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Solving the Find-Path Problem by Representing Free Space as Generalized Cones
(1982-05-01)
Free space is represented as a union of (possibly overlapping) generalized cones. An algorithm is presented which efficiently finds good collision free paths for convex polygonal bodies through space littered with ...
Learning Physical Descriptions from Functional Definitions, Examples, and Precedents
(1982-11-01)
It is too hard to tell vision systems what things look like. It is easier to talk about purpose and what things are for. Consequently, we want vision systems to use functional descriptions to identify things when ...
CAULDRONS: An Abstraction for Concurrent Problem Solving
(1986-09-01)
This research extends a tradition of distributed theories of mind into the implementation of a distributed problem solver. In this problem solver a number of ideas from Minsky's Society of Mind are implemented and are ...
The Relation Between Proximity and Brightness Similarity in Dot Patterns
(1982-05-01)
The Gestalt studies demonstrated the tendency to visually organize dots on the basis of similarity, proximity, and global properties such as closure, good continuation, and symmetry. The particular organization imposed ...
A Primer for the Act-1 Language
(1982-04-01)
This paper describes the current design for the Act-1 computer programming language and describes the Actor computational model, which the language was designed to support. It provides a perspective from which to view ...
A Three-Step Procedure for Language Generation
(1980-12-01)
This paper outlines a three-step plan for generating English text from any semantic representation by applying a set of syntactic transformations to a collection of kernel sentences. The paper focuses on describing a ...
The Design Procedure Language Manual
(1980-09-01)
This manual describes the Design Procedure Language (DPL) for LSI design. DPL creates and maintains a representation of a design in a hierarchically organized, object-oriented LISP data-base. Designing in DPL involves ...
Fundamental Scheme for Train Scheduling
(1980-09-01)
Traditionally, the compilation of long-term timetables for high-density rail service with multiple classes of trains on the same track is a job for expert people, not computers. We propose an algorithm that uses the ...
Extending a Powerful Idea
(1980-07-01)
Mathematics is much more than the manipulation of numbers. At its best, it involves simple, clear examples of thought so apt to the world we live in that those examples provide guidance for our thinking about problems ...
Interfacing the One-Dimensional Scanning of an Image with the Applications of Two-Dimensional Operators
(1980-04-01)
To interface between the one-dimensional scanning of an image, and the applications of a two-dimensional operator, an intermediate storage is required. For a square image of size n2, and a square operator of size m2, ...