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class TFConvNextV2GRN(keras.layers.Layer): """GRN (Global Response Normalization) layer""" def __init__(self, config: ConvNextV2Config, dim: int, **kwargs): super().__init__(**kwargs) self.dim = dim def build(self, input_shape: tf.TensorShape = None): # PT's `nn.Parameters` must be...
class_definition
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/convnextv2/modeling_tf_convnextv2.py
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class TFConvNextV2Embeddings(keras.layers.Layer): """This class is comparable to (and inspired by) the SwinEmbeddings class found in src/transformers/models/swin/modeling_swin.py. """ def __init__(self, config: ConvNextV2Config, **kwargs): super().__init__(**kwargs) self.patch_embedding...
class_definition
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class TFConvNextV2Layer(keras.layers.Layer): """This corresponds to the `Block` class in the original implementation. There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C, H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Lin...
class_definition
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/convnextv2/modeling_tf_convnextv2.py
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class TFConvNextV2Stage(keras.layers.Layer): """ConvNextV2 stage, consisting of an optional downsampling layer + multiple residual blocks. Args: config (`ConvNextV2V2Config`): Model configuration class. in_channels (`int`): Number of input channels. out_channels ...
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/convnextv2/modeling_tf_convnextv2.py
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class TFConvNextV2Encoder(keras.layers.Layer): def __init__(self, config: ConvNextV2Config, **kwargs): super().__init__(**kwargs) self.stages = [] drop_path_rates = tf.linspace(0.0, config.drop_path_rate, sum(config.depths)) drop_path_rates = tf.split(drop_path_rates, config.depths) ...
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/convnextv2/modeling_tf_convnextv2.py
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class TFConvNextV2MainLayer(keras.layers.Layer): config_class = ConvNextV2Config def __init__(self, config: ConvNextV2Config, **kwargs): super().__init__(**kwargs) self.config = config self.embeddings = TFConvNextV2Embeddings(config, name="embeddings") self.encoder = TFConvNext...
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class TFConvNextV2PreTrainedModel(TFPreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = ConvNextV2Config base_model_prefix = "convnextv2" main_input_name = "pixel_values"
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class TFConvNextV2Model(TFConvNextV2PreTrainedModel): def __init__(self, config: ConvNextV2Config, *inputs, **kwargs): super().__init__(config, *inputs, **kwargs) self.convnextv2 = TFConvNextV2MainLayer(config, name="convnextv2") @unpack_inputs @add_start_docstrings_to_model_forward(CONVNEX...
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class TFConvNextV2ForImageClassification(TFConvNextV2PreTrainedModel, TFSequenceClassificationLoss): def __init__(self, config: ConvNextV2Config, *inputs, **kwargs): super().__init__(config, *inputs, **kwargs) self.num_labels = config.num_labels self.convnextv2 = TFConvNextV2MainLayer(confi...
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class ConvNextV2DropPath(nn.Module): """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).""" def __init__(self, drop_prob: Optional[float] = None) -> None: super().__init__() self.drop_prob = drop_prob def forward(self, hidden_states: torch.Tensor) ->...
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class ConvNextV2GRN(nn.Module): """GRN (Global Response Normalization) layer""" def __init__(self, dim: int): super().__init__() self.weight = nn.Parameter(torch.zeros(1, 1, 1, dim)) self.bias = nn.Parameter(torch.zeros(1, 1, 1, dim)) def forward(self, hidden_states: torch.FloatTen...
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class ConvNextV2LayerNorm(nn.Module): r"""LayerNorm that supports two data formats: channels_last (default) or channels_first. The ordering of the dimensions in the inputs. channels_last corresponds to inputs with shape (batch_size, height, width, channels) while channels_first corresponds to inputs with sh...
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class ConvNextV2Embeddings(nn.Module): """This class is comparable to (and inspired by) the SwinEmbeddings class found in src/transformers/models/swin/modeling_swin.py. """ def __init__(self, config): super().__init__() self.patch_embeddings = nn.Conv2d( config.num_channels,...
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class ConvNextV2Layer(nn.Module): """This corresponds to the `Block` class in the original implementation. There are two equivalent implementations: [DwConv, LayerNorm (channels_first), Conv, GELU,1x1 Conv]; all in (N, C, H, W) (2) [DwConv, Permute to (N, H, W, C), LayerNorm (channels_last), Linear, GELU, ...
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class ConvNextV2Stage(nn.Module): """ConvNeXTV2 stage, consisting of an optional downsampling layer + multiple residual blocks. Args: config ([`ConvNextV2Config`]): Model configuration class. in_channels (`int`): Number of input channels. out_channels (`int`): Number of output channels....
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class ConvNextV2Encoder(nn.Module): def __init__(self, config): super().__init__() self.stages = nn.ModuleList() drop_path_rates = [ x.tolist() for x in torch.linspace(0, config.drop_path_rate, sum(config.depths)).split(config.depths) ] prev_chs = config.hidden_si...
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class ConvNextV2PreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = ConvNextV2Config base_model_prefix = "convnextv2" main_input_name = "pixel_values" _no_split_...
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class ConvNextV2Model(ConvNextV2PreTrainedModel): def __init__(self, config): super().__init__(config) self.config = config self.embeddings = ConvNextV2Embeddings(config) self.encoder = ConvNextV2Encoder(config) # final layernorm layer self.layernorm = nn.LayerNorm(...
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class ConvNextV2ForImageClassification(ConvNextV2PreTrainedModel): def __init__(self, config): super().__init__(config) self.num_labels = config.num_labels self.convnextv2 = ConvNextV2Model(config) # Classifier head self.classifier = ( nn.Linear(config.hidden_si...
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class ConvNextV2Backbone(ConvNextV2PreTrainedModel, BackboneMixin): def __init__(self, config): super().__init__(config) super()._init_backbone(config) self.embeddings = ConvNextV2Embeddings(config) self.encoder = ConvNextV2Encoder(config) self.num_features = [config.hidden_...
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class ConvNextV2Config(BackboneConfigMixin, PretrainedConfig): r""" This is the configuration class to store the configuration of a [`ConvNextV2Model`]. It is used to instantiate an ConvNeXTV2 model according to the specified arguments, defining the model architecture. Instantiating a configuration with...
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class VitPoseConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`VitPoseForPoseEstimation`]. It is used to instantiate a VitPose model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will ...
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/vitpose/configuration_vitpose.py
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class VitPoseEstimatorOutput(ModelOutput): """ Class for outputs of pose estimation models. Args: loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided): Loss is not supported at this moment. See https://github.com/ViTAE-Transformer/ViTPose/tree/main/...
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class VitPosePreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = VitPoseConfig base_model_prefix = "vit" main_input_name = "pixel_values" supports_gradient_check...
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class VitPoseSimpleDecoder(nn.Module): """ Simple decoding head consisting of a ReLU activation, 4x upsampling and a 3x3 convolution, turning the feature maps into heatmaps. """ def __init__(self, config) -> None: super().__init__() self.activation = nn.ReLU() self.upsampli...
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class VitPoseClassicDecoder(nn.Module): """ Classic decoding head consisting of a 2 deconvolutional blocks, followed by a 1x1 convolution layer, turning the feature maps into heatmaps. """ def __init__(self, config: VitPoseConfig): super().__init__() self.deconv1 = nn.ConvTranspose...
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class VitPoseForPoseEstimation(VitPosePreTrainedModel): def __init__(self, config: VitPoseConfig) -> None: super().__init__(config) self.backbone = load_backbone(config) # add backbone attributes if not hasattr(self.backbone.config, "hidden_size"): raise ValueError("The...
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class VitPoseImageProcessor(BaseImageProcessor): r""" Constructs a VitPose image processor. Args: do_affine_transform (`bool`, *optional*, defaults to `True`): Whether to apply an affine transformation to the input images. size (`Dict[str, int]` *optional*, defaults to `{"height...
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class MistralConverter: """ A general tiktoken converter. """ def __init__( self, vocab=None, pattern=r"""(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}{1,3}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+""", add_prefix_space=False, additional_sp...
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/pixtral/convert_pixtral_weights_to_hf.py
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class PixtralVisionConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`PixtralVisionModel`]. It is used to instantiate an Pixtral vision encoder according to the specified arguments, defining the model architecture. Instantiating a configuration with the defa...
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class PixtralProcessorKwargs(ProcessingKwargs, total=False): _defaults = { "text_kwargs": { "padding": False, }, "images_kwargs": {}, "common_kwargs": { "return_tensors": "pt", }, }
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class BatchMixFeature(BatchFeature): def to(self, *args, **kwargs) -> "BatchMixFeature": """ Send all values to device by calling `v.to(*args, **kwargs)` (PyTorch only). This should support casting in different `dtypes` and sending the `BatchFeature` to a different `device`. Args: ...
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class PixtralProcessor(ProcessorMixin): r""" Constructs a Pixtral processor which wraps a Pixtral image processor and a Pixtral tokenizer into a single processor. [`PixtralProcessor`] offers all the functionalities of [`CLIPImageProcessor`] and [`LlamaTokenizerFast`]. See the [`~PixtralProcessor.__call...
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class PixtralRotaryEmbedding(nn.Module): """ The key with pixtral embedding is just that you have a frequency for each pixel positions. If you have height x width pixels (or embedding pixels), then the frequency used for ROPE is given by indexing the pre_computed frequency on the width and height. ...
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class PixtralAttention(nn.Module): """Multi-headed attention from 'Attention Is All You Need' paper""" def __init__(self, config): super().__init__() self.config = config self.embed_dim = config.hidden_size self.num_heads = config.num_attention_heads self.head_dim = self...
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class PixtralMLP(nn.Module): def __init__(self, config): super().__init__() self.config = config self.hidden_size = config.hidden_size self.intermediate_size = config.intermediate_size self.gate_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False) se...
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class PixtralRMSNorm(nn.Module): def __init__(self, hidden_size, eps=1e-6): """ PixtralRMSNorm is equivalent to T5LayerNorm """ super().__init__() self.weight = nn.Parameter(torch.ones(hidden_size)) self.variance_epsilon = eps def forward(self, hidden_states): ...
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class PixtralAttentionLayer(nn.Module): def __init__(self, config): super().__init__() self.attention_norm = PixtralRMSNorm(config.hidden_size, eps=1e-5) self.feed_forward = PixtralMLP(config) self.attention = PixtralAttention(config) self.ffn_norm = PixtralRMSNorm(config.hid...
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class PixtralTransformer(nn.Module): def __init__(self, config): super().__init__() self.config = config self.layers = torch.nn.ModuleList() for _ in range(config.num_hidden_layers): self.layers.append(PixtralAttentionLayer(config)) self.gradient_checkpointing = F...
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class PixtralPreTrainedModel(PreTrainedModel): config_class = PixtralVisionConfig base_model_prefix = "model" supports_gradient_checkpointing = True _no_split_modules = ["PixtralVisionAttention"] _skip_keys_device_placement = "past_key_values" _supports_cache_class = True def _init_weights(...
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class PixtralVisionModel(PixtralPreTrainedModel): base_model_prefix = "vision_encoder" def __init__(self, config): super().__init__(config) self.config = config self.patch_conv = nn.Conv2d( in_channels=config.num_channels, out_channels=config.hidden_size, ...
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class BatchMixFeature(BatchFeature): def to(self, *args, **kwargs) -> "BatchMixFeature": """ Send all values to device by calling `v.to(*args, **kwargs)` (PyTorch only). This should support casting in different `dtypes` and sending the `BatchFeature` to a different `device`. Args: ...
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class PixtralImageProcessor(BaseImageProcessor): r""" Constructs a Pixtral image processor. Args: do_resize (`bool`, *optional*, defaults to `True`): Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridden by `do_resize` in the `pr...
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class PixtralImageProcessorFast(BaseImageProcessorFast): r""" Constructs a fast Pixtral image processor that leverages torchvision. Args: do_resize (`bool`, *optional*, defaults to `True`): Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridd...
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/Users/nielsrogge/Documents/python_projecten/transformers/src/transformers/models/pixtral/image_processing_pixtral_fast.py
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class GLPNConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`GLPNModel`]. It is used to instantiate an GLPN model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yield a similar conf...
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class GLPNImageProcessor(BaseImageProcessor): r""" Constructs a GLPN image processor. Args: do_resize (`bool`, *optional*, defaults to `True`): Whether to resize the image's (height, width) dimensions, rounding them down to the closest multiple of `size_divisor`. Can be over...
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class GLPNDropPath(nn.Module): """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks).""" def __init__(self, drop_prob: Optional[float] = None) -> None: super().__init__() self.drop_prob = drop_prob def forward(self, hidden_states: torch.Tensor) -> torch...
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class GLPNOverlapPatchEmbeddings(nn.Module): """Construct the overlapping patch embeddings.""" def __init__(self, patch_size, stride, num_channels, hidden_size): super().__init__() self.proj = nn.Conv2d( num_channels, hidden_size, kernel_size=patch_size, ...
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class GLPNEfficientSelfAttention(nn.Module): """SegFormer's efficient self-attention mechanism. Employs the sequence reduction process introduced in the [PvT paper](https://arxiv.org/abs/2102.12122).""" def __init__(self, config, hidden_size, num_attention_heads, sequence_reduction_ratio): super()....
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class GLPNSelfOutput(nn.Module): def __init__(self, config, hidden_size): super().__init__() self.dense = nn.Linear(hidden_size, hidden_size) self.dropout = nn.Dropout(config.hidden_dropout_prob) def forward(self, hidden_states, input_tensor): hidden_states = self.dense(hidden_s...
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class GLPNAttention(nn.Module): def __init__(self, config, hidden_size, num_attention_heads, sequence_reduction_ratio): super().__init__() self.self = GLPNEfficientSelfAttention( config=config, hidden_size=hidden_size, num_attention_heads=num_attention_heads, ...
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class GLPNDWConv(nn.Module): def __init__(self, dim=768): super().__init__() self.dwconv = nn.Conv2d(dim, dim, 3, 1, 1, bias=True, groups=dim) def forward(self, hidden_states, height, width): batch_size, seq_len, num_channels = hidden_states.shape hidden_states = hidden_states.t...
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class GLPNMixFFN(nn.Module): def __init__(self, config, in_features, hidden_features=None, out_features=None): super().__init__() out_features = out_features or in_features self.dense1 = nn.Linear(in_features, hidden_features) self.dwconv = GLPNDWConv(hidden_features) if isin...
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class GLPNLayer(nn.Module): """This corresponds to the Block class in the original implementation.""" def __init__(self, config, hidden_size, num_attention_heads, drop_path, sequence_reduction_ratio, mlp_ratio): super().__init__() self.layer_norm_1 = nn.LayerNorm(hidden_size) self.atten...
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class GLPNEncoder(nn.Module): def __init__(self, config): super().__init__() self.config = config # stochastic depth decay rule dpr = [x.item() for x in torch.linspace(0, config.drop_path_rate, sum(config.depths))] # patch embeddings embeddings = [] for i in...
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class GLPNPreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = GLPNConfig base_model_prefix = "glpn" main_input_name = "pixel_values" _no_split_modules = [] ...
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class GLPNModel(GLPNPreTrainedModel): # Copied from transformers.models.segformer.modeling_segformer.SegformerModel.__init__ with Segformer->GLPN def __init__(self, config): super().__init__(config) self.config = config # hierarchical Transformer encoder self.encoder = GLPNEncod...
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class GLPNSelectiveFeatureFusion(nn.Module): """ Selective Feature Fusion module, as explained in the [paper](https://arxiv.org/abs/2201.07436) (section 3.4). This module adaptively selects and integrates local and global features by attaining an attention map for each feature. """ def __init__(sel...
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class GLPNDecoderStage(nn.Module): def __init__(self, in_channels, out_channels): super().__init__() should_skip = in_channels == out_channels self.convolution = nn.Conv2d(in_channels, out_channels, kernel_size=1) if not should_skip else nn.Identity() self.fusion = GLPNSelectiveFeatu...
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class GLPNDecoder(nn.Module): def __init__(self, config): super().__init__() # we use features from end -> start reserved_hidden_sizes = config.hidden_sizes[::-1] out_channels = config.decoder_hidden_size self.stages = nn.ModuleList( [GLPNDecoderStage(hidden_size...
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class SiLogLoss(nn.Module): r""" Implements the Scale-invariant log scale loss [Eigen et al., 2014](https://arxiv.org/abs/1406.2283). $$L=\frac{1}{n} \sum_{i} d_{i}^{2}-\frac{1}{2 n^{2}}\left(\sum_{i} d_{i}^{2}\right)$$ where $d_{i}=\log y_{i}-\log y_{i}^{*}$. """ def __init__(self, lambd=0.5...
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class GLPNDepthEstimationHead(nn.Module): def __init__(self, config): super().__init__() self.config = config channels = config.decoder_hidden_size self.head = nn.Sequential( nn.Conv2d(channels, channels, kernel_size=3, stride=1, padding=1), nn.ReLU(inplace=...
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class GLPNForDepthEstimation(GLPNPreTrainedModel): def __init__(self, config): super().__init__(config) self.glpn = GLPNModel(config) self.decoder = GLPNDecoder(config) self.head = GLPNDepthEstimationHead(config) # Initialize weights and apply final processing self....
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class GLPNFeatureExtractor(GLPNImageProcessor): def __init__(self, *args, **kwargs) -> None: warnings.warn( "The class GLPNFeatureExtractor is deprecated and will be removed in version 5 of Transformers. Please" " use GLPNImageProcessor instead.", FutureWarning, )...
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class BigBirdPegasusConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`BigBirdPegasusModel`]. It is used to instantiate an BigBirdPegasus model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defa...
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class BigBirdPegasusOnnxConfig(OnnxSeq2SeqConfigWithPast): @property def inputs(self) -> Mapping[str, Mapping[int, str]]: if self.task in ["default", "seq2seq-lm"]: common_inputs = OrderedDict( [ ("input_ids", {0: "batch", 1: "encoder_sequence"}), ...
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class BigBirdPegasusLearnedPositionalEmbedding(nn.Embedding): """ This module learns positional embeddings up to a fixed maximum size. """ def __init__(self, num_embeddings: int, embedding_dim: int): super().__init__(num_embeddings, embedding_dim) def forward(self, input_ids_shape: torch.S...
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class BigBirdPegasusScaledWordEmbedding(nn.Embedding): """ This module overrides nn.Embeddings' forward by multiplying with embeddings scale. """ def __init__(self, num_embeddings: int, embedding_dim: int, padding_idx: int, embed_scale: Optional[float] = 1.0): super().__init__(num_embeddings, e...
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class BigBirdPegasusSelfAttention(nn.Module): def __init__(self, config): super().__init__() if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): raise ValueError( f"The hidden size ({config.hidden_size}) is not a multiple of ...
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class BigBirdPegasusBlockSparseAttention(nn.Module): def __init__(self, config, seed=None): super().__init__() self.max_seqlen = config.max_position_embeddings self.seed = seed if config.hidden_size % config.num_attention_heads != 0: raise ValueError( f"...
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class BigBirdPegasusEncoderAttention(nn.Module): def __init__(self, config, seed=None): super().__init__() self.config = config self.seed = seed self.attention_type = config.attention_type if self.attention_type == "original_full": self.self = BigBirdPegasusSelf...
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class BigBirdPegasusDecoderAttention(nn.Module): """Multi-headed attention from 'Attention Is All You Need' paper""" def __init__( self, embed_dim: int, num_heads: int, dropout: float = 0.0, is_decoder: bool = False, bias: bool = True, is_causal: bool = F...
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class BigBirdPegasusEncoderLayer(nn.Module): def __init__(self, config: BigBirdPegasusConfig, seed=None): super().__init__() self.attention_type = config.attention_type self.embed_dim = config.d_model self.self_attn = BigBirdPegasusEncoderAttention(config, seed=seed) self.sel...
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class BigBirdPegasusDecoderLayer(nn.Module): def __init__(self, config: BigBirdPegasusConfig): super().__init__() self.embed_dim = config.d_model self.self_attn = BigBirdPegasusDecoderAttention( embed_dim=self.embed_dim, num_heads=config.decoder_attention_heads, ...
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class BigBirdPegasusClassificationHead(nn.Module): """Head for sentence-level classification tasks.""" def __init__( self, input_dim: int, inner_dim: int, num_classes: int, pooler_dropout: float, ): super().__init__() self.dense = nn.Linear(input_dim,...
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class BigBirdPegasusPreTrainedModel(PreTrainedModel): config_class = BigBirdPegasusConfig base_model_prefix = "model" supports_gradient_checkpointing = True _no_split_modules = ["BigBirdPegasusEncoderLayer", "BigBirdPegasusDecoderLayer"] _skip_keys_device_placement = "past_key_values" _supports_...
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class BigBirdPegasusEncoder(BigBirdPegasusPreTrainedModel): """ Transformer encoder consisting of *config.encoder_layers* self attention layers. Each layer is a [`BigBirdPegasusEncoderLayer`]. Args: config: BigBirdPegasusConfig embed_tokens (nn.Embedding): output embedding """ ...
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class BigBirdPegasusDecoder(BigBirdPegasusPreTrainedModel): """ Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`BigBirdPegasusDecoderLayer`] Args: config: BigBirdPegasusConfig embed_tokens (nn.Embedding): output embedding """ def __init__(self, c...
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class BigBirdPegasusModel(BigBirdPegasusPreTrainedModel): _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"] def __init__(self, config: BigBirdPegasusConfig): super().__init__(config) padding_idx, vocab_size = config.pad_token_id, config.vocab_size embe...
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class BigBirdPegasusForConditionalGeneration(BigBirdPegasusPreTrainedModel, GenerationMixin): base_model_prefix = "model" _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight", "lm_head.weight"] _keys_to_ignore_on_load_missing = ["final_logits_bias"] def __init__(self, conf...
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class BigBirdPegasusForSequenceClassification(BigBirdPegasusPreTrainedModel): _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"] def __init__(self, config: BigBirdPegasusConfig, **kwargs): super().__init__(config, **kwargs) self.model = BigBirdPegasusModel(confi...
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class BigBirdPegasusForQuestionAnswering(BigBirdPegasusPreTrainedModel): _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"] def __init__(self, config): super().__init__(config) config.num_labels = 2 self.num_labels = config.num_labels self.mode...
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class BigBirdPegasusDecoderWrapper(BigBirdPegasusPreTrainedModel): """ This wrapper class is a helper class to correctly load pretrained checkpoints when the causal language model is used in combination with the [`EncoderDecoderModel`] framework. """ def __init__(self, config): super().__in...
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class BigBirdPegasusForCausalLM(BigBirdPegasusPreTrainedModel, GenerationMixin): _tied_weights_keys = ["lm_head.weight"] def __init__(self, config): config = copy.deepcopy(config) config.is_decoder = True config.is_encoder_decoder = False super().__init__(config) self.mo...
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class BioGptTokenizer(PreTrainedTokenizer): """ Construct an FAIRSEQ Transformer tokenizer. Moses tokenization followed by Byte-Pair Encoding. This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to this superclass for more information regardi...
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class BioGptLearnedPositionalEmbedding(nn.Embedding): """ This module learns positional embeddings up to a fixed maximum size. """ def __init__(self, num_embeddings: int, embedding_dim: int): # BioGpt is set up so that if padding_idx is specified then offset the embedding ids by 2 # and...
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class BioGptScaledWordEmbedding(nn.Embedding): """ This module overrides nn.Embeddings' forward by multiplying with embeddings scale. """ def __init__(self, num_embeddings: int, embedding_dim: int, padding_idx: int, embed_scale: Optional[float] = 1.0): super().__init__(num_embeddings, embedding...
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class BioGptAttention(nn.Module): """Multi-headed attention from 'Attention Is All You Need' paper""" def __init__( self, embed_dim: int, num_heads: int, dropout: float = 0.0, is_decoder: bool = False, bias: bool = True, is_causal: bool = False, c...
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class BioGptSdpaAttention(BioGptAttention): def forward( self, hidden_states: torch.Tensor, key_value_states: Optional[torch.Tensor] = None, past_key_value: Optional[Tuple[torch.Tensor]] = None, attention_mask: Optional[torch.Tensor] = None, layer_head_mask: Optional[...
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class BioGptDecoderLayer(nn.Module): def __init__(self, config: BioGptConfig): super().__init__() self.embed_dim = config.hidden_size self.self_attn = BIOGPT_ATTENTION_CLASSES[config._attn_implementation]( embed_dim=self.embed_dim, num_heads=config.num_attention_head...
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class BioGptPreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = BioGptConfig base_model_prefix = "biogpt" supports_gradient_checkpointing = True _supports_sdpa =...
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class BioGptModel(BioGptPreTrainedModel): def __init__(self, config: BioGptConfig): super().__init__(config) self.config = config self.layerdrop = config.layerdrop self.dropout = config.hidden_dropout_prob self.embed_dim = config.hidden_size self.padding_idx = config....
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class BioGptForCausalLM(BioGptPreTrainedModel, GenerationMixin): _tied_weights_keys = ["output_projection.weight"] def __init__(self, config): super().__init__(config) self.biogpt = BioGptModel(config) self.output_projection = nn.Linear(config.hidden_size, config.vocab_size, bias=False...
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class BioGptForTokenClassification(BioGptPreTrainedModel): def __init__(self, config): super().__init__(config) self.num_labels = config.num_labels self.biogpt = BioGptModel(config) if hasattr(config, "classifier_dropout") and config.classifier_dropout is not None: class...
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class BioGptForSequenceClassification(BioGptPreTrainedModel): def __init__(self, config: BioGptConfig): super().__init__(config) self.num_labels = config.num_labels self.biogpt = BioGptModel(config) self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False) # In...
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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 simila...
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class Dictionary: """A mapping from symbols to consecutive integers""" def __init__( self, *, # begin keyword-only arguments bos="<s>", pad="<pad>", eos="</s>", unk="<unk>", extra_special_symbols=None, ): self.bos_word, self.unk_word, self.pa...
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class VisualBertConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`VisualBertModel`]. It is used to instantiate an VisualBERT model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yi...
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class VisualBertEmbeddings(nn.Module): """Construct the embeddings from word, position and token_type embeddings and visual embeddings.""" def __init__(self, config): super().__init__() self.word_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, padding_idx=config.pad_token_id) ...
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class VisualBertSelfAttention(nn.Module): def __init__(self, config): super().__init__() if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): raise ValueError( f"The hidden size ({config.hidden_size}) is not a multiple of the ...
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