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- # coding=utf-8
- # Copyright 2023 Microsoft Research & University of Wisconsin-Madison 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.
- """VipLlava model configuration"""
- from ...configuration_utils import PretrainedConfig
- from ...utils import logging
- from ..auto import CONFIG_MAPPING, AutoConfig
- logger = logging.get_logger(__name__)
- class VipLlavaConfig(PretrainedConfig):
- r"""
- This is the configuration class to store the configuration of a [`VipLlavaForConditionalGeneration`]. It is used to instantiate an
- VipLlava 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 VipLlava-9B.
- e.g. [ybelkada/vip-llava-7b-hf](https://huggingface.co/ybelkada/vip-llava-7b-hf)
- Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
- documentation from [`PretrainedConfig`] for more information.
- Args:
- vision_config (`VipLlavaVisionConfig`, *optional*):
- Custom vision config or dict
- text_config (`Union[AutoConfig, dict]`, *optional*):
- The config object of the text backbone. Can be any of `LlamaConfig` or `MistralConfig`.
- image_token_index (`int`, *optional*, defaults to 32000):
- The image token index to encode the image prompt.
- projector_hidden_act (`str`, *optional*, defaults to `"gelu"`):
- The activation function used by the multimodal projector.
- projector_layernorm_eps (`float`, *optional*, defaults to 1e-05):
- The layer norm epsilon of the projector layernorm
- vision_feature_layers (`Union[int, list[int]]`, *optional*, defaults to `[-2, -5, -8, -11, 6]`):
- The vision feature layer, or list of layers to select the vision features from.
- image_seq_length (`int`, *optional*, defaults to 576):
- Sequence length of one image embedding.
- Example:
- ```python
- >>> from transformers import VipLlavaForConditionalGeneration, VipLlavaConfig, CLIPVisionConfig, LlamaConfig
- >>> # Initializing a CLIP-vision config
- >>> vision_config = CLIPVisionConfig()
- >>> # Initializing a Llama config
- >>> text_config = LlamaConfig()
- >>> # Initializing a VipLlava vipllava-7b style configuration
- >>> configuration = VipLlavaConfig(vision_config, text_config)
- >>> # Initializing a model from the vipllava-7b style configuration
- >>> model = VipLlavaForConditionalGeneration(configuration)
- >>> # Accessing the model configuration
- >>> configuration = model.config
- ```"""
- model_type = "vipllava"
- attribute_map = {
- "image_token_id": "image_token_index",
- }
- sub_configs = {"text_config": AutoConfig, "vision_config": AutoConfig}
- def __init__(
- self,
- vision_config=None,
- text_config=None,
- image_token_index=32000,
- projector_hidden_act="gelu",
- projector_layernorm_eps=1e-5,
- vision_feature_layers=[-2, -5, -8, -11, 6],
- image_seq_length=576,
- **kwargs,
- ):
- self.image_token_index = image_token_index
- self.projector_hidden_act = projector_hidden_act
- self.projector_layernorm_eps = projector_layernorm_eps
- self.vision_feature_layers = vision_feature_layers
- self.image_seq_length = image_seq_length
- self.vision_config = vision_config
- if isinstance(self.vision_config, dict):
- vision_config["model_type"] = vision_config.get("model_type", "clip_vision_model")
- self.vision_config = CONFIG_MAPPING[vision_config["model_type"]](**vision_config)
- elif vision_config is None:
- self.vision_config = CONFIG_MAPPING["clip_vision_model"](
- intermediate_size=4096,
- hidden_size=1024,
- patch_size=14,
- image_size=336,
- num_hidden_layers=24,
- num_attention_heads=16,
- vocab_size=32000,
- projection_dim=768,
- )
- if isinstance(text_config, dict):
- text_config["model_type"] = text_config.get("model_type", "llama")
- text_config = CONFIG_MAPPING[text_config["model_type"]](**text_config)
- elif text_config is None:
- text_config = CONFIG_MAPPING["llama"]()
- self.text_config = text_config
- super().__init__(**kwargs)
- __all__ = ["VipLlavaConfig"]
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