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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 ...
A Comparison of PARSIFAL with Augmented Transition Networks
(1978-03-01)
This paper compares Marcus' parser, PARSIFAL with Woods' Augmented Transition Network (ATN) parser. In particular, the paper examines the two parsers in light of Marcus' Determinism Hypothesis. An overview of each ...
A Glimpse of Truth Maintenance
(1978-11-01)
To choose their actions, reasoning programs must be able to draw conclusions from limited information and subsequently revise their beliefs when discoveries invalidate previous assumptions. A truth maintenance system ...
LANDSAT MSS Coordinate Transformations
(1978-02-01)
A number of image analysis tasks require the registration of a surface model with an image. In the case of satellite images, the surface model may be a map or digital terrain model in the form of surface elevations on ...
Learning Disjunctive Concepts From Examples
(1979-09-01)
This work proposes a theory for machine learning of disjunctive concepts. The paradigm followed is one of teaching and testing, where the teaching is accomplished by presenting a sequence of positive and negative ...
An Outlook on Truth Maintenance
(1980-08-01)
Truth maintenance systems have been used in several recent problem solving systems to record justifications for deduced assertions, to track down the assumptions which underlie contradictions when they arise, and to ...
Instrumental With and the Control Relation in English
(1979-11-01)
This paper explores the nature of the underlying representation of a sentence, that representation formulated to make explicit the semantic structure of a sentence as a description of an event. It argues that the ...
Final Report of the Brookline LOGO Project. Part III: Profiles of Individual Student's Work
(1979-09-01)
During the school year 1977/78 four computers equipped with LOGO and Turtle Graphics were installed in an elementary school in Brookline, Mass. All sixth grade students in the school had between 20 and 40 hours of ...
Toward a Remotely-Manned Energy and Production Economy
(1979-09-01)
We can solve many problems of Energy, Health, Productivity, and Environmental Quality by improving the technology of remote control. This will produce Nuclear Safety and Security, Advances in Mining, Increases in ...
Mechanical Arm Control
(1979-10-01)
This paper discusses three main problems associated with the control of the motion of a mechanical arm. 1) Transformation between different coordinate systems associated with the arm. 2) Calculation of detailed ...