1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Linq;
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4 | using HeuristicLab.Random;
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5 |
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6 | namespace HeuristicLab.Problems.Instances.DataAnalysis {
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7 | public class Feynman92 : FeynmanDescriptor {
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8 | private readonly int testSamples;
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9 | private readonly int trainingSamples;
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10 |
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11 | public Feynman92() : this((int) DateTime.Now.Ticks, 10000, 10000) { }
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12 |
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13 | public Feynman92(int seed) {
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14 | Seed = seed;
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15 | trainingSamples = 10000;
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16 | testSamples = 10000;
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17 | }
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18 |
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19 | public Feynman92(int seed, int trainingSamples, int testSamples) {
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20 | Seed = seed;
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21 | this.trainingSamples = trainingSamples;
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22 | this.testSamples = testSamples;
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23 | }
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24 |
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25 | public override string Name {
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26 | get { return string.Format("Feynman III.12.43 n*(h/(2*pi)) | {0} samples", trainingSamples); }
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27 | }
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28 |
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29 | protected override string TargetVariable { get { return "L"; } }
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30 | protected override string[] VariableNames { get { return new[] {"n", "h", "L"}; } }
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31 | protected override string[] AllowedInputVariables { get { return new[] {"n", "h"}; } }
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32 |
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33 | public int Seed { get; private set; }
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34 |
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35 | protected override int TrainingPartitionStart { get { return 0; } }
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36 | protected override int TrainingPartitionEnd { get { return trainingSamples; } }
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37 | protected override int TestPartitionStart { get { return trainingSamples; } }
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38 | protected override int TestPartitionEnd { get { return trainingSamples + testSamples; } }
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39 |
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40 | protected override List<List<double>> GenerateValues() {
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41 | var rand = new MersenneTwister((uint) Seed);
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42 |
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43 | var data = new List<List<double>>();
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44 | var n = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 5).ToList();
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45 | var h = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 5).ToList();
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46 |
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47 | var L = new List<double>();
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48 |
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49 | data.Add(n);
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50 | data.Add(h);
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51 | data.Add(L);
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52 |
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53 | for (var i = 0; i < n.Count; i++) {
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54 | var res = n[i] * (h[i]);
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55 | L.Add(res);
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56 | }
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57 |
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58 | return data;
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59 | }
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60 | }
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61 | } |
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