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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 ...
Defining Natural Language Grammars in GPSG
(1986-04-01)
This paper is a formal analysis of whether generalized phrase structure grammar's (GPSG) weak context-free generative power will allow it to achieve three of its central goals: (1) to characterize all and only the ...
Discovery Systems
(1986-04-01)
Cyrano is a thoughtful reimplementation of Lenat's controversial Eurisko program, designed to perform automated discovery and concept formation in a variety of technical fields. The 'thought' in the reimplementation ...
An Approach To Object Recognition: Aligning Pictorial Descriptions
(1986-12-01)
This paper examines the problem of shape-based object recognition and proposes a new approach, the alignment of pictorial descriptions. The first part of the paper reviews general approaches to visual object recognition ...