main.cpp

#include "ECF.h"
 
// Za svaki primjer je potrebno:
// a) definirati odgovarajuci EvaluateOp objekt koji se primjenjuje za evaluaciju jedinke
// b) definirati genotip (po zelji i druge parametre) u konf fajlu
//
// Svaki primjer ima posebnu funkciju main() - otkomentirati
 
 
 
//
// primjer dodavanja novog algoritma
//
class MyAlg : public Algorithm
{
protected:
 
    // declare all available selection operators (not all get used)
    SelFitnessProportionalOpP selFitOp_;
    SelRandomOpP selRandomOp_;
    SelBestOpP selBestOp_;
    SelWorstOpP selWorstOp_;
    // what individual to replace (worst or random)
    bool replaceWorst_;
 
public:
 
    // mandatory: define name, construct selection operators
    MyAlg()
    {
        // the algorithm name will be used in config file (see below)
        name_ = "MyAlg";
        selFitOp_ = (SelFitnessProportionalOpP) (new SelFitnessProportionalOp);
        selRandomOp_ = (SelRandomOpP) (new SelRandomOp);
        selBestOp_ = (SelBestOpP) (new SelBestOp);
        selWorstOp_ = (SelWorstOpP) (new SelWorstOp);
    }
 
 
    // optional: register any parameters
    void registerParameters(StateP state)
    {
        // HOW TO: define a parameter
        // string parameter, options: random, worst
        registerParameter(state, "replace", (voidP) (new std::string("random")), ECF::STRING);
    }
 
 
    // optional: initialize components, read parameters
    bool initialize(StateP state)
    {
        // selection operators must be initialized if used!
        selFitOp_->initialize(state);
        // optional: set ratio between the best and the worst individual's selection probability
        selFitOp_->setSelPressure(10);
        // if the ratio is < 1, the selection favours worse over better individuals
        //selFitOp_->setSelPressure(0.1);
        selRandomOp_->initialize(state);
        selBestOp_->initialize(state);
        selWorstOp_->initialize(state);
 
        // HOW TO: read a parameter value
        // get parameter, decide what to replace
        voidP par = getParameterValue(state, "replace");
        std::string replace = *((std::string*) par.get());
        replaceWorst_ = false;
        if(replace == "worst")
                replaceWorst_ = true;
 
        // HOW TO: check if genotype is of a specific kind
        // suppose we only accept FloatingPoint
        FloatingPointP flp (new FloatingPoint::FloatingPoint);
        if(state->getGenotypes()[0]->getName() != flp->getName()) {
            ECF_LOG_ERROR(state, "Error: this algorithm accepts only a single FloatingPoint genotype!");
            throw ("");
        }
 
        // HOW TO: read the dimension and domain boundaries
        voidP sptr = state->getGenotypes()[0]->getParameterValue(state, "dimension");
        uint numDimension = *((uint*) sptr.get());
        voidP lBound = state->getGenotypes()[0]->getParameterValue(state, "lbound");
        double lbound = *((double*) lBound.get());
        voidP uBound = state->getGenotypes()[0]->getParameterValue(state, "ubound");
        double ubound = *((double*) uBound.get());
 
        // HOW TO: add another genotype in all individuals (if algorithm requires)
        // new FloatingPoint genotype with same parameters
        FloatingPointP fp (static_cast<FloatingPoint::FloatingPoint*> (state->getGenotypes()[0]->copy()));
        //state->setGenotype(fp);
        fp->setParameterValue(state, "dimension", (voidP) new uint(numDimension));
        fp->setParameterValue(state, "lbound", (voidP) new double(lbound));
        fp->setParameterValue(state, "ubound", (voidP) new double(ubound));
 
        // HOW TO: read population (local deme) size
        uint popSize = state->getPopulation()->getLocalDeme()->getSize();
 
        return true;
    }
 
 
    // mandatory: perform single 'generation' (however the algorithm defines it)
    bool advanceGeneration(StateP state, DemeP deme)
    {
        // HOW TO: select parents
        IndividualP first = selFitOp_->select(*deme);
        IndividualP second = selBestOp_->select(*deme);
 
        // select child (random or worst)
        IndividualP child;
        if(replaceWorst_)
                child = selWorstOp_->select(*deme);
        else
                child = selRandomOp_->select(*deme);
 
        // HOW TO: cross two individuals
        mate(first, second, child);
 
        // HOW TO: mutate an individual
        // mutation probability defined in Registry!
        mutate(child);              
        // to explicitly mutate an individual:
        //mutation_->mutate(child);
 
        // HOW TO: evaluate an individual
        evaluate(child);
 
        // HOW TO: create a trial individual (e.g. a copy of an existing individual)
        IndividualP trial = (IndividualP) deme->at(0)->copy();
 
        // HOW TO: access individual data
        // get FloatingPoint genotype from individual
        FloatingPointP fp = std::static_pointer_cast<FloatingPoint::FloatingPoint> (trial->getGenotype(0));
        // or use ordinary pointers:
        //FloatingPoint::FloatingPoint* fp = static_cast<FloatingPoint::FloatingPoint*> (trial->getGenotype().get());
 
        // HOW TO: change individual data
        fp->realValue[0] = 3.14;
 
        // HOW TO: replace an individual in deme
        // evaluate and compare with another individual
        evaluate(trial);
        if(trial->fitness->isBetterThan(child->fitness))
            // replace first with second:
            replaceWith(child, trial);
 
        // some other helper functions (see existing algorithms):
        // copy, replaceWith, removeFrom, isMember
 
        return true;
    }
};
typedef std::shared_ptr<MyAlg> MyAlgP;
 
 
 
 
 
 
 
 
// 1. primjer: GA OneMax problem
 
#include "examples/GAonemax/OneMaxEvalOp.h"
int main(int argc, char **argv)
{
    argc = 2;   // hard coded za lakse isprobavanje :)
    //argv[1] = "./examples/GAOneMax/parametri.txt";
 
    StateP state (new State);
 
    //state->setEvalOp(static_cast<EvaluateOpP> (new OneMaxEvalOp));
    state->setEvalOp(new OneMaxEvalOp);
 
    state->initialize(argc, argv);
    state->run();
 
    return 0;
}
 
 
 
// 2. primjer: GA minimizacija funkcije
/*
#include "examples/GAFunctionMin/FunctionMinEvalOp.h"
int main(int argc, char **argv)
{
    argc = 2;
    argv[1] = "./examples/GAFunctionMin/parametri.txt";
 
    StateP state (new State);
    state->setEvalOp(new FunctionMinEvalOp);
 
    state->initialize(argc, argv);
    state->run();
 
    
    try {
        pt::ptree tree;
        pt::read_xml("./examples/GAFunctionMin/parametri.txt", tree);
        pt::ptree ecf = tree.get_child("ECF");
        pt::ptree genotype = ecf.get_child("Genotype");
 
    //  BOOST_FOREACH(pt::ptree::value_type &v, genotype.get_child("")) {
        for(pt::ptree::iterator it = genotype.begin(); it != genotype.end(); it++) {
            pt::ptree::value_type &v = *it;
            if(v.first == "FloatingPoint")
                ;
        }
    }
    catch(const pt::ptree_error& er){
        std::cout << er.what() << std::endl;
    }
 
 
 
 
 
    return 0;
 
//
//  ispis populacije u txt fajl, za potrebe landscape analysis
//
    ofstream fajl("popis.txt");
    for(uint i = 0; i < state->getPopulation()->getLocalDeme()->getSize(); i++) {
        IndividualP ind = state->getPopulation()->getLocalDeme()->at(i);
        fajl << ind->fitness->getValue() << "\t";
        FloatingPointP fp = boost::static_pointer_cast<FloatingPoint::FloatingPoint> (ind->getGenotype());
        for(uint dim = 0; dim < fp->realValue.size(); dim++)
            fajl << fp->realValue[dim] << "\t";
        fp = boost::static_pointer_cast<FloatingPoint::FloatingPoint> (ind->getGenotype(2));
        fajl << fp->realValue[0];
        fajl << "\n";
    }
 
    return 0;
}
*/
 
 
// 2a. primjer: MO NSGA minimizacija funkcije
/*
#include "examples/MOFunctionMin/MOFunctionMinEvalOp.h"
int main(int argc, char **argv)
{
    argc = 2;
    argv[1] = "./examples/MOFunctionMin/parameters.txt";
 
    StateP state (new State);
    state->setEvalOp(new MOEvalOp);
 
    state->initialize(argc, argv);
    state->run();
 
    // ispis populacije na kraju
    std::ofstream myfile;
    myfile.open ("paretoFront.txt");
    DemeP deme = state->getPopulation()->getLocalDeme();
    for (uint i = 0; i<deme->size(); i++) {
        MOFitnessP fitness = boost::static_pointer_cast<MOFitness> (deme->at(i)->fitness);
        for (uint f = 0; f < fitness->size(); f++)
            myfile << fitness->at(f)->getValue() << "\t";
        myfile << "\n";
    }
    myfile.close();
 
    return 0;
}
*/
 
 
 
namespace Tree {
 
// primjer tipa podataka
struct my_type
{
    double v;
    bool b;
};
 
// terminal za doticni tip
class MyTerminal : public Primitives::Primitive
{
public:
    my_type value_;
 
    MyTerminal()
    {
        nArguments_ = 0;
    }
    void execute(void* result, Tree& tree)
    {
        my_type& res = *(my_type*)result;
        res = value_;
    }
    void setValue(void* value)
    {
        value_ = *(my_type*)value;
    }
    ~MyTerminal()
    {   }
};
 
// primjer funkcije za korisnicki tip podataka
class MyFunc : public Primitives::Primitive
{
public:
    MyFunc()
    {
        nArguments_ = 2;
        name_ = "func";
    }
    void execute(void* result, Tree& tree)
    {
        my_type first, second;
        my_type& func = *(my_type*)result;
 
        getNextArgument(&first, tree);
        getNextArgument(&second, tree);
        
        func.b = first.b && second.b;
        func.v = first.v + second.v;
    }
    ~MyFunc()
    {   }
};
 
}
 
 
 
// 3. primjer: GP simbolicka regresija
/*
#include "examples/GPSymbReg/SymbRegEvalOp.h"
#include "examples/GPSymbReg/zbr.h"
int main(int argc, char **argv)
{
//  argc = 2;
//  argv[1] = "./examples/GPSymbReg/parametri.txt";
 
    StateP state = static_cast<StateP> (new State);
 
    state->setEvalOp(static_cast<EvaluateOpP> (new SymbRegEvalOp));
 
    // primjer: dodavanje korisnickog operatora
//  MyOpP myOp = (MyOpP) (new MyOp);
//  state->addOperator(myOp);
 
    // primjer: dodavanje korisnickog algoritma
//  MyAlgP myAlg = (MyAlgP) (new MyAlg);
//  state->addAlgorithm(myAlg);
 
    // primjer: dodavanje korisnickog genotipa
//  MyGenotypeP myGenotype = (MyGenotypeP) (new MyGenotype);
//  state->addGenotype(myGenotype);
 
    // primjer: dodavanje korisnicke funkcije za stablo
    TreeP tree = (TreeP) new Tree::Tree;
    Tree::PrimitiveP zbr = (Tree::PrimitiveP) new Tree::Ad;
    tree->addFunction(zbr);
 
Tree::PrimitiveP myFunc = (Tree::PrimitiveP) new Tree::MyFunc;
tree->addFunction(myFunc);
 
Tree::PrimitiveP myTerm = (Tree::PrimitiveP) new Tree::MyTerminal;
myTerm->setName("term");
tree->addTerminal(myTerm);
 
 
    state->addGenotype(tree);
 
    if (!state->initialize(argc, argv))
        return 1;
    state->run();
 
    //std::vector<IndividualP> vec = state->getPopulation()->hof_->getBest();
    //IndividualP ind = vec[0];
    //state->getAlgorithm()->evaluate(ind);
    //XMLNode out;
    //ind->write(out);
    //std::cout << out.createXMLString() << std::endl;
 
    std::vector<IndividualP> vec = state->getPopulation()->getHof()->getBest();
    IndividualP ind = vec[0];
    XMLNode xml2 = XMLNode::parseString("<Individual size=""1"" gen=""77""><FitnessMin value=""4.26326e-14""/><Tree size=""36"">+ + * * X * X X - * X X + X X + sin X * X * X X / - * X X X / / X X + X X </Tree></Individual>", "Individual");
    ind->read(xml2);
    state->getAlgorithm()->evaluate(ind);
    std::cout << ind->toString();
 
    return 0;
}
*/
 
 
//4. primjer: GA problem trgovackog putnika, 29 gradova
/*
#include "examples/GATSP/TSPEvalOp.h"
int main(int argc, char **argv)
{
//  argc = 2;
//  argv[1] = "./examples/GATSP/parameters.txt";
 
    StateP state = static_cast<StateP> (new State);
 
    state->setEvalOp(static_cast<EvaluateOpP> (new TSPEvalOp));
 
    state->initialize(argc, argv);
    //state->getFitnessObject();
 
    state->run();
 
    return 0;
}
*/
 
 
 
//5. primjer: GA problem aproksimacije funkcije
/*
#include "examples/GAApprox/ApproxEvalOp.h"
int main(int argc, char **argv)
{
//  argc = 2;
//  argv[1] = "./examples/GAApprox/parameters.txt";
 
    StateP state(new State);
 
    state->setEvalOp(EvaluateOpP (new AproxEvalOp));
 
    state->initialize(argc, argv);
    state->run();
 
    return 0;
}
*/
 
 
 
//6. primjer: GP evolucija pravila rasporedjivanja
/*
#include "examples/GPScheduling/SchedulingEvalOp.h"
int main(int argc, char **argv)
{
    argc = 2;
    //argv[1] = "./examples/GPScheduling/parameters.txt";
    argv[1] = "./parameters.txt";
 
    StateP state = static_cast<StateP> (new State);
 
    state->setEvalOp(static_cast<EvaluateOpP> (new SchedulingEvalOp));
 
    state->initialize(argc, argv);
    state->run();
 
//  XMLNode xInd = XMLNode::parseFile("./ind.txt", "Individual");
//  IndividualP ind = (IndividualP) new Individual(state);
//  ind->read(xInd);
//  state->getAlgorithm()->evaluate(ind);
//  std::cout << ind->toString();
 
    return 0;
}
*/
 
 
//7. primjer: XCS
/*
#include "examples/XCSmux/MuxEvalOp.h"
#include "examples/XCSmaze/SingleObjMazeEnv.h"
#include "examples/XCSmaze/SeqObjMazeEnv.h"
#include "examples/XCSmaze/TwoObjMazeEnv.h"
#include "examples/XCSmaze/ThreeObjMazeEnv.h"
 
int main(int argc, char **argv)
{
    argc = 2;
    StateP state = static_cast<StateP> (new State);
    MazeEnvP maze;
 
    //Multistep:
 
    //  - sigle-objective maze:
        //argv[1] = "examples/XCSmaze/single-obj params.txt";
        //maze = static_cast<MazeEnvP> (new SingleObjMazeEnv(state));
        //maze->setMazeFile("examples/XCSmaze/Environments/single-objective/Maze1.txt");
 
    //  - multi-objective maze:
        //argv[1] = "examples/XCSmaze/seq-obj params.txt";
        //maze = static_cast<MazeEnvP> (new SeqObjMazeEnv(state));
        //maze->setMazeFile("examples/XCSmaze/Environments/multi-objective/Maze1k.txt");
    
        argv[1] = "examples/XCSmaze/three-obj params.txt";
        maze = static_cast<MazeEnvP> (new ThreeObjMazeEnv(state,0));
        maze->setMazeFile("examples/XCSmaze/Environments/multi-objective/Maze1em.txt");
    
    maze->setResultsFile("examples/XCSmaze/Maze1k results.txt");
    state->setEvalOp(maze);
    
    //Singlestep:
 
    //  - 6-multiplexor problem:
    //  argv[1] = "./examples/XCSmux/parametri.txt";
    //  state->setEvalOp(static_cast<EvaluateOpP> (new MuxEvalOp(state)));
 
    state->initialize(argc, argv);
 
    state->run();
 
    int a;
    cin >> a;
    return 0;
}
*/
 
 
 
//8. primjer: Kartezijski GP - feedforward
/*
#include "examples/CGPFeedForward/FeedForwardEvalOp.h"
#include "examples/CGPFeedForward/CGPEvalOp.h"
#include "cartesian/Cartesian.h"
using namespace cart;
 
int main(int argc, char **argv)
{
    argc = 2;
    argv[1] = "./examples/CGPFeedForward/parameters.txt";
 
    StateP state (new State);
 
    CartesianP cart (new Cartesian);
 
    state->addGenotype(cart);
 
    state->setEvalOp(new FunctionMinEvalOp);
 
 
    // izabrati koji tip
    //state->setEvalOp(new cart::FeedForwardEvalOpInt);
    //state->setEvalOp(static_cast<EvaluateOpP> (new cart::FeedForwardEvalOpDouble));
    //state->setEvalOp(static_cast<EvaluateOpP> (new cart::CircuitEvalOpUint));
 
    state->initialize(argc, argv);
    state->run();
 
    return 0;
}
*/