Python tensorflow_transform.bucketize方法代碼示例

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
    out = dict()

    for key in taxi.DENSE_FLOAT_FEATURE_KEYS:
        # Preserve this feature as a dense float, setting nan's to the mean.
        out[taxi.transformed_name(key)] = tft.scale_to_z_score(
            taxi.fill_in_missing(inputs[key]))

    for key in taxi.VOCAB_FEATURE_KEYS:
        # Build a vocabulary for this feature.
        out[taxi.transformed_name(key)] = tft.compute_and_apply_vocabulary(
            taxi.fill_in_missing(inputs[key]), top_k=10, num_oov_buckets=10)

    for key in taxi.BUCKET_FEATURE_KEYS:
        out[taxi.transformed_name(key)] = tft.bucketize(taxi.fill_in_missing(inputs[key]),
                                                        num_buckets=10)

    for key in taxi.CATEGORICAL_FEATURE_KEYS:
        out[taxi.transformed_name(key)] = taxi.fill_in_missing(inputs[key])

    # Was this passenger a big tipper?
    taxi_fare = taxi.fill_in_missing(inputs[taxi.FARE_KEY])
    tips = taxi.fill_in_missing(inputs[taxi.LABEL_KEY])
    out[taxi.transformed_name(taxi.LABEL_KEY)] = tf.where(
        tf.is_nan(taxi_fare),
        tf.cast(tf.zeros_like(taxi_fare), tf.int64),
        # Test if the tip was > 20% of the fare.
        tf.cast(tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))), tf.int64)
    )

    return out 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocess(inputs):
    """tf.transform's callback function for preprocessing inputs.
    Args:
      inputs: map from feature keys to raw not-yet-transformed features.
    Returns:
      Map from string feature key to transformed feature operations.
    """
    outputs = {}
    for key in DENSE_FLOAT_FEATURE_KEYS:
        # Preserve this feature as a dense float, setting nan's to the mean.
        outputs[key] = transform.scale_to_z_score(inputs[key])

    for key in VOCAB_FEATURE_KEYS:
        # Build a vocabulary for this feature.
        if inputs[key].dtype == tf.string:
            vocab_tensor = inputs[key]
        else:
            vocab_tensor = tf.as_string(inputs[key])
        outputs[key] = transform.string_to_int(
            vocab_tensor, vocab_filename='vocab_' + key,
            top_k=VOCAB_SIZE, num_oov_buckets=OOV_SIZE)

    for key in BUCKET_FEATURE_KEYS:
        outputs[key] = transform.bucketize(inputs[key], FEATURE_BUCKET_COUNT)

    for key in CATEGORICAL_FEATURE_KEYS:
        outputs[key] = tf.to_int64(inputs[key])

    taxi_fare = inputs[FARE_KEY]
    taxi_tip = inputs[LABEL_KEY]
    # Test if the tip was > 20% of the fare.
    tip_threshold = tf.multiply(taxi_fare, tf.constant(0.2))
    outputs[LABEL_KEY] = tf.logical_and(
        tf.logical_not(tf.is_nan(taxi_fare)),
        tf.greater(taxi_tip, tip_threshold))

    return outputs 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in _DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[_transformed_name(key)] = tft.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in _VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[_transformed_name(key)] = tft.compute_and_apply_vocabulary(
        _fill_in_missing(inputs[key]),
        top_k=_VOCAB_SIZE,
        num_oov_buckets=_OOV_SIZE)

  for key in _BUCKET_FEATURE_KEYS:
    outputs[_transformed_name(key)] = tft.bucketize(
        _fill_in_missing(inputs[key]), _FEATURE_BUCKET_COUNT,
        always_return_num_quantiles=False)

  for key in _CATEGORICAL_FEATURE_KEYS:
    outputs[_transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[_FARE_KEY])
  tips = _fill_in_missing(inputs[_LABEL_KEY])
  outputs[_transformed_name(_LABEL_KEY)] = tf.where(
      tf.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 20% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))), tf.int64))

  return outputs 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in _DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[_transformed_name(key)] = tft.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in _VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[_transformed_name(key)] = tft.compute_and_apply_vocabulary(
        _fill_in_missing(inputs[key]),
        top_k=_VOCAB_SIZE,
        num_oov_buckets=_OOV_SIZE)

  for key in _BUCKET_FEATURE_KEYS:
    outputs[_transformed_name(key)] = tft.bucketize(
        _fill_in_missing(inputs[key]), _FEATURE_BUCKET_COUNT)

  for key in _CATEGORICAL_FEATURE_KEYS:
    outputs[_transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[_FARE_KEY])
  tips = _fill_in_missing(inputs[_LABEL_KEY])
  outputs[_transformed_name(_LABEL_KEY)] = tf.compat.v1.where(
      tf.math.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 20% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))), tf.int64))

  return outputs 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in _DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[_transformed_name(key)] = tft.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in _VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[_transformed_name(key)] = tft.compute_and_apply_vocabulary(
        _fill_in_missing(inputs[key]),
        top_k=_VOCAB_SIZE,
        num_oov_buckets=_OOV_SIZE)

  for key in _BUCKET_FEATURE_KEYS:
    outputs[_transformed_name(key)] = tft.bucketize(
        _fill_in_missing(inputs[key]),
        _FEATURE_BUCKET_COUNT)

  for key in _CATEGORICAL_FEATURE_KEYS:
    outputs[_transformed_name(key)] = _fill_in_missing(inputs[key])

  # TODO(b/157064428): Support label transformation for Keras.
  # Do not apply label transformation as it will result in wrong evaluation.
  outputs[_transformed_name(_LABEL_KEY)] = inputs[_LABEL_KEY]

  return outputs


# TFX Trainer will call this function. 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in _DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[_transformed_name(key)] = tft.scale_to_z_score(
        _fill_in_missing(_identity(inputs[key])))

  for key in _VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[_transformed_name(key)] = tft.compute_and_apply_vocabulary(
        _fill_in_missing(inputs[key]),
        top_k=_VOCAB_SIZE,
        num_oov_buckets=_OOV_SIZE)

  for key in _BUCKET_FEATURE_KEYS:
    outputs[_transformed_name(key)] = tft.bucketize(
        _fill_in_missing(inputs[key]),
        _FEATURE_BUCKET_COUNT)

  for key in _CATEGORICAL_FEATURE_KEYS:
    outputs[_transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[_FARE_KEY])
  tips = _fill_in_missing(inputs[_LABEL_KEY])
  outputs[_transformed_name(_LABEL_KEY)] = tf.compat.v1.where(
      tf.math.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 20% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))), tf.int64))

  return outputs 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def testSavedModelWithAnnotations(self):
    """Test serialization/deserialization as a saved model with annotations."""
    def preprocessing_fn(inputs):
      # Bucketization applies annotations to the output schema
      return {
          'x_bucketized': tft.bucketize(inputs['x'], num_buckets=4),
          'y_vocab': tft.compute_and_apply_vocabulary(inputs['y']),
      }

    input_data = [{
        'x': 1,
        'y': 'foo',
    }, {
        'x': 2,
        'y': 'bar',
    }, {
        'x': 3,
        'y': 'foo',
    }, {
        'x': 4,
        'y': 'foo',
    }]
    input_metadata = tft_unit.metadata_from_feature_spec({
        'x': tf.io.FixedLenFeature([], tf.float32),
        'y': tf.io.FixedLenFeature([], tf.string),
    })
    temp_dir = self.get_temp_dir()
    # Force a batch size of 1 to ensure that occurences are correctly aggregated
    # across batches when computing the total vocabulary size.
    with beam_impl.Context(temp_dir=temp_dir, desired_batch_size=1):
      input_data, input_metadata = self._MaybeConvertInputsToTFXIO(
          input_data, input_metadata)
      transform_fn = ((input_data, input_metadata)
                      | beam_impl.AnalyzeDataset(preprocessing_fn))
      #  Write transform_fn to serialize annotation collections to SavedModel
      _ = transform_fn | transform_fn_io.WriteTransformFn(temp_dir)

    # Ensure that the annotations survive the round trip to SavedModel.
    tf_transform_output = tft.TFTransformOutput(temp_dir)
    savedmodel_dir = tf_transform_output.transform_savedmodel_dir
    schema = beam_impl._infer_metadata_from_saved_model(savedmodel_dir)._schema
    self.assertLen(schema.feature, 2)
    for feature in schema.feature:
      if feature.name == 'x_bucketized':
        self.assertLen(feature.annotation.extra_metadata, 1)
        for annotation in feature.annotation.extra_metadata:
          message = annotations_pb2.BucketBoundaries()
          annotation.Unpack(message)
          self.assertAllClose(list(message.boundaries), [2, 3, 4])
      elif feature.name == 'y_vocab':
        self.assertLen(feature.annotation.extra_metadata, 0)
      else:
        raise ValueError('Unexpected feature with metadata: {}'.format(
            feature.name))
    # Vocabularies create a top-level schema annotation for each vocab file.
    self.assertLen(schema.annotation.extra_metadata, 1)
    message = annotations_pb2.VocabularyMetadata()
    annotation = schema.annotation.extra_metadata[0]
    annotation.Unpack(message)
    self.assertEqual(message.unfiltered_vocabulary_size, 2) 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in _DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[_transformed_name(key)] = tft.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in _VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[_transformed_name(key)] = tft.compute_and_apply_vocabulary(
        _fill_in_missing(inputs[key]),
        top_k=_VOCAB_SIZE,
        num_oov_buckets=_OOV_SIZE)

  for key in _BUCKET_FEATURE_KEYS:
    outputs[_transformed_name(key)] = tft.bucketize(
        _fill_in_missing(inputs[key]),
        _FEATURE_BUCKET_COUNT)

  for key in _CATEGORICAL_FEATURE_KEYS:
    outputs[_transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[_FARE_KEY])
  tips = _fill_in_missing(inputs[_LABEL_KEY])
  outputs[_transformed_name(_LABEL_KEY)] = tf.where(
      tf.math.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 20% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))), tf.int64))

  return outputs


# TFX Trainer will call this function. 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in taxi.DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[taxi.transformed_name(key)] = transform.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in taxi.VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[
        taxi.transformed_name(key)] = transform.compute_and_apply_vocabulary(
            _fill_in_missing(inputs[key]),
            top_k=taxi.VOCAB_SIZE,
            num_oov_buckets=taxi.OOV_SIZE)

  for key in taxi.BUCKET_FEATURE_KEYS:
    outputs[taxi.transformed_name(key)] = transform.bucketize(
        _fill_in_missing(inputs[key]), taxi.FEATURE_BUCKET_COUNT)

  for key in taxi.CATEGORICAL_FEATURE_KEYS:
    outputs[taxi.transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[taxi.FARE_KEY])
  tips = _fill_in_missing(inputs[taxi.LABEL_KEY])
  outputs[taxi.transformed_name(taxi.LABEL_KEY)] = tf.where(
      tf.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 20% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.2))),
          tf.int64))

  return outputs 

# 需要導入模塊: import tensorflow_transform [as 別名]
# 或者: from tensorflow_transform import bucketize [as 別名]
def preprocessing_fn(inputs):
  """tf.transform's callback function for preprocessing inputs.

  Args:
    inputs: map from feature keys to raw not-yet-transformed features.

  Returns:
    Map from string feature key to transformed feature operations.
  """
  outputs = {}
  for key in taxi.DENSE_FLOAT_FEATURE_KEYS:
    # Preserve this feature as a dense float, setting nan's to the mean.
    outputs[taxi.transformed_name(key)] = transform.scale_to_z_score(
        _fill_in_missing(inputs[key]))

  for key in taxi.VOCAB_FEATURE_KEYS:
    # Build a vocabulary for this feature.
    outputs[
        taxi.transformed_name(key)] = transform.compute_and_apply_vocabulary(
            _fill_in_missing(inputs[key]),
            top_k=taxi.VOCAB_SIZE,
            num_oov_buckets=taxi.OOV_SIZE)

  for key in taxi.BUCKET_FEATURE_KEYS:
    outputs[taxi.transformed_name(key)] = transform.bucketize(
        _fill_in_missing(inputs[key]), taxi.FEATURE_BUCKET_COUNT)

  for key in taxi.CATEGORICAL_FEATURE_KEYS:
    outputs[taxi.transformed_name(key)] = _fill_in_missing(inputs[key])

  # Was this passenger a big tipper?
  taxi_fare = _fill_in_missing(inputs[taxi.FARE_KEY])
  tips = _fill_in_missing(inputs[taxi.LABEL_KEY])
  outputs[taxi.transformed_name(taxi.LABEL_KEY)] = tf.where(
      tf.is_nan(taxi_fare),
      tf.cast(tf.zeros_like(taxi_fare), tf.int64),
      # Test if the tip was > 5% of the fare.
      tf.cast(
          tf.greater(tips, tf.multiply(taxi_fare, tf.constant(0.05))),
          tf.int64))

  return outputs