)
Descriptors: Biology, Environmental Education, Epistemology, Genetics

Greenberg, Jan D.; Dickelman, Gary J. – Performance Improvement, 2000
Discusses distributed cognition theory, a viable framework and methodology for examining interactions between individuals and artifacts, and how it relates to performance support. Highlights include knowledge representation; applications in learning and performance support; learning communities; collaborative learning; and computer technology and…
Descriptors: Cognitive Processes, Computer Assisted Instruction, Interaction, Knowledge Representation

Rahayu, Sri; Tytler, Russell – Research in Science Education, 1999
Explores children's conceptions of burning through observation and discussion of a number of challenging phenomenon. Finds that children's conceptions are both specific and contextually based. (Author/CCM)
Descriptors: Concept Formation, Knowledge Representation, Primary Education, Science Education

Loh, Stanley; De Oliveira, Jose Palazzo M.; Gastal, Fabio Leite – Journal of Documentation, 2001
Presents an application of knowledge discovery in texts (KDT) concerning medical records of a psychiatric hospital. The approach helps physicians to extract knowledge about patients and diseases that may be used for epidemiological studies, for training professionals, and to support physicians to diagnose and evaluate diseases. (Author/AEF)
Descriptors: Electronic Text, Information Processing, Knowledge Representation, Professional Development
Yang, Lee-Xieng; Lewandowsky, Stephan – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2004
The authors present 2 experiments that establish the presence of knowledge partitioning in perceptual categorization. Many participants learned to rely on a context cue, which did not predict category membership but identified partial boundaries, to gate independent partial categorization strategies. When participants partitioned their knowledge,…
Descriptors: Classification, Perception, Cues, Psychological Studies
Vanderburg, Willem H. – Bulletin of Science, Technology and Society, 2006
This fourth part outlines a strategy for overcoming the limitations of the knowledge system for engineering by combining intellectual maps, preventive approaches, umbrella concepts, and round tables as described in the earlier parts. A discussion of the issues faced by modern medicine illustrates the paradigmatic nature of the diagnosis and…
Descriptors: Social Sciences, Engineering Education, Medical Education, Medicine
Hoffmann, Michael H. G. – Educational Studies in Mathematics, 2006
This comment attempts to identify different "semiotic perspectives" proposed by the authors of this special issue according to the problems they discuss. These problems can be distinguished as problems concerning the representation of mathematical knowledge, the definition and objectivity of meaning, epistemological questions of learning and…
Descriptors: Semiotics, Problems, Definitions, Learning Processes
Driver, Rosalind; And Others – 1996
A study of students' understandings of the nature of science makes science itself the focus of inquiry. This book is an account of a research project undertaken to elicit and to describe the range and nature of school students' understandings of the nature of science. The features of students' representations which are focused on include their…
Descriptors: Elementary Secondary Education, Foreign Countries, Knowledge Representation, Science Education
Dillon, Martin – 2000
This paper discusses bibliographic control of knowledge resources on the World Wide Web. The first section sets the context of the inquiry. The second section covers the following topics related to metadata: (1) definitions of metadata, including metadata as tags and as descriptors; (2) metadata on the Web, including general metadata systems,…
Descriptors: Access to Information, Cataloging, Knowledge Representation, Library Role
Thompson, Patrick W. – 1999
A discussion of the papers, "Representation, Vision and Visualization: Cognitive Functions in Mathematical Thinking. Basic Issues for Learning" (Raymond Duval) and "On the Development of Human Representational Competence from an Evolutionary Point of View: From Episodic to Virtual Culture" (James J. Kaput), is presented. Kaput…
Descriptors: Cultural Relevance, Elementary Secondary Education, Epistemology, Knowledge Representation