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Organizing a Global Coordinate System from Local Information on an Amorphous Computer
(1999-08-29)
This paper demonstrates that it is possible to generate a reasonably accurate coordinate system on randomly distributed processors, using only local information and local communication. By coordinate systems we imply ...
Trans-membrane Signal Transduction and Biochemical Turing Pattern Formation
(1999-09-28)
The Turing mechanism for the production of a broken spatial symmetry in an initially homogeneous system of reacting and diffusing substances has attracted much interest as a potential model for certain aspects of ...
Nonparametric Belief Propagation and Facial Appearance Estimation
(2002-12-01)
In many applications of graphical models arising in computer vision, the hidden variables of interest are most naturally specified by continuous, non-Gaussian distributions. There exist inference algorithms for discrete ...
Amorphous Computing
(1999-08-29)
Amorphous computing is the development of organizational principles and programming languages for obtaining coherent behaviors from the cooperation of myriads of unreliable parts that are interconnected in unknown, ...
Co-dimension 2 Geodesic Active Contours for MRA Segmentation
(1999-08-11)
Automatic and semi-automatic magnetic resonance angiography (MRA)s segmentation techniques can potentially save radiologists larges amounts of time required for manual segmentation and cans facilitate further data analysis. ...
Boosting Image Database Retrieval
(1999-09-10)
We present an approach for image database retrieval using a very large number of highly-selective features and simple on-line learning. Our approach is predicated on the assumption that each image is generated by a ...
Multiple Scales in Small-World Networks
(1999-08-11)
Small-world architectures may be implicated in a range of phenomena from networks of neurons in the cerebral cortex to social networks and propogation of viruses. Small-world networks are interpolations of regular and ...
Leaderless Distributed Hierarchy Formation
(2002-12-01)
I present a system for robust leaderless organization of an amorphous network into hierarchical clusters. This system, which assumes that nodes are spatially embedded and can only talk to neighbors within a given radius, ...
Interactive Supercomputing with MIT Matlab
(1998-07-28)
This paper describes MITMatlab, a system that enables users of supercomputers or networked PCs to work on large data sets within Matlab transparently. MITMatlab is based on the Parallel Problems Server (PPServer), a ...
A Comparative Analysis of Reinforcement Learning Methods
(1991-10-01)
This paper analyzes the suitability of reinforcement learning (RL) for both programming and adapting situated agents. We discuss two RL algorithms: Q-learning and the Bucket Brigade. We introduce a special case of the ...