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fix: used an unordered_map instead of vactor to save indexes

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This commit is contained in:
Alessandro Sidero 2025-04-15 00:23:31 +02:00
commit df1ebb94dd
1 changed files with 10 additions and 7 deletions
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17
eo/src/eoRanking.h
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@ -148,7 +148,6 @@ public:
*/
virtual void operator()(const eoPop<EOT> &_pop)
{
unsigned pSize = _pop.size();
if (pSize <= 1)
@ -170,16 +169,19 @@ public:
std::vector<const EOT *> rank;
_pop.sort(rank);
// vector of indices sorted by fitness
std::vector<size_t> indices(pSize);
for (size_t i = 0; i < pSize; ++i)
indices[i] = i;
// map of indices for the population
std::unordered_map<const EOT *, unsigned> indexMap;
for (unsigned i = 0; i < pSize; ++i)
{
indexMap[&_pop[i]] = i;
}
if (exponent == 1.0) // no need for exponetial then (linear case)
{
for (unsigned i = 0; i < pSize; i++)
{
int which = indices[i];
const EOT *indiv = rank[i];
int which = indexMap[indiv];
value()[which] = cached_alpha * (pSize - i) + cached_beta;
}
}
@ -187,7 +189,8 @@ public:
{
for (unsigned i = 0; i < pSize; i++)
{
int which = indices[i];
const EOT *indiv = rank[i];
int which = indexMap[indiv];
// value in in [0,1]
double tmp = ((double)(pSize - i)) / pSize;
// to the exponent, and back to [m,M]