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Search Publications by: Fern Hunt (Assoc)

Displaying 26 - 50 of 66

Dynamic Routing and Congestion Control Through Random Assignment of Routes

July 15, 2008

Author(s)

Fern Y. Hunt, Vladimir V. Marbukh

We introduce an algorithm for maximizing utility through congestion control and random allocation of routes to users. The allocation is defined by a probability distribution whose degree of randomness as measured by its entropy, is controlled. We seek to

Modeling of Photochemical Reactions in a Focused Laser Beam

July 1, 2007

Author(s)

Fern Y. Hunt, Adolfas Gaigalas, Lili Wang

This paper presents a mathematical model of photodegradation of fluorophores passing through a laser beam. The beam is focused on the sample and thus the power distribution of incident light is strongly dependent on spatial location while the fluorophores

Sensitivity of Multiple Sequence Alignments to Perturbations in Cost Matrices

October 12, 2005

Author(s)

Fern Y. Hunt, Agnes A. O'Gallagher

A description of a new method for aligning biological sequences is presented. It is based on a formulation as a Markov decision optimization problem. Alignment is obtained by solving an associated linear programming problem. In this paper we show that the

Techniques for Visualizing the Frequency Patterns in DNA

August 1, 2005

Author(s)

Fern Y. Hunt

A Pathwise Optimality Result For A Class of Unichain Markov Decision Processes

February 1, 2004

Author(s)

Fern Y. Hunt

We begin this expository essay by reviewing with examples what a typical engineer already knows about statistics. We then consider a central question in engineering decision making, i.e., given a computer simulation of high-consequence systems, how do we

Constructing Sequence Alignments from a Markov Decision Model with Estimated Parameter Values

January 1, 2004

Author(s)

Fern Y. Hunt, Anthony J. Kearsley, Agnes A. O'Gallagher

Current methods for aligning biological sequences are based on dynamic programming algorithms. If large numbers of sequences or a number of long ones are to be aligned the required computations are expensive in memory and CPU time. In an attempt to bring

Constructing Sequence Alignments from a Markov Decision Model with Estimated Parameter Values

January 1, 2004

Author(s)

Fern Y. Hunt, Anthony J. Kearsley, Agnes A. O'Gallagher

An Optimization Approach to Multiple Sequence Alignment

July 1, 2003

Author(s)

Fern Y. Hunt, Anthony J. Kearsley, H H Wan

The problem of multiple sequence alignment is recast as an optimization problem using Markov decision theory. One seeks to minimize the expected or average cost of alignment subject to data-derived constraints. In this setting the problem is equivalent to

A Linear Programming Based Algorithm for Multiple Sequence Alignments

February 17, 2003

Author(s)

Fern Y. Hunt, Agnes A. O'Gallagher, Anthony J. Kearsley

A Tutorial on Multiple Sequence Alignment of Biological Sequences

June 17, 2002

Author(s)

Fern Y. Hunt, Anthony J. Kearsley, Agnes A. O'Gallagher

The Role of Rendering in the Competence Project in Measurement Science for Optical Reflection and Scattering

May 1, 2002

Author(s)

H B. Westlund, G W. Meyer, Fern Y. Hunt

Rendering is the process of producing a synthetic image using a computer. The best known application is animation and simulation of scenes for the entertainment industry but recognition of its value as a tool for product design in other areas is increasing

A First Step Toward Photorealistic Rendering of Coated Surfaces and Computer-Based Standards of Appearance

January 1, 2001

Author(s)

Fern Y. Hunt, Egon Marx, G Meyer, Theodore V. Vorburger, P Walker, H Westlund

A First Step Towards Photorealistic Rendering of Coated Surfaces and Computer Based Standards of Appearance

January 1, 2001

Author(s)

Fern Y. Hunt, Egon Marx, G Meyer, Theodore V. Vorburger, P Walker, H Westlund

We seek to explore the feasibility of producing computer graphic images to visualize the color and gloss of surfaces using optical and surface topographical data.