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add option to set abs. initial threshold

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oblonski 2017-05-11 16:42:48 +02:00
parent c1c140e683
commit 69537d109c
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1 changed files with 13 additions and 8 deletions
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21
jsprit-core/src/main/java/com/graphhopper/jsprit/core/algorithm/box/Jsprit.java
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@ -112,6 +112,7 @@ public class Jsprit {
WORST_MAX_SHARE("worst.max_share"),
THRESHOLD_ALPHA("threshold.alpha"),
THRESHOLD_INI("threshold.ini"),
THRESHOLD_INI_ABS("threshold.ini_abs"),
INSERTION_NOISE_LEVEL("insertion.noise_level"),
INSERTION_NOISE_PROB("insertion.noise_prob"),
RUIN_WORST_NOISE_LEVEL("worst.noise_level"),
@ -602,15 +603,19 @@ public class Jsprit {
IterationStartsListener schrimpfThreshold = null;
if(acceptor == null) {
final SchrimpfAcceptance schrimpfAcceptance = new SchrimpfAcceptance(1, toDouble(getProperty(Parameter.THRESHOLD_ALPHA.toString())));
schrimpfThreshold = new IterationStartsListener() {
@Override
public void informIterationStarts(int i, VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions) {
if (i == 1) {
double initialThreshold = Solutions.bestOf(solutions).getCost() * toDouble(getProperty(Parameter.THRESHOLD_INI.toString()));
schrimpfAcceptance.setInitialThreshold(initialThreshold);
if (properties.containsKey(Parameter.THRESHOLD_INI_ABS.toString())) {
schrimpfAcceptance.setInitialThreshold(Double.valueOf(properties.getProperty(Parameter.THRESHOLD_INI_ABS.toString())));
} else {
schrimpfThreshold = new IterationStartsListener() {
@Override
public void informIterationStarts(int i, VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions) {
if (i == 1) {
double initialThreshold = Solutions.bestOf(solutions).getCost() * toDouble(getProperty(Parameter.THRESHOLD_INI.toString()));
schrimpfAcceptance.setInitialThreshold(initialThreshold);
}
}
}
};
};
}
acceptor = schrimpfAcceptance;
}