dignea  1.0.0
Diverse Instance Generator with Novelty Search and Evolutionary Algorithms
Combo Class Reference

Combo Heuristic for the Knapsack Problem. More...

#include <Combo.h>

Inheritance diagram for Combo:
Heuristic< BoolFloatSolution > AbstractEA< S >

Public Member Functions

void run () override
 Main method of the EA. Runs the algorithm but must be implemented in the subclasses.
 
string getName () const
 Returns the name of the algorithm, this is used in the to_json method. Must be implemented in the subclasses. More...
 
string getID () const
 Returns the identificator of the algorithm, this is used in the to_json method. Must be implemented in the subclasses. It should return the acronym of useful id for a particular configuration. More...
 
void setProblem (shared_ptr< KP > prob)
 
void setProblem (KP *prob)
 
Front< BoolFloatSolutiongetResults () const override
 Returns a Front object with all the solutions of the evolutionary process. This method must be implemented in the subclasses. More...
 
- Public Member Functions inherited from Heuristic< BoolFloatSolution >
virtual json to_json () const
 Returns the JSON representation of the Heuristic. More...
 
- Public Member Functions inherited from AbstractEA< S >
 AbstractEA ()
 Construct a new Abstract EA object with default parameter values. More...
 
 AbstractEA (const int &maxEvals, const int &popsize)
 AbstractEA constructor which initialises the parameters maxEvalautions and populationSize. More...
 
 AbstractEA (unique_ptr< PopulationEvaluator< S >>, const int &maxEvals, const int &popsize)
 AbstractEA constructor which initialises the parameters maxEvalautions, the populationSize and the evaluator approach. More...
 
int getPopulationSize () const
 Get the population size. More...
 
void setPopulationSize (int pSize)
 Setter to update the population size. More...
 
double getElapsedTime () const
 Get the elapsed time of the evolutionary process. More...
 
const vector< S > & getPopulation () const
 Gets a reference of the population. More...
 
int getMaxEvaluations () const
 Get the maximum number of evaluations to perform. More...
 
void setMaxEvaluations (int maxEval)
 Set a new maximum number of evaluations to perform. More...
 
const Problem< S > * getProblem () const
 Gets a pointer to the problem which is being solved. More...
 
virtual void setProblem (shared_ptr< Problem< S >> prob)
 Set the new problem to solve. Uses a shared_ptr pointer which updates the reference counter. Does no take the ownership. More...
 
virtual void setProblem (Problem< S > *prob)
 Set the new problem to solve. Uses a raw pointer and takes the ownership of the object. More...
 
PopulationEvaluator< S > * getEvaluator () const
 Gets a pointer to the population evaluator system. More...
 
void setEvaluator (unique_ptr< PopulationEvaluator< S >> eval)
 Updates the population evaluator system with the unique_ptr. The method takes the ownership of the object behind. More...
 
int getPerformedEvaluations () const
 Get the performed evaluations. More...
 
void setPerformedEvaluations (int pEvals)
 Set the Performed Evaluations. Useful for the updateProgress method. More...
 
void setPopulation (const vector< S > &pop)
 Set the Population. More...
 
virtual Evolution< S > getEvolution () const
 Get the Evolution data. More...
 
int getPrintingInterval () const
 Get the interval of checkpoints. More...
 

Additional Inherited Members

- Static Public Attributes inherited from AbstractEA< S >
static const int DEFAULT_POPULATION_SIZE = 100
 Default population size equal to 100 individuals. More...
 
static const int DEFAULT_EVALUATIONS_LIMIT = 100000
 Default evaluation limit equal to 100000 evaluations. More...
 
static const std::string NAME = "Algorithm"
 
static const std::string MAX_EVALUATIONS = "Max Evaluations"
 
static const std::string POP_SIZE = "Population Size"
 
static const std::string ELAPSED_TIME = "Elapsed Time"
 
static const std::string EVALUATOR = "Evaluator"
 
static const int EVOLUTION_SIZE = 10
 
- Protected Member Functions inherited from Heuristic< BoolFloatSolution >
virtual void initProgress ()
 Not implemented. Nothing really to do here.
 
virtual void updateProgress ()
 Not implemented. Nothing really to do here.
 
void finishProgress () override
 Finishes the progress of the Heuristic by computing the elapsed time. More...
 
bool isStoppingConditionReached () override
 Always returns false. TODO: Refactor to inherit from Algorithm. More...
 
virtual void createInitialPopulation ()
 Not implemented. Nothing really to do here.
 
virtual void evaluatePopulation (vector< BoolFloatSolution > &)
 Not implemented. Nothing really to do here.
 
virtual void updateEvolution (vector< BoolFloatSolution > &)
 Not implemented. Nothing really to do here.
 
virtual void updateEvolution (const int &checkpoint, vector< BoolFloatSolution > &)
 Not implemented. Nothing really to do here.
 
- Protected Member Functions inherited from AbstractEA< S >
virtual void evaluatePopulation (vector< S > &pop)=0
 Evaluates the entire population of solutions. This is a virtual method that must be implemented in the subclasses to adapt special cases.
 
virtual void updateEvolution (vector< S > &pop)
 
virtual void updateEvolution (const int &checkpoint, vector< S > &)
 
- Protected Attributes inherited from AbstractEA< S >
int maxEvaluations
 
int performedEvaluations
 
int populationSize
 
vector< S > population
 
shared_ptr< Problem< S > > problem
 
unique_ptr< PopulationEvaluator< S > > evaluator
 
Evolution< S > evolution
 
AvgEvolution< S > avgEvolution
 
std::chrono::system_clock::time_point startTime
 
std::chrono::system_clock::time_point endTime
 
double elapsedTime
 
int nextCheckpoint
 
int evolutionInterval
 

Detailed Description

Combo Heuristic for the Knapsack Problem.

Member Function Documentation

◆ getID()

string Combo::getID ( ) const
inlinevirtual

Returns the identificator of the algorithm, this is used in the to_json method. Must be implemented in the subclasses. It should return the acronym of useful id for a particular configuration.

Returns
string

Implements Heuristic< BoolFloatSolution >.

◆ getName()

string Combo::getName ( ) const
inlinevirtual

Returns the name of the algorithm, this is used in the to_json method. Must be implemented in the subclasses.

Returns
string

Implements Heuristic< BoolFloatSolution >.

◆ getResults()

Front< BoolFloatSolution > Combo::getResults ( ) const
overridevirtual

Returns a Front object with all the solutions of the evolutionary process. This method must be implemented in the subclasses.

Returns
Front

Implements Heuristic< BoolFloatSolution >.


The documentation for this class was generated from the following files: