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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#generation
.md
>>> translated_tokens = model.generate(**inputs, decoder_start_token_id=tokenizer.lang_code_to_id["en_XX"]) >>> tokenizer.batch_decode(translated_tokens, skip_special_tokens=True)[0] "Returns the maximum value of a b c." ```
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#resources
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- [Text classification task guide](../tasks/sequence_classification) - [Causal language modeling task guide](../tasks/language_modeling) - [Translation task guide](../tasks/translation) - [Summarization task guide](../tasks/summarization)
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
.md
This is the configuration class to store the configuration of a [`PLBartModel`]. It is used to instantiate an PLBART 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 PLBART [uclanlp/plbart-base]...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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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 50005): Vocabulary size of the PLBART model. Defines the number of different tokens that can be ...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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d_model (`int`, *optional*, defaults to 768): Dimensionality of the layers and the pooler layer. encoder_layers (`int`, *optional*, defaults to 6): Number of encoder layers. decoder_layers (`int`, *optional*, defaults to 6): Number of decoder layers. encoder_attention_heads (`int`, *optional*, defaults to 12): Number o...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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decoder_attention_heads (`int`, *optional*, defaults to 12): Number of attention heads for each attention layer in the Transformer decoder. decoder_ffn_dim (`int`, *optional*, defaults to 3072): Dimensionality of the "intermediate" (often named feed-forward) layer in decoder. encoder_ffn_dim (`int`, *optional*, default...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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activation_function (`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. dropout (`float`, *optional*, defaults to 0.1): The dropout probability for all fully co...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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attention_dropout (`float`, *optional*, defaults to 0.1): The dropout ratio for the attention probabilities. activation_dropout (`float`, *optional*, defaults to 0.0): The dropout ratio for activations inside the fully connected layer. classifier_dropout (`float`, *optional*, defaults to 0.0): The dropout ratio for cla...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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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). init_std (`float`, *optional*, defaults to 0.02): The standard deviation of the truncated_normal_initializer for initializing all weight matrices. encoder_layerdrop (`floa...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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The LayerDrop probability for the encoder. See the [LayerDrop paper](see https://arxiv.org/abs/1909.11556) for more details. decoder_layerdrop (`float`, *optional*, defaults to 0.0): The LayerDrop probability for the decoder. See the [LayerDrop paper](see https://arxiv.org/abs/1909.11556) for more details. scale_embedd...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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Scale embeddings by diving by sqrt(d_model). use_cache (`bool`, *optional*, defaults to `True`): Whether or not the model should return the last key/values attentions (not used by all models) forced_eos_token_id (`int`, *optional*, defaults to 2): The id of the token to force as the last generated token when `max_lengt...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartconfig
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>>> # Initializing a PLBART uclanlp/plbart-base style configuration >>> configuration = PLBartConfig() >>> # Initializing a model (with random weights) from the uclanlp/plbart-base style configuration >>> model = PLBartModel(configuration) >>> # Accessing the model configuration >>> configuration = model.config ```
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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Construct an PLBART tokenizer. Adapted from [`RobertaTokenizer`] and [`XLNetTokenizer`]. Based on [SentencePiece](https://github.com/google/sentencepiece). The tokenization method is `<tokens> <eos> <language code>` for source language documents, and `<language code> <tokens> <eos>` for target language documents. ...
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https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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src_lang (`str`, *optional*): A string representing the source language. tgt_lang (`str`, *optional*): A string representing the target language. bos_token (`str`, *optional*, defaults to `"<s>"`): The start of sequence token. eos_token (`str`, *optional*, defaults to `"</s>"`): The end of sequence token. sep_token (`s...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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The separator token, which is used when building a sequence from multiple sequences, e.g. two sequences for sequence classification or for a text and a question for question answering. It is also used as the last token of a sequence built with special tokens. cls_token (`str`, *optional*, defaults to `"<s>"`): The cls ...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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unk_token (`str`, *optional*, defaults to `"<unk>"`): The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this token instead. pad_token (`str`, *optional*, defaults to `"<pad>"`): The token used for padding, for example when batching sequences of different lengths. mas...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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The token used for masking values. This is the token used when training this model with masking tasks. This is only used in the `"base"` tokenizer type. For `"multi"` tokenizer, masking is never done for the downstream tasks. language_codes (`str`, *optional*, defaults to `"base"`): What language codes to use. Should b...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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sp_model_kwargs (`dict`, *optional*): Will be passed to the `SentencePieceProcessor.__init__()` method. The [Python wrapper for SentencePiece](https://github.com/google/sentencepiece/tree/master/python) can be used, among other things, to set: - `enable_sampling`: Enable subword regularization. - `nbest_size`: Sampling...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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- `nbest_size = {0,1}`: No sampling is performed. - `nbest_size > 1`: samples from the nbest_size results. - `nbest_size < 0`: assuming that nbest_size is infinite and samples from the all hypothesis (lattice) using forward-filtering-and-backward-sampling algorithm. - `alpha`: Smoothing parameter for unigram sampling, ...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbarttokenizer
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>>> tokenizer = PLBartTokenizer.from_pretrained("uclanlp/plbart-python-en_XX", src_lang="python", tgt_lang="en_XX") >>> example_python_phrase = "def maximum(a,b,c):NEW_LINE_INDENTreturn max([a,b,c])" >>> expected_translation_english = "Returns the maximum value of a b c." >>> inputs = tokenizer(example_python_phrase, t...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartmodel
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The bare PLBART Model outputting raw hidden-states without any specific head on top. This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.) This...
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https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartmodel
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etc.) This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior. Parameters: config ([`PLBartConfig`]): Model configuration class wit...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartmodel
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load the weights associated with the model, only the configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. Methods: forward
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforconditionalgeneration
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The PLBART Model with a language modeling head. Can be used for code-to-text, text-to-code and code-to-code. This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pr...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforconditionalgeneration
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etc.) This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior. Parameters: config ([`PLBartConfig`]): Model configuration class wit...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforconditionalgeneration
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load the weights associated with the model, only the configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. Methods: forward
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforsequenceclassification
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PLBart model with a sequence classification/head on top (a linear layer on top of the pooled output) e.g. for code classification. This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing ...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforsequenceclassification
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etc.) This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior. Parameters: config ([`PLBartConfig`]): Model configuration class wit...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforsequenceclassification
.md
load the weights associated with the model, only the configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. Methods: forward
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/plbart.md
https://huggingface.co/docs/transformers/en/model_doc/plbart/#plbartforcausallm
.md
No docstring available for PLBartForCausalLM Methods: forward
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/t5.md
https://huggingface.co/docs/transformers/en/model_doc/t5/
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<!--Copyright 2020 The HuggingFace 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 agr...
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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. ⚠️ Note that this file is in Markdown but contain specific syntax for our doc-builder (similar to MDX) that may not be rendered ...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#t5
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<div class="flex flex-wrap space-x-1"> <a href="https://huggingface.co/models?filter=t5"> <img alt="Models" src="https://img.shields.io/badge/All_model_pages-t5-blueviolet"> </a> <a href="https://huggingface.co/spaces/docs-demos/t5-base"> <img alt="Spaces" src="https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#overview
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The T5 model was presented in [Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer](https://arxiv.org/pdf/1910.10683.pdf) by [Colin Raffel](https://huggingface.co/craffel), Noam Shazeer, [Adam Roberts](https://huggingface.co/adarob), Katherine Lee, Sharan Narang, Michael Matena, Yanqi Zhou...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#overview
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The abstract from the paper is the following: *Transfer learning, where a model is first pre-trained on a data-rich task before being fine-tuned on a downstream task, has emerged as a powerful technique in natural language processing (NLP). The effectiveness of transfer learning has given rise to a diversity of appro...
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has given rise to a diversity of approaches, methodology, and practice. In this paper, we explore the landscape of transfer learning techniques for NLP by introducing a unified framework that converts every language problem into a text-to-text format. Our systematic study compares pretraining objectives, architectures,...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/t5.md
https://huggingface.co/docs/transformers/en/model_doc/t5/#overview
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approaches, and other factors on dozens of language understanding tasks. By combining the insights from our exploration with scale and our new "Colossal Clean Crawled Corpus", we achieve state-of-the-art results on many benchmarks covering summarization, question answering, text classification, and more. To facilitate ...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#overview
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All checkpoints can be found on the [hub](https://huggingface.co/models?search=t5). This model was contributed by [thomwolf](https://huggingface.co/thomwolf). The original code can be found [here](https://github.com/google-research/text-to-text-transfer-transformer).
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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- T5 is an encoder-decoder model pre-trained on a multi-task mixture of unsupervised and supervised tasks and for which each task is converted into a text-to-text format. T5 works well on a variety of tasks out-of-the-box by prepending a different prefix to the input corresponding to each task, e.g., for translation: *...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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for summarization: *summarize: ...*. - The pretraining includes both supervised and self-supervised training. Supervised training is conducted on downstream tasks provided by the GLUE and SuperGLUE benchmarks (converting them into text-to-text tasks as explained above).
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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- Self-supervised training uses corrupted tokens, by randomly removing 15% of the tokens and replacing them with individual sentinel tokens (if several consecutive tokens are marked for removal, the whole group is replaced with a single sentinel token). The input of the encoder is the corrupted sentence, the input of t...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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- T5 uses relative scalar embeddings. Encoder input padding can be done on the left and on the right. - See the [training](#training), [inference](#inference) and [resources](#resources) sections below for all details regarding usage. T5 comes in different sizes: - [google-t5/t5-small](https://huggingface.co/goog...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/t5.md
https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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- [google-t5/t5-large](https://huggingface.co/google-t5/t5-large) - [google-t5/t5-3b](https://huggingface.co/google-t5/t5-3b) - [google-t5/t5-11b](https://huggingface.co/google-t5/t5-11b). Based on the original T5 model, Google has released some follow-up works: - **T5v1.1**: T5v1.1 is an improved version of T5...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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mixing in the supervised tasks. Refer to the documentation of T5v1.1 which can be found [here](t5v1.1). - **mT5**: mT5 is a multilingual T5 model. It is pre-trained on the mC4 corpus, which includes 101 languages. Refer to the documentation of mT5 which can be found [here](mt5). - **byT5**: byT5 is a T5 model pre-t...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#usage-tips
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to the documentation of byT5 which can be found [here](byt5). - **UL2**: UL2 is a T5 like model pretrained on various denoising objectives - **Flan-T5**: Flan is a pretraining methods that is based on prompting. The Flan-T5 are T5 models trained on the Flan collection of datasets which include: `taskmaster2`, `djay...
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- **FLan-UL2** : the UL2 model finetuned using the "Flan" prompt tuning and dataset collection. - **UMT5**: UmT5 is a multilingual T5 model trained on an improved and refreshed mC4 multilingual corpus, 29 trillion characters across 107 language, using a new sampling method, UniMax. Refer to the documentation of mT5 ...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/t5.md
https://huggingface.co/docs/transformers/en/model_doc/t5/#training
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T5 is an encoder-decoder model and converts all NLP problems into a text-to-text format. It is trained using teacher forcing. This means that for training, we always need an input sequence and a corresponding target sequence. The input sequence is fed to the model using `input_ids`. The target sequence is shifted to th...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#training
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start-sequence token and fed to the decoder using the `decoder_input_ids`. In teacher-forcing style, the target sequence is then appended by the EOS token and corresponds to the `labels`. The PAD token is hereby used as the start-sequence token. T5 can be trained / fine-tuned both in a supervised and unsupervised fashi...
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/Users/nielsrogge/Documents/python_projecten/transformers/docs/source/en/model_doc/t5.md
https://huggingface.co/docs/transformers/en/model_doc/t5/#training
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language modeling head on top of the decoder. - Unsupervised denoising training In this setup, spans of the input sequence are masked by so-called sentinel tokens (*a.k.a* unique mask tokens) and the output sequence is formed as a concatenation of the same sentinel tokens and the *real* masked tokens. Each sentinel...
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`<extra_id_1>`, ... up to `<extra_id_99>`. As a default, 100 sentinel tokens are available in [`T5Tokenizer`]. For instance, the sentence "The cute dog walks in the park" with the masks put on "cute dog" and "the" should be processed as follows: ```python >>> from transformers import T5Tokenizer, T5ForConditionalGe...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#training
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small") >>> input_ids = tokenizer("The <extra_id_0> walks in <extra_id_1> park", return_tensors="pt").input_ids >>> labels = tokenizer("<extra_id_0> cute dog <extra_id_1> the <extra_id...
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https://huggingface.co/docs/transformers/en/model_doc/t5/#training
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>>> # the forward function automatically creates the correct decoder_input_ids >>> loss = model(input_ids=input_ids, labels=labels).loss >>> loss.item() 3.7837 ``` If you're interested in pre-training T5 on a new corpus, check out the [run_t5_mlm_flax.py](https://github.com/huggingface/transformers/tree/main/examples...
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directory. - Supervised training In this setup, the input sequence and output sequence are a standard sequence-to-sequence input-output mapping. Suppose that we want to fine-tune the model for translation for example, and we have a training example: the input sequence "The house is wonderful." and output sequence "...
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small") >>> input_ids = tokenizer("translate English to German: The house is wonderful.", return_tensors="pt").input_ids >>> labels = tokenizer("Das Haus ist wunderbar.", return_tensor...
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>>> # the forward function automatically creates the correct decoder_input_ids >>> loss = model(input_ids=input_ids, labels=labels).loss >>> loss.item() 0.2542 ``` As you can see, only 2 inputs are required for the model in order to compute a loss: `input_ids` (which are the `input_ids` of the encoded input sequence)...
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target sequence). The model will automatically create the `decoder_input_ids` based on the `labels`, by shifting them one position to the right and prepending the `config.decoder_start_token_id`, which for T5 is equal to 0 (i.e. the id of the pad token). Also note the task prefix: we prepend the input sequence with 'tr...
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during T5's pre-training. However, the example above only shows a single training example. In practice, one trains deep learning models in batches. This entails that we must pad/truncate examples to the same length. For encoder-decoder models, one typically defines a `max_source_length` and `max_target_length`, which...
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input and output sequences respectively (otherwise they are truncated). These should be carefully set depending on the task. In addition, we must make sure that padding token id's of the `labels` are not taken into account by the loss function. In PyTorch and Tensorflow, this can be done by replacing them with -100, ...
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of the `CrossEntropyLoss`. In Flax, one can use the `decoder_attention_mask` to ignore padded tokens from the loss (see the [Flax summarization script](https://github.com/huggingface/transformers/tree/main/examples/flax/summarization) for details). We also pass `attention_mask` as additional input to the model, which m...
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```python >>> from transformers import T5Tokenizer, T5ForConditionalGeneration >>> import torch
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small") >>> # the following 2 hyperparameters are task-specific >>> max_source_length = 512 >>> max_target_length = 128 >>> # Suppose we have the following 2 training examples: >>> in...
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>>> input_sequence_2 = "HuggingFace is a company" >>> output_sequence_2 = "HuggingFace est une entreprise" >>> # encode the inputs >>> task_prefix = "translate English to French: " >>> input_sequences = [input_sequence_1, input_sequence_2] >>> encoding = tokenizer( ... [task_prefix + sequence for sequence in inpu...
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>>> input_ids, attention_mask = encoding.input_ids, encoding.attention_mask >>> # encode the targets >>> target_encoding = tokenizer( ... [output_sequence_1, output_sequence_2], ... padding="longest", ... max_length=max_target_length, ... truncation=True, ... return_tensors="pt", ... ) >>> labels =...
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>>> # forward pass >>> loss = model(input_ids=input_ids, attention_mask=attention_mask, labels=labels).loss >>> loss.item() 0.188 ``` Additional training tips: - T5 models need a slightly higher learning rate than the default one set in the `Trainer` when using the AdamW optimizer. Typically, 1e-4 and 3e-4 work wel...
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answering, question generation). Note that T5 was pre-trained using the AdaFactor optimizer. According to [this forum post](https://discuss.huggingface.co/t/t5-finetuning-tips/684), task prefixes matter when (1) doing multi-task training (2) your task is similar or related to one of the supervised tasks used in T5's ...
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pre-training mixture (see Appendix D of the [paper](https://arxiv.org/pdf/1910.10683.pdf) for the task prefixes used). If training on TPU, it is recommended to pad all examples of the dataset to the same length or make use of *pad_to_multiple_of* to have a small number of predefined bucket sizes to fit all examples i...
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batches to the longest example is not recommended on TPU as it triggers a recompilation for every batch shape that is encountered during training thus significantly slowing down the training. only padding up to the longest example in a batch) leads to very slow training on TPU.
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At inference time, it is recommended to use [`~generation.GenerationMixin.generate`]. This method takes care of encoding the input and feeding the encoded hidden states via cross-attention layers to the decoder and auto-regressively generates the decoder output. Check out [this blog post](https://huggingface.co/blog/ho...
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There's also [this blog post](https://huggingface.co/blog/encoder-decoder#encoder-decoder) which explains how generation works in general in encoder-decoder models. ```python >>> from transformers import T5Tokenizer, T5ForConditionalGeneration
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small")
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>>> input_ids = tokenizer("translate English to German: The house is wonderful.", return_tensors="pt").input_ids >>> outputs = model.generate(input_ids) >>> print(tokenizer.decode(outputs[0], skip_special_tokens=True)) Das Haus ist wunderbar. ``` Note that T5 uses the `pad_token_id` as the `decoder_start_token_id`, s...
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[`~generation.GenerationMixin.generate`], make sure you start it with the `pad_token_id`. The example above only shows a single example. You can also do batched inference, like so: ```python >>> from transformers import T5Tokenizer, T5ForConditionalGeneration
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small") >>> task_prefix = "translate English to German: " >>> # use different length sentences to test batching >>> sentences = ["The house is wonderful.", "I like to work in NYC."] >...
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>>> inputs = tokenizer([task_prefix + sentence for sentence in sentences], return_tensors="pt", padding=True) >>> output_sequences = model.generate( ... input_ids=inputs["input_ids"], ... attention_mask=inputs["attention_mask"], ... do_sample=False, # disable sampling to test if batching affects output .....
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>>> print(tokenizer.batch_decode(output_sequences, skip_special_tokens=True)) ['Das Haus ist wunderbar.', 'Ich arbeite gerne in NYC.'] ``` Because T5 has been trained with the span-mask denoising objective, it can be used to predict the sentinel (masked-out) tokens during inference. The predicted tokens will then be ...
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>>> tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") >>> model = T5ForConditionalGeneration.from_pretrained("google-t5/t5-small") >>> input_ids = tokenizer("The <extra_id_0> walks in <extra_id_1> park", return_tensors="pt").input_ids >>> sequence_ids = model.generate(input_ids) >>> sequences = tokenizer....
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If you'd like a faster training and inference performance, install [NVIDIA APEX](https://github.com/NVIDIA/apex#quick-start) for NVIDIA GPUs, or [ROCm APEX](https://github.com/ROCmSoftwarePlatform/apex) for AMD GPUs and then the model will automatically use `apex.normalization.FusedRMSNorm` instead of `T5LayerNorm`. Th...
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A list of official Hugging Face and community (indicated by 🌎) resources to help you get started with T5. If you're interested in submitting a resource to be included here, please feel free to open a Pull Request and we'll review it! The resource should ideally demonstrate something new instead of duplicating an exist...
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<PipelineTag pipeline="text-classification"/> - A notebook for how to [finetune T5 for classification and multiple choice](https://colab.research.google.com/github/patil-suraj/exploring-T5/blob/master/t5_fine_tuning.ipynb). - A notebook for how to [finetune T5 for sentiment span extraction](https://colab.research.goo...
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<PipelineTag pipeline="token-classification"/> - A notebook for how to [finetune T5 for named entity recognition](https://colab.research.google.com/drive/1obr78FY_cBmWY5ODViCmzdY6O1KB65Vc?usp=sharing). 🌎 <PipelineTag pipeline="text-generation"/> - A notebook for [Finetuning CodeT5 for generating docstrings from ...
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<PipelineTag pipeline="summarization"/> - A notebook to [Finetune T5-base-dutch to perform Dutch abstractive summarization on a TPU](https://colab.research.google.com/github/NielsRogge/Transformers-Tutorials/blob/master/T5/Fine_tuning_Dutch_T5_base_on_CNN_Daily_Mail_for_summarization_(on_TPU_using_HuggingFace_Acceler...
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- A notebook for how to [finetune T5 for summarization in PyTorch and track experiments with WandB](https://colab.research.google.com/github/abhimishra91/transformers-tutorials/blob/master/transformers_summarization_wandb.ipynb#scrollTo=OKRpFvYhBauC). 🌎 - A blog post on [Distributed Training: Train BART/T5 for Summari...
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- [`T5ForConditionalGeneration`] is supported by this [example script](https://github.com/huggingface/transformers/tree/main/examples/pytorch/summarization) and [notebook](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/summarization.ipynb).
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- [`TFT5ForConditionalGeneration`] is supported by this [example script](https://github.com/huggingface/transformers/tree/main/examples/tensorflow/summarization) and [notebook](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/summarization-tf.ipynb). - [`FlaxT5ForConditionalGeneration`]...
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- [Summarization](https://huggingface.co/course/chapter7/5?fw=pt#summarization) chapter of the πŸ€— Hugging Face course. - [Summarization task guide](../tasks/summarization) <PipelineTag pipeline="fill-mask"/>
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- [`FlaxT5ForConditionalGeneration`] is supported by this [example script](https://github.com/huggingface/transformers/tree/main/examples/flax/language-modeling#t5-like-span-masked-language-modeling) for training T5 with a span-masked language model objective. The script also shows how to train a T5 tokenizer. [`FlaxT5...
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<PipelineTag pipeline="translation"/> - [`T5ForConditionalGeneration`] is supported by this [example script](https://github.com/huggingface/transformers/tree/main/examples/pytorch/translation) and [notebook](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/translation.ipynb).
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- [`TFT5ForConditionalGeneration`] is supported by this [example script](https://github.com/huggingface/transformers/tree/main/examples/tensorflow/translation) and [notebook](https://colab.research.google.com/github/huggingface/notebooks/blob/main/examples/translation-tf.ipynb). - [Translation task guide](../tasks/tran...
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- [Translation task guide](../tasks/translation) <PipelineTag pipeline="question-answering"/> - A notebook on how to [finetune T5 for question answering with TensorFlow 2](https://colab.research.google.com/github/snapthat/TF-T5-text-to-text/blob/master/snapthatT5/notebooks/TF-T5-Datasets%20Training.ipynb). 🌎 - A n...
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πŸš€ **Deploy** - A blog post on how to deploy [T5 11B for inference for less than $500](https://www.philschmid.de/deploy-t5-11b).
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This is the configuration class to store the configuration of a [`T5Model`] or a [`TFT5Model`]. It is used to instantiate a T5 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 T5 [google-t5/t5-s...
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Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the documentation from [`PretrainedConfig`] for more information. Arguments: vocab_size (`int`, *optional*, defaults to 32128): Vocabulary size of the T5 model. Defines the number of different tokens that can be...
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d_model (`int`, *optional*, defaults to 512): Size of the encoder layers and the pooler layer. d_kv (`int`, *optional*, defaults to 64): Size of the key, query, value projections per attention head. The `inner_dim` of the projection layer will be defined as `num_heads * d_kv`. d_ff (`int`, *optional*, defaults to 2048)...
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num_layers (`int`, *optional*, defaults to 6): Number of hidden layers in the Transformer encoder. num_decoder_layers (`int`, *optional*): Number of hidden layers in the Transformer decoder. Will use the same value as `num_layers` if not set. num_heads (`int`, *optional*, defaults to 8): Number of attention heads for e...
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relative_attention_num_buckets (`int`, *optional*, defaults to 32): The number of buckets to use for each attention layer. relative_attention_max_distance (`int`, *optional*, defaults to 128): The maximum distance of the longer sequences for the bucket separation. dropout_rate (`float`, *optional*, defaults to 0.1): Th...
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The dropout ratio for classifier. layer_norm_eps (`float`, *optional*, defaults to 1e-6): The epsilon used by the layer normalization layers. initializer_factor (`float`, *optional*, defaults to 1): A factor for initializing all weight matrices (should be kept to 1, used internally for initialization testing). feed_for...
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Type of feed forward layer to be used. Should be one of `"relu"` or `"gated-gelu"`. T5v1.1 uses the `"gated-gelu"` feed forward projection. Original T5 uses `"relu"`. use_cache (`bool`, *optional*, defaults to `True`): Whether or not the model should return the last key/values attentions (not used by all models).
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Construct a T5 tokenizer. Based on [SentencePiece](https://github.com/google/sentencepiece). This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to this superclass for more information regarding those methods. Args: vocab_file (`str`): [SentencePiece](htt...
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contains the vocabulary necessary to instantiate a tokenizer. eos_token (`str`, *optional*, defaults to `"</s>"`): The end of sequence token. <Tip> When building a sequence using special tokens, this is not the token that is used for the end of sequence. The token used is the `sep_token`. </Tip> unk_token (`str...
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The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this token instead. pad_token (`str`, *optional*, defaults to `"<pad>"`): The token used for padding, for example when batching sequences of different lengths. extra_ids (`int`, *optional*, defaults to 100): Add a num...
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