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Other Computer Engineering

2001

Articles 1 - 3 of 3

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Identification Of Shapes Using A Nonlinear Dynamic System, Shaheen Hoque, Sanza Kazadi, Angel Li, Will Chen, Elvio Sadun Jun 2001

Identification Of Shapes Using A Nonlinear Dynamic System, Shaheen Hoque, Sanza Kazadi, Angel Li, Will Chen, Elvio Sadun

Sanza Kazadi

We describe a nonlinear system capable of use as a recognition system. This system is composed of a set of coupled oscillators, connected by linear springs. Images are overlaid on the system by altering the masses and spring constants of the oscillators, thereby modifying the detailed behavior of the system. Signatures extracted from the system using FFT of the individual oscillator positions show coherance, relative continuity, and translational and rotational invariance. These properties are discussed in the context of the eventual use of this system as a general identification system.

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The Other Information Warfare: A Mind Full Of Macedonia, Ibpp Editor Mar 2001

The Other Information Warfare: A Mind Full Of Macedonia, Ibpp Editor

International Bulletin of Political Psychology

This article highlights ongoing aspects of psychological warfare in Macedonia between government and rebel forces.

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Modal Rules Are Co-Implications, Alexander Kurz Jan 2001

Modal Rules Are Co-Implications, Alexander Kurz

Engineering Faculty Articles and Research

In [13], it was shown that modal logic for coalgebras dualises—concerning definability— equational logic for algebras. This paper establishes that, similarly, modal rules dualise implications:It is shown that a class of coalgebras is definable by modal rules iff it is closed under H (images) and Σ (disjoint unions). As a corollary the expressive power of rules of infinitary modal logic on Kripke frames is characterised.

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