Now showing items 1-10 of 62
Facets of an Assignment Problem with 0–1 Side Constraint
(Kluwer Academic Publishers; Springer Science+Business Media, 2000-09)
We show that the problem of finding a perfect matching satisfying a single equality constraint with a 0–1 coefficients in an n × n incomplete bipartite graph, polynomially reduces to a special case of the same peoblem ...
Implementing pure adaptive search for global optimization using Markov chain sampling
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-05)
The Pure Adaptive Search (PAS) algorithm for global optimization yields a sequence of points, each of which is uniformly distributed in the level set corresponding to its predecessor. This algorithm has the highly desirable ...
Costlets: A Generalized Approach to Cost Functions for Automated Optimization of IMRT Treatment Plans
(Kluwer Academic Publishers; Springer Science + Business Media, Inc., 2005-12)
We present the creation and use of a generalized cost function methodology based on costlets for automated optimization for conformal and intensity modulated radiotherapy treatment plans. In our approach, cost functions ...
Use of a Computerized Decision Support System for Primary and Secondary Prevention of Work-Related MSD Disability
(Kluwer Academic Publishers-Plenum Publishers; Springer Science + Business Media, Inc., 2005-09)
The present study evaluates the effectiveness of a decision support system used to evaluate and control physical job stresses and prevent re-injury of workers who have experienced or are concerned about work-related ...
Modeling and analysis of multi‐stage transfer lines with unreliable machines and finite buffers
(Kluwer Academic Publishers; Springer Science+Business Media, 2000-01)
This paper models and analyzes multi‐stage transfer lines with unreliable machines and finite buffers. The machines have exponential operation, failure, and repair processes. First, a mixed vector–scalar Markov process ...
A Finite Algorithm for Solving Infinite Dimensional Optimization Problems
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-01)
We consider the general optimization problem ( P ) of selecting a continuous function x over a σ-compact Hausdorff space T to a metric space A , from a feasible region X of such functions, so as to minimize a functional c ...
A novel modeling approach for express package carrier planning
(Wiley Subscription Services, Inc., A Wiley Company, 2008-10)
Express package carrier networks have large numbers of heavily-interconnected and tightly-constrained resources, making the planning process difficult. A decision made in one area of the network can impact virtually any ...
Datum transformation analysis for production part approval using 3D non-contact measurement
(University of Michigan, Ann Arbor, Transportation Research Institute, 2008-06)
This paper presents a comprehensive dimensional validation methodology, known as datum transformation analysis (DTA). The DTA approach utilizes 3D non-contact (3DNC) measurement to obtain a full part dimensional representation ...
Human motion simulation for vehicle and workplace design
(Wiley Subscription Services, Inc., A Wiley Company, 2007-09)
Digital Human Models (DHMs) are fast becoming an effective tool for performing proactive ergonomics analysis and design. DHM software, such as Jack, SAFEWORK, RAMSIS, SAMMIE, and the UM 3DSSP, are meant to assist a designer ...
Call Center Staffing with Simulation and Cutting Plane Methods
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-03)
We present an iterative cutting plane method for minimizing staffing costs in a service system subject to satisfying acceptable service level requirements over multiple time periods. We assume that the service level cannot ...