xgboost/tests/cpp/objective/test_ranking_obj.cc
Jiaming Yuan ac457c56a2
Use `UpdateAllowUnknown' for non-model related parameter. (#4961)
* Use `UpdateAllowUnknown' for non-model related parameter.

Model parameter can not pack an additional boolean value due to binary IO
format.  This commit deals only with non-model related parameter configuration.

* Add tidy command line arg for use-dmlc-gtest.
2019-10-23 05:50:12 -04:00

80 lines
2.5 KiB
C++

// Copyright by Contributors
#include <xgboost/objective.h>
#include <xgboost/generic_parameters.h>
#include "../helpers.h"
#include <xgboost/json.h>
namespace xgboost {
TEST(Objective, DeclareUnifiedTest(PairwiseRankingGPair)) {
std::vector<std::pair<std::string, std::string>> args;
xgboost::GenericParameter lparam = xgboost::CreateEmptyGenericParam(GPUIDX);
std::unique_ptr<xgboost::ObjFunction> obj {
xgboost::ObjFunction::Create("rank:pairwise", &lparam)
};
obj->Configure(args);
CheckConfigReload(obj, "rank:pairwise");
// Test with setting sample weight to second query group
CheckRankingObjFunction(obj,
{0, 0.1f, 0, 0.1f},
{0, 1, 0, 1},
{2.0f, 0.0f},
{0, 2, 4},
{1.9f, -1.9f, 0.0f, 0.0f},
{1.995f, 1.995f, 0.0f, 0.0f});
CheckRankingObjFunction(obj,
{0, 0.1f, 0, 0.1f},
{0, 1, 0, 1},
{1.0f, 1.0f},
{0, 2, 4},
{0.95f, -0.95f, 0.95f, -0.95f},
{0.9975f, 0.9975f, 0.9975f, 0.9975f});
ASSERT_NO_THROW(obj->DefaultEvalMetric());
}
TEST(Objective, DeclareUnifiedTest(NDCG_Json_IO)) {
xgboost::GenericParameter tparam;
tparam.UpdateAllowUnknown(Args{});
std::unique_ptr<xgboost::ObjFunction> obj {
xgboost::ObjFunction::Create("rank:ndcg", &tparam)
};
obj->Configure(Args{});
Json j_obj {Object()};
obj->SaveConfig(&j_obj);
ASSERT_EQ(get<String>(j_obj["name"]), "rank:ndcg");;
auto const& j_param = j_obj["lambda_rank_param"];
ASSERT_EQ(get<String>(j_param["num_pairsample"]), "1");
ASSERT_EQ(get<String>(j_param["fix_list_weight"]), "0");
}
TEST(Objective, DeclareUnifiedTest(PairwiseRankingGPairSameLabels)) {
std::vector<std::pair<std::string, std::string>> args;
xgboost::GenericParameter lparam = xgboost::CreateEmptyGenericParam(GPUIDX);
std::unique_ptr<ObjFunction> obj {
ObjFunction::Create("rank:pairwise", &lparam)
};
obj->Configure(args);
// No computation of gradient/hessian, as there is no diversity in labels
CheckRankingObjFunction(obj,
{0, 0.1f, 0, 0.1f},
{1, 1, 1, 1},
{2.0f, 0.0f},
{0, 2, 4},
{0.0f, 0.0f, 0.0f, 0.0f},
{0.0f, 0.0f, 0.0f, 0.0f});
ASSERT_NO_THROW(obj->DefaultEvalMetric());
}
} // namespace xgboost