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Now showing items 21-30 of 54
Understanding in Incomplete Worlds
(1978-05-01)
Most real world domains differ from the micro-worlds traditionally used in A.I. in that they have an incomplete factual database which changes over time. Understanding in these domains can be thought of as the generation ...
Photometric Stereo
(1978-06-01)
Traditional stereo techniques determine range by relating two images of an object viewed from different directions. If the correspondence between picture elements is known, then distance to the object can be calculated ...
Analysis of Synthetic Students as a Model of Human Behavior
(1978-05-01)
The research described in this report is an attempt to evaluate the educational effects of a computer game known as Wumpus. A set of five synthetic computer students was taken as a model of the progress of real students ...
A Three Valued Truth Maintenance System
(1978-05-01)
Truth maintenance systems have been used in recently developed problem solving systems. A truth maintenance system (TMS) is designed to be used by deductive systems to maintain the logical relations among the beliefs ...
Destriping Satellite Images
(1978-03-01)
Before satellite images obtained with multiple image sensors can be used in image analysis, corrections must be introduced for the differences in transfer functions on these sensors. Methods are here presented for ...
Comparative Schematology
(1978-05-01)
While we may have the intuitive idea of one programming language having greater power than another, or of some subset of a language being an adequate "core" for that language, we find when we try to formalize this ...
Modeling Semantic Memory: Effects of Presenting Semantic Information in Different Modalities
(1978-04-01)
How is semantic information from different modalities integrated and stored? If related ideas are encountered in French and English, or in pictures and sentences, is the result a single representation in memory or two ...
Shaded Perspective Images of Terrain
(1978-03-01)
In order to perform image analysis, one must have a thorough understanding of how images are formed. This memo presents an algorithm that produces shaded perspective images of terrain as a vehicle to understanding the ...
A Glimpse of Truth Maintenance
(1978-02-01)
Many procedurally-oriented problem solving systems can be viewed as performing a mixture of computation and deduction, with much of the computation serving to decide what deductions should be made. This results in ...
Programming Viewed as an Engineering Activity
(1978-01-01)
It is profitable to view the process of writing programs as an engineering activity. A program is a deliberately contrived mechanism constructed from parts whose behaviors are combined to produce the behavior of the ...