Matthew E. Peters, Mark Neumann, Mohit Iyyer
Matt Gardner, Christopher Clark, Kenton Lee, Luke Zettlemoyer
2018 · arXiv
We introduce a new type of deep contextualized word representation that models both (1) complex characteristics of word use (e.g., syntax and semantics), and (2) how these uses vary across linguistic contexts (i.e., to model polysemy). Our word vectors are learned functions of the internal states of a deep bidirectional language model (biLM), which is pre-trained on a large text corpus. We show that these representations can be easily added to existing models and significantly improve the state of the art across six challenging NLP problems, including question answering, textual entailment and sentiment analysis. We also present an analysis showing that exposing the deep internals of the pre-trained network is crucial, allowing downstream models to mix different types of semi-supervision signals.
Metadata: arXiv. Abstracts retain their original authors’ rights.
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4 selected excerpts · 4 total mentions
There was actually a series of language models named after Sesame Street characters back in 2018-2020, starting with ELMo, then BERT, ERNIE (a different model from 2019), Big Bird, ... There are likely some more that I missed. ELMo: https://arxiv.org/abs/1802.05365 BERT: https://arxiv.org/abs/1810.04805 ERNIE: https://arxiv.org/abs/1904.09223v1 Big Bird: https://arxiv.org/abs/2007.14062
I posted a list of papers on twitter, and will be posting a summary for each of them as well. here is the list https://twitter.com/vrungta/status/1623343807227105280 Unlocking the Secrets of AI: A Journey through the Foundational Papers by @vrungta (2023) 1. "Attention is All You Need" (2017) - https://arxiv.org/abs/1706.03762 (Google Brain) 2. "Generative Adversarial Networks" (2014) - https://arxiv.org/abs/1406.2661 (University of Montreal) 3. "Dynamic Routing Between Capsules" (2017) - https://arxiv.org/abs/1710.09829 (Google Brain) 4. "Unsupervised Representation Learning with Deep Convolutional Generative Adversarial Networks" (2016) -…
https://arxiv.org/abs/1511.06434 (University of Montreal) 5. "ImageNet Classification with Deep Convolutional Neural Networks" (2012) - https://papers.nips.cc/paper/4824-imagenet-classification-wi... (University of Toronto) 6. "BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding" (2018) - https://arxiv.org/abs/1810.04805 (Google) 7. "RoBERTa: A Robustly Optimized BERT Pretraining Approach" (2019) - https://arxiv.org/abs/1907.11692 (Facebook AI) 8. "ELMo: Deep contextualized word representations" (2018) - https://arxiv.org/abs/1802.05365 (Allen Institute for Artificial Intelligence) 9. "Transformer-XL: Attentive Language Models Beyond a Fixed-Length Context" (2019) - https://arxiv.org/abs/1901.02860 (Google AI Language) 10. "XLNet: Generalized Autoregressive Pretraining for Language Understanding" (2019) - https://arxiv.org/abs/1906.08237 (Google AI Language) 11. T5: Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer" (2020) - https://arxiv.org/abs/1910.10683 (Google Research) 12. "Language Models are Few-Shot Learners" (2021) - https://arxiv.org/abs/2005.14165 (OpenAI)
These guys have done what looks like an impressive amount of work... but I was disappointed to see there's no mention of generative language modeling at all and only a very brief mention of key advances in image generation over the past few years. Examples of generative language modeling ignored by this paper (not even mentioned): * Unsupervised Transformer - https://blog.openai.com/language-unsupervised/ * ELMo - https://arxiv.org/abs/1802.05365 * ULMFit - https://arxiv.org/abs/1801.06146 Examples of generative image modeling ignored by this paper (some are mentioned only in passing): * Glow - https://blog.openai.com/glow/ * RealNVP - https://arxiv.org/abs/1605.08803 * NICE - https://arxiv.org/abs/1410.8516 * Pixel CNN - https://arxiv.org/abs/1606.05328 (and its cousin PixelRNN - https://arxiv.org/abs/1601.06759)
There's a long list of papers on that - 'multi-sense word embeddings'. But more recently we have found that passing the raw character embeddings through a two layer BiLSTM will resolve the ambiguity of meaning from context - 'ElMO'. https://arxiv.org/abs/1802.05365 (state of the art)
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