Explores the effectiveness of intervention discussion sections for a college general chemistry course designed to apply research on student preconceptions, knowledge integration, and student explanations. Describes the testing of two interventions on bond energy and spontaneity. (Contains 44 references.) (DDR)

Examines the structure and components of information storage and retrieval systems and information filtering systems. Identifies 13 components as representations of data objects (copies, excerpts, descriptions, abstractions, and identifying references) and functions that operate on them. Reduces the functional components to transformation and…

Introduces a framework for comparing and evaluating knowledge representation schemes based on the requirements for "good" representation discussed in extant literature. Comparative analysis and evaluation of four popular knowledge representation schemes--Logic, Production Rules, Semantic Nets and Frames--are discussed in support of validity and…

Examines four working steps from an empirical model where an expert abstractor discovers what a paper is about and drafts a topic sentence; a simulation system is developed using this model. Discusses knowledge processing activities of professional summarizing. Results indicate that a small simulation model of professional summarizing is feasible.…

Introduces characteristics of the sublanguage found in diagnostic messages about automotive equipment failures and discusses a system for minimizing jargon. Proposes using general knowledge sources and evaluates levels of communication accuracy, robustness and efficiency. (AEF)

Asks whether theories of knowledge representation provide a basis for the development of theories of knowledge structuring in instruction. Discusses codes of knowledge, surface versus deep structures, semantic networks, and multiple memory systems. Reviews research on teaching, external representation of cognitive structures, hierarchical…

Analyzes didactic problems related to the inseparability of electric charge from the mass, the impossibility of its direct observation, and the meaning associated with the basic concepts of electricity. Contains 44 references. (DDR)

Introduces the Knowledge Digraph Contribution (KDC) data-analysis methodology for quantitatively measuring the degree to which a given knowledge digraph can account for the occurrence of specific sequences of propositions in recall, summarization, talk-aloud and question-answering protocol data. Notes the applicability of this approach to the…

Illustrates use of Latent Semantic Analysis (LSA) for predicting coherence through reanalyzing two studies that manipulated coherence of texts and assessed readers' comprehension. Finds that LSA predicts effects of text coherence on comprehension. Notes that LSA can be applied as an automated method that produces coherence predictions similar to…

Notes that memory-based text processing (MBP) is a label that has been used to refer to a theoretical perspective shared by contributors to this special issue. Defines the domain addressed by MBP; identifies the major shared assumptions of researchers representing the MBP perspective; and raises some challenges for MBP researchers. (SR)

Examines the phenomenon of learning on the Internet in terms of a digital ecology metaphor, proposing that an ecological perspective is consistent with the perspective of distributed cognition. Topics include diverse participation; information production, access, and consumption; representations of knowledge; and experiences. (LRW)

Presents three different statistical techniques for identifying content-bearing phrases within a natural language database. Describes results on the effectiveness of the scoring methods when applied to MEDLINE phrases, and how the three methods can be combined to improve performance. Processing results for an example document are provided.…

Extends a Foucauldian view of power/knowledge to the archetypical knowledge-intensive organization, the scientific research laboratory. Describes the discursive production of power/knowledge at the "big science" laboratory conducting nuclear fusion research and illuminates a critical incident in which the fusion research…

Examines an emerging shared metaphor, the business pattern, in the context of the encapsulation of wisdom. Discusses the logical evolution into "business patterns" and offers a more fully-realized template to illustrate the intent and to provide a framework for future development. Provides a prototypical example of a documented business pattern…

Describes the following sessions: "Knowledge Management: A Celebration of Humans Connected with Quality Information Objects (Plenary Session 1); "Intellectual Property Rights and the Emerging Information Infrastructure (Plenary Session 2); and "Knowledge: Creation, Organization and Use (Conference Wrap-up Session). (AEF)