def update(f,cf, frontier, curr_candidate_sol,baseline_min,baseline_max,total=0.0, n=0):
global eraDict, eraCount , eraTracker, crr_era, prev_era, terminateCount, terminator, eraList, a12Factor, eraDictCount
# print "FROM UPDATE -->", curr_candidate_sol
for x in frontier:
s = x.score
curr_candidate_sol.decisionVec = x.have
new = extrapolate(frontier,x,f,cf,curr_candidate_sol,baseline_min,baseline_max)
# new_normalized_score = (new.score - BaseLine.baseline_min) / ( BaseLine.baseline_max - BaseLine.baseline_min + 0.001)
new_normalized_score = (new.score - BaseLine.baseline_min) / ( BaseLine.baseline_max - BaseLine.baseline_min)
obj_list = []
for objective in new.objectives:
obj_list.append(objective)
eraList.append(obj_list)
if eraCount ==19:
## comparing prev and current
crr_era = sorted(eraList, reverse=True)
#print("Current era: ", crr_era)
eraDict[eraDictCount] = crr_era
eraDictCount = eraDictCount + 1
a12Output = utilities.a12(crr_era, prev_era)
if a12Output <= a12Factor:
terminateCount = terminateCount + 1
eraList = []
eraCount = 0
prev_era = crr_era
else:
# print "eraDictCount: %s" %(eraDictCount)
# print "eraCount: %s" %(eraCount)
eraCount += 1
if terminateCount >= terminator:
break
# print "new_score:", new.score
# print "extrapolated vector:", new.have
# print "parent :", s
if new.score < s:
# print "+++++++++++++++++++++++++++++++++++++++"
# print "new.have=", new.have
# print "x.have=", x.have
# print "new.score=", new.score
# print "s=", s
x.score = new.score
x.have = new.have
total +=x.score
# print "x.score:", x.score
# print "total:", total
# print "n:", n
total +=x.score
n += 1
return total,n
def SimulatedAnnealing(modelParam):
###print purpose
output = ""
cntForQ=0
cntForExcl=0
cntForPlus=0
cntForDot=0
printCounter = 0
eMaxVal = 0
curr_sol=modelParam()
best_sol =modelParam()
best_sol.copy(curr_sol)
#print("Before ... ", curr_sol.getCurrentBaseline())
#print("isBaseLineSet:", BaseLine.is_baseline_set)
if BaseLine.is_baseline_set == False:
#curr_sol.updateBaseline(BaseLine.getInitialBaseline(modelParam))
initialBaseline = BaseLine.getInitialBaseline(modelParam)
#print("Output of initial baseline ", initialBaseline)
BaseLine.baseline_min = initialBaseline[0]
BaseLine.baseline_max = initialBaseline[1]
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_sol.updateBaseline(newBaseLine)
else:
#print("HO GAYA TRUE")
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_sol.updateBaseline(newBaseLine)
#print("newBaseLine:", newBaseLine)
#print("BaseLine Min:", BaseLine.baseline_min)
#print("BaseLine Max:", BaseLine.baseline_max)
#print( "After ... ", curr_sol.getCurrentBaseline())
#exit
## kMaxVal is always fixed to 1000 !
kMaxVal=1000
#counter = 0
counter = 1000
## to keep track of eras
eraDict = {}
eraCount = 0
eraTracker = 50
crr_era, prev_era = [], [0 for _ in range(curr_sol.numOfDec)]
terminateCount = 0
terminator = 10
eraList = []
a12Factor = 0.56
eraDictCount = 0
while (counter > 0) and (curr_sol.sumOfObjs() > eMaxVal):
printCounter = printCounter + 1
neighbor_sol=generateNeighbor(curr_sol, randint(0, curr_sol.numOfDec-1), modelParam)
if neighbor_sol.sumOfObjs() < best_sol.sumOfObjs():
best_sol.copy(neighbor_sol)
curr_sol.copy(neighbor_sol)
cntForExcl = cntForExcl + 1
output = output + "!"
elif neighbor_sol.sumOfObjs() < curr_sol.sumOfObjs():
curr_sol.copy(neighbor_sol)
cntForPlus = cntForPlus + 1
output = output + "+"
elif fetchProbOfAcceptance(neighbor_sol.sumOfObjs(), curr_sol.sumOfObjs(), float(counter)/float(kMaxVal)) > random():
curr_sol.copy(neighbor_sol)
cntForQ = cntForQ + 1
output = output + "?"
else:
output = output + "."
cntForDot = cntForDot + 1
if printCounter % eraTracker == 0:
#print("\ncounter={}, best energy seen so far={}, '?'={}, '!'={}, '+'={}, '.'={}, output={}".format(printCounter, best_sol.sumOfObjs(), cntForQ, cntForExcl, cntForPlus, cntForDot, output))
cntForQ = 0
cntForExcl = 0
cntForPlus = 0
cntForDot = 0
output = ""
## era purpose
if BaseLine.baseline_min > best_sol.sumOfObjs():
BaseLine.baseline_min = best_sol.sumOfObjs()
if BaseLine.baseline_max < best_sol.sumOfObjs():
BaseLine.baseline_max = best_sol.sumOfObjs()
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_sol.updateBaseline(newBaseLine)
if eraCount ==19:
## comparing prev and current
crr_era = sorted(eraList, reverse=True)
#print("Current era: ", crr_era)
eraDict[eraDictCount] = crr_era
#print ("Contents of the dictionary ", eraDict[eraDictCount])
eraDictCount = eraDictCount + 1
#print ("era dict count ", eraDictCount)
a12Output = utilities.a12(crr_era, prev_era)
if a12Output <= a12Factor:
terminateCount = terminateCount + 1
eraList = []
eraCount = 0
prev_era = crr_era
#print("era count ={}, era dict= {}, a12={}, terminator={}".format(eraCount, prev_era, crr_era, a12Output, terminateCount))
else:
eraList.append(best_sol.getobj())
eraCount += 1
#print("era count ... ", eraCount)
if terminateCount >= terminator:
break
# if curr_sol.sumOfObjs() < curr_sol.getCurrentBaseline()[0]:
# curr_sol.updateBaseline( [curr_sol.sumOfObjs(), curr_sol.getCurrentBaseline()[1]])
# # print("+++++^^BASELINE UPDATED")
# if curr_sol.sumOfObjs() > curr_sol.getCurrentBaseline()[1]:
# curr_sol.updateBaseline([curr_sol.getCurrentBaseline()[0], curr_sol.sumOfObjs()])
#print("+++++^^BASELINE UPDATED MILA MAX")
#exit()
# #DOUBT
# if curr_sol.sumOfObjs() > 12.7814799596:
# print("GREATER THAN 13")
# #exit()
#print("current energy ", curr_sol.sumOfObjs())
counter = counter - 1
#counter= counter + 1
#Update Global Baseline :
#print(curr_sol.getCurrentBaseline());
BaseLine.baseline_min = curr_sol.getCurrentBaseline()[0]
BaseLine.baseline_max = curr_sol.getCurrentBaseline()[1]
BaseLine.is_baseline_set = True
#print("BaseLine Min:", BaseLine.baseline_min)
#print("BaseLine Max:", BaseLine.baseline_max)
#print("Era Dict Count :", eraDictCount)
#print("Era Dictionary First:", eraDict[1])
#print("-------------------------------------------------------------------------------------")
#print("Era Dictionary Last:", eraDict[eraDictCount])
#print("-------------------------------------------------------------------------------------")
_printSolution(best_sol.decisionVec, best_sol.sumOfObjs(), best_sol.getobj(), printCounter)
_printEndMsg(SimulatedAnnealing.__name__)
# print("------------------------------------------------------------------------------------------------")
# print("Era dictionary First:=", eraDict[1])
# print("Era dictionary Last:=", eraDict[eraDictCount])
# print("------------------------------------------------------------------------------------------------")
#print("era dict ", len(eraDict[1]))
#exit()
return eraDict
def MaxWalkSat(model, maxTries=100, maxChanges=10, threshold=0, p=0.5, step=10):
printCounter = 0
####
#print purpose
output = ""
printCounter = 0
cnt_Exc = 0
cnt_Que = 0
cnt_Dot = 0
cnt_Pls = 0
## to keep track of eras
eraDict = {}
eraCount = 0
eraTracker = 50
temporary_sol= model() # Just for getting the object
crr_era, prev_era = [], [0 for _ in xrange(temporary_sol.numOfDec)]
terminateCount = 0
terminator = 10
eraList = []
a12Factor = 0.56
eraDictCount = 0
#print("isBaseLineSet:", BaseLine.is_baseline_set)
for cntTry in range(maxTries):
curr_solve_for_model = model()
if BaseLine.is_baseline_set == False:
#curr_sol.updateBaseline(BaseLine.getInitialBaseline(modelParam))
initialBaseline = BaseLine.getInitialBaseline(model)
#print("Output of initial baseline ", initialBaseline)
BaseLine.baseline_min = initialBaseline[0]
BaseLine.baseline_max = initialBaseline[1]
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_solve_for_model.updateBaseline(newBaseLine)
else:
#print("HO GAYA TRUE")
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_solve_for_model.updateBaseline(newBaseLine)
# print("newBaseLine:", newBaseLine)
if cntTry==0:
sbest=model()
sbest.copy(curr_solve_for_model)
for cng in range(maxChanges):
printCounter = printCounter + 1
if curr_solve_for_model.sumOfObjs() < threshold:
print("\n Got lucky !. \n Found the solution early for {} by MaxWlakSat at step {} \n".format(model.__name__, printCounter))
sbest.copy(curr_solve_for_model)
_printSolution(curr_solve_for_model.decisionVec, curr_solve_for_model.sumOfObjs(), curr_solve_for_model.getobj(), printCounter)
_printEndMsg(MaxWalkSat.__name__)
return sbest.decisionVec
decToMutate=randint(0, curr_solve_for_model.numOfDec-1)
## keeping tack of values before mutating annd labeling them as old
score_old = curr_solve_for_model.sumOfObjs()
oldModel = model()
oldModel.copy(curr_solve_for_model)
if p < random():
curr_solve_for_model=generateNeighbor(curr_solve_for_model, decToMutate, model)
else:
#curr_solve_for_model=_mutateSelectivelyWithModifiedRange(model, curr_solve_for_model, decToMutate, step)
curr_solve_for_model=_mutateSelectively(model, curr_solve_for_model, decToMutate, step)
## lets heck teh ebhavior !
if curr_solve_for_model.sumOfObjs() < sbest.sumOfObjs():
sbest.copy(curr_solve_for_model)
#'?' means muatted solution is better than best soultuion
# btw, we are only interested in the best and we keep that
output = output + "?"
cnt_Que = cnt_Que + 1
elif curr_solve_for_model.sumOfObjs() < score_old:
#'!' means muatted solution is better than old soultuion
output = output + "!"
cnt_Exc = cnt_Exc + 1
elif curr_solve_for_model.sumOfObjs() >= score_old:
## '+' means old solution is better than mutated solution
output = output + "+"
cnt_Pls = cnt_Pls + 1
else:
output = output + "."
cnt_Dot = cnt_Dot + 1
# if printCounter % 40 == 0:
if printCounter % eraTracker == 0:
#print("itrations so far={} '?'={}, '!'={}, '+'={}, '.'={}, output={} ".format(printCounter, cnt_Que, cnt_Exc, cnt_Pls, cnt_Dot,output))
#print(output + '\n')
output = ""
cnt_Que = 0
cnt_Exc = 0
cnt_Pls = 0
cnt_Dot = 0
## era purpose
if BaseLine.baseline_min > sbest.sumOfObjs():
BaseLine.baseline_min = sbest.sumOfObjs()
if BaseLine.baseline_max < sbest.sumOfObjs():
BaseLine.baseline_max = sbest.sumOfObjs()
newBaseLine = [BaseLine.baseline_min, BaseLine.baseline_max]
curr_solve_for_model.updateBaseline(newBaseLine)
if eraCount ==19:
## comparing prev and current
crr_era = sorted(eraList, reverse=True)
#print("Current era:", curr_era)
eraDict[eraDictCount] = crr_era
eraDictCount = eraDictCount + 1
a12Output = utilities.a12(crr_era, prev_era)
if a12Output <= a12Factor:
terminateCount = terminateCount + 1
eraList = []
eraCount = 0
prev_era = crr_era
#print("era count ={}, era dict= {}, a12={}, terminator={}".format(eraCount, prev_era, crr_era, a12Output, terminateCount))
else:
eraList.append(sbest.getobj())
eraCount += 1
if terminateCount >= terminator:
break
# if curr_solve_for_model.sumOfObjs() < curr_solve_for_model.getCurrentBaseline()[0]:
# curr_solve_for_model.updateBaseline( [curr_solve_for_model.sumOfObjs(), curr_solve_for_model.getCurrentBaseline()[1]])
# # print("+++++^^BASELINE UPDATED")
# if curr_solve_for_model.sumOfObjs() > curr_solve_for_model.getCurrentBaseline()[1]:
# curr_solve_for_model.updateBaseline([curr_solve_for_model.getCurrentBaseline()[0], curr_solve_for_model.sumOfObjs()])
#print("+++++^^BASELINE UPDATED MILA MAX")
#exit()
#Update Global Baseline :
#print(curr_solve_for_model.getCurrentBaseline());
BaseLine.baseline_min = curr_solve_for_model.getCurrentBaseline()[0]
BaseLine.baseline_max = curr_solve_for_model.getCurrentBaseline()[1]
BaseLine.is_baseline_set = True
#print("BaseLine Min:", BaseLine.baseline_min)
#print("BaseLine Max:", BaseLine.baseline_max)
#print("Era Dict Count :", eraDictCount)
#print("Era Dictionary First:", eraDict[1])
#print("-------------------------------------------------------------------------------------")
#print("Era Dictionary Last:", eraDict[eraDictCount])
#print("-------------------------------------------------------------------------------------")
_printSolution(sbest.decisionVec, sbest.sumOfObjs() , sbest.getobj(), printCounter)
_printEndMsg(MaxWalkSat.__name__)
return eraDict
