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configuration_markuplm.py
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configuration_markuplm.py
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# coding=utf-8
# Copyright 2021, The Microsoft Research Asia MarkupLM Team authors
#
# 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.
""" MarkupLM model configuration"""
from ...configuration_utils import PretrainedConfig
from ...utils import logging
logger = logging.get_logger(__name__)
class MarkupLMConfig(PretrainedConfig):
r"""
This is the configuration class to store the configuration of a [`MarkupLMModel`]. It is used to instantiate a
MarkupLM 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 MarkupLM
[microsoft/markuplm-base](https://huggingface.co/microsoft/markuplm-base) architecture.
Configuration objects inherit from [`BertConfig`] and can be used to control the model outputs. Read the
documentation from [`BertConfig`] for more information.
Args:
vocab_size (`int`, *optional*, defaults to 30522):
Vocabulary size of the MarkupLM model. Defines the different tokens that can be represented by the
*inputs_ids* passed to the forward method of [`MarkupLMModel`].
hidden_size (`int`, *optional*, defaults to 768):
Dimensionality of the encoder layers and the 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 "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"`, `"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 into [`MarkupLMModel`].
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.
max_tree_id_unit_embeddings (`int`, *optional*, defaults to 1024):
The maximum value that the tree id unit embedding might ever use. Typically set this to something large
just in case (e.g., 1024).
max_xpath_tag_unit_embeddings (`int`, *optional*, defaults to 256):
The maximum value that the xpath tag unit embedding might ever use. Typically set this to something large
just in case (e.g., 256).
max_xpath_subs_unit_embeddings (`int`, *optional*, defaults to 1024):
The maximum value that the xpath subscript unit embedding might ever use. Typically set this to something
large just in case (e.g., 1024).
tag_pad_id (`int`, *optional*, defaults to 216):
The id of the padding token in the xpath tags.
subs_pad_id (`int`, *optional*, defaults to 1001):
The id of the padding token in the xpath subscripts.
xpath_tag_unit_hidden_size (`int`, *optional*, defaults to 32):
The hidden size of each tree id unit. One complete tree index will have
(50*xpath_tag_unit_hidden_size)-dim.
max_depth (`int`, *optional*, defaults to 50):
The maximum depth in xpath.
Examples:
```python
>>> from transformers import MarkupLMModel, MarkupLMConfig
>>> # Initializing a MarkupLM microsoft/markuplm-base style configuration
>>> configuration = MarkupLMConfig()
>>> # Initializing a model from the microsoft/markuplm-base style configuration
>>> model = MarkupLMModel(configuration)
>>> # Accessing the model configuration
>>> configuration = model.config
```"""
model_type = "markuplm"
def __init__(
self,
vocab_size=30522,
hidden_size=768,
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,
pad_token_id=0,
bos_token_id=0,
eos_token_id=2,
max_xpath_tag_unit_embeddings=256,
max_xpath_subs_unit_embeddings=1024,
tag_pad_id=216,
subs_pad_id=1001,
xpath_unit_hidden_size=32,
max_depth=50,
position_embedding_type="absolute",
use_cache=True,
classifier_dropout=None,
**kwargs,
):
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.hidden_size = hidden_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.position_embedding_type = position_embedding_type
self.use_cache = use_cache
self.classifier_dropout = classifier_dropout
# additional properties
self.max_depth = max_depth
self.max_xpath_tag_unit_embeddings = max_xpath_tag_unit_embeddings
self.max_xpath_subs_unit_embeddings = max_xpath_subs_unit_embeddings
self.tag_pad_id = tag_pad_id
self.subs_pad_id = subs_pad_id
self.xpath_unit_hidden_size = xpath_unit_hidden_size