79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/**************************************************************************************************
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* LibNeural++ v.0.4 - All-purpose library for managing neural networks *
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* Copyright (C) 2009, BlackLight *
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* *
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* This program is free software: you can redistribute it and/or modify it under the terms of the *
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* GNU General Public License as published by the Free Software Foundation, either version 3 of *
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* the License, or (at your option) any later version. This program is distributed in the hope *
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* that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
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* more details. You should have received a copy of the GNU General Public License along with *
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* this program. If not, see <http://www.gnu.org/licenses/>. *
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**************************************************************************************************/
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#include <cstdlib>
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#include "neural++.hpp"
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namespace neuralpp {
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Synapsis::Synapsis(Neuron * i, Neuron * o, double (*a) (double)) {
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srand((unsigned) time(NULL));
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delta = 0;
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prev_delta = 0;
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weight = RAND;
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in = i;
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out = o;
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actv_f = a;
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}
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Synapsis::Synapsis(Neuron * i, Neuron * o,
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double w, double (*a) (double)) {
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delta = 0;
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prev_delta = 0;
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weight = w;
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in = i;
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out = o;
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actv_f = a;
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}
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Neuron *Synapsis::getIn() const {
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return in;
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}
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Neuron *Synapsis::getOut() const {
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return out;
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}
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double Synapsis::getWeight() const {
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return weight;
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}
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double Synapsis::getDelta() const {
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return delta;
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}
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double Synapsis::getPrevDelta() const {
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return prev_delta;
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}
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void Synapsis::setWeight(double w) throw(InvalidSynapticalWeightException) {
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if (weight > 1.0)
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throw InvalidSynapticalWeightException();
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weight = w;
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}
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void Synapsis::setDelta(double d) throw(InvalidSynapticalWeightException) {
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prev_delta = delta;
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delta = d;
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}
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double Synapsis::momentum(int N, int x) const {
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return (BETA0 * N) / (20 * x + N);
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}
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}
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