Fix problem with minimization functions that reach 0 value

antoniogi · Nov 15, 2024 · ac7e93b · ac7e93b
1 parent 6eac9e8
commit ac7e93b
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Showing 3 changed files with 12 additions and 5 deletions.
diff --git a/src/ProblemCristina.py b/src/ProblemCristina.py
@@ -37,7 +37,8 @@ def __init__(self):
     def solve(self, solution):
         val = random.randint(0, 1000000)
         solution.setValue(val)
-#        print("ProblemCristina. Solution found with value: " + str(val))
+#        if val==0:
+#            print("ProblemCristina. Solution found with value: " + str(val))
         return val
 
     def extractSolution(self):

diff --git a/src/SolutionsQueue.py b/src/SolutionsQueue.py
@@ -325,7 +325,10 @@ def GetTotalSolutionsValues(self):
         total_sum = 0.0
         for i in range(self.qSize()):
             sol_tuple = self.__queue[i]
-            total_sum += 1.0 / float(sol_tuple[1])
+            if float(sol_tuple[1])==0.0:
+                total_sum += util.infinity/100
+            else:
+                total_sum += 1.0 / float(sol_tuple[1])
         return total_sum
 
     """
@@ -338,7 +341,10 @@ def GetTupleOnPriorityByValue(self, value):
         total_val = self.GetTotalSolutionsValues()
         for i in range(self.qSize()):
             if util.objective == util.objectiveType.MINIMIZE:
-                temp_sum += float(1.0 / float(self.__queue[i][1]))
+                if float(self.__queue[i][1])==0.0:
+                    temp_sum += util.infinity
+                else:
+                    temp_sum += float(1.0 / float(self.__queue[i][1]))
             else:
                 temp_sum += float(self.__queue[i][1])
             util.logger.debug("TempSum: " + str(temp_sum) + "/" +

diff --git a/src/SolverDAB.py b/src/SolverDAB.py
@@ -758,7 +758,7 @@ def receiveSolutions(self):
                            str(sys.exc_info()[2].tb_lineno))
             try:
                 u.logger.info("SOLVERDAB. Received solution with value " + str(solVal[0]) + " from bee " + str(beeIdx[0]))
-                if (float(solVal[0]) > 0.0 and float(solVal[0]) < u.infinity / 100):
+                if (float(solVal[0]) >= 0.0 and float(solVal[0]) < u.infinity / 100):
                     #Add the solution to the list of best solutions (the method will implement the
                     #priority list)
                     solutionTemp = None
@@ -837,7 +837,7 @@ def receiveSolutions(self):
                     self.__finishedSolutions.PutSolution(solutionTemp, solVal[0], beeIdx[0])
                     u.logger.info("DRIVER. Solution (value " + str(solVal[0]) +
                                   ") added to the list of finished solutions")
-                    if (float(solVal[0]) > 0.0 and float(solVal[0])<(u.infinity/100.0)):
+                    if (float(solVal[0]) >= 0.0 and float(solVal[0])<(u.infinity/100.0)):
                         if isNewBest:
                             parameters = solutionTemp.getParameters()
                             if (self.__useMatrix):