[17364] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using System.Collections;
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| 24 | using System.Collections.Generic;
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| 25 | using System.Linq;
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| 26 | using HeuristicLab.Core;
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[17365] | 27 | using HeuristicLab.Problems.DataAnalysis;
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[17364] | 28 | using HeuristicLab.Random;
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| 29 |
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| 30 | namespace HeuristicLab.Problems.Instances.DataAnalysis {
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| 31 | public class VectorDataTestOne : ArtificialRegressionDataDescriptor {
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| 32 |
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| 33 | public override string Name { get { return "Vector Data Test - I (Y = X1 * sum(V1) + X2 * avg(V2)"; } }
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| 34 | public override string Description { get { return ""; } }
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| 35 |
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| 36 | protected override string TargetVariable { get { return "Y"; } }
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| 37 | protected override string[] VariableNames { get { return new string[] { "X1", "X2", "X3", "V1", "V2", "Y" }; } }
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| 38 | protected override string[] AllowedInputVariables { get { return new string[] { "X1", "X2", "X3", "V1", "V2" }; } }
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| 39 | protected override int TrainingPartitionStart { get { return 0; } }
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| 40 | protected override int TrainingPartitionEnd { get { return 80; } }
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| 41 | protected override int TestPartitionStart { get { return 80; } }
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| 42 | protected override int TestPartitionEnd { get { return 100; } }
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| 43 |
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| 44 | public int Seed { get; private set; }
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| 45 |
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| 46 | public VectorDataTestOne()
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| 47 | : this((int)DateTime.Now.Ticks) { }
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| 48 | public VectorDataTestOne(int seed)
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| 49 | : base() {
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| 50 | Seed = seed;
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| 51 | }
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| 52 |
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| 53 |
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| 54 | protected override List<List<double>> GenerateValues() { return null; }
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| 55 | protected override List<IList> GenerateValuesExtended() {
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| 56 | var rand = new MersenneTwister((uint)Seed);
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| 57 |
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| 58 | double x1, x2, x3;
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[17365] | 59 | DoubleVector v1, v2;
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[17364] | 60 | double y;
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| 61 |
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| 62 | var x1Column = new List<double>(100);
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| 63 | var x2Column = new List<double>(100);
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| 64 | var x3Column = new List<double>(100);
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[17365] | 65 | var v1Column = new List<DoubleVector>(100);
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| 66 | var v2Column = new List<DoubleVector>(100);
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[17364] | 67 | var yColumn = new List<double>(100);
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| 68 |
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| 69 | for (int i = 0; i < 100; i++) {
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| 70 | x1 = GetRandomDouble(-2, 2, rand);
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| 71 | x2 = GetRandomDouble(2, 6, rand);
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| 72 | x3 = GetRandomDouble(0, 1, rand);
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| 73 | int length = rand.Next(3, 6);
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| 74 | v1 = GetRandomDoubleVector(-2, 2, length, rand);
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| 75 | v2 = GetRandomDoubleVector(3, 5, length, rand);
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| 76 | y = x1 * v1.Sum() + x2 * v2.Average();
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| 77 |
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| 78 | x1Column.Add(x1);
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| 79 | x2Column.Add(x2);
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| 80 | x3Column.Add(x3);
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| 81 | v1Column.Add(v1);
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| 82 | v2Column.Add(v2);
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| 83 | yColumn.Add(y);
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| 84 | }
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| 85 |
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| 86 | return new List<IList> { x1Column, x2Column, x3Column, v1Column, v2Column, yColumn };
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| 87 | }
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| 88 |
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| 89 |
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| 90 | private static double GetRandomDouble(double min, double max, IRandom rand) {
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| 91 | return (max - min) * rand.NextDouble() + min;
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| 92 | }
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[17365] | 93 | private static DoubleVector GetRandomDoubleVector(double min, double max, int length, IRandom rand) {
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[17364] | 94 | var values = new double[length];
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| 95 | for (int i = 0; i < values.Length; i++) {
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| 96 | values[i] = GetRandomDouble(min, max, rand);
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| 97 | }
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[17365] | 98 | return new DoubleVector(values);
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[17364] | 99 | }
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| 100 | }
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| 101 | }
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