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configuration_ernie_m.py
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configuration_ernie_m.py
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# coding=utf-8
# Copyright 2023 Xuan Ouyang, Shuohuan Wang, Chao Pang, Yu Sun, Hao Tian, Hua Wu, Haifeng Wang and The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
""" ErnieM model configuration"""
# Adapted from original paddlenlp repository.(https://github.com/PaddlePaddle/PaddleNLP/blob/develop/paddlenlp/transformers/ernie_m/configuration.py)
from __future__ import annotations
from typing import Dict
from ...configuration_utils import PretrainedConfig
ERNIE_M_PRETRAINED_CONFIG_ARCHIVE_MAP = {
"susnato/ernie-m-base_pytorch": "https://huggingface.co/susnato/ernie-m-base_pytorch/blob/main/config.json",
"susnato/ernie-m-large_pytorch": "https://huggingface.co/susnato/ernie-m-large_pytorch/blob/main/config.json",
}
class ErnieMConfig(PretrainedConfig):
r"""
This is the configuration class to store the configuration of a [`ErnieMModel`]. It is used to instantiate a
Ernie-M model according to the specified arguments, defining the model architecture. Instantiating a configuration
with the defaults will yield a similar configuration to that of the `Ernie-M`
[susnato/ernie-m-base_pytorch](https://huggingface.co/susnato/ernie-m-base_pytorch) architecture.
Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
documentation from [`PretrainedConfig`] for more information.
Args:
vocab_size (`int`, *optional*, defaults to 250002):
Vocabulary size of `inputs_ids` in [`ErnieMModel`]. Also is the vocab size of token embedding matrix.
Defines the number of different tokens that can be represented by the `inputs_ids` passed when calling
[`ErnieMModel`].
hidden_size (`int`, *optional*, defaults to 768):
Dimensionality of the embedding layer, encoder layers and pooler layer.
num_hidden_layers (`int`, *optional*, defaults to 12):
Number of hidden layers in the Transformer encoder.
num_attention_heads (`int`, *optional*, defaults to 12):
Number of attention heads for each attention layer in the Transformer encoder.
intermediate_size (`int`, *optional*, defaults to 3072):
Dimensionality of the feed-forward (ff) layer in the encoder. Input tensors to feed-forward layers are
firstly projected from hidden_size to intermediate_size, and then projected back to hidden_size. Typically
intermediate_size is larger than hidden_size.
hidden_act (`str`, *optional*, defaults to `"gelu"`):
The non-linear activation function in the feed-forward layer. `"gelu"`, `"relu"` and any other torch
supported activation functions are supported.
hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
The dropout probability for all fully connected layers in the embeddings and encoder.
attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
The dropout probability used in `MultiHeadAttention` in all encoder layers to drop some attention target.
max_position_embeddings (`int`, *optional*, defaults to 514):
The maximum value of the dimensionality of position encoding, which dictates the maximum supported length
of an input sequence.
initializer_range (`float`, *optional*, defaults to 0.02):
The standard deviation of the normal initializer for initializing all weight matrices. The index of padding
token in the token vocabulary.
pad_token_id (`int`, *optional*, defaults to 1):
Padding token id.
layer_norm_eps (`float`, *optional*, defaults to 1e-05):
The epsilon used by the layer normalization layers.
classifier_dropout (`float`, *optional*):
The dropout ratio for the classification head.
act_dropout (`float`, *optional*, defaults to 0.0):
This dropout probability is used in `ErnieMEncoderLayer` after activation.
A normal_initializer initializes weight matrices as normal distributions. See
`ErnieMPretrainedModel._init_weights()` for how weights are initialized in `ErnieMModel`.
"""
model_type = "ernie_m"
attribute_map: Dict[str, str] = {"dropout": "classifier_dropout", "num_classes": "num_labels"}
def __init__(
self,
vocab_size: int = 250002,
hidden_size: int = 768,
num_hidden_layers: int = 12,
num_attention_heads: int = 12,
intermediate_size: int = 3072,
hidden_act: str = "gelu",
hidden_dropout_prob: float = 0.1,
attention_probs_dropout_prob: float = 0.1,
max_position_embeddings: int = 514,
initializer_range: float = 0.02,
pad_token_id: int = 1,
layer_norm_eps: float = 1e-05,
classifier_dropout=None,
act_dropout=0.0,
**kwargs,
):
super().__init__(pad_token_id=pad_token_id, **kwargs)
self.vocab_size = vocab_size
self.hidden_size = hidden_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.intermediate_size = intermediate_size
self.hidden_act = hidden_act
self.hidden_dropout_prob = hidden_dropout_prob
self.attention_probs_dropout_prob = attention_probs_dropout_prob
self.max_position_embeddings = max_position_embeddings
self.initializer_range = initializer_range
self.layer_norm_eps = layer_norm_eps
self.classifier_dropout = classifier_dropout
self.act_dropout = act_dropout