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Fast Perceptual Learning in Visual Hyperacuity
(1991-12-01)
In many different spatial discrimination tasks, such as in determining the sign of the offset in a vernier stimulus, the human visual system exhibits hyperacuity-level performance by evaluating spatial relations with the ...
Maxwell's Demon, Rectifiers, and the Second Law: Computer Simulation of Smoluchowski's Trapdoor
(1991-09-01)
We have simulated numerically an automated Maxwell's demon inspired by Smoluchowski's ideas of 1912. Two gas chambers of equal area are connected via an opening that is covered by a trapdoor. The trapdoor can open to ...
Review of Artificial Muscle Based on Contractile Polymers
(1991-11-01)
An artificial muscle with strength and speed equal to that of a human muscle may soon be possible. Polymer gels exhibit abrubt volume changes in response to variations in their external conditions -- shrinking or ...
Calculation of Blocking Probabilities in Multistage Interconnection Networks with Redundant Paths
(1991-12-01)
The blocking probability of a network is a common measure of its performance. There exist means of quickly calculating the blocking probabilities of Banyan networks; however, because Banyan networks have no redundant ...
Dynamic Model and Control of an Artificial Muscle Based on Contractile Polymers
(1991-11-01)
A dynamic model and control system of an artificial muscle is presented. The artificial muscle is based on a contractile polymer gel which undergoes abrupt volume changes in response to variations in external conditions. ...
Motivated Action Theory: A Formal Theory of Causal Reasoning
(1991-12-01)
When we reason about change over time, causation provides an implicit preference: we prefer sequences of situations in which one situation leads causally to the next, rather than sequences in which one situation follows ...
Systematic Nonlinear Planning
(1991-12-01)
This paper presents a simple, sound, complete, and systematic algorithm for domain independent STRIPS planning. Simplicity is achieved by starting with a ground procedure and then applying a general and independently ...
Basis Reduction Algorithms and Subset Sum Problems
(1991-06-01)
This thesis investigates a new approach to lattice basis reduction suggested by M. Seysen. Seysen's algorithm attempts to globally reduce a lattice basis, whereas the Lenstra, Lenstra, Lovasz (LLL) family of reduction ...
Program Improvement by Automatic Redistribution of Intermediate Results
(1991-02-01)
Introducing function sharing into designs allows eliminating costly structure by adapting existing structure to perform its function. This can eliminate many inefficiencies of reusing general componentssin specific ...
Planning multisentential English text using communicative acts
(University of Cambridge, 1991-11-12)
The goal of this research is to develop explanation presentation mechanisms for knowledge based
systems which enable them to define domain terminology and concepts, narrate events, elucidate plans,
processes, or propositions ...