def HookeJeevesMove(self):
currentPoint = self.history[self.iIter]
bestPoints = list()
for i in range(len(currentPoint.DV)):
newDV = list()
for j in range(len(currentPoint.DV)):
if i == j:
newDV.append(currentPoint.DV[j] + self.stepSize[j])
else:
newDV.append(currentPoint.DV[j])
newPoint = Solution(Solution.getName(),newDV)
if (not self.isTabu(newPoint)) and (not newPoint.isValid):
self.addIfNotDominated(newPoint,bestPoints)
self.removeDominatedPoints(bestPoints)
newDV = list()
for j in range(len(currentPoint.DV)):
if i == j:
newDV.append(currentPoint.DV[j] - self.stepSize[j])
else:
newDV.append(currentPoint.DV[j])
newPoint = Solution(Solution.getName(),newDV)
if (not self.isTabu(newPoint)) and (not newPoint.isValid):
self.addIfNotDominated(newPoint,bestPoints)
self.removeDominatedPoints(bestPoints)
self.iIter += 1
self.iLocal += 1
nextPoint = self.selectRandom(bestPoints)
self.history.append(nextPoint)
bestPoints.remove(nextPoint)
for remainingPoints in bestPoints:
self.addIfNotDominated(remainingPoint,self.IM)
self.removeDominatedPoints(self.IM)
self.nextMoveHookeJeeves = False
def createChild(self,parent):
""" create a candidate child """
i = self.P.index(parent)
a = i
b = i
c = i
while i == a or i == b or i == c or a == b or a == c or b == c:
a = random.randint(0,len(self.P)-1)
b = random.randint(0,len(self.P)-1)
c = random.randint(0,len(self.P)-1)
mateDV = self.mate(self.P[a],self.P[b],self.P[c])
if self.debug:
for DV in mateDV:
print str(DV)
childDV = self.crossover(self.P[i],DV)
return Solution(Solution.getName(),childDV)
def PatternMove(self):
currentPoint = self.history[self.iIter]
lastPoint = self.history[self.iIter-1]
# find out last move
lastMove = list()
for i in range(len(currentPoint.DV)):
lastMove.append(currentPoint.DV[i] - lastPoint.DV[i])
# recreate last move to current design vector
nextDV = list()
for i in range(len(currentPoint.DV)):
nextDV.append(currentPoint.DV[i] + lastMove[i])
newPoint = Solution(Solution.getName(),nextDV)
newPoint.evaluate()
if newPoint.dominate(currentPoint):
self.iIter += 1
self.iLocal += 1
self.history.append(newPoint)
return True
return False