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Extensions of a Theory of Networks for Approximation and Learning: Dimensionality Reduction and Clustering
(1990-04-01)
The theory developed in Poggio and Girosi (1989) shows the equivalence between regularization and a class of three-layer networks that we call regularization networks or Hyper Basis Functions. These networks are also ...
Fast, Cheap and Out of Control
(1989-12-01)
Spur-of-the-moment planetary exploration missions are within our reach. Complex systems and complex missions usually take years of planning and force launches to become incredibly expensive. We argue here for cheap, ...
Location Recognition Using Stereo Vision
(1989-10-01)
A mobile robot must be able to determine its own position in the world. To support truly autonomous navigation, we present a system that builds and maintains its own models of world locations and uses these models to ...
Stereo Feature Matching in Disparity Space
(1989-09-01)
This paper describes a new method for matching, validating, and disambiguating features for stereo vision. It is based on the Marr-Poggio- Grimson stereo matching algorithm which uses zero-crossing contours in ...
Consensus Knowledge Acquisition
(1989-12-01)
We have developed a method and prototype program for assisting two experts in their attempts to construct a single, consensus knowledge base. We show that consensus building can be effectively facilitated by a debugging ...
How to Do the Right Thing
(1989-10-01)
This paper presents a novel approach to the problem of action selection for an autonomous agent. An agent is viewed as a collection of competence modules. Action selection is modeled as an emergent property of an ...
Optimization of Series Expressions: Part I: User's Manual for the Series Macro Package
(1989-01-01)
The benefits of programming in a functional style are well known. In particular, algorithms that are expressed as compositions of functions operating on series/vectors/streams of data elements are much easier to understand ...
Computational Structure of the N-body Problem
(1988-04-01)
This work considers the organization and performance of computations on parallel computers of tree algorithms for the N-body problem where the number of particles is on the order of a million. The N-body problem is ...
Exploiting Lexical Regularities in Designing Natural Language Systems
(1988-04-01)
This paper presents the lexical component of the START Question Answering system developed at the MIT Artificial Intelligence Laboratory. START is able to interpret correctly a wide range of semantic relationships associated ...
Intelligent Assistance for Program Recognition, Design, Optimization, and Debugging
(1989-01-01)
A recognition assistant will help reconstruct the design of a program, given only its source code. A design assistant will assist a programmer by detecting errors and inconsistencies in his design choices and by ...