/usr/include/oce/math_PSO.hxx is in liboce-foundation-dev 0.17.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Created by: Alexander Malyshev
// Copyright (c) 2014-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _math_PSO_HeaderFile
#define _math_PSO_HeaderFile
#include <math_BullardGenerator.hxx>
#include <math_MultipleVarFunction.hxx>
#include <math_Vector.hxx>
class math_PSOParticlesPool;
//! In this class implemented variation of Particle Swarm Optimization (PSO) method.
//! A. Ismael F. Vaz, L. N. Vicente
//! "A particle swarm pattern search method for bound constrained global optimization"
class math_PSO
{
public:
/**
* Constructor.
*
* @param theFunc defines the objective function. It should exist during all lifetime of class instance.
* @param theLowBorder defines lower border of search space.
* @param theUppBorder defines upper border of search space.
* @param theSteps defines steps of regular grid, used for particle generation.
This parameter used to define stop condition (TerminalVelocity).
* @param theNbParticles defines number of particles.
* @param theNbIter defines maximum number of iterations.
*/
Standard_EXPORT math_PSO(math_MultipleVarFunction* theFunc,
const math_Vector& theLowBorder,
const math_Vector& theUppBorder,
const math_Vector& theSteps,
const Standard_Integer theNbParticles = 32,
const Standard_Integer theNbIter = 100);
//! Perform computations, particles array is constructed inside of this function.
Standard_EXPORT void Perform(const math_Vector& theSteps,
Standard_Real& theValue,
math_Vector& theOutPnt,
const Standard_Integer theNbIter = 100);
//! Perform computations with given particles array.
Standard_EXPORT void Perform(math_PSOParticlesPool& theParticles,
Standard_Integer theNbParticles,
Standard_Real& theValue,
math_Vector& theOutPnt,
const Standard_Integer theNbIter = 100);
private:
void performPSOWithGivenParticles(math_PSOParticlesPool& theParticles,
Standard_Integer theNbParticles,
Standard_Real& theValue,
math_Vector& theOutPnt,
const Standard_Integer theNbIter = 100);
math_MultipleVarFunction *myFunc;
math_Vector myLowBorder; // Lower border.
math_Vector myUppBorder; // Upper border.
math_Vector mySteps; // steps used in PSO algorithm.
Standard_Integer myN; // Dimension count.
Standard_Integer myNbParticles; // Particles number.
Standard_Integer myNbIter;
};
#endif
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