Mapping of integer, to be more precise binary, variables of the energy optimization problem. More...

#include <vector>
#include <utility>
#include "ILPSolver/VariableMappingLP.h"

Include dependency graph for VariableMappingILP.h:

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Classes
struct	VariableMappingILP
	Mapping of continuous and binary variables. More...

Typedefs
using	map2to1 = std::map< std::pair< uint32_t, uint32_t >, uint32_t >
	Mapping of variables indexed by two numbers.

using	map4toN = std::map< std::pair< uint64_t, uint64_t >, std::vector< uint32_t > >
	Mapping of variables indexed by four numbers.

Functions
std::map< uint32_t, uint32_t >	inverseMapping (const std::vector< double > &solution, const map2to1 &mapping)
	It extracts the variables set to true and returns the ,,selected" indices. More...

Detailed Description

Mapping of integer, to be more precise binary, variables of the energy optimization problem.

Function Documentation

std::map<uint32_t, uint32_t> inverseMapping	(	const std::vector< double > &	solution,
		const map2to1 &	mapping
	)

It extracts the variables set to true and returns the ,,selected" indices.

Parameters

solution	A solution of the ILP problem.
mapping	A mapping of some binary variables.

Returns: A map containing the indices (keys of mapping) of binary variables set to true.
1 // Solution of an ILP problem.

2 vector<double> sol = { 0.0, 0.0, 1.0, 0.0, 1.0, 0.0 };

3 // Mapping of variables, e.g. {{activity id, location id}, index}*.

4 map2to1 mapping = { {{0,0},0}, {{0,1},1}, {{0,2},2}, {{1,3},3}, {{1,4},4}, {{1,5},5} };

5 // It returns {{0,2}, {1,4}}, for our example above it means that locations

6 // with id 2 and 4 were selected for activities 0 and 1, respectively.

7 const auto& ret = inverseMapping(sol, mapping);