criteo.py 文件源码

def make_input_schema(mode=tf.contrib.learn.ModeKeys.TRAIN):
  """Input schema definition.

  Args:
    mode: tf.contrib.learn.ModeKeys specifying if the schema is being used for
      train/eval or prediction.
  Returns:
    A `Schema` object.
  """
  result = ({} if mode == tf.contrib.learn.ModeKeys.INFER
            else {'clicked': tf.FixedLenFeature(shape=[], dtype=tf.int64)})
  for name in INTEGER_COLUMN_NAMES:
    result[name] = tf.FixedLenFeature(
        shape=[], dtype=tf.int64, default_value=-1)
  for name in CATEGORICAL_COLUMN_NAMES:
    result[name] = tf.FixedLenFeature(shape=[], dtype=tf.string,
                                      default_value='')

  return dataset_schema.from_feature_spec(result)