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- # coding=utf-8
- # Copyright 2022 The HuggingFace Team and Microsoft Research AI4Science 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.
- """BioGPT model configuration"""
- from ...configuration_utils import PretrainedConfig
- from ...utils import logging
- logger = logging.get_logger(__name__)
- class BioGptConfig(PretrainedConfig):
- r"""
- This is the configuration class to store the configuration of a [`BioGptModel`]. It is used to instantiate an
- BioGPT 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 BioGPT
- [microsoft/biogpt](https://huggingface.co/microsoft/biogpt) 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 42384):
- Vocabulary size of the BioGPT model. Defines the number of different tokens that can be represented by the
- `inputs_ids` passed when calling [`BioGptModel`].
- hidden_size (`int`, *optional*, defaults to 1024):
- Dimension of the encoder layers and the pooler layer.
- num_hidden_layers (`int`, *optional*, defaults to 24):
- Number of hidden layers in the Transformer encoder.
- num_attention_heads (`int`, *optional*, defaults to 16):
- Number of attention heads for each attention layer in the Transformer encoder.
- intermediate_size (`int`, *optional*, defaults to 4096):
- Dimension of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
- hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
- The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`,
- `"relu"`, `"selu"` and `"gelu_new"` are supported.
- hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
- The dropout probability for all fully connected layers in the embeddings, encoder, and pooler.
- attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
- The dropout ratio for the attention probabilities.
- max_position_embeddings (`int`, *optional*, defaults to 1024):
- The maximum sequence length that this model might ever be used with. Typically set this to something large
- just in case (e.g., 512 or 1024 or 2048).
- initializer_range (`float`, *optional*, defaults to 0.02):
- The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
- layer_norm_eps (`float`, *optional*, defaults to 1e-12):
- The epsilon used by the layer normalization layers.
- scale_embedding (`bool`, *optional*, defaults to `True`):
- Scale embeddings by diving by sqrt(d_model).
- use_cache (`bool`, *optional*, defaults to `True`):
- Whether or not the model should return the last key/values attentions (not used by all models). Only
- relevant if `config.is_decoder=True`.
- layerdrop (`float`, *optional*, defaults to 0.0):
- Please refer to the paper about LayerDrop: https://huggingface.co/papers/1909.11556 for further details
- activation_dropout (`float`, *optional*, defaults to 0.0):
- The dropout ratio for activations inside the fully connected layer.
- pad_token_id (`int`, *optional*, defaults to 1):
- Padding token id.
- bos_token_id (`int`, *optional*, defaults to 0):
- Beginning of stream token id.
- eos_token_id (`int`, *optional*, defaults to 2):
- End of stream token id.
- Example:
- ```python
- >>> from transformers import BioGptModel, BioGptConfig
- >>> # Initializing a BioGPT microsoft/biogpt style configuration
- >>> configuration = BioGptConfig()
- >>> # Initializing a model from the microsoft/biogpt style configuration
- >>> model = BioGptModel(configuration)
- >>> # Accessing the model configuration
- >>> configuration = model.config
- ```"""
- model_type = "biogpt"
- def __init__(
- self,
- vocab_size=42384,
- hidden_size=1024,
- num_hidden_layers=24,
- num_attention_heads=16,
- intermediate_size=4096,
- hidden_act="gelu",
- hidden_dropout_prob=0.1,
- attention_probs_dropout_prob=0.1,
- max_position_embeddings=1024,
- initializer_range=0.02,
- layer_norm_eps=1e-12,
- scale_embedding=True,
- use_cache=True,
- layerdrop=0.0,
- activation_dropout=0.0,
- pad_token_id=1,
- bos_token_id=0,
- eos_token_id=2,
- **kwargs,
- ):
- self.vocab_size = vocab_size
- self.max_position_embeddings = max_position_embeddings
- 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.initializer_range = initializer_range
- self.layer_norm_eps = layer_norm_eps
- self.scale_embedding = scale_embedding
- self.use_cache = use_cache
- self.layerdrop = layerdrop
- self.activation_dropout = activation_dropout
- super().__init__(pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs)
- __all__ = ["BioGptConfig"]
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