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rv:: kohonen:: bugfix

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This commit is contained in:
Zeno Rogue 2022-03-01 08:43:42 +01:00
parent 85d0173d36
commit beb47aeb26
1 changed files with 12 additions and 6 deletions
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18
rogueviz/kohonen.cpp
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@ -684,12 +684,18 @@ void step() {
cellcrawler& s = scc[cid.first]; cellcrawler& s = scc[cid.first];
s.sprawl(cellwalker(n.where, cid.second)); s.sprawl(cellwalker(n.where, cid.second));
vector<double> fake(1,1); vector<float> fake(0,0);
/* for(auto& sd: s.data)
fake.push_back(exp(-sqr(sd.dist/sigma))); */
int dispersion_count = isize(s.dispersion);
int dispid = int(dispersion_count * tt);
auto it = gaussian ? fake.begin() : s.dispersion[dispid].begin(); auto it = gaussian ? fake.begin() : s.dispersion[dispid].begin();
for(auto& sd: s.data) { for(auto& sd: s.data) {
neuron *n2 = getNeuron(sd.target.at); neuron *n2 = getNeuron(sd.target.at);
if(!n2) continue; if(!n2) { it++; continue; }
n2->debug++; n2->debug++;
double nu = learning_factor; double nu = learning_factor;
@ -703,15 +709,15 @@ void step() {
for(int k=0; k<columns; k++) { for(int k=0; k<columns; k++) {
n2->net[k] += nu * (data[id].val[k] - n2->net[k]); n2->net[k] += nu * (data[id].val[k] - n2->net[k]);
if(isnan(n2->net[k])) /* if(isnan(n2->net[k]))
throw hr_exception("obtained nan somehow, nu = " + lalign(0, nu)); throw hr_exception("obtained nan somehow, nu = " + lalign(0, nu)); */
} }
} }
for(auto& n2: net) { /* for(auto& n2: net) {
if(n2.debug > 1) throw hr_exception("sprawler error"); if(n2.debug > 1) throw hr_exception("sprawler error");
n2.debug = 0; n2.debug = 0;
} } */
t--; t--;
if(t == 0) analyze(); if(t == 0) analyze();