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fix an issue in the global update

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This commit is contained in:
Sven Czarnian
2021-12-16 10:23:40 +01:00
parent cd5c21d099
commit bb6cacd898
1 changed files with 5 additions and 4 deletions
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9
aman/sys/aco/Colony.py
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@@ -110,10 +110,11 @@ class Colony:
if None == bestCandidate or candidate[0] < bestCandidate[0]: if None == bestCandidate or candidate[0] < bestCandidate[0]:
bestCandidate = candidate bestCandidate = candidate
dTheta = 1.0 / ((candidate[0].total_seconds() / 60.0) or 1.0) if None != bestSequence:
for i in range(1, len(candidate[1])): dTheta = 1.0 / ((bestSequence[0].total_seconds() / 60.0) or 1.0)
update = (1.0 - self.Configuration.Epsilon) * self.PheromoneMatrix[candidate[1][i - 1], candidate[1][i]] + dTheta for i in range(1, len(bestSequence[1])):
self.PheromoneMatrix[candidate[1][i - 1], candidate[1][i]] = max(update, self.Configuration.ThetaZero) update = (1.0 - self.Configuration.Epsilon) * self.PheromoneMatrix[bestSequence[1][i - 1], bestSequence[1][i]] + self.Configuration.Epsilon * dTheta
self.PheromoneMatrix[bestSequence[1][i - 1], bestSequence[1][i]] = max(update, self.Configuration.ThetaZero)
# check if we find a new best candidate # check if we find a new best candidate
if None != bestCandidate: if None != bestCandidate: