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A Primal Simplex Approach to Pure Processing Networks
Management Science, 1986Pure processing network problems are minimum cost flow problems in which the flow entering or leaving a node may be constrained to do so in given proportions. In this paper, new theoretical results concerning pure processing networks are developed, and, based on these results, two new primal simplex variants are presented.
Chou-Hong J. Chen, Michael Engquist
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Solving Piecewise-Linear Programs: Experiments with a Simplex Approach
ORSA Journal on Computing, 1992We report tests of CPLP, a piecewise-linear simplex implementation based on the XMP subroutine library. Using test problems of various shapes and origins, we judge CPLP against a comparable linear bounded-variable simplex code that is applied to equivalent linear programs.
Robert Fourer, Roy E. Marsten
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Geometric approach to statistical analysis on the simplex
Stochastic Environmental Research and Risk Assessment, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pawlowsky-Glahn, V., Egozcue, J. J.
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A Simplex Approach to the Optimum Determination of the Domain of Attraction
IMA Journal of Mathematical Control and Information, 1988A class of nonlinear autonomous systems is considered in \(R^ n\). The problem is to determine the region of asymptotic stability or domain of attraction (DOA). The approach is based on Lyapunov's indirect method but the a priori requirements to define the structure of the Lyapunov function are avoided.
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A simple approach to the simplex method
Chemia Analityczna, 2008Zasady metody planowania sympleksowego, odniesione do przestrzeni n-wymiarowej (n-D), są zaprezentowane z użyciem pojęcia iloczynu skalarnego, znanego z algebry elementarnej. Elementy macierzy planowania sympleksowego, odniosione do przestrzeni n-D, są otrzymane na podstawie prostych obliczeń.
Tadeusz Michałowski +2 more
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A nonlinear simplex search approach for multi-objective optimization
2011 IEEE Congress of Evolutionary Computation (CEC), 2011This paper proposes an algorithm for dealing with nonlinear and unconstrained multi-objective optimization problems (MOPs). The proposed algorithm adopts a nonlinear simplex search scheme in order to obtain multiple approximations of the Pareto optimal set. The search is directed by a well-distributed set of weighted vectors.
Saúl Zapotecas Martínez +2 more
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The clinical approach to managing herpes simplex virus encephalitis
British Journal of Hospital Medicine, 2018This article explains the approach to managing a patient with herpes simplex virus encephalitis. Acute encephalopathy is a common and often intimidating presentation in an acute general medical setting. Application of key principles will enable the generalist to take life-saving action before obtaining any specialist input.
Christopher B, Leahy +2 more
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A simple heuristic approach to simplex efficiency
European Journal of Operational Research, 1982Abstract Consider the standard linear program: Minimize cx subject to Ax=b, x⩾0 where A is an m × n matrix. The simplex algorithm solves this linear program by moving from an extreme point of the feasibility region to a better (in terms of the objective function cx ) extreme point (via the pivot operation) until the optimal is ...
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A simplex-based approach to implement dimension independent spatial analyses
Computers & Geosciences, 2010Many applications in geosciences need to deal with 3D objects. For this, among other requirements, 2D spatial analyses must be extended to support 3D objects. This extension is an important research topic in GIS and computational geometry. Approaches that extend an existing algorithm for a 2D spatial analysis to work for 3D or higher dimensions lead to
Farid Karimipour +2 more
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A semiparametric Bayesian approach to simplex regression model with heterogeneous dispersion
Communications in Statistics - Simulation and Computation, 2018ABSTRACTSimplex regression model is often employed to analyze continuous proportion data in many studies.
Xing-De Duan +2 more
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