Last change
on this file since 286 was
286,
checked in by Maciej Komosinski, 10 years ago
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Updated headers
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Property svn:eol-style set to
native
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File size:
1.1 KB
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1 | // This file is a part of Framsticks SDK. http://www.framsticks.com/ |
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2 | // Copyright (C) 1999-2015 Maciej Komosinski and Szymon Ulatowski. |
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3 | // See LICENSE.txt for details. |
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4 | |
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5 | #include "neuroimpl-simple.h" |
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6 | |
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7 | #define NEURO_MAX 10.0 |
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8 | #define OVERLOAD 0.1 |
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9 | #define MUSCLESPEED 0.08 |
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10 | #define MUSCLEACC 0.01 |
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11 | |
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12 | int NI_StdNeuron::lateinit() |
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13 | { |
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14 | #ifdef MODEL_V1_COMPATIBLE |
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15 | if (inertia<0) inertia=neuro->inertia; |
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16 | if (force<0) force=neuro->force; |
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17 | if (sigmo>1e9) sigmo=neuro->sigmo; |
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18 | #endif |
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19 | istate=newstate+neuro->state; // neuro->state -> random initialization |
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20 | calcOutput(); |
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21 | neuro->state=newstate; |
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22 | return 1; |
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23 | } |
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24 | |
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25 | void NI_StdNeuron::calcInternalState() |
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26 | { |
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27 | double sum=getWeightedInputSum(); |
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28 | velocity=force*(sum-istate)+inertia*velocity; |
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29 | istate+=velocity; |
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30 | if (istate>NEURO_MAX) istate=NEURO_MAX; |
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31 | else if (istate<-NEURO_MAX) istate=-NEURO_MAX; |
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32 | } |
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33 | |
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34 | void NI_StdNeuron::go() |
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35 | { |
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36 | calcInternalState(); |
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37 | calcOutput(); |
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38 | } |
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39 | |
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40 | void NI_StdNeuron::calcOutput() |
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41 | { |
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42 | double s=istate * sigmo; |
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43 | if (s<-30.0) setState(-1); |
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44 | else setState(2.0/(1.0+exp(-s))-1.0); // -1...1 |
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45 | } |
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46 | |
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47 | void NI_StdUNeuron::calcOutput() |
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48 | { |
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49 | double s=istate * sigmo; |
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50 | if (s<-30.0) setState(0); |
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51 | else setState(1.0/(1.0+exp(-s))); // 0...1 |
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52 | } |
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