# coding=utf-8 # Copyright Studio Ousia and The HuggingFace Inc. team. # # 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. """LUKE configuration""" from ...configuration_utils import PretrainedConfig from ...utils import logging logger = logging.get_logger(__name__) class LukeConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`LukeModel`]. It is used to instantiate a LUKE 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 LUKE [studio-ousia/luke-base](https://huggingface.co/studio-ousia/luke-base) 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 50267): Vocabulary size of the LUKE model. Defines the number of different tokens that can be represented by the `inputs_ids` passed when calling [`LukeModel`]. entity_vocab_size (`int`, *optional*, defaults to 500000): Entity vocabulary size of the LUKE model. Defines the number of different entities that can be represented by the `entity_ids` passed when calling [`LukeModel`]. hidden_size (`int`, *optional*, defaults to 768): Dimensionality of the encoder layers and the pooler layer. entity_emb_size (`int`, *optional*, defaults to 256): The number of dimensions of the entity embedding. 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 "intermediate" (often named feed-forward) layer in the Transformer encoder. hidden_act (`str` or `Callable`, *optional*, defaults to `"gelu"`): The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, `"relu"`, `"silu"` 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 512): 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). type_vocab_size (`int`, *optional*, defaults to 2): The vocabulary size of the `token_type_ids` passed when calling [`LukeModel`]. 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. use_entity_aware_attention (`bool`, *optional*, defaults to `True`): Whether or not the model should use the entity-aware self-attention mechanism proposed in [LUKE: Deep Contextualized Entity Representations with Entity-aware Self-attention (Yamada et al.)](https://arxiv.org/abs/2010.01057). classifier_dropout (`float`, *optional*): The dropout ratio for the classification head. 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. Examples: ```python >>> from transformers import LukeConfig, LukeModel >>> # Initializing a LUKE configuration >>> configuration = LukeConfig() >>> # Initializing a model from the configuration >>> model = LukeModel(configuration) >>> # Accessing the model configuration >>> configuration = model.config ```""" model_type = "luke" def __init__( self, vocab_size=50267, entity_vocab_size=500000, hidden_size=768, entity_emb_size=256, num_hidden_layers=12, num_attention_heads=12, intermediate_size=3072, hidden_act="gelu", hidden_dropout_prob=0.1, attention_probs_dropout_prob=0.1, max_position_embeddings=512, type_vocab_size=2, initializer_range=0.02, layer_norm_eps=1e-12, use_entity_aware_attention=True, classifier_dropout=None, pad_token_id=1, bos_token_id=0, eos_token_id=2, **kwargs, ): """Constructs LukeConfig.""" super().__init__(pad_token_id=pad_token_id, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs) self.vocab_size = vocab_size self.entity_vocab_size = entity_vocab_size self.hidden_size = hidden_size self.entity_emb_size = entity_emb_size self.num_hidden_layers = num_hidden_layers self.num_attention_heads = num_attention_heads self.hidden_act = hidden_act self.intermediate_size = intermediate_size self.hidden_dropout_prob = hidden_dropout_prob self.attention_probs_dropout_prob = attention_probs_dropout_prob self.max_position_embeddings = max_position_embeddings self.type_vocab_size = type_vocab_size self.initializer_range = initializer_range self.layer_norm_eps = layer_norm_eps self.use_entity_aware_attention = use_entity_aware_attention self.classifier_dropout = classifier_dropout __all__ = ["LukeConfig"]