An analysis to ascertain which electronic data processing (EDP) systems are most flexible in processing wide ranges of volumes efficiently. A simulation model of the job environment of three common EDP systems provides information on the shape of their cost functions in the neighborhood of optimality. (Author/LS)

The computational model of question answering proposed by a computer program, QUALM, is a theory of conceptual information processing based on models of human memory organization. It has been developed from the perspective of natural language processing in conjunction with story understanding systems. The processes in QUALM are divided into four…

This report describes digital computer simulation efforts in a study of memory systems for two important cases: that of the individual the brain; and that of society, the library. A neural system model is presented in which a complex system is produced by connecting simple hypothetical neurons whose states change under application of a…

A typical school spelling task is analyzed in terms of an information processing model of spelling performance. (Author)

A sophisticated modeling technique which predicts pollutant movement accurately and may aid in the design of new freeways is reported. EXPLOR (Examination of Pollution Levels of Roadways) was developed specifically to predict pollutant concentrations in a milewide corridor traversed by a roadway. (BL)

This report describes several of the design decisions underlying ACT, a production system model of human cognition. ACT can be considered a high level computer programming language as well as a theory of the cognitive mechanisms underlying human information processing. ACT design decisions were based on both psychological and artificial…

The goal of the present project was to identify the types of knowledge necessary and useful for competent troubleshooting/debugging and to examine how new approaches to formal instruction might influence the attainment of competence by students. The research focused on the role of general strategies in troubleshooting/debugging, and how they might…

The report documents performance on a 24-month R&D effort oriented toward the development of a computerized model for machine translation of natural languages. The model is built around a set of procedures called verbalization, intended to stimulate the processes employed by a speaker or writer in turning stored information into words.…

A digital simulation of a model for the processing of visual images is derived from known aspects of the human visual system. The fundamental principle of computation suggested by a biological model is a transformation that distributes information contained in an input stimulus everywhere in a transform domain. Each sensory input contributes under…

A digital computer based biomedical information system was designed to service the needs of physicians engaged in patient care and clinical research, and scientists engaged in laboratory research. The system embraces all functions of information processing which include information collection, storage, retrieval, analyses and display. The…

This report summarizes Project IMPACT activities in fiscal year 1968. The goal of the project is to develop a computer-assisted instruction (CAI) training system in the COBOL language for the U.S. Army. Following an introduction, the report explains the instructional decision model which is used with an interactive computer system. The hardware…

For the benefit of administrators and instructors, individualized instruction and the role of computers in managing it are outlined. Structural components of individualized instructional programs are identified, and the process of individualized instruction is described. A review of major computer-managed instructional (CMI) systems is provided,…

The technical objective of this research was to develop a computer method for arranging a number of individual task patterns, representing job incumbents in a given occupational area, into groups or clusters. This advanced computerized technique for clustering work tasks produces homogeneous clusters of task patterns using an input of tasks…