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refine insertion calc
This commit is contained in:
oblonski
parent
adeceb2640
commit
9717926b8e
5 changed files with 375 additions and 42 deletions
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@ -95,6 +95,7 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
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double tp_costs_newAct_nextAct = routingCosts.getTransportCost(newAct.getLocation(), nextAct.getLocation(), newAct_endTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
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double tp_time_newAct_nextAct = routingCosts.getTransportTime(newAct.getLocation(), nextAct.getLocation(), newAct_endTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
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double nextAct_arrTime = newAct_endTime + tp_time_newAct_nextAct;
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double endTime_nextAct_new = CalculationUtils.getActivityEndTime(nextAct_arrTime, nextAct);
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double act_costs_nextAct = activityCosts.getActivityCost(nextAct, nextAct_arrTime, iFacts.getNewDriver(), iFacts.getNewVehicle());
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if(hasVariableDeparture(iFacts.getNewVehicle())){
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@ -110,7 +111,8 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
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}
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else{
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double tp_costs_prevAct_nextAct = routingCosts.getTransportCost(prevAct.getLocation(), nextAct.getLocation(), prevAct.getEndTime(), iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
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double arrTime_nextAct = prevAct.getEndTime() + routingCosts.getTransportTime(prevAct.getLocation(), nextAct.getLocation(), prevAct.getEndTime(), iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
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double arrTime_nextAct = depTimeAtPrevAct + routingCosts.getTransportTime(prevAct.getLocation(), nextAct.getLocation(), prevAct.getEndTime(), iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
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double endTime_nextAct_old = CalculationUtils.getActivityEndTime(arrTime_nextAct,nextAct);
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double actCost_nextAct = activityCosts.getActivityCost(nextAct, arrTime_nextAct, iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
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if(isStart(prevAct) && hasVariableDeparture(iFacts.getRoute().getVehicle())) {
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actCost_nextAct = 0;
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@ -118,7 +120,12 @@ class LocalActivityInsertionCostsCalculator implements ActivityInsertionCostsCal
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else if(hasVariableDeparture(iFacts.getRoute().getVehicle())){
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actCost_nextAct = activityCosts.getActivityCost(nextAct, arrTime_nextAct + slack_time_prev, iFacts.getRoute().getDriver(), iFacts.getRoute().getVehicle());
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}
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oldCosts = tp_costs_prevAct_nextAct + solutionCompletenessRatio * activityCostsWeight * actCost_nextAct;
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double endTimeDelay_nextAct = Math.max(0,endTime_nextAct_new - endTime_nextAct_old);
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Double futureWaiting = stateManager.getActivityState(nextAct,iFacts.getRoute().getVehicle(),InternalStates.FUTURE_WAITING,Double.class);
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if(futureWaiting == null) futureWaiting = 0.;
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double waitingTime_savings_timeUnit = Math.min(futureWaiting,endTimeDelay_nextAct);
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double waitingTime_savings = waitingTime_savings_timeUnit * iFacts.getRoute().getVehicle().getType().getVehicleCostParams().perWaitingTimeUnit;
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oldCosts = tp_costs_prevAct_nextAct + solutionCompletenessRatio * activityCostsWeight * ( actCost_nextAct + waitingTime_savings);
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}
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return totalCosts - oldCosts;
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}
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@ -46,4 +46,6 @@ public class InternalStates {
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public static final StateId WAITING = new StateFactory.StateIdImpl("waiting",11);
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public static final StateId TIME_SLACK = new StateFactory.StateIdImpl("time_slack",12);
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public static final StateId FUTURE_WAITING = new StateFactory.StateIdImpl("future_waiting",13);
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}
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@ -0,0 +1,60 @@
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/*******************************************************************************
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* Copyright (C) 2014 Stefan Schroeder
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3.0 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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******************************************************************************/
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package jsprit.core.algorithm.state;
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import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
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import jsprit.core.problem.solution.route.VehicleRoute;
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import jsprit.core.problem.solution.route.activity.ReverseActivityVisitor;
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import jsprit.core.problem.solution.route.activity.TourActivity;
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/**
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* Updates and memorizes latest operation start times at activities.
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*
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* @author schroeder
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*
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*/
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public class UpdateFutureWaitingTimes implements ReverseActivityVisitor, StateUpdater{
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private StateManager states;
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private VehicleRoute route;
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private VehicleRoutingTransportCosts transportCosts;
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private double futureWaiting;
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public UpdateFutureWaitingTimes(StateManager states, VehicleRoutingTransportCosts tpCosts) {
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super();
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this.states = states;
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this.transportCosts = tpCosts;
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}
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@Override
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public void begin(VehicleRoute route) {
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this.route = route;
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this.futureWaiting = 0.;
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}
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@Override
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public void visit(TourActivity activity) {
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states.putInternalTypedActivityState(activity,route.getVehicle(),InternalStates.FUTURE_WAITING,futureWaiting);
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futureWaiting += Math.max(activity.getTheoreticalEarliestOperationStartTime() - activity.getArrTime(),0);
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}
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@Override
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public void finish() {}
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}
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@ -16,12 +16,13 @@
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******************************************************************************/
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package jsprit.core.algorithm.recreate;
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import jsprit.core.algorithm.state.StateManager;
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import jsprit.core.algorithm.state.*;
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import jsprit.core.problem.Location;
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import jsprit.core.problem.VehicleRoutingProblem;
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import jsprit.core.problem.cost.VehicleRoutingActivityCosts;
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import jsprit.core.problem.cost.VehicleRoutingTransportCosts;
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import jsprit.core.problem.cost.WaitingTimeCosts;
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import jsprit.core.problem.job.Job;
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import jsprit.core.problem.job.Service;
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import jsprit.core.problem.misc.JobInsertionContext;
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import jsprit.core.problem.solution.route.VehicleRoute;
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@ -33,6 +34,9 @@ import jsprit.core.util.CostFactory;
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import org.junit.Before;
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import org.junit.Test;
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import java.util.ArrayList;
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import java.util.Arrays;
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import static org.junit.Assert.assertEquals;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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@ -156,38 +160,17 @@ public class TestLocalActivityInsertionCostsCalculator {
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assertEquals(40.,c,0.01);
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}
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// @Test
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// public void test_(){
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// VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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// VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0, 0)).build();
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// Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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// Service newS = Service.Builder.newInstance("new").setLocation(Location.newInstance(40, 0)).build();
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// Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(140,150)).build();
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// ServiceActivity prevAct = ServiceActivity.newInstance(prevS);
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// ServiceActivity newAct = ServiceActivity.newInstance(newS);
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// ServiceActivity nextAct = ServiceActivity.newInstance(nextS);
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// VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(prevS).addService(nextS).build();
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// JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
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// LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),new StateManager(mock(VehicleRoutingProblem.class)) );
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// calc.setSolutionCompletenessRatio(1.);
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//// calc.setVariableStartTimeFactor(1.);
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// double c = calc.getCosts(context,prevAct,nextAct,newAct,0);
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// assertEquals(0.,c,0.01);
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// }
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@Test
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public void test2(){
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public void whenAddingNewBetweenStartAndAct_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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//
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// Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setLocation(Location.newInstance(10, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30, 0))
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.setTimeWindow(TimeWindow.newInstance(40, 50)).build();
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Start prevAct = new Start(Location.newInstance(0,0),0,100);
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// ServiceActivity prevAct = ServiceActivity.newInstance(prevS);
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ServiceActivity newAct = ServiceActivity.newInstance(newS);
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ServiceActivity nextAct = ServiceActivity.newInstance(nextS);
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(nextS).build();
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@ -199,10 +182,9 @@ public class TestLocalActivityInsertionCostsCalculator {
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}
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@Test
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public void test3(){
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public void whenAddingNewBetweenStartAndAct2_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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// VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setLocation(Location.newInstance(10, 0)).build();
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@ -221,7 +203,7 @@ public class TestLocalActivityInsertionCostsCalculator {
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}
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@Test
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public void test4(){
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public void whenAddingNewInEmptyRoute_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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@ -242,5 +224,286 @@ public class TestLocalActivityInsertionCostsCalculator {
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double c = calc.getCosts(context,prevAct,nextAct,newAct,0);
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assertEquals(110.,c,0.01);
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}
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@Test
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public void whenAddingNewBetweenTwoActs_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10, 0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setLocation(Location.newInstance(20, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,50)).build();
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ServiceActivity prevAct = ServiceActivity.newInstance(prevS);
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ServiceActivity newAct = ServiceActivity.newInstance(newS);
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ServiceActivity nextAct = ServiceActivity.newInstance(nextS);
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(prevS).addService(nextS).build();
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JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
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LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),null );
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calc.setSolutionCompletenessRatio(1.);
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double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
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assertEquals(-10.,c,0.01);
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}
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@Test
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public void whenAddingNewWithTWBetweenTwoActs_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(100, 120)).setLocation(Location.newInstance(20, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,500)).build();
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ServiceActivity prevAct = ServiceActivity.newInstance(prevS);
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ServiceActivity newAct = ServiceActivity.newInstance(newS);
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ServiceActivity nextAct = ServiceActivity.newInstance(nextS);
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(prevS).addService(nextS).build();
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JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
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LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),null );
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calc.setSolutionCompletenessRatio(0.5);
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double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
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assertEquals(35.,c,0.01);
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}
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@Test
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public void whenAddingNewWithTWBetweenTwoActs2_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(100,120)).setLocation(Location.newInstance(20, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,500)).build();
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Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(400,500)).build();
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ServiceActivity prevAct = ServiceActivity.newInstance(prevS);
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ServiceActivity newAct = ServiceActivity.newInstance(newS);
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ServiceActivity nextAct = ServiceActivity.newInstance(nextS);
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).addService(prevS).addService(nextS).addService(afterNextS).build();
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JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
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LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),null );
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calc.setSolutionCompletenessRatio(1.);
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double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
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assertEquals(-90.,c,0.01);
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//360
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//270
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}
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@Test
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public void whenAddingNewWithTWBetweenTwoActs3_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(100,120)).setLocation(Location.newInstance(20, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,500)).build();
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Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(80,500)).build();
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Service afterAfterNextS = Service.Builder.newInstance("afterAfterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(100,500)).build();
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VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().addVehicle(v).addJob(prevS).addJob(newS).addJob(nextS)
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.addJob(afterNextS).addJob(afterAfterNextS).build();
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TourActivity prevAct = vrp.getActivities(prevS).get(0);
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TourActivity newAct = vrp.getActivities(newS).get(0);
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TourActivity nextAct = vrp.getActivities(nextS).get(0);
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VehicleRoute route = VehicleRoute.Builder.newInstance(v).setJobActivityFactory(vrp.getJobActivityFactory()).addService(prevS).addService(nextS).addService(afterNextS).addService(afterAfterNextS).build();
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StateManager stateManager = getStateManager(vrp,route);
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JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
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LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),stateManager);
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calc.setSolutionCompletenessRatio(1.);
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double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
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assertEquals(20.,c,0.01);
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//start-delay = new - old = 120 - 40 = 80 > future waiting time savings = 30 + 20 + 10
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//ref: 10 + 50 + 20 = 80
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//new: 80 - 10 - 30 - 20 = 20
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/*
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w(new) + w(next) - w_old(next) - min{start_delay(next),future_waiting}
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*/
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}
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@Test
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public void whenAddingNewWithTWBetweenTwoActs4_itShouldCalcInsertionCostsCorrectly(){
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VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
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VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(false).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
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Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
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Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(100,120)).setLocation(Location.newInstance(20, 0)).build();
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Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,500)).build();
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|
||||
Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(80,500)).build();
|
||||
Service afterAfterNextS = Service.Builder.newInstance("afterAfterNext").setLocation(Location.newInstance(50,0)).setTimeWindow(TimeWindow.newInstance(100,500)).build();
|
||||
|
||||
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().addVehicle(v).addJob(prevS).addJob(newS).addJob(nextS)
|
||||
.addJob(afterNextS).addJob(afterAfterNextS).build();
|
||||
|
||||
TourActivity prevAct = vrp.getActivities(prevS).get(0);
|
||||
TourActivity newAct = vrp.getActivities(newS).get(0);
|
||||
TourActivity nextAct = vrp.getActivities(nextS).get(0);
|
||||
|
||||
VehicleRoute route = VehicleRoute.Builder.newInstance(v).setJobActivityFactory(vrp.getJobActivityFactory()).addService(prevS).addService(nextS).addService(afterNextS).addService(afterAfterNextS).build();
|
||||
JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
|
||||
|
||||
StateManager stateManager = getStateManager(vrp, route);
|
||||
|
||||
LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),stateManager);
|
||||
calc.setSolutionCompletenessRatio(1.);
|
||||
double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
|
||||
assertEquals(30.,c,0.01);
|
||||
//ref: 10 + 30 + 10 = 50
|
||||
//new: 50 - 50 = 0
|
||||
|
||||
/*
|
||||
activity start time delay at next act = start-time-old - start-time-new is always bigger than subsequent waiting time savings
|
||||
*/
|
||||
/*
|
||||
old = 10 + 30 + 10 = 50
|
||||
new = 80 + 0 - 10 - min{80,40} = 30
|
||||
*/
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenAddingNewWithTWBetweenTwoActs4WithVarStart_itShouldCalcInsertionCostsCorrectly(){
|
||||
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
|
||||
|
||||
VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
|
||||
Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
|
||||
Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(100,120)).setLocation(Location.newInstance(20, 0)).build();
|
||||
Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,500)).build();
|
||||
|
||||
Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(80,500)).build();
|
||||
Service afterAfterNextS = Service.Builder.newInstance("afterAfterNext").setLocation(Location.newInstance(50,0)).setTimeWindow(TimeWindow.newInstance(100,500)).build();
|
||||
|
||||
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().addVehicle(v).addJob(prevS).addJob(newS).addJob(nextS)
|
||||
.addJob(afterNextS).addJob(afterAfterNextS).build();
|
||||
|
||||
TourActivity prevAct = vrp.getActivities(prevS).get(0);
|
||||
TourActivity newAct = vrp.getActivities(newS).get(0);
|
||||
TourActivity nextAct = vrp.getActivities(nextS).get(0);
|
||||
|
||||
VehicleRoute route = VehicleRoute.Builder.newInstance(v).setJobActivityFactory(vrp.getJobActivityFactory()).addService(prevS).addService(nextS).addService(afterNextS).addService(afterAfterNextS).build();
|
||||
JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
|
||||
|
||||
StateManager stateManager = getStateManager(vrp, route);
|
||||
|
||||
LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),stateManager);
|
||||
calc.setSolutionCompletenessRatio(1.);
|
||||
double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
|
||||
assertEquals(0.,c,0.01);
|
||||
/*
|
||||
activity start time delay at next act = start-time-old - start-time-new is always bigger than subsequent waiting time savings
|
||||
*/
|
||||
/*
|
||||
old = 10 + 30 + 10 = 50
|
||||
new = 80 + 0 - 10 - min{80,40} = 30
|
||||
*/
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenAddingNewWithTWBetweenTwoActs3WithVarStart_itShouldCalcInsertionCostsCorrectly(){
|
||||
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
|
||||
|
||||
VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
|
||||
Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
|
||||
Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(50,70)).setLocation(Location.newInstance(20, 0)).build();
|
||||
Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,70)).build();
|
||||
|
||||
Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(50,100)).build();
|
||||
Service afterAfterNextS = Service.Builder.newInstance("afterAfterNext").setLocation(Location.newInstance(50,0)).setTimeWindow(TimeWindow.newInstance(100,500)).build();
|
||||
|
||||
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().addVehicle(v).addJob(prevS).addJob(newS).addJob(nextS)
|
||||
.addJob(afterNextS).addJob(afterAfterNextS).build();
|
||||
|
||||
TourActivity prevAct = vrp.getActivities(prevS).get(0);
|
||||
TourActivity newAct = vrp.getActivities(newS).get(0);
|
||||
TourActivity nextAct = vrp.getActivities(nextS).get(0);
|
||||
|
||||
VehicleRoute route = VehicleRoute.Builder.newInstance(v).setJobActivityFactory(vrp.getJobActivityFactory()).addService(prevS).addService(nextS).addService(afterNextS).addService(afterAfterNextS).build();
|
||||
JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
|
||||
|
||||
StateManager stateManager = getStateManager(vrp, route);
|
||||
|
||||
LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),stateManager);
|
||||
calc.setSolutionCompletenessRatio(1.);
|
||||
double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
|
||||
assertEquals(-10.,c,0.01);
|
||||
/*
|
||||
activity start time delay at next act = start-time-old - start-time-new is always bigger than subsequent waiting time savings
|
||||
*/
|
||||
/*
|
||||
old = s:40,act1:50,act2:60,act3:70,act4:80 --> w=20
|
||||
new = s:30,act1:40,act2:50,act3:70,act4:80,act5:90 --> w=10 => -10
|
||||
*/
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenAddingNewWithTWBetweenTwoActs2WithVarStart_itShouldCalcInsertionCostsCorrectly(){
|
||||
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("t").setCostPerWaitingTime(1.).build();
|
||||
|
||||
VehicleImpl v = VehicleImpl.Builder.newInstance("v").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
// VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setHasVariableDepartureTime(true).setType(type).setStartLocation(Location.newInstance(0,0)).build();
|
||||
|
||||
Service prevS = Service.Builder.newInstance("prev").setLocation(Location.newInstance(10,0)).build();
|
||||
Service newS = Service.Builder.newInstance("new").setServiceTime(10).setTimeWindow(TimeWindow.newInstance(10,20)).setLocation(Location.newInstance(20, 0)).build();
|
||||
Service nextS = Service.Builder.newInstance("next").setLocation(Location.newInstance(30,0)).setTimeWindow(TimeWindow.newInstance(40,70)).build();
|
||||
|
||||
Service afterNextS = Service.Builder.newInstance("afterNext").setLocation(Location.newInstance(40,0)).setTimeWindow(TimeWindow.newInstance(50,100)).build();
|
||||
Service afterAfterNextS = Service.Builder.newInstance("afterAfterNext").setLocation(Location.newInstance(50,0)).setTimeWindow(TimeWindow.newInstance(100,500)).build();
|
||||
|
||||
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().addVehicle(v).addJob(prevS).addJob(newS).addJob(nextS)
|
||||
.addJob(afterNextS).addJob(afterAfterNextS).build();
|
||||
|
||||
TourActivity prevAct = vrp.getActivities(prevS).get(0);
|
||||
TourActivity newAct = vrp.getActivities(newS).get(0);
|
||||
TourActivity nextAct = vrp.getActivities(nextS).get(0);
|
||||
|
||||
VehicleRoute route = VehicleRoute.Builder.newInstance(v).setJobActivityFactory(vrp.getJobActivityFactory()).addService(prevS).addService(nextS).addService(afterNextS).addService(afterAfterNextS).build();
|
||||
JobInsertionContext context = new JobInsertionContext(route,newS,v,null,0.);
|
||||
|
||||
StateManager stateManager = getStateManager(vrp, route);
|
||||
|
||||
LocalActivityInsertionCostsCalculator calc = new LocalActivityInsertionCostsCalculator(CostFactory.createEuclideanCosts(),new WaitingTimeCosts(),stateManager);
|
||||
calc.setSolutionCompletenessRatio(1.);
|
||||
double c = calc.getCosts(context,prevAct,nextAct,newAct,10);
|
||||
assertEquals(20.,c,0.01);
|
||||
/*
|
||||
activity start time delay at next act = start-time-old - start-time-new is always bigger than subsequent waiting time savings
|
||||
*/
|
||||
/*
|
||||
old = s:40,act1:50,act2:60,act3:70,act4:80 --> w=20
|
||||
new = s:0,act1:10,act2:20,act3:40,act4:50,act5:60 --> w=40 => 20
|
||||
*/
|
||||
}
|
||||
|
||||
private StateManager getStateManager(VehicleRoutingProblem vrp, VehicleRoute route) {
|
||||
StateManager stateManager = new StateManager(vrp);
|
||||
stateManager.addStateUpdater(new UpdateTimeSlack(stateManager,vrp.getTransportCosts()));
|
||||
stateManager.addStateUpdater(new UpdateActivityTimes(vrp.getTransportCosts()));
|
||||
stateManager.addStateUpdater(new UpdateVehicleDependentPracticalTimeWindows(stateManager,vrp.getTransportCosts()));
|
||||
stateManager.addStateUpdater(new UpdateFutureWaitingTimes(stateManager,vrp.getTransportCosts()));
|
||||
stateManager.addStateUpdater(new UpdateDepartureTime(vrp.getTransportCosts()));
|
||||
stateManager.informInsertionStarts(Arrays.asList(route),new ArrayList<Job>());
|
||||
return stateManager;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -35,25 +35,26 @@ public class VariableStartAndWaitingTimeExample {
|
|||
|
||||
public static void main(String[] args) {
|
||||
|
||||
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type").setCostPerDistance(1.5).setCostPerWaitingTime(1.0).build();
|
||||
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type").setCostPerDistance(2.5).setCostPerWaitingTime(2.0).build();
|
||||
// VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("type1").setCostPerDistance(1.5).setCostPerWaitingTime(.0).build();
|
||||
|
||||
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setType(type).setReturnToDepot(true)
|
||||
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
|
||||
VehicleImpl v3 = VehicleImpl.Builder.newInstance("v3").setType(type).setReturnToDepot(true)
|
||||
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
|
||||
VehicleImpl v4 = VehicleImpl.Builder.newInstance("v4").setType(type).setReturnToDepot(true)
|
||||
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
|
||||
.setHasVariableDepartureTime(false).setStartLocation(Location.newInstance(0, 0)).build();
|
||||
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
|
||||
Random r = RandomNumberGeneration.newInstance();
|
||||
for(int i=0;i<20;i++){
|
||||
Service s = Service.Builder.newInstance("s_"+i)
|
||||
for(int i=0;i<40;i++){
|
||||
Service s = Service.Builder.newInstance("s_"+i).setServiceTime(0)
|
||||
// .setTimeWindow(TimeWindow.newInstance(r.nextInt(50),100+r.nextInt(150)))
|
||||
.setLocation(Location.newInstance(1 - r.nextInt(5), 10 + r.nextInt(10))).build();
|
||||
vrpBuilder.addJob(s);
|
||||
}
|
||||
Service s1 = Service.Builder.newInstance("s12").setLocation(Location.newInstance(-3, 15)).setTimeWindow(TimeWindow.newInstance(20, 40)).build();
|
||||
Service s1 = Service.Builder.newInstance("s12").setLocation(Location.newInstance(-3, 15)).setTimeWindow(TimeWindow.newInstance(20, 60)).build();
|
||||
// Service s4 = Service.Builder.newInstance("s13").setLocation(Location.newInstance(5,15)).setTimeWindow(TimeWindow.newInstance(100, 160)).build();
|
||||
Service s2 = Service.Builder.newInstance("s10").setLocation(Location.newInstance(-1, 15)).setTimeWindow(TimeWindow.newInstance(200, 210)).build();
|
||||
Service s2 = Service.Builder.newInstance("s10").setLocation(Location.newInstance(-1, 15)).setTimeWindow(TimeWindow.newInstance(200, 250)).build();
|
||||
Service s3 = Service.Builder.newInstance("s11").setLocation(Location.newInstance(10, 10)).setTimeWindow(TimeWindow.newInstance(300, 310)).build();
|
||||
vrpBuilder.addJob(s1).addJob(s2).addJob(s3).addVehicle(v4).addVehicle(v2).addVehicle(v3);
|
||||
vrpBuilder.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
|
||||
|
|
@ -70,8 +71,8 @@ public class VariableStartAndWaitingTimeExample {
|
|||
return Jsprit.Builder.newInstance(vrp)
|
||||
.addCoreStateAndConstraintStuff(true)
|
||||
.setStateAndConstraintManager(stateManager, constraintManager)
|
||||
.setProperty(Jsprit.Parameter.THRESHOLD_INI, "0.1")
|
||||
.setProperty(Jsprit.Parameter.THRESHOLD_ALPHA, "0.3")
|
||||
// .setProperty(Jsprit.Parameter.THRESHOLD_INI, "0.1")
|
||||
// .setProperty(Jsprit.Parameter.THRESHOLD_ALPHA, "0.3")
|
||||
// .setProperty(Parameter.)
|
||||
// .setProperty(Jsprit.Parameter.CONSTRUCTION, Jsprit.Construction.BEST_INSERTION.toString())
|
||||
.setObjectiveFunction(new SolutionCostCalculator() {
|
||||
|
|
@ -96,7 +97,7 @@ public class VariableStartAndWaitingTimeExample {
|
|||
}
|
||||
};
|
||||
VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
|
||||
vra.setMaxIterations(1000);
|
||||
vra.setMaxIterations(500);
|
||||
vra.addListener(new AlgorithmSearchProgressChartListener("output/search"));
|
||||
VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
|
||||
System.out.println("c: " + solution.getCost());
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue