In this thesis, we study the importance of background knowledge in relation extraction systems. We not only demonstrate the benefits of leveraging background knowledge to improve the systems' performance but also propose a principled framework that allows one to effectively incorporate knowledge into statistical machine learning models for…

Since the designer of interactive materials must ensure that the learner is directed to the information that he will be expected to acquire, he must recognize the components of the delivery system employed and the process by which they interact to deliver the information. (Author/RAO)

The need for traps, a program routine which checks the validity of the user's response to the computer's request for input, in Computer Assisted Learning Packages, is discussed. Several example traps are described. (MK)

Describes computer program which converts text of user input and system responses from online search system into fixed format records describing interaction. Query language syntax, format of output record produced by parser, problems in constructing parser, its performance characteristics, and recommendations for improving process of logging…

A translating-computer-interface approach to providing a common, or virtual-system, mode of access to a network of heterogeneous online bibliographic retrieval systems has been investigated. Enhanced access to such systems by end users has been demonstrated through test usage of an experimental interface. A table-driven, rule-based message…

Four different methods for inputting enemy situation data--(1) typing, (2) typing with error correction, (3) menus (choosing appropriate entry from a list), and (4) typing with autocompletion and an English option--were compared for speed, accuracy, and ease of use. Thirty-two enlisted men and women, none of whom had used the inputting techniques…

This document proceeds from the model presented in ED 088 147 outlining in general form some of the issues and needs in a management information system (MIS) for the National Institute of Education (NIE). This report discusses management information issues and needs more concretely. The discussion is related to planning, developing, and operating…

This is a working paper which seeks to examine how information about approximately 900 occupations might be utilized and kept up to date. The discussion centers on a modular system for information treatment. The paper elaborates on: (1) how and what kinds of information will be put into the system; and (2) five different modes of operation for…

In man-computer communication, the computer responds only as it is programed to respond. A human's response is more complicated because it depends on the "pre-programed" ways that humans process information. The three functions a man performs on received information are conservation (in which messages are retained whole), reduction (in which…

This university level course in economic geography emphasizes the need for control of the spatial allocation of our resources, and strives for heightened student awareness of the world as a complex. It may thus be considered an introduction to geocybernetics, the study of man/machine relationships in the control of spatial organization. A systems…