Search Results for "revised simplex method"
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Showing 18 open source projects for "revised simplex method"
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Data Envelopment Analysis using Stata
Unified Data Envelopment Analysis commands for Stata
...It consolidates sixteen DEA model families into one interface, keeps backward compatibility with the original inputs = outputs syntax, and adds a fast Mata two-phase revised simplex engine alongside Stata's LinearProgram() IPM engine. The package supports radial technical efficiency (CCR/BCC), SBM, additive model, radial and SBM super-efficiency, multiplier form, directional distance function, cost, revenue, profit, allocative efficiency, FDH, imprecise DEA, undesirable outputs, SBM with undesirable outputs, and congestion analysis. ... -
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Prompt-to-Prompt
Latent Diffusion and Stable Diffusion Implementation
...Instead of retraining or heavy fine-tuning, it manipulates the model’s cross-attention maps so the structure of the original image is largely preserved while semantics shift according to the revised prompt. The method supports gentle edits (e.g., style, color, lighting) as well as stronger semantic substitutions, and it can localize edits to specific words or regions by selectively updating attention. Because edits are steerable via prompt wording and token weighting, creators can iterate quickly, exploring variations without losing composition. ... -
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AeroPython
Classical Aerodynamics of potential flow using Python
The AeroPython series of lessons is the core of a university course (Aerodynamics-Hydrodynamics, MAE-6226) by Prof. Lorena A. Barba at the George Washington University. The first version ran in Spring 2014 and these Jupyter Notebooks were prepared for that class, with assistance from Barba-group PhD student Olivier Mesnard. In Spring 2015, we revised and extended the collection, adding student assignments to strengthen the learning experience. The course is also supported by an open learning... -
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popt4jlib
Parallel Optimization Library for Java
...Implements a number of meta-heuristic algorithms for Non-Linear Programming, including Genetic Algorithms, Differential Evolution, Evolutionary Algorithms, Simulated Annealing, Particle Swarm Optimization, Firefly Algorithm, Monte-Carlo Search, Local Search algorithms, Gradient-Descent-based algorithms, as well as some well-known network flow and other graph algorithms. A fast parallel implementation of the network simplex method, and some full-fledged parallel/distributed MIP solvers will be added in the next version. In general, emphasis is given in improving the efficiency of the algorithms in shared-memory models via java threads, since multi-core machines are so wide-spread today. -
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Satsuma .NET Graph Library
a delicious .NET graph library
Satsuma is a graph library for .NET, written in C#. Satsuma is an easy-to-use and flexible library, which implements all the necessary graph structures, and the fastest possible graph algorithms. DOCUMENTATION: http://satsumagraph.sourceforge.net/ Satsuma is not a charting library. 'Graph' is used in the mathematical sense here (e.g. nodes connected with arcs). Satsuma is released under the zlib license. This license is very permissive and allows you to use Satsuma for both personal... -
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CQU
Decision solver for Counting Quantifiers over Unary Predicates
...It also emplouys COIN-OR Clp linear programming solver, and inherit from it. Given a CQUSAT instance in normal form as input, the program returns a solution, if there is one. The implemented method employs dual Simplex Algorithm with Column Generation. At each iteration, a SAT instance is generated and a SAT Solver (minisat) decides its satisfiability. Details about CQUSAT, its normal form and this turing reduction can be found in the paper "CQUSAT.pdf" that comes with this package. For more information, see the README file. -
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K-Level 2.0 [revised]
An application of leveling network adjustment using Matlab
This is an application of leveling network adjustment based on Matlab. The method used in this application is least square adjustment. User can enter the leveling data directly or by reading a text file. -
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GeoStrain
Geodynamic strain analysis software
...The advantage of the software is that it can optionally consider the effect of vertical velocity on the strain rates. This is principally important for areas where the vertical velocity is the major signal compared to horizontal velocity. Note: A revised code for functionality on MATLAB 2024a for Macs is available at: https://zenodo.org/records/16950985 (thanks to Dr. Sarah Stamps for sharing the code). -
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simplex with branch and bound
A tool for teaching simplex and branch & bound methods
This is a tool for teaching simplex and branch & bound methods. For simplex method, it comes with several examples including degeneracy and cycling, and allow the user to dictate how to pivot. For branch and bound method, it is desinged to interact with the user to explore all possible branch and bound trees. The user can also load a problem from a text file or simply type in a model directly. -
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Simplex-in-PHP are PHP scripts that solve small linear programming and integer linear programming problems executing the simplex method step by step, printing the tableau and drawing the graphical analysis. Useful for students in Operational Research
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Software to solve Linear Programming problems applying the Revised Simplex Algorithm (2-Phase Method) and performing a Sensitivity Analysis too.
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This application help to understand and/or check the result of a single iteration in the simplex method.
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This program is implementation of dual simplex method implemented with java applet. Source code is given free. Authors: Gaziz Tazhenov and Ivan Melnikov
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The AgendaNutricional software uses Simplex Method (provided by CLP component) to calculate which product will be part of a dietetic prescription, based upon the nutrients needed for daily consumption. See "Documentation" for more info.
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This program is used to optimize matrices with the Vogel method. It calculates the optimal amount of transport between a given supply and a given demand. There is a command line and a graphical GTK version.
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