METSlib
0.6
|
Tabu Search algorithm. More...
#include <tabu-search.hh>
Public Types | |
enum | { ASPIRATION_CRITERIA_MET = abstract_search<move_manager_type>::LAST, LAST } |
typedef tabu_search < move_manager_type > | search_type |
![]() | |
enum | { MOVE_MADE = 0, IMPROVEMENT_MADE, ITERATION_BEGIN, ITERATION_END, LAST } |
Public Member Functions | |
tabu_search (feasible_solution &starting_solution, solution_recorder &best_recorder, move_manager_type &move_manager_inst, tabu_list_chain &tabus, aspiration_criteria_chain &aspiration, termination_criteria_chain &termination) | |
Creates a tabu Search instance. More... | |
tabu_search (const search_type &) | |
search_type & | operator= (const search_type &) |
void | throw (no_moves_error) |
This method starts the tabu search process. More... | |
const tabu_list_chain & | get_tabu_list () const |
The tabu list used by this tabu search. | |
const aspiration_criteria_chain & | get_aspiration_criteria () const |
The aspiration criteria used by this tabu search. | |
const termination_criteria_chain & | get_termination_criteria () const |
The termination criteria used by this tabu search. | |
![]() | |
abstract_search (feasible_solution &working, solution_recorder &recorder, move_manager_type &moveman) | |
Set some common values needed for neighborhood based metaheuristics. More... | |
abstract_search (const abstract_search< move_manager_type > &) | |
purposely not implemented (see Effective C++) | |
abstract_search & | operator== (const abstract_search< move_manager_type > &) |
purposely not implemented (see Effective C++) | |
virtual | ~abstract_search () |
Virtual destructor. | |
const solution_recorder & | recorder () const |
The solution recorder instance. | |
const feasible_solution & | working () const |
The current working solution. | |
feasible_solution & | working () |
const move & | current_move () const |
The last move made. | |
move & | current_move () |
The last move made. | |
const move_manager_type & | move_manager () const |
The move manager used by this search. | |
move_manager_type & | move_manager () |
The move manager used by this search. | |
int | step () const |
The current step of the algorithm (to be used by the observers). More... | |
![]() | |
virtual void | attach (observer< abstract_search< move_manager_type > > &o) |
Attach a new observer to this subject. More... | |
virtual void | detach (observer< abstract_search< move_manager_type > > &o) |
Detach a new observer to this subject. More... | |
virtual void | notify () |
Notify all attached observers. More... | |
Protected Attributes | |
tabu_list_chain & | tabu_list_m |
aspiration_criteria_chain & | aspiration_criteria_m |
termination_criteria_chain & | termination_criteria_m |
![]() | |
solution_recorder & | solution_recorder_m |
feasible_solution & | working_solution_m |
move_manager_type & | moves_m |
move_manager_type::iterator | current_move_m |
int | step_m |
![]() | |
std::set< observer < abstract_search < move_manager_type > > * > | observers_m |
Tabu Search algorithm.
This implements decorator pattern. You can build many different solvers decorating tabu_search class in different ways.
mets::tabu_search< move_manager_type >::tabu_search | ( | feasible_solution & | starting_solution, |
solution_recorder & | best_recorder, | ||
move_manager_type & | move_manager_inst, | ||
tabu_list_chain & | tabus, | ||
aspiration_criteria_chain & | aspiration, | ||
termination_criteria_chain & | termination | ||
) |
Creates a tabu Search instance.
starting_solution | The working solution (this will be modified during search). |
best_recorder | A solution recorder used to record the best solution found during the search. |
move_manager_inst | A problem specific implementation of the move_manager_type used to generate the neighborhood. |
tabus | The tabu list used to decorate this search instance. |
aspiration | The aspiration criteria to use in this tabu search. |
termination | The termination criteria used to terminate the search process, this is an extension to the standard Simulated Annealing: you can give a termination criteria that termiantes when temperature reaches 0. |
|
virtual |
This method starts the tabu search process.
Remember that this is a minimization process.
An exception mets::no_moves_error is risen when no move is possible.
Implements mets::abstract_search< move_manager_type >.
Return to METSlib home page