feature_column.py 文件源码

def insert_transformed_feature(self, columns_to_tensors):
    """Handles sparse column to id conversion."""
    input_tensor = self._get_input_sparse_tensor(columns_to_tensors)

    sparse_id_values = math_ops.mod(input_tensor.values, self.bucket_size,
                                    name="mod")
    columns_to_tensors[self] = sparse_tensor_py.SparseTensor(
        input_tensor.indices, sparse_id_values, input_tensor.dense_shape)