1 | using System; |
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2 | using System.Collections.Generic; |
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3 | using System.Collections; |
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4 | using System.Linq; |
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5 | using System.Text; |
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6 | |
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7 | namespace BCMToolbox |
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8 | { |
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9 | public interface INetwork : IEnumerable |
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10 | { |
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11 | int Count |
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12 | { |
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13 | get; |
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14 | } |
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15 | |
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16 | object SyncRoot |
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17 | { |
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18 | get; |
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19 | } |
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20 | |
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21 | double this[int indexer] |
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22 | { |
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23 | get; |
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24 | } |
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25 | |
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26 | double this[int from, int to] |
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27 | { |
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28 | get; |
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29 | } |
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30 | |
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31 | string Identification |
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32 | { |
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33 | get; |
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34 | } |
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35 | |
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36 | int UID |
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37 | { |
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38 | get; |
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39 | } |
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40 | |
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41 | int Ticks |
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42 | { |
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43 | get; |
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44 | } |
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45 | |
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46 | void Initialize(Func<int, int, double> initializerWeights, Func<int, double> initializerPotentials); |
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47 | void Initialize(double hiBoundaryWeights, double hiBoundaryPotentials); |
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48 | void ApplyInputs(double[] inputs); |
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49 | void Propagate(); |
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50 | |
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51 | event EventHandler WeightsChanged; |
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52 | event EventHandler PotentialsChanged; |
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53 | event EventHandler TickProgress; |
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54 | } |
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55 | |
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56 | public interface INetworkMonitor |
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57 | { |
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58 | Func<INetwork, double[]> KernelFunction |
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59 | { |
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60 | get; |
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61 | } |
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62 | |
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63 | void RegisterNorm(double[] newNorm); |
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64 | } |
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65 | |
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66 | |
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67 | [Serializable] |
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68 | public class NetworkState : INetwork |
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69 | { |
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70 | double[,] __weights = null; |
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71 | double[] __outputs = null; |
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72 | object __syncRoot = new object(); |
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73 | int __uid = 0; |
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74 | int __ticks = 0; |
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75 | string __ident = null; |
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76 | |
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77 | public NetworkState(INetwork copyFrom) |
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78 | { |
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79 | __weights = new double[copyFrom.Count, copyFrom.Count]; |
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80 | __outputs = new double[copyFrom.Count]; |
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81 | __uid = copyFrom.UID; |
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82 | __ident = copyFrom.Identification; |
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83 | lock (copyFrom.SyncRoot) |
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84 | { |
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85 | __ticks = copyFrom.Ticks; |
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86 | for (int i = 0; i < copyFrom.Count; i++) |
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87 | { |
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88 | __outputs[i] = copyFrom[i]; |
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89 | for (int j = 0; j < copyFrom.Count; j++) |
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90 | __weights[i, j] = copyFrom[i, j]; |
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91 | } |
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92 | } |
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93 | |
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94 | |
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95 | } |
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96 | |
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97 | #region INetwork Members |
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98 | |
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99 | public int Count |
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100 | { |
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101 | get |
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102 | { |
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103 | return __outputs.Length; |
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104 | } |
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105 | } |
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106 | |
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107 | public object SyncRoot |
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108 | { |
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109 | get |
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110 | { |
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111 | return __syncRoot; |
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112 | } |
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113 | } |
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114 | |
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115 | public double this[int indexer] |
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116 | { |
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117 | get |
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118 | { |
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119 | return __outputs[indexer]; |
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120 | } |
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121 | } |
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122 | |
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123 | public double this[int from, int to] |
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124 | { |
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125 | get |
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126 | { |
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127 | return __weights[from, to]; |
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128 | } |
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129 | } |
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130 | |
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131 | public string Identification |
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132 | { |
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133 | get |
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134 | { |
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135 | return __ident; |
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136 | } |
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137 | } |
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138 | |
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139 | public int UID |
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140 | { |
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141 | get |
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142 | { |
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143 | return __uid; |
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144 | } |
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145 | } |
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146 | |
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147 | public int Ticks |
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148 | { |
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149 | get |
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150 | { |
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151 | return __ticks; |
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152 | } |
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153 | } |
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154 | |
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155 | public void Initialize(Func<int, int, double> initializerWeights, Func<int, double> initializerPotentials) |
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156 | { |
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157 | throw new NotSupportedException("This is but a lifeless clone."); |
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158 | } |
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159 | |
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160 | public void Initialize(double hiBoundaryWeights, double hiBoundaryPotentials) |
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161 | { |
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162 | throw new NotSupportedException("This is but a lifeless clone."); |
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163 | } |
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164 | |
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165 | public void ApplyInputs(double[] inputs) |
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166 | { |
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167 | throw new NotSupportedException("This is but a lifeless clone."); |
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168 | } |
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169 | |
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170 | public void Propagate() |
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171 | { |
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172 | throw new NotSupportedException("This is but a lifeless clone."); |
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173 | } |
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174 | |
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175 | public event EventHandler WeightsChanged; |
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176 | |
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177 | public event EventHandler PotentialsChanged; |
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178 | |
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179 | public event EventHandler TickProgress; |
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180 | |
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181 | |
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182 | #endregion |
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183 | |
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184 | #region IEnumerable Members |
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185 | |
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186 | public IEnumerator GetEnumerator() |
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187 | { |
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188 | return __outputs.GetEnumerator(); |
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189 | } |
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190 | |
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191 | #endregion |
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192 | } |
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193 | |
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194 | public abstract class TraceableNetwork : INetwork |
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195 | { |
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196 | object __syncRoot = new object(); |
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197 | int __uid = 0; |
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198 | int __ticks = 0; |
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199 | |
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200 | protected TraceableNetwork(int newUID) |
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201 | { |
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202 | __uid = newUID; |
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203 | } |
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204 | |
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205 | public override string ToString() |
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206 | { |
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207 | StringBuilder toRet = new StringBuilder(); |
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208 | for (int i = 0; i < this.Count; i++) |
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209 | { |
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210 | toRet.AppendLine(""); |
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211 | toRet.AppendFormat("{0} -> ", this[i].ToString("#0.0000")); |
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212 | for (int j = 0; j < this.Count; j++) |
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213 | toRet.AppendFormat("{0} ", this[i, j].ToString("#0.0000")); |
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214 | } |
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215 | toRet.AppendLine(""); |
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216 | |
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217 | return toRet.ToString(); |
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218 | } |
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219 | |
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220 | |
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221 | #region Network State Duplicates |
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222 | NetworkState __lastState = null; |
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223 | public NetworkState BuildNetworkState() |
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224 | { |
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225 | __lastState = new NetworkState(this); |
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226 | if (this.NetworkStateRefreshed != null) |
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227 | this.NetworkStateRefreshed(this, EventArgs.Empty); |
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228 | return __lastState; |
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229 | } |
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230 | public NetworkState GetLastNetworkState() |
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231 | { |
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232 | return __lastState; |
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233 | } |
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234 | |
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235 | public event EventHandler NetworkStateRefreshed; |
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236 | #endregion |
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237 | |
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238 | #region INetwork Members |
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239 | |
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240 | public abstract int Count |
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241 | { |
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242 | get; |
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243 | } |
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244 | |
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245 | public object SyncRoot |
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246 | { |
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247 | get |
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248 | { |
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249 | return __syncRoot; |
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250 | } |
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251 | } |
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252 | |
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253 | public abstract double this[int indexer] |
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254 | { |
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255 | get; |
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256 | internal set; |
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257 | } |
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258 | |
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259 | public abstract double this[int from, int to] |
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260 | { |
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261 | get; |
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262 | internal set; |
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263 | } |
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264 | |
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265 | public abstract string Identification |
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266 | { |
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267 | get; |
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268 | } |
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269 | |
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270 | public int UID |
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271 | { |
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272 | get |
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273 | { |
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274 | return __uid; |
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275 | } |
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276 | } |
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277 | |
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278 | public int Ticks |
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279 | { |
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280 | get |
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281 | { |
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282 | return __ticks; |
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283 | } |
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284 | } |
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285 | |
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286 | public virtual void Initialize(Func<int, int, double> initializerWeights, Func<int, double> initializerPotentials) |
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287 | { |
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288 | lock (SyncRoot) |
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289 | { |
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290 | for (int i = 0; i < this.Count; i++) |
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291 | for (int j = 0; j < Count; j++) |
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292 | if (!double.IsNaN(this[i, j])) |
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293 | this[i, j] = initializerWeights(i, j); |
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294 | for (int i = 0; i < this.Count; i++) |
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295 | this[i] = initializerPotentials(i); |
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296 | } |
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297 | |
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298 | __ticks = 0; |
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299 | if (this.PotentialsChanged != null) |
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300 | this.PotentialsChanged(this, EventArgs.Empty); |
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301 | if (this.WeightsChanged != null) |
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302 | this.WeightsChanged(this, EventArgs.Empty); |
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303 | } |
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304 | |
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305 | |
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306 | // Initializes using a uniform random number distribution with two boundaries |
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307 | public void Initialize(double hiBoundaryWeights, double hiBoundaryPotentials) |
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308 | { |
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309 | Random r = new Random(); |
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310 | Initialize( |
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311 | // (i, j) => (r.NextDouble() * 2 * hiBoundaryWeights - hiBoundaryWeights), i => (r.NextDouble() * hiBoundaryPotentials)); |
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312 | (i, j) => (r.NextDouble() * hiBoundaryWeights), i => (r.NextDouble() * hiBoundaryPotentials)); |
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313 | } |
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314 | |
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315 | |
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316 | public virtual void ApplyInputs(double[] inputs) |
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317 | { |
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318 | this.OnPotentialsChanged(); |
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319 | } |
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320 | |
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321 | |
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322 | public virtual void Propagate() |
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323 | { |
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324 | __ticks++; |
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325 | this.OnPotentialsChanged(); |
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326 | this.OnWeightsChanged(); |
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327 | this.OnTickProgress(); |
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328 | |
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329 | |
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330 | UpdateMonitors(); |
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331 | } |
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332 | |
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333 | protected void OnPotentialsChanged() |
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334 | { |
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335 | if (this.PotentialsChanged != null) |
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336 | this.PotentialsChanged(this, EventArgs.Empty); |
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337 | } |
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338 | |
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339 | protected void OnWeightsChanged() |
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340 | { |
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341 | if (this.WeightsChanged != null) |
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342 | this.WeightsChanged(this, EventArgs.Empty); |
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343 | } |
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344 | |
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345 | protected void OnTickProgress() |
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346 | { |
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347 | if (this.TickProgress != null) |
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348 | this.TickProgress(this, EventArgs.Empty); |
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349 | } |
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350 | |
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351 | public event EventHandler WeightsChanged; |
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352 | |
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353 | public event EventHandler PotentialsChanged; |
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354 | |
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355 | public event EventHandler TickProgress; |
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356 | |
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357 | #endregion |
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358 | |
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359 | #region IEnumerable Members |
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360 | |
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361 | public abstract IEnumerator GetEnumerator(); |
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362 | |
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363 | |
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364 | #endregion |
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365 | |
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366 | #region Graphing With Kernels |
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367 | List<INetworkMonitor> __monitors = new List<INetworkMonitor>(); |
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368 | |
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369 | public void RegisterMonitor(INetworkMonitor newMonitor) |
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370 | { |
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371 | lock (__syncRoot) |
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372 | __monitors.Add(newMonitor); |
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373 | } |
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374 | |
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375 | void UpdateMonitors() |
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376 | { |
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377 | foreach (INetworkMonitor inm in __monitors) |
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378 | { |
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379 | double[] norm = inm.KernelFunction(this); |
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380 | inm.RegisterNorm(norm); |
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381 | } |
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382 | } |
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383 | |
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384 | |
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385 | #endregion |
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386 | |
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387 | #region Utilities |
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388 | public void NormalizeWeights(double degree) |
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389 | { |
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390 | double sum = 0.0; |
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391 | |
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392 | if (degree != 2.0) |
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393 | { |
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394 | for (int i = 0; i < Count; i++) |
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395 | for (int j = 0; j < Count; j++) |
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396 | if ((i != j) && !double.IsNaN(this[i, j])) |
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397 | sum += Math.Pow(this[i, j], degree); |
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398 | |
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399 | sum = Math.Pow(sum, 1 / degree); |
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400 | } |
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401 | else |
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402 | { |
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403 | for (int i = 0; i < Count; i++) |
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404 | for (int j = 0; j < Count; j++) |
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405 | if ((i != j) && !double.IsNaN(this[i, j])) |
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406 | sum += this[i,j]*this[i,j]; |
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407 | |
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408 | sum = Math.Sqrt(sum); |
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409 | } |
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410 | |
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411 | for (int i = 0; i < Count; i++) |
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412 | for (int j = 0; j < Count; j++) |
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413 | if ((i != j) && !double.IsNaN(this[i, j])) |
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414 | this[i, j] = this[i, j] / sum; |
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415 | |
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416 | } |
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417 | |
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418 | public void NormalizePotentials(double degree) |
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419 | { |
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420 | double sum = 0.0; |
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421 | |
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422 | if (degree != 2.0) |
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423 | { |
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424 | for (int i = 0; i < Count; i++) |
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425 | sum += Math.Pow(this[i], degree); |
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426 | |
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427 | sum = Math.Pow(sum, 1 / degree); |
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428 | } |
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429 | else |
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430 | { |
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431 | for (int i = 0; i < Count; i++) |
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432 | sum += this[i] * this[i]; |
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433 | |
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434 | sum = Math.Sqrt(sum); |
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435 | } |
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436 | |
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437 | for (int i = 0; i < Count; i++) |
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438 | this[i] = this[i] / sum; |
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439 | } |
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440 | #endregion |
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441 | } |
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442 | |
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443 | public abstract class FixedTraceableNetwork : TraceableNetwork |
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444 | { |
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445 | protected double[,] __weights = null; |
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446 | protected double[] __potentials = null; |
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447 | protected FixedTraceableNetwork(int neuronCount, int newUID) |
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448 | : base(newUID) |
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449 | { |
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450 | __weights = new double[neuronCount, neuronCount]; |
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451 | __potentials = new double[neuronCount]; |
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452 | } |
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453 | |
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454 | public override int Count |
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455 | { |
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456 | get |
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457 | { |
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458 | return __potentials.Length; |
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459 | } |
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460 | } |
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461 | |
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462 | public override double this[int indexer] |
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463 | { |
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464 | get |
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465 | { |
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466 | return __potentials[indexer]; |
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467 | } |
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468 | internal set |
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469 | { |
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470 | __potentials[indexer] = value; |
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471 | } |
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472 | } |
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473 | |
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474 | public override double this[int from, int to] |
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475 | { |
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476 | get |
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477 | { |
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478 | return __weights[from, to]; |
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479 | } |
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480 | internal set |
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481 | { |
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482 | __weights[from, to] = value; |
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483 | } |
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484 | } |
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485 | |
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486 | public override System.Collections.IEnumerator GetEnumerator() |
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487 | { |
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488 | return __potentials.GetEnumerator(); |
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489 | } |
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490 | } |
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491 | } |
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