Example #1
0
        static void Main(string[] args)
        {
            //真实数据集
            //string[] filepath = { "../Data/RealData/S1_500.txt", "../Data/RealData/S2_500.txt", "../Data/RealData/S3_500.txt", "../Data/RealData/S4_500.txt", "../Data/RealData/S5_500.txt" };//数据集规模500
            string[] filepath = { "../Data/RealData/S1_400.txt", "../Data/RealData/S2_400.txt", "../Data/RealData/S3_400.txt", "../Data/RealData/S4_400.txt", "../Data/RealData/S5_400.txt" };//数据集规模400
            //string[] filepath = { "../Data/RealData/S1_300.txt", "../Data/RealData/S2_300.txt", "../Data/RealData/S3_300.txt", "../Data/RealData/S4_300.txt", "../Data/RealData/S5_300.txt" };//数据集规模300
            //string[] filepath = { "../Data/RealData/S1_200.txt", "../Data/RealData/S2_200.txt", "../Data/RealData/S3_200.txt", "../Data/RealData/S4_200.txt", "../Data/RealData/S5_200.txt" };//数据集规模200
            //string[] filepath = { "../Data/RealData/S1_100.txt", "../Data/RealData/S2_100.txt", "../Data/RealData/S3_100.txt", "../Data/RealData/S4_100.txt", "../Data/RealData/S5_100.txt" };//数据集规模100

            //随机数据集
            //string[] filepath = { "../Data/Random/S1_500.txt", "../Data/Random/S2_500.txt", "../Data/Random/S3_500.txt", "../Data/Random/S4_500.txt", "../Data/Random/S5_500.txt" };//数据集规模500
            //string[] filepath = { "../Data/Random/S1_400.txt", "../Data/Random/S2_400.txt", "../Data/Random/S3_400.txt", "../Data/Random/S4_400.txt", "../Data/Random/S5_400.txt" };//数据集规模400
            //string[] filepath = { "../Data/Random/S1_300.txt", "../Data/Random/S2_300.txt", "../Data/Random/S3_300.txt", "../Data/Random/S4_300.txt", "../Data/Random/S5_300.txt" };//数据集规模300
            //string[] filepath = { "../Data/Random/S1_200.txt", "../Data/Random/S2_200.txt", "../Data/Random/S3_200.txt", "../Data/Random/S4_200.txt", "../Data/Random/S5_200.txt" };//数据集规模200
            //string[] filepath = { "../Data/Random/S1_100.txt", "../Data/Random/S2_100.txt", "../Data/Random/S3_100.txt", "../Data/Random/S4_100.txt", "../Data/Random/S5_100.txt" };//数据集规模100

            GA_Server        bestserver = new GA_Server();
            List <GA_Server> scrlist    = new List <GA_Server>();

            List <Server>[] wlist = new List <Server> [ConstNum.PARTICE_DIM];
            double          fit = 0, totaltime = 0;

            wlist = GetData.splitedatafromfile(filepath, ConstNum.PARTICE_DIM);
            Timing dobj     = new Timing();
            int    sum      = 0;
            double totalfit = 0;
            double RMSE     = 0;

            double[] ttfit = new double[101];
            for (int i = 0; i < 100; i++)
            {
                scrlist = GA_Server.GetinitGA_server(wlist);

                dobj.startTime();
                bestserver = GA.GetBest(scrlist, wlist, ref fit);
                dobj.StopTime();

                totaltime += dobj.Result().Milliseconds;
                totaltime += dobj.Result().Seconds * 1000;
                totalfit  += fit;
                ttfit[i]   = fit;

                if (Math.Abs(fit - 0.5608) <= 0.0005)//QWS--500,400
                {
                    sum++;
                }
                //if (Math.Abs(fit - 0.6835) <= 0.0005)//QWS-300
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 0.7802) <= 0.0005)//QWS-200
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 0.8733) <= 0.0005)//QWS-100
                //{
                //    sum++;
                //}

                //if (Math.Abs(fit - 1.4482) <= 0.0005)//RWS--500
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 1.4569) <= 0.0005)//RWS--400
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 1.4742) <= 0.0005)//RWS--300
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 1.5292) <= 0.0005)//RWS--200
                //{
                //    sum++;
                //}
                //if (Math.Abs(fit - 1.5711) <= 0.0005)//RWS--100
                //{
                //    sum++;
                //}
                Console.WriteLine("Best fit={0}", fit);
                Console.WriteLine("The Best combination is {0},{1},{2},{3},{4}", bestserver.getIndextask(0), bestserver.getIndextask(1), bestserver.getIndextask(2), bestserver.getIndextask(3), bestserver.getIndextask(4));

                Console.WriteLine("The time cost is {0}ms,{1}s,********{2}", dobj.Result().Milliseconds, dobj.Result().Seconds, sum);
            }
            //求均方根误差
            for (int i = 0; i < 100; i++)
            {
                RMSE += (ttfit[i] - totalfit / 100) * (ttfit[i] - totalfit / 100);
            }
            RMSE = RMSE / 100;
            RMSE = Math.Sqrt(RMSE);
            //Console.WriteLine("Average is {0},time is {1},RMSE is {2},*******{3}", totalfit/ 100, totaltime / 100,RMSE,(double)sum/100);
            Console.WriteLine("Average is {0}", totalfit / 100);
            Console.WriteLine("time is {0}", totaltime / 100);
            Console.WriteLine("RMSE is {0}", RMSE);
            Console.WriteLine("*******{0}", (double)sum / 100);
            Console.ReadKey();
        }
Example #2
0
        public static GA_Server GetBest(List <GA_Server> scrlist, List <Server>[] wlist, ref double fit)//scrlist表示初始种群,wlist表示子服务集
        {
            GA_Server        globalbest = new GA_Server();
            double           bestfit    = 100;
            Random           rad        = new Random();
            List <GA_Server> dlist      = new List <GA_Server>();

            for (int i = 0; i < scrlist.Count; i++)
            {
                dlist.Add(new GA_Server());
            }
            for (int t = 0; t < ConstNum.T; t++)
            {
                for (int i = 0; i < scrlist.Count; i++)//求每个粒子的适应度
                {
                    scrlist[i].fitness(wlist);
                }
                for (int i = 0; i < scrlist.Count; i++)//保留每次进化产生的最优粒子
                {
                    if (bestfit > scrlist[i].Fit)
                    {
                        bestfit = scrlist[i].Fit;
                        int[] a = new int[ConstNum.PARTICE_DIM];
                        for (int k = 0; k < ConstNum.PARTICE_DIM; k++)
                        {
                            a[k] = scrlist[i].getIndextask(k);
                        }
                        globalbest.setservers(a);
                    }
                }
                //选择
                List <GA_Server> temp = new List <GA_Server>();
                for (int i = 0; i < ConstNum.NP; i++)
                {
                    temp.Add(new GA_Server());
                }
                double tfit = 0;
                //scrlist=GA.GA_Sort_fitness(scrlist);
                for (int i = 0; i < ConstNum.NP; i++)
                {
                    int[] a = new int[ConstNum.PARTICE_DIM];
                    for (int k = 0; k < ConstNum.PARTICE_DIM; k++)
                    {
                        a[k] = scrlist[i].getIndextask(k);
                    }
                    temp[i].setservers(a);
                    temp[i].Fit = 1 / scrlist[i].Fit;
                    tfit       += temp[i].Fit;
                }
                double tt = 0;
                for (int i = 0; i < ConstNum.NP; i++)              //两个for循环,轮盘赌选择
                {
                    tt         += temp[i].Fit;
                    temp[i].Fit = tt / tfit;
                }
                for (int i = 0; i < ConstNum.NP; i++)
                {
                    double po;
                    int    pos = 0, j;
                    po = rad.NextDouble();
                    for (j = 0; j < ConstNum.NP - 1; j++)
                    {
                        if (po < temp[j].Fit && j == 0)
                        {
                            pos = j;
                        }
                        else
                        {
                            if (po >= temp[j].Fit && po < temp[j + 1].Fit)
                            {
                                pos = j + 1;
                                break;
                            }
                        }
                    }
                    int[] a = new int[ConstNum.PARTICE_DIM];
                    for (int k = 0; k < ConstNum.PARTICE_DIM; k++)
                    {
                        a[k] = temp[pos].getIndextask(k);
                    }
                    dlist[i].setservers(a);
                    dlist[i].Fit = scrlist[pos].Fit;
                }

                //交叉:随机选择父体,进行交叉
                //GA_Sort_fitness(scrlist);
                int[] CrossoverNum = new int[(int)(ConstNum.crossover * ConstNum.NP)];
                for (int i = 0; i < CrossoverNum.Length; i++)
                {
                    int rad1, rad2, rad3;//rad1表示父本1;rad2表示父本2;rad3交叉位置
                    while (true)
                    {
                        rad1 = rad.Next(0, dlist.Count);
                        rad2 = rad.Next(0, dlist.Count);
                        if (rad1 != rad2)
                        {
                            break;
                        }
                    }
                    rad3 = rad.Next(0, ConstNum.PARTICE_DIM);
                    int a = 0;
                    for (int j = rad3; j < ConstNum.PARTICE_DIM; j++)
                    {
                        a = dlist[rad1].getIndextask(j);
                        dlist[rad1].setIndextask(j, dlist[rad2].getIndextask(j));
                        dlist[rad2].setIndextask(j, a);
                    }
                }
                //变异
                for (int i = 0; i < (int)(ConstNum.Mutation * scrlist.Count); i++)
                {
                    int rd1, rd2, rd3;//rd1表示待变异的算子编号;rd2表示变异的位置;rd3表示变异结果
                    rd1 = rad.Next(0, scrlist.Count);
                    rd2 = rad.Next(0, ConstNum.PARTICE_DIM);
                    rd3 = rad.Next(0, wlist[rd2].Count);
                    dlist[rd1].setIndextask(rd2, rd3);
                }
                //新种群产生
                for (int i = 0; i < scrlist.Count; i++)
                {
                    int[] a = new int[ConstNum.PARTICE_DIM];
                    for (int k = 0; k < ConstNum.PARTICE_DIM; k++)
                    {
                        a[k] = dlist[i].getIndextask(k);
                    }
                    scrlist[i].setservers(a);
                }
            }
            fit = bestfit;
            return(globalbest);
        }