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How to use _load_transformers method in lisa

Best Python code snippet using lisa_python

preprocessing.py

Source:preprocessing.py

...20        cm = ConfigManager()21        if mode == 'pred':22            expected_keys = ['transformers_path']23            self.config = cm.load_config(config_path, expected_keys)24            self.transformers = self._load_transformers(self.config)25        else:26            expected_keys = []27            self.config = cm.load_config(config_path, expected_keys)28            self.transformers = {29                'fillna_vals': {},30                'onehot_encoders': {},31                'count_corresp_tables': {},32                'minmax_scaler': None33            }34    def _load_transformers(self, config):35        """ä¿åãããã°ããtransformers è¾æ¸ãåå¾36        """37        prefix = '/opt/ml/model'38        filename = Path(config['transformers_path']).name39        trans_path_for_pred = Path(prefix).joinpath(filename)40        transformers = joblib.load(trans_path_for_pred)41        expected_keys = [42            'fillna_vals', 'onehot_encoders', 'count_corresp_tables',43            'minmax_scaler'44        ]45        Utils.validate_dict(transformers, expected_keys)46        return transformers47    def save_transformers(self,48                          dst_dir='./.models',...

transformer.py

Source:transformer.py

...117                    f"'{item}'"118                )119            _sort_dfs(transformers, dependent, visited, sorted_transformers)120    sorted_transformers.append(transformer)121def _load_transformers(122    runbook_builder: RunbookBuilder,123    variables: Optional[Dict[str, VariableEntry]] = None,124) -> Dict[str, schema.Transformer]:125    transformers_data = runbook_builder.partial_resolve(126        partial_name=constants.TRANSFORMER, variables=variables127    )128    transformers = schema.load_by_type_many(schema.Transformer, transformers_data)129    return {x.name: x for x in transformers}130def _run_transformers(131    runbook_builder: RunbookBuilder,132    phase: str = constants.TRANSFORMER_PHASE_INIT,133) -> Dict[str, VariableEntry]:134    # resolve variables135    transformers_dict = _load_transformers(runbook_builder=runbook_builder)136    transformers_runbook = [x for x in transformers_dict.values()]137    # resort the runbooks, and it's used in real run138    transformers_runbook = _sort(transformers_runbook)139    copied_variables: Dict[str, VariableEntry] = dict()140    for value in runbook_builder.variables.values():141        copied_variables[value.name] = value.copy()142    factory = subclasses.Factory[Transformer](Transformer)143    for runbook in transformers_runbook:144        # load the original runbook to solve variables again.145        raw_transformers = _load_transformers(146            runbook_builder=runbook_builder, variables=copied_variables147        )148        runbook = raw_transformers[runbook.name]149        # if phase is empty, pick up all of them.150        if not runbook.enabled or (phase and runbook.phase != phase):151            continue152        derived_builder = runbook_builder.derive(copied_variables)153        transformer = factory.create_by_runbook(154            runbook=runbook, runbook_builder=derived_builder155        )156        transformer.initialize()157        values = transformer.run()158        merge_variables(copied_variables, values)159    return copied_variables...

model.py

Source:model.py

...9class IceGRU:10    def __init__(self, model_path: Path, device: str = "cpu") -> None:11        self._model_path = model_path12        self.device = device13        self.transformers = self._load_transformers()14        self.model = self._load_model(self._model_path)15        self._n_seqs = len(self.__seq_vars)16    def predict(self, batch: List[Dict[str, np.ndarray]]) -> List[Dict[str, float]]:17        """Calculates predictions on a batch of data.18        The batch of data must be a list of dictionaries, where each dictionary contains the key-value pairs 19            - dom_x: a numpy-array of the x-coordinates of the event20            - dom_y: a numpy-array of the y-coordinates of the event21            - dom_z: a numpy-array of the z-coordinates of the event22            - dom_time: a numpy-array of the time-coordinates of the event23            - dom_charge: a numpy-array of the charge-values of the event24            - dom_atwd: a numpy-array with digitizer indicators (integers)25            - dom_pulse_width: a numpy-array of pulse widths of the event.26        The event is expected to be time-ordered.27        28        Args:29            batch (List[Dict[str, np.ndarray]]): A batch of event as described above30        Returns:31            List[Dict[str, float]]: Predictions for events32        """33        batch_list_transformed = self._dicts_to_arrays(self._transform_batch(batch))34        batch_packed_sequence, sequence_lengths, new_order = self._pad_sequence(35            batch_list_transformed36        )37        batch_packed = (batch_packed_sequence, sequence_lengths)38        prediction_transformed = self._predict(batch_packed)39        prediction = self._array_to_dicts(40            self._inverse_transform(prediction_transformed.numpy())41        )42        prediction_reordered = [43            e[0] for e in sorted(zip(prediction, new_order), key=lambda x: x[1])44        ]45        return prediction_reordered46    def _dict_to_array(self, event):47        n_doms = len(event[self.__seq_vars[0]])48        seq_arr = np.zeros((self._n_seqs, n_doms))49        for i_var, var in enumerate(self.__seq_vars):50            seq_arr[i_var, :] = event[var]51        return seq_arr52    def _dicts_to_arrays(self, batch):53        for i_event, event in enumerate(batch):54            batch[i_event] = self._dict_to_array(event)55        return batch56    def _inverse_transform(self, pred_array):57        for i_var, var in enumerate(self.__targets):58            transformer = self.transformers.get(var)59            pred = pred_array[:, i_var]60            if transformer:61                inv_transformed_pred = transformer.inverse_transform(62                    pred.reshape(-1, 1)63                ).reshape(-1)64            pred_array[:, i_var] = inv_transformed_pred if transformer else pred65        return pred_array66    def _load_model(self, path):67        with open(Path.joinpath(path, "architecture_pars.json"), "r") as f:68            arch_pars = json.load(f)69        model = MakeModel(arch_pars)70        p = Path.joinpath(path, "model_weights.pth")71        model.load_state_dict(torch.load(p, map_location="cpu"))72        model.to(self.device)73        return model74    def _load_transformers(self):75        with open(self.__transformers_path, "rb") as f:76            transformers = pickle.load(f)77        return transformers78    def _pad_sequence(self, batch):79        indexed_batch = [(entry, i_entry) for i_entry, entry in enumerate(batch)]80        sorted_batch = sorted(indexed_batch, key=lambda x: x[0].shape[1], reverse=True)81        sequences = [torch.tensor(np.transpose(x[0])) for x in sorted_batch]82        indices = [x[1] for x in sorted_batch]83        sequence_lengths = torch.LongTensor([len(x) for x in sequences])84        sequences_padded = torch.nn.utils.rnn.pad_sequence(sequences, batch_first=True)85        return sequences_padded.float(), sequence_lengths, indices86    def _predict(self, batch):87        self.model.eval()88        with torch.no_grad():...

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