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The Variational Approach to Shape from Shading
(1985-03-01)
We develop a systematic approach to the discovery of parallel iterative schemes for solving the shape-from-shading problem on a grid. A standard procedure for finding such schemes is outlines, and subsequently used ...
The Use of Censors for Nonmonotonic Reasoning and Analogy in Medical Desicion-Making
(1985-11-01)
A patient rarely has a single, isolated disease. The situation is usually much more complex since the different parts of the human organism and metabolism interact with each other and follow several feedback patterns. ...
Biophysics of Computation: Neurons, Synapses and Membranes
(1984-10-01)
Synapses, membranes and neurotransmitters play an important role in processing information in the nervous system. We do not know, however, what biophysical mechanisms are critical for neuronal computations, what ...
Hypothesizing and Refining Causal Models
(1984-12-01)
An important common sense competence is the ability to hypothesize causal relations. This paper presents a set of constraints which make the problem of formulating causal hypotheses about simple physical systems a ...
On the Complexity of ID/LP Parsing
(1984-12-01)
Recent linguistic theories cast surface complexity as the result of interacting subsystems of constraints. For instance, the ID/LP grammar formalism separates constraints on immediate dominance from those on linear ...
Toward a Principle-Based Parser
(1984-07-01)
Parser design lags behind linguistic theory. While modern transformational grammar has largely abandoned complex, language-specific rule systems in favor of modular subsystems of principles and parameters, the rule ...
What a Parallel Programming Language Has to Let You Say
(1984-09-01)
We have implemented in simulation a prototype language for the Connection Machine called CL1. CL1 is an extrapolation of serial machine programming language technology: in CL1 one programs the individual processors ...
Surface Reconstruction Preserving Discontinuities
(1984-08-01)
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 known ...
Kinematic Features of Unrestrained Arm Movements
(1984-07-01)
Unrestrained human arm trajectories between point targets have been investigated using a three dimensional tracking apparatus, the Selspot system. Movements were executed between different points in a vertical plane ...
ARIADNE: Pattern-Directed Inference and Hierarchical Abstraction in Protein Structure Recognition
(1987-05-01)
There are many situations in which a very detailed low-level description encodes, through a hierarchical organization, a recognizable higher-order pattern. The macro-molecular structural conformations of proteins exhibit ...