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Semantic Support for Work in Organizations
(1983-04-01)
Present day computer systems cannot implement much of the work carried out in organizations such as: planning, decision making, analysis, and dealing with unanticipated situations. Such organizational activities have ...
Wrist-Partitioned Inverse Kinematic Accelerations and Manipulator Dynamics
(1983-04-01)
An efficient algorithm is presented for the calculation of the inverse kinematic accelerations for a 6 degree-of-freedom manipulator with a spherical wrist. The inverse kinematic calculation is shown to work synergistically ...
Zero-Crossings on Lines of Curvature
(1984-12-01)
We investigate the relations between the structure of the image and events in the geometry of the underlying surface. We introduce some elementary differential geometry and use it to define a coordinate system on the ...
Understanding Text through Summarization and Analogy
(1983-04-01)
Understanding a text exactly in the way that the Text Producer meant the text to be understood is highly unlikely unless the text interpretation process is constrained. Specific understanding-directing criteria are ...
Variable Precision Logic
(1985-08-01)
Variable precision logic is concerned with problems of reasoning with incomplete information and under time constraints. It offers mechanisms for handling trade-offs between the precision of inferences and the ...
Sensing Strategies for Disambiguating Among Multiple Objects in Known Poses
(1985-08-01)
The need for intelligent interaction of a robot with its environment frequently requires sensing of the environment. Further, the need for rapid execution requires that the interaction between sensing and action take ...
PP: A LISP Pretty Printing System
(1984-12-01)
The PP system provides an efficient implementation of the Common Lisp pretty printing function PPRINT. In addition, PP goes beyond ordinary pretty printers by providing mechanisms which allow the user to control the ...
The Computational Complexity of Two-Level Morphology
(1985-11-01)
Morphological analysis requires knowledge of the stems, affixes, combnatory patterns, and spelling-change processes of a language. The computational difficulty of the task can be clarified by investigating the computational ...
Shape and Source from Shading
(1985-01-01)
Well-known methods for solving the shape-from-shading problem require knowledge of the reflectance map. Here we show how the shape-from-shading problem can be solved when the reflectance map is not available, but is ...
Direct Passive Navigation
(1985-02-01)
In this paper, we show how to recover the motion of an observer relative to a planar surface directly from image brightness derivatives. We do not compute the optical flow as an intermediate step. We derive a set of ...