Exemplo n.º 1
0
    def test_same_predictions_country_as_categorical_sklearn_model_binary_reward(
            self):
        """
        Tests sklearn Linear model + binary reward.
        """
        reward_type = "binary"

        raw_data = shuffle(Datasets._raw_data_binary_reward)
        rand_idx = 0
        test_input = raw_data.iloc[rand_idx]

        data = preprocessor.preprocess_data(
            raw_data,
            Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
            reward_type,
            shuffle_data=
            False,  # don't shuffle so we can test the same observation
        )

        _X, _y = preprocessor.data_to_pytorch(data)
        X_COUNTRY_CATEG_BINARY_REWARD = {
            "X_train": {
                "X_float": _X["X_float"][:Datasets._offset_binary_reward]
            },
            "y_train": _y[:Datasets._offset_binary_reward],
            "X_test": {
                "X_float": _X["X_float"][Datasets._offset_binary_reward:]
            },
            "y_test": _y[Datasets._offset_binary_reward:],
        }

        model = model_constructors.build_linear_model(reward_type=reward_type)

        pre_serialized_predictor = BanditPredictor(
            feature_config=Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
            float_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["float_feature_order"],
            id_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["id_feature_order"],
            id_feature_str_to_int_map=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["id_feature_str_to_int_map"],
            transforms=Datasets.DATA_COUNTRY_CATEG_BINARY_REWARD["transforms"],
            imputers=Datasets.DATA_COUNTRY_CATEG_BINARY_REWARD["imputers"],
            model=model,
            model_type="linear_bandit",
            reward_type=reward_type,
            model_spec=None,
        )

        skorch_net = model_trainers.fit_sklearn_model(
            reward_type=reward_type,
            model=model,
            X=X_COUNTRY_CATEG_BINARY_REWARD["X_train"],
            y=X_COUNTRY_CATEG_BINARY_REWARD["y_train"],
        )

        pre_serialized_predictor.config_to_file(self.tmp_config_path)
        pre_serialized_predictor.model_to_file(self.tmp_net_path)

        post_serialized_predictor = BanditPredictor.predictor_from_file(
            self.tmp_config_path, self.tmp_net_path)

        pre_pred = pre_serialized_predictor.predict(
            json.loads(test_input.context))
        post_pred = post_serialized_predictor.predict(
            json.loads(test_input.context))

        assert np.allclose(pre_pred["scores"], post_pred["scores"], self.tol)
        assert pre_pred["ids"] == post_pred["ids"]
Exemplo n.º 2
0
    def test_same_predictions_country_as_dense_id_list(self):
        raw_data = shuffle(Datasets._raw_data)
        rand_idx = 0
        test_input = raw_data.iloc[rand_idx]

        data = preprocessor.preprocess_data(
            raw_data,
            Params.FEATURE_CONFIG_COUNTRY_AS_DENSE_ID_LIST,
            Params.ML_CONFIG["reward_type"],
            shuffle_data=
            False,  # don't shuffle so we can test the same observation
        )

        _X, _y = preprocessor.data_to_pytorch(data)
        X_COUNTRY_DENSE_ID_LIST = {
            "X_train": {
                "X_float": _X["X_float"][:Datasets._offset]
            },
            "y_train": _y[:Datasets._offset],
            "X_test": {
                "X_float": _X["X_float"][Datasets._offset:]
            },
            "y_test": _y[Datasets._offset:],
        }

        model_spec, pytorch_net = model_constructors.build_pytorch_net(
            feature_specs=Params.
            FEATURE_CONFIG_COUNTRY_AS_DENSE_ID_LIST["features"],
            product_sets=Params.
            FEATURE_CONFIG_COUNTRY_AS_DENSE_ID_LIST["product_sets"],
            float_feature_order=Datasets.
            DATA_COUNTRY_DENSE_ID_LIST["final_float_feature_order"],
            id_feature_order=Datasets.
            DATA_COUNTRY_DENSE_ID_LIST["final_id_feature_order"],
            reward_type=Params.ML_CONFIG["reward_type"],
            layers=self.model_params["layers"],
            activations=self.model_params["activations"],
            input_dim=trainer.num_float_dim(
                Datasets.DATA_COUNTRY_DENSE_ID_LIST),
        )

        pre_serialized_predictor = BanditPredictor(
            feature_config=Params.FEATURE_CONFIG_COUNTRY_AS_DENSE_ID_LIST,
            float_feature_order=Datasets.
            DATA_COUNTRY_DENSE_ID_LIST["float_feature_order"],
            id_feature_order=Datasets.
            DATA_COUNTRY_DENSE_ID_LIST["id_feature_order"],
            id_feature_str_to_int_map=Datasets.
            DATA_COUNTRY_DENSE_ID_LIST["id_feature_str_to_int_map"],
            transforms=Datasets.DATA_COUNTRY_DENSE_ID_LIST["transforms"],
            imputers=Datasets.DATA_COUNTRY_DENSE_ID_LIST["imputers"],
            model=pytorch_net,
            model_type=self.model_type,
            reward_type=Params.ML_CONFIG["reward_type"],
            model_spec=model_spec,
        )

        skorch_net = model_trainers.fit_custom_pytorch_module_w_skorch(
            reward_type=Params.ML_CONFIG["reward_type"],
            model=pre_serialized_predictor.model,
            X=X_COUNTRY_DENSE_ID_LIST["X_train"],
            y=X_COUNTRY_DENSE_ID_LIST["y_train"],
            hyperparams=self.model_params,
        )

        pre_serialized_predictor.config_to_file(self.tmp_config_path)
        pre_serialized_predictor.model_to_file(self.tmp_net_path)

        post_serialized_predictor = BanditPredictor.predictor_from_file(
            self.tmp_config_path, self.tmp_net_path)

        pre_pred = pre_serialized_predictor.predict(
            json.loads(test_input.context))
        post_pred = post_serialized_predictor.predict(
            json.loads(test_input.context))

        assert np.allclose(pre_pred["scores"], post_pred["scores"], self.tol)
        assert pre_pred["ids"] == post_pred["ids"]
Exemplo n.º 3
0
    def test_same_predictions_country_as_categorical_binary_reward(self):
        reward_type = "binary"

        raw_data = shuffle(Datasets._raw_data_binary_reward)
        rand_idx = 0
        test_input = raw_data.iloc[rand_idx]

        data = preprocessor.preprocess_data(
            raw_data,
            Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
            reward_type,
            shuffle_data=
            False,  # don't shuffle so we can test the same observation
        )

        _X, _y = preprocessor.data_to_pytorch(data)
        X_COUNTRY_CATEG_BINARY_REWARD = {
            "X_train": {
                "X_float": _X["X_float"][:Datasets._offset_binary_reward]
            },
            "y_train": _y[:Datasets._offset_binary_reward],
            "X_test": {
                "X_float": _X["X_float"][Datasets._offset_binary_reward:]
            },
            "y_test": _y[Datasets._offset_binary_reward:],
        }

        model_spec, pytorch_net = model_constructors.build_pytorch_net(
            feature_specs=Params.
            FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL["features"],
            product_sets=Params.
            FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL["product_sets"],
            float_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["final_float_feature_order"],
            id_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["final_id_feature_order"],
            reward_type=reward_type,
            layers=self.model_params["layers"],
            activations=self.model_params["activations"],
            input_dim=trainer.num_float_dim(
                Datasets.DATA_COUNTRY_CATEG_BINARY_REWARD),
        )

        pre_serialized_predictor = BanditPredictor(
            feature_config=Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
            float_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["float_feature_order"],
            id_feature_order=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["id_feature_order"],
            id_feature_str_to_int_map=Datasets.
            DATA_COUNTRY_CATEG_BINARY_REWARD["id_feature_str_to_int_map"],
            transforms=Datasets.DATA_COUNTRY_CATEG_BINARY_REWARD["transforms"],
            imputers=Datasets.DATA_COUNTRY_CATEG_BINARY_REWARD["imputers"],
            model=pytorch_net,
            model_type=self.model_type,
            reward_type=reward_type,
            model_spec=model_spec,
        )

        skorch_net = model_trainers.fit_custom_pytorch_module_w_skorch(
            reward_type=reward_type,
            model=pre_serialized_predictor.model,
            X=X_COUNTRY_CATEG_BINARY_REWARD["X_train"],
            y=X_COUNTRY_CATEG_BINARY_REWARD["y_train"],
            hyperparams=self.model_params,
        )

        pre_serialized_predictor.config_to_file(self.tmp_config_path)
        pre_serialized_predictor.model_to_file(self.tmp_net_path)

        post_serialized_predictor = BanditPredictor.predictor_from_file(
            self.tmp_config_path, self.tmp_net_path)

        pre_pred = pre_serialized_predictor.predict(
            json.loads(test_input.context))
        post_pred = post_serialized_predictor.predict(
            json.loads(test_input.context))

        assert np.allclose(pre_pred["scores"], post_pred["scores"], self.tol)
        assert pre_pred["ids"] == post_pred["ids"]

        # add a test case for missing features in provided context
        pre_pred_missing_feature = pre_serialized_predictor.predict({})
        post_pred_missing_feature = post_serialized_predictor.predict({})

        assert np.allclose(
            pre_pred_missing_feature["scores"],
            post_pred_missing_feature["scores"],
            self.tol,
        )
        assert pre_pred_missing_feature["ids"] == post_pred_missing_feature[
            "ids"]

        # add a test case for garbage feature keys provided in context
        pre_pred_garbage_feature = pre_serialized_predictor.predict(
            {"blah": 42})
        post_pred_garbage_feature = post_serialized_predictor.predict(
            {"blah": 42})

        assert np.allclose(
            pre_pred_garbage_feature["scores"],
            post_pred_garbage_feature["scores"],
            self.tol,
        )
        assert pre_pred_garbage_feature["ids"] == post_pred_garbage_feature[
            "ids"]
Exemplo n.º 4
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class Datasets:
    TEST_DIR = os.path.dirname(os.path.abspath(__file__))
    TEST_DATASET_DIR = "datasets"

    # continuous reward
    TEST_DATASET_FILENAME = "height_dataset.csv"
    DATASET_PATH = os.path.join(TEST_DIR, TEST_DATASET_DIR,
                                TEST_DATASET_FILENAME)

    _raw_data = pd.read_csv(DATASET_PATH)
    _offset = int(len(_raw_data) * Params.ML_CONFIG["train_percent"])

    # dataset for country as categorical variable
    DATA_COUNTRY_CATEG = preprocessor.preprocess_data(
        _raw_data,
        Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
        Params.ML_CONFIG["reward_type"],
    )
    _X, _y = preprocessor.data_to_pytorch(DATA_COUNTRY_CATEG)
    X_COUNTRY_CATEG = {
        "X_train": {
            "X_float": _X["X_float"][:_offset]
        },
        "y_train": _y[:_offset],
        "X_test": {
            "X_float": _X["X_float"][_offset:]
        },
        "y_test": _y[_offset:],
    }

    # dataset for country as ID list variable
    DATA_COUNTRY_ID_LIST = preprocessor.preprocess_data(
        _raw_data,
        Params.FEATURE_CONFIG_COUNTRY_AS_ID_LIST,
        Params.ML_CONFIG["reward_type"],
    )
    _X, _y = preprocessor.data_to_pytorch(DATA_COUNTRY_ID_LIST)
    X_COUNTRY_ID_LIST = {
        "X_train": {
            "X_float": _X["X_float"][:_offset],
            "X_id_list": _X["X_id_list"][:_offset],
            "X_id_list_idxs": _X["X_id_list_idxs"][:_offset],
        },
        "y_train": _y[:_offset],
        "X_test": {
            "X_float": _X["X_float"][_offset:],
            "X_id_list": _X["X_id_list"][_offset:],
            "X_id_list_idxs": _X["X_id_list_idxs"][_offset:],
        },
        "y_test": _y[_offset:],
    }

    # dataset for country as dense ID list variable
    DATA_COUNTRY_DENSE_ID_LIST = preprocessor.preprocess_data(
        _raw_data,
        Params.FEATURE_CONFIG_COUNTRY_AS_DENSE_ID_LIST,
        Params.ML_CONFIG["reward_type"],
    )
    _X, _y = preprocessor.data_to_pytorch(DATA_COUNTRY_DENSE_ID_LIST)
    X_COUNTRY_DENSE_ID_LIST = {
        "X_train": {
            "X_float": _X["X_float"][:_offset]
        },
        "y_train": _y[:_offset],
        "X_test": {
            "X_float": _X["X_float"][_offset:]
        },
        "y_test": _y[_offset:],
    }

    # dataset for country as ID list AND decision as ID list variables
    DATA_COUNTRY_AND_DECISION_ID_LIST = preprocessor.preprocess_data(
        _raw_data,
        Params.FEATURE_CONFIG_COUNTRY_AND_DECISION_AS_ID_LIST,
        Params.ML_CONFIG["reward_type"],
    )
    _X, _y = preprocessor.data_to_pytorch(DATA_COUNTRY_AND_DECISION_ID_LIST)
    X_COUNTRY_AND_DECISION_ID_LIST = {
        "X_train": {
            "X_float": _X["X_float"][:_offset],
            "X_id_list": _X["X_id_list"][:_offset],
            "X_id_list_idxs": _X["X_id_list_idxs"][:_offset],
        },
        "y_train": _y[:_offset],
        "X_test": {
            "X_float": _X["X_float"][_offset:],
            "X_id_list": _X["X_id_list"][_offset:],
            "X_id_list_idxs": _X["X_id_list_idxs"][_offset:],
        },
        "y_test": _y[_offset:],
    }

    # binary reward
    TEST_BINARY_REWARD_DATASET_FILENAME = "height_dataset_binary.csv"
    BINARY_REWARD_DATASET_PATH = os.path.join(
        TEST_DIR, TEST_DATASET_DIR, TEST_BINARY_REWARD_DATASET_FILENAME)

    _raw_data_binary_reward = pd.read_csv(BINARY_REWARD_DATASET_PATH)
    _offset_binary_reward = int(
        len(_raw_data_binary_reward) * Params.ML_CONFIG["train_percent"])

    # dataset for country as categorical variable & binary reward
    DATA_COUNTRY_CATEG_BINARY_REWARD = preprocessor.preprocess_data(
        _raw_data_binary_reward,
        Params.FEATURE_CONFIG_COUNTRY_AS_CATEGORICAL,
        "binary",
    )
    _X_binary_reward, _y_binary_reward = preprocessor.data_to_pytorch(
        DATA_COUNTRY_CATEG_BINARY_REWARD)
    X_COUNTRY_CATEG_BINARY_REWARD = {
        "X_train": {
            "X_float": _X_binary_reward["X_float"][:_offset_binary_reward]
        },
        "y_train": _y_binary_reward[:_offset_binary_reward],
        "X_test": {
            "X_float": _X_binary_reward["X_float"][_offset_binary_reward:]
        },
        "y_test": _y_binary_reward[_offset_binary_reward:],
    }