Some diverse fields in which the effects of mental representations have been noticed are first discussed, largely through illustrations of differing problem-solving experiences. Then the LAKOS Project (Logical Analysis of Cognitive Organizational Structures) at the University of Osnabruck is described. A central concern is the specification of a…

Different kinds of basic knowledge and strategies necessary for comprehension are examined in three radically different domains: (1) the stories, (2) mathematical problems, and (3) electronic circuits. From analyzing the comprehension processes in these different domains, similarities have emerged in the role of planning knowledge and the…

Part of a sustained program that has involved the design of personally tailored information systems responsive to the needs of scientists performing common research and teaching tasks, this project focuses on the procedural and content requirements for accomplishing need diagnosis and presents these requirements as specifications for an…

The 34 summaries contained in this collection represent the theoretical positions and the empirical studies of a wide variety of investigators currently working in the field of language comprehension. The entries summarize contributions from the areas of assessment, artificial intelligence, cognition (including schema theory), instruction,…

A major obstacle to the effective educational use of computers is the lack of a natural means of communication between the student and the computer. This report describes a technique for generating such natural language front-ends for advanced instructional systems. It discusses: (1) the essential properties of a natural language front-end, (2)…

This article provides a tutorial introduction to Artificial Intelligence (AI) research for those involved in Computer Assisted Instruction (CAI). The general theme is that much of the current work in AI, particularly in the areas of natural language understanding systems, rule induction, programming languages, and socratic systems, has important…

TORTIS (Toddler's Own Recursive Turtle Interpreter System) is a device which can be used to study or nurture the cognitive development of preschool children. The device consists of a "turtle" which the child can control by use of buttons on a control panel. The "turtle" can be made to move in prescribed directions, to take a…

Studies of natural dialogue indicate that people interact according to established patterns which are organized around the participants' goals. These patterns have been represented by a set of knowledge structures called "Dialogue-games" which are founded on conventional knowledge about communication and its uses to achieve goals. The…

Introduces some general concepts and techniques of artificial intelligence (natural language interfaces, expert systems, knowledge bases and knowledge representation, heuristics, user-interface metaphors, and object-based environments) and investigates ways these techniques might be applied to analysis, design, development, implementation, and…

Summarizes an initial foray in tackling artificial intelligence problems using a connectionist approach. The task chosen is visual recognition of Origami objects, and the questions answered are how to construct a connectionist network to represent and recognize projected Origami line drawings and the advantages such an approach would have. (30…

Reports results of studies with an unsupervised learning paradigm called competitive learning which is examined using computer simulation and formal analysis. When competitive learning is applied to parallel networks of neuron-like elements, many potentially useful learning tasks can be accomplished. (Author)

Describes work with kindergarten children to improve their development of estimation, decision making, divergent thinking, directionality, numerical concepts, and creative problem solving skills through learning to program and control the robot Big Trak, a truck which moves along the floor in response to their commands. (EAO)

Discusses knowledge acquisition and dissemination in a network environment. Obstacles to the electronic exchange of knowledge and functional requirements for knowledge acquisition, dissemination, and management are summarized. A prototype intelligent Internet interface that mediates knowledge acquisition and dissemination and preliminary test…

Describes the integrated Intelligent Tutor, Environment and Manual for Introductory Programing (ITEM/IP), which supports a course on computer programing based on the minilanguage Turingal. Discussion covers system design, including design philosophy, system overview, concepts included and information structure, programing laboratory mode,…

In this study an artificial intelligence assessment tool used disease-by-feature frequency estimates to create disease prototypes for nine common causes of acute chest pain. The tool then used each subject's prototypes and a pattern-recognition-based decision-making mechanism to diagnose 18 myocardial infarction cases. (MLW)