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#include <chrono>
#include <tuple>
#include <algorithm>
#include "common_defs.h"
#include "matching_distance.h"
namespace md {
Real matching_distance(const Bifiltration& bif_a, const Bifiltration& bif_b,
CalculationParams& params)
{
Real result;
// compute distance only in one dimension
if (params.dim != CalculationParams::ALL_DIMENSIONS) {
BifiltrationProxy bifp_a(bif_a, params.dim);
BifiltrationProxy bifp_b(bif_a, params.dim);
DistanceCalculator<BifiltrationProxy> runner(bifp_a, bifp_b, params);
result = runner.distance();
params.n_hera_calls = runner.get_hera_calls_number();
} else {
// compute distance in all dimensions, return maximal
result = -1;
for(int dim = 0; dim < std::max(bif_a.maximal_dim(), bif_b.maximal_dim()); ++dim) {
BifiltrationProxy bifp_a(bif_a, params.dim);
BifiltrationProxy bifp_b(bif_a, params.dim);
DistanceCalculator<BifiltrationProxy> runner(bifp_a, bifp_b, params);
result = std::max(result, runner.distance());
params.n_hera_calls += runner.get_hera_calls_number();
}
}
return result;
}
Real matching_distance(const ModulePresentation& mod_a, const ModulePresentation& mod_b,
CalculationParams& params)
{
DistanceCalculator<ModulePresentation> runner(mod_a, mod_b, params);
Real result = runner.distance();
params.n_hera_calls = runner.get_hera_calls_number();
return result;
}
std::istream& operator>>(std::istream& is, BoundStrategy& s)
{
std::string ss;
is >> ss;
if (ss == "bruteforce") {
s = BoundStrategy::bruteforce;
} else if (ss == "local_grob") {
s = BoundStrategy::local_dual_bound;
} else if (ss == "local_combined") {
s = BoundStrategy::local_combined;
} else if (ss == "local_refined") {
s = BoundStrategy::local_dual_bound_refined;
} else if (ss == "local_for_each_point") {
s = BoundStrategy::local_dual_bound_for_each_point;
} else {
throw std::runtime_error("UNKNOWN BOUND STRATEGY");
}
return is;
}
BoundStrategy bs_from_string(std::string s)
{
std::stringstream ss(s);
BoundStrategy result;
ss >> result;
return result;
}
TraverseStrategy ts_from_string(std::string s)
{
std::stringstream ss(s);
TraverseStrategy result;
ss >> result;
return result;
}
std::istream& operator>>(std::istream& is, TraverseStrategy& s)
{
std::string ss;
is >> ss;
if (ss == "DFS") {
s = TraverseStrategy::depth_first;
} else if (ss == "BFS") {
s = TraverseStrategy::breadth_first;
} else if (ss == "BFS-VAL") {
s = TraverseStrategy::breadth_first_value;
} else if (ss == "UB") {
s = TraverseStrategy::upper_bound;
} else {
throw std::runtime_error("UNKNOWN TRAVERSE STRATEGY");
}
return is;
}
std::ostream& operator<<(std::ostream& os, const UbExperimentRecord& r)
{
os << r.time << "\t" << r.n_hera_calls << "\t" << r.error << "\t" << r.lower_bound << "\t" << r.upper_bound;
return os;
}
std::ostream& operator<<(std::ostream& os, const BoundStrategy& s)
{
switch(s) {
case BoundStrategy::bruteforce :
os << "bruteforce";
break;
case BoundStrategy::local_dual_bound :
os << "local_grob";
break;
case BoundStrategy::local_combined :
os << "local_combined";
break;
case BoundStrategy::local_dual_bound_refined :
os << "local_refined";
break;
case BoundStrategy::local_dual_bound_for_each_point :
os << "local_for_each_point";
break;
default:
os << "FORGOTTEN BOUND STRATEGY";
}
return os;
}
std::ostream& operator<<(std::ostream& os, const TraverseStrategy& s)
{
switch(s) {
case TraverseStrategy::depth_first :
os << "DFS";
break;
case TraverseStrategy::breadth_first :
os << "BFS";
break;
case TraverseStrategy::breadth_first_value :
os << "BFS-VAL";
break;
case TraverseStrategy::upper_bound :
os << "UB";
break;
default:
os << "FORGOTTEN TRAVERSE STRATEGY";
}
return os;
}
}
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