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/**
* @file wn_grad_test.cpp
* @author Marcus Edel
*
* Test file for the WNGrad optimizer.
*
* ensmallen is free software; you may redistribute it and/or modify it under
* the terms of the 3-clause BSD license. You should have received a copy of
* the 3-clause BSD license along with ensmallen. If not, see
* http://www.opensource.org/licenses/BSD-3-Clause for more information.
*/
#if defined(ENS_USE_COOT)
#include <armadillo>
#include <bandicoot>
#endif
#include <ensmallen.hpp>
#include "catch.hpp"
#include "test_function_tools.hpp"
#include "test_types.hpp"
using namespace ens;
using namespace ens::test;
TEMPLATE_TEST_CASE("WNGrad_LogisticRegressionFunction", "[WNGrad]",
ENS_ALL_CPU_TEST_TYPES)
{
WNGrad optimizer(0.56, 1, 500000, 1e-9, true);
LogisticRegressionFunctionTest<TestType, arma::Row<size_t>>(optimizer);
}
TEMPLATE_TEST_CASE("WNGrad_SphereFunction", "[WNGrad]", ENS_ALL_TEST_TYPES)
{
WNGrad optimizer(1.12, 2, 500000, 1e-9, true);
FunctionTest<SphereFunction, TestType>(
optimizer,
Tolerances<TestType>::LargeObj,
Tolerances<TestType>::LargeCoord);
}
// The Styblinski-Tang function is too difficult to make converge for WNGrad in
// low precision.
TEMPLATE_TEST_CASE("WNGrad_StyblinskiTangFunction", "[WNGrad]",
ENS_FULLPREC_TEST_TYPES, ENS_SPARSE_TEST_TYPES)
{
WNGrad optimizer(1.12, 2, 500000, 1e-9, true);
FunctionTest<StyblinskiTangFunction, TestType>(
optimizer,
5 * Tolerances<TestType>::LargeObj,
5 * Tolerances<TestType>::LargeCoord);
}
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