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class ViTHybridForImageClassification(ViTHybridPreTrainedModel): def __init__(self, config: ViTHybridConfig) -> None: super().__init__(config) self.num_labels = config.num_labels self.vit = ViTHybridModel(config, add_pooling_layer=False) # Classifier head self.classifier = ...
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class MultiScaleDeformableAttentionFunction(Function): @staticmethod def forward( context, value, value_spatial_shapes, value_level_start_index, sampling_locations, attention_weights, im2col_step, ): context.im2col_step = im2col_step ou...
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class DetaDecoderOutput(ModelOutput): """ Base class for outputs of the DetaDecoder. This class adds two attributes to BaseModelOutputWithCrossAttentions, namely: - a stacked tensor of intermediate decoder hidden states (i.e. the output of each decoder layer) - a stacked tensor of intermediate refer...
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class DetaModelOutput(ModelOutput): """ Base class for outputs of the Deformable DETR encoder-decoder model. Args: init_reference_points (`torch.FloatTensor` of shape `(batch_size, num_queries, 4)`): Initial reference points sent through the Transformer decoder. last_hidden_sta...
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class DetaObjectDetectionOutput(ModelOutput): """ Output type of [`DetaForObjectDetection`]. Args: loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` are provided)): Total loss as a linear combination of a negative log-likehood (cross-entropy) for class predic...
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class DetaFrozenBatchNorm2d(nn.Module): """ BatchNorm2d where the batch statistics and the affine parameters are fixed. Copy-paste from torchvision.misc.ops with added eps before rqsrt, without which any other models than torchvision.models.resnet[18,34,50,101] produce nans. """ def __init__(s...
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class DetaBackboneWithPositionalEncodings(nn.Module): """ Backbone model with positional embeddings. nn.BatchNorm2d layers are replaced by DetaFrozenBatchNorm2d as defined above. """ def __init__(self, config): super().__init__() backbone = load_backbone(config) with torch...
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class DetaSinePositionEmbedding(nn.Module): """ This is a more standard version of the position embedding, very similar to the one used by the Attention is all you need paper, generalized to work on images. """ def __init__(self, embedding_dim=64, temperature=10000, normalize=False, scale=None): ...
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class DetaLearnedPositionEmbedding(nn.Module): """ This module learns positional embeddings up to a fixed maximum size. """ def __init__(self, embedding_dim=256): super().__init__() self.row_embeddings = nn.Embedding(50, embedding_dim) self.column_embeddings = nn.Embedding(50, e...
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class DetaMultiscaleDeformableAttention(nn.Module): """ Multiscale deformable attention as proposed in Deformable DETR. """ def __init__(self, config: DetaConfig, num_heads: int, n_points: int): super().__init__() kernel_loaded = MultiScaleDeformableAttention is not None if is_...
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class DetaMultiheadAttention(nn.Module): """ Multi-headed attention from 'Attention Is All You Need' paper. Here, we add position embeddings to the queries and keys (as explained in the Deformable DETR paper). """ def __init__( self, embed_dim: int, num_heads: int, ...
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class DetaEncoderLayer(nn.Module): def __init__(self, config: DetaConfig): super().__init__() self.embed_dim = config.d_model self.self_attn = DetaMultiscaleDeformableAttention( config, num_heads=config.encoder_attention_heads, n_points=config.encoder_n_po...
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class DetaDecoderLayer(nn.Module): def __init__(self, config: DetaConfig): super().__init__() self.embed_dim = config.d_model # self-attention self.self_attn = DetaMultiheadAttention( embed_dim=self.embed_dim, num_heads=config.decoder_attention_heads, ...
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class DetaPreTrainedModel(PreTrainedModel): config_class = DetaConfig base_model_prefix = "model" main_input_name = "pixel_values" _no_split_modules = [r"DetaBackboneWithPositionalEncodings", r"DetaEncoderLayer", r"DetaDecoderLayer"] supports_gradient_checkpointing = True def _init_weights(self...
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class DetaEncoder(DetaPreTrainedModel): """ Transformer encoder consisting of *config.encoder_layers* deformable attention layers. Each layer is a [`DetaEncoderLayer`]. The encoder updates the flattened multi-scale feature maps through multiple deformable attention layers. Args: config: De...
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class DetaDecoder(DetaPreTrainedModel): """ Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`DetaDecoderLayer`]. The decoder updates the query embeddings through multiple self-attention and cross-attention layers. Some tweaks for Deformable DETR: - `position_emb...
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class DetaModel(DetaPreTrainedModel): def __init__(self, config: DetaConfig): super().__init__(config) if config.two_stage: requires_backends(self, ["torchvision"]) # Create backbone with positional encoding self.backbone = DetaBackboneWithPositionalEncodings(config) ...
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class DetaForObjectDetection(DetaPreTrainedModel): # When using clones, all layers > 0 will be clones, but layer 0 *is* required _tied_weights_keys = [r"bbox_embed\.\d+", r"class_embed\.\d+"] # We can't initialize the model on meta device as some weights are modified during the initialization _no_split_...
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class DetaLoss(nn.Module): """ This class computes the losses for `DetaForObjectDetection`. The process happens in two steps: 1) we compute hungarian assignment between ground truth boxes and the outputs of the model 2) we supervise each pair of matched ground-truth / prediction (supervised class and bo...
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class DetaMLPPredictionHead(nn.Module): """ Very simple multi-layer perceptron (MLP, also called FFN), used to predict the normalized center coordinates, height and width of a bounding box w.r.t. an image. Copied from https://github.com/facebookresearch/detr/blob/master/models/detr.py """ def...
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class DetaHungarianMatcher(nn.Module): """ This class computes an assignment between the targets and the predictions of the network. For efficiency reasons, the targets don't include the no_object. Because of this, in general, there are more predictions than targets. In this case, we do a 1-to-1 matchi...
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class DetaMatcher: """ This class assigns to each predicted "element" (e.g., a box) a ground-truth element. Each predicted element will have exactly zero or one matches; each ground-truth element may be matched to zero or more predicted elements. The matching is determined by the MxN match_quality_matr...
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class DetaStage2Assigner(nn.Module): def __init__(self, num_queries, max_k=4): super().__init__() self.positive_fraction = 0.25 self.bg_label = 400 # number > 91 to filter out later self.batch_size_per_image = num_queries self.proposal_matcher = DetaMatcher(thresholds=[0.6],...
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class DetaStage1Assigner(nn.Module): def __init__(self, t_low=0.3, t_high=0.7, max_k=4): super().__init__() self.positive_fraction = 0.5 self.batch_size_per_image = 256 self.k = max_k self.t_low = t_low self.t_high = t_high self.anchor_matcher = DetaMatcher( ...
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class DetaConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`DetaModel`]. It is used to instantiate a DETA model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yield a similar confi...
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class DetaImageProcessor(BaseImageProcessor): r""" Constructs a Deformable DETR image processor. Args: format (`str`, *optional*, defaults to `"coco_detection"`): Data format of the annotations. One of "coco_detection" or "coco_panoptic". do_resize (`bool`, *optional*, defaults ...
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class RetriBertTokenizer(PreTrainedTokenizer): r""" Constructs a RetriBERT tokenizer. [`RetriBertTokenizer`] is identical to [`BertTokenizer`] and runs end-to-end tokenization: punctuation splitting and wordpiece. This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main...
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class BasicTokenizer: """ Constructs a BasicTokenizer that will run basic tokenization (punctuation splitting, lower casing, etc.). Args: do_lower_case (`bool`, *optional*, defaults to `True`): Whether or not to lowercase the input when tokenizing. never_split (`Iterable`, *opti...
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class WordpieceTokenizer: """Runs WordPiece tokenization.""" def __init__(self, vocab, unk_token, max_input_chars_per_word=100): self.vocab = vocab self.unk_token = unk_token self.max_input_chars_per_word = max_input_chars_per_word def tokenize(self, text): """ Toke...
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class RetriBertTokenizerFast(PreTrainedTokenizerFast): r""" Construct a "fast" RetriBERT tokenizer (backed by HuggingFace's *tokenizers* library). [`RetriBertTokenizerFast`] is identical to [`BertTokenizerFast`] and runs end-to-end tokenization: punctuation splitting and wordpiece. This tokenizer ...
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class RetriBertConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`RetriBertModel`]. It is used to instantiate a RetriBertModel model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will y...
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class RetriBertPreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = RetriBertConfig load_tf_weights = None base_model_prefix = "retribert" def _init_weights(self...
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class RetriBertModel(RetriBertPreTrainedModel): def __init__(self, config: RetriBertConfig) -> None: super().__init__(config) self.projection_dim = config.projection_dim self.bert_query = BertModel(config) self.bert_doc = None if config.share_encoders else BertModel(config) ...
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class Speech2Text2Config(PretrainedConfig): r""" This is the configuration class to store the configuration of a [`Speech2Text2ForCausalLM`]. It is used to instantiate an Speech2Text2 model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defa...
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class Speech2Text2Tokenizer(PreTrainedTokenizer): """ Constructs a Speech2Text2Tokenizer. This tokenizer inherits from [`PreTrainedTokenizer`] which contains some of the main methods. Users should refer to the superclass for more information regarding such methods. Args: vocab_file (`str`)...
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class Speech2Text2SinusoidalPositionalEmbedding(nn.Module): """This module produces sinusoidal positional embeddings of any length.""" def __init__(self, num_positions: int, embedding_dim: int, padding_idx: Optional[int] = None): super().__init__() self.offset = 2 self.embedding_dim = e...
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class Speech2Text2Attention(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, ...
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class Speech2Text2DecoderLayer(nn.Module): def __init__(self, config: Speech2Text2Config): super().__init__() self.embed_dim = config.d_model self.self_attn = Speech2Text2Attention( embed_dim=self.embed_dim, num_heads=config.decoder_attention_heads, dropo...
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class Speech2Text2PreTrainedModel(PreTrainedModel): config_class = Speech2Text2Config base_model_prefix = "model" supports_gradient_checkpointing = True def _init_weights(self, module): std = self.config.init_std if isinstance(module, (nn.Linear, nn.Conv1d)): module.weight.d...
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class Speech2Text2Decoder(Speech2Text2PreTrainedModel): """ Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`Speech2Text2DecoderLayer`] Args: config: Speech2Text2Config embed_tokens (nn.Embedding): output embedding """ def __init__(self, config: S...
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class Speech2Text2DecoderWrapper(Speech2Text2PreTrainedModel): """ 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().__init__...
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class Speech2Text2ForCausalLM(Speech2Text2PreTrainedModel): _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.model = Speech2Text2Dec...
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class Speech2Text2Processor(ProcessorMixin): r""" Constructs a Speech2Text2 processor which wraps a Speech2Text2 feature extractor and a Speech2Text2 tokenizer into a single processor. [`Speech2Text2Processor`] offers all the functionalities of [`AutoFeatureExtractor`] and [`Speech2Text2Tokenizer`]. ...
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class EfficientFormerConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of an [`EfficientFormerModel`]. It is used to instantiate an EfficientFormer model according to the specified arguments, defining the model architecture. Instantiating a configuration with the ...
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class EfficientFormerPatchEmbeddings(nn.Module): """ This class performs downsampling between two stages. For the input tensor with the shape [batch_size, num_channels, height, width] it produces output tensor with the shape [batch_size, num_channels, height/stride, width/stride] """ def __init__(s...
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class EfficientFormerSelfAttention(nn.Module): def __init__(self, dim: int, key_dim: int, num_heads: int, attention_ratio: int, resolution: int): super().__init__() self.num_heads = num_heads self.key_dim = key_dim self.attention_ratio = attention_ratio self.scale = key_dim*...
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class EfficientFormerConvStem(nn.Module): def __init__(self, config: EfficientFormerConfig, out_channels: int): super().__init__() self.convolution1 = nn.Conv2d(config.num_channels, out_channels // 2, kernel_size=3, stride=2, padding=1) self.batchnorm_before = nn.BatchNorm2d(out_channels //...
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class EfficientFormerPooling(nn.Module): def __init__(self, pool_size: int): super().__init__() self.pool = nn.AvgPool2d(pool_size, stride=1, padding=pool_size // 2, count_include_pad=False) def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: output = self.pool(hidden_states...
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class EfficientFormerDenseMlp(nn.Module): def __init__( self, config: EfficientFormerConfig, in_features: int, hidden_features: Optional[int] = None, out_features: Optional[int] = None, ): super().__init__() out_features = out_features or in_features ...
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class EfficientFormerConvMlp(nn.Module): def __init__( self, config: EfficientFormerConfig, in_features: int, hidden_features: Optional[int] = None, out_features: Optional[int] = None, drop: float = 0.0, ): super().__init__() out_features = out_fea...
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class EfficientFormerDropPath(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.Tenso...
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class EfficientFormerFlat(nn.Module): def __init__(self): super().__init__() def forward(self, hidden_states: torch.Tensor) -> Tuple[torch.Tensor]: hidden_states = hidden_states.flatten(2).transpose(1, 2) return hidden_states
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class EfficientFormerMeta3D(nn.Module): def __init__(self, config: EfficientFormerConfig, dim: int, drop_path: float = 0.0): super().__init__() self.token_mixer = EfficientFormerSelfAttention( dim=config.dim, key_dim=config.key_dim, num_heads=config.num_attention...
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class EfficientFormerMeta3DLayers(nn.Module): def __init__(self, config: EfficientFormerConfig): super().__init__() drop_paths = [ config.drop_path_rate * (block_idx + sum(config.depths[:-1])) for block_idx in range(config.num_meta3d_blocks) ] self.blocks = nn...
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class EfficientFormerMeta4D(nn.Module): def __init__(self, config: EfficientFormerConfig, dim: int, drop_path: float = 0.0): super().__init__() pool_size = config.pool_size if config.pool_size is not None else 3 self.token_mixer = EfficientFormerPooling(pool_size=pool_size) mlp_hidde...
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class EfficientFormerMeta4DLayers(nn.Module): def __init__(self, config: EfficientFormerConfig, stage_idx: int): super().__init__() num_layers = ( config.depths[stage_idx] if stage_idx != -1 else config.depths[stage_idx] - config.num_meta3d_blocks ) drop_paths = [ ...
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class EfficientFormerIntermediateStage(nn.Module): def __init__(self, config: EfficientFormerConfig, index: int): super().__init__() self.meta4D_layers = EfficientFormerMeta4DLayers(config, index) def forward(self, hidden_states: torch.Tensor) -> Tuple[torch.Tensor]: hidden_states = sel...
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class EfficientFormerLastStage(nn.Module): def __init__(self, config: EfficientFormerConfig): super().__init__() self.meta4D_layers = EfficientFormerMeta4DLayers(config, -1) self.flat = EfficientFormerFlat() self.meta3D_layers = EfficientFormerMeta3DLayers(config) def forward(se...
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class EfficientFormerEncoder(nn.Module): def __init__(self, config: EfficientFormerConfig): super().__init__() self.config = config num_intermediate_stages = len(config.depths) - 1 downsamples = [ config.downsamples[i] or config.hidden_sizes[i] != config.hidden_sizes[i + ...
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class EfficientFormerPreTrainedModel(PreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = EfficientFormerConfig base_model_prefix = "efficientformer" main_input_name = "pixel_values"...
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class EfficientFormerModel(EfficientFormerPreTrainedModel): def __init__(self, config: EfficientFormerConfig): super().__init__(config) self.config = config _no_split_modules = ["EfficientFormerMeta4D"] self.patch_embed = EfficientFormerConvStem(config, config.hidden_sizes[0]) ...
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class EfficientFormerForImageClassification(EfficientFormerPreTrainedModel): def __init__(self, config: EfficientFormerConfig): super().__init__(config) self.num_labels = config.num_labels self.efficientformer = EfficientFormerModel(config) # Classifier head self.classifier...
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class EfficientFormerForImageClassificationWithTeacherOutput(ModelOutput): """ Output type of [`EfficientFormerForImageClassificationWithTeacher`]. Args: logits (`torch.FloatTensor` of shape `(batch_size, config.num_labels)`): Prediction scores as the average of the cls_logits and disti...
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class EfficientFormerForImageClassificationWithTeacher(EfficientFormerPreTrainedModel): def __init__(self, config: EfficientFormerConfig): super().__init__(config) self.num_labels = config.num_labels self.efficientformer = EfficientFormerModel(config) # Classifier head self...
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class EfficientFormerImageProcessor(BaseImageProcessor): r""" Constructs a EfficientFormer image processor. Args: do_resize (`bool`, *optional*, defaults to `True`): Whether to resize the image's (height, width) dimensions to the specified `(size["height"], size["width"])`. ...
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class TFEfficientFormerPatchEmbeddings(keras.layers.Layer): """ This class performs downsampling between two stages. For the input tensor with the shape [batch_size, num_channels, height, width] it produces output tensor with the shape [batch_size, num_channels, height/stride, width/stride] """ def...
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class TFEfficientFormerSelfAttention(keras.layers.Layer): def __init__( self, dim: int, key_dim: int, num_heads: int, attention_ratio: int, resolution: int, config: EfficientFormerConfig, **kwargs, ): super().__init__(**kwargs) sel...
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class TFEfficientFormerConvStem(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, out_channels: int, **kwargs): super().__init__(**kwargs) self.padding = keras.layers.ZeroPadding2D(padding=1) self.convolution1 = keras.layers.Conv2D( filters=out_channels // 2...
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class TFEfficientFormerPooling(keras.layers.Layer): def __init__(self, pool_size: int, **kwargs): super().__init__(**kwargs) self.pool = keras.layers.AveragePooling2D(pool_size=pool_size, strides=1, padding="same") def call(self, hidden_states: tf.Tensor) -> tf.Tensor: output = self.poo...
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class TFEfficientFormerDenseMlp(keras.layers.Layer): def __init__( self, config: EfficientFormerConfig, in_features: int, hidden_features: Optional[int] = None, out_features: Optional[int] = None, **kwargs, ): super().__init__(**kwargs) out_feature...
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class TFEfficientFormerConvMlp(keras.layers.Layer): def __init__( self, config: EfficientFormerConfig, in_features: int, hidden_features: Optional[int] = None, out_features: Optional[int] = None, drop: float = 0.0, **kwargs, ): super().__init__(**k...
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class TFEfficientFormerDropPath(keras.layers.Layer): """Drop paths (Stochastic Depth) per sample (when applied in main path of residual blocks). References: (1) github.com:rwightman/pytorch-image-models """ def __init__(self, drop_path: float, **kwargs): super().__init__(**kwargs) ...
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class TFEfficientFormerFlat(keras.layers.Layer): def __init__(self, **kwargs): super().__init__(**kwargs) def call(self, hidden_states: tf.Tensor) -> Tuple[tf.Tensor]: batch_size, _, _, in_channels = shape_list(hidden_states) hidden_states = tf.reshape(hidden_states, shape=[batch_size, ...
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class TFEfficientFormerMeta3D(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, dim: int, drop_path: float = 0.0, **kwargs): super().__init__(**kwargs) self.token_mixer = TFEfficientFormerSelfAttention( dim=config.dim, key_dim=config.key_dim, ...
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class TFEfficientFormerMeta3DLayers(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, **kwargs): super().__init__(**kwargs) drop_paths = [ config.drop_path_rate * (block_idx + sum(config.depths[:-1])) for block_idx in range(config.num_meta3d_blocks) ...
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class TFEfficientFormerMeta4D(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, dim: int, drop_path: float = 0.0, **kwargs): super().__init__(**kwargs) pool_size = config.pool_size if config.pool_size is not None else 3 self.token_mixer = TFEfficientFormerPooling(pool_si...
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class TFEfficientFormerMeta4DLayers(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, stage_idx: int, **kwargs): super().__init__(**kwargs) num_layers = ( config.depths[stage_idx] if stage_idx != -1 else config.depths[stage_idx] - config.num_meta3d_blocks ) ...
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class TFEfficientFormerIntermediateStage(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, index: int, **kwargs): super().__init__(**kwargs) self.meta4D_layers = TFEfficientFormerMeta4DLayers(config=config, stage_idx=index, name="meta4D_layers") def call(self, hidden_states...
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class TFEfficientFormerLastStage(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, **kwargs): super().__init__(**kwargs) self.meta4D_layers = TFEfficientFormerMeta4DLayers(config=config, stage_idx=-1, name="meta4D_layers") self.flat = TFEfficientFormerFlat(name="flat") ...
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class TFEfficientFormerEncoder(keras.layers.Layer): def __init__(self, config: EfficientFormerConfig, **kwargs): super().__init__(**kwargs) self.config = config num_intermediate_stages = len(config.depths) - 1 downsamples = [ config.downsamples[i] or config.hidden_sizes[...
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class TFEfficientFormerMainLayer(keras.layers.Layer): config_class = EfficientFormerConfig def __init__(self, config: EfficientFormerConfig, **kwargs) -> None: super().__init__(**kwargs) self.config = config self.patch_embed = TFEfficientFormerConvStem(config, config.hidden_sizes[0], n...
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class TFEfficientFormerPreTrainedModel(TFPreTrainedModel): """ An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models. """ config_class = EfficientFormerConfig base_model_prefix = "efficientformer" main_input_name = "pixel_val...
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class TFEfficientFormerModel(TFEfficientFormerPreTrainedModel): def __init__(self, config: EfficientFormerConfig, **kwargs) -> None: super().__init__(config, **kwargs) self.efficientformer = TFEfficientFormerMainLayer(config, name="efficientformer") @unpack_inputs @add_start_docstrings_to_...
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class TFEfficientFormerForImageClassification(TFEfficientFormerPreTrainedModel, TFSequenceClassificationLoss): def __init__(self, config: EfficientFormerConfig): super().__init__(config) self.num_labels = config.num_labels self.efficientformer = TFEfficientFormerMainLayer(config, name="effi...
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class TFEfficientFormerForImageClassificationWithTeacherOutput(ModelOutput): """ Args: Output type of [`EfficientFormerForImageClassificationWithTeacher`]. logits (`tf.Tensor` of shape `(batch_size, config.num_labels)`): Prediction scores as the average of the cls_logits and distillation...
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class TFEfficientFormerForImageClassificationWithTeacher(TFEfficientFormerPreTrainedModel): def __init__(self, config: EfficientFormerConfig) -> None: super().__init__(config) self.num_labels = config.num_labels self.efficientformer = TFEfficientFormerMainLayer(config, name="efficientformer...
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class ScaNNSearcher: """Note that ScaNNSearcher cannot currently be used within the model. In future versions, it might however be included.""" def __init__( self, db, num_neighbors, dimensions_per_block=2, num_leaves=1000, num_leaves_to_search=100, train...
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class RealmRetriever: """The retriever of REALM outputting the retrieved evidence block and whether the block has answers as well as answer positions." Parameters: block_records (`np.ndarray`): A numpy array which cantains evidence texts. tokenizer ([`RealmTokeni...
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class RealmTokenizer(PreTrainedTokenizer): r""" Construct a REALM tokenizer. [`RealmTokenizer`] is identical to [`BertTokenizer`] and runs end-to-end tokenization: punctuation splitting and wordpiece. This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Use...
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class BasicTokenizer: """ Constructs a BasicTokenizer that will run basic tokenization (punctuation splitting, lower casing, etc.). Args: do_lower_case (`bool`, *optional*, defaults to `True`): Whether or not to lowercase the input when tokenizing. never_split (`Iterable`, *opti...
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class WordpieceTokenizer: """Runs WordPiece tokenization.""" def __init__(self, vocab, unk_token, max_input_chars_per_word=100): self.vocab = vocab self.unk_token = unk_token self.max_input_chars_per_word = max_input_chars_per_word def tokenize(self, text): """ Toke...
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class RealmConfig(PretrainedConfig): r""" This is the configuration class to store the configuration of 1. [`RealmEmbedder`] 2. [`RealmScorer`] 3. [`RealmKnowledgeAugEncoder`] 4. [`RealmRetriever`] 5. [`RealmReader`] 6. [`RealmForOpenQA`] It is used to instantiate an REALM model ac...
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class RealmTokenizerFast(PreTrainedTokenizerFast): r""" Construct a "fast" REALM tokenizer (backed by HuggingFace's *tokenizers* library). Based on WordPiece. [`RealmTokenizerFast`] is identical to [`BertTokenizerFast`] and runs end-to-end tokenization: punctuation splitting and wordpiece. This to...
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class RealmEmbeddings(nn.Module): """Construct the embeddings from word, position and token_type embeddings.""" def __init__(self, config): super().__init__() self.word_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, padding_idx=config.pad_token_id) self.position_embedd...
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class RealmSelfAttention(nn.Module): def __init__(self, config, position_embedding_type=None): 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}) ...
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class RealmSelfOutput(nn.Module): def __init__(self, config): super().__init__() self.dense = nn.Linear(config.hidden_size, config.hidden_size) self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) self.dropout = nn.Dropout(config.hidden_dropout_prob) def ...
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class RealmAttention(nn.Module): def __init__(self, config, position_embedding_type=None): super().__init__() self.self = REALM_SELF_ATTENTION_CLASSES[config._attn_implementation]( config, position_embedding_type=position_embedding_type ) self.output = RealmSelfOutput(con...
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class RealmIntermediate(nn.Module): def __init__(self, config): super().__init__() self.dense = nn.Linear(config.hidden_size, config.intermediate_size) if isinstance(config.hidden_act, str): self.intermediate_act_fn = ACT2FN[config.hidden_act] else: self.inter...
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class RealmOutput(nn.Module): def __init__(self, config): super().__init__() self.dense = nn.Linear(config.intermediate_size, config.hidden_size) self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) self.dropout = nn.Dropout(config.hidden_dropout_prob) de...
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class RealmLayer(nn.Module): def __init__(self, config): super().__init__() self.chunk_size_feed_forward = config.chunk_size_feed_forward self.seq_len_dim = 1 self.attention = RealmAttention(config) self.is_decoder = config.is_decoder self.add_cross_attention = config...
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