由于通用的系统能够执行许多不同的任务,因此其条件概率分布不仅应根据输入条件化,还应根据任务条件化,即: p(output|input,task) 过去的研究常常在架构层面实现,比如任务特定的编解码器;或者在算法层面实现,比如内循环和外循环的优化框架。但语言本身的灵活性提供了更简单的实现方式,比如: 翻译任务:"请翻译以下英语...
论文链接:Language Models are Unsupervised Multitask Learners 出版日期:2019年 关键词:预训练模型、Transformer、自注意力机制、多任务学习、零样本学习、语言理解、GPT-2 一、研究动机 GPT-1 和 BERT 都是先在大量无标签数据上预训练语言模型,然后在每个下游任务上进行有监督的微调,但是存在一些问题。1.对于下游的...
既然我们已经对GPT-2有了初步的认识,那么现在就让我们更深入地了解一下它背后的两个核心概念:多任务学习(Multitask Learning)和无监督学习(Unsupervised Learning)。这两个概念在使GPT-2成为强大的语言模型中发挥着至关重要的作用。 多任务学习(Multitask Learning)首先,让我们想象一个全能运动员,比如诸如田径十项全...
简介:[GPT-2]论文解读:Language Models are Unsupervised Multitask Learners 论文:Language Models are Unsupervised Multitask Learners 作者:Alec Radford, Jeff Wu, Rewon Child, D. Luan, Dario Amodei, I. Sutskever 时间:2019 介绍 GPT-2 是一个有15亿参数的模型,GPT-2的想法是转向一个通用的系统,不需要...
(2018)demon-strated it was possible to train a single model, the MQAN,Language Models are Unsupervised Multitask Learners to infer and perform many different tasks on examples with this type of format. Language modeling is also able to, in principle, learn the tasks of McCann et al. (...
Code and models from the paper "Language Models are Unsupervised Multitask Learners". You can read about GPT-2 and its staged release in our original blog post, 6 month follow-up post, and final post. We have also released a dataset for researchers to study their behaviors. * Note that ...
A. Radford et al., “Language models are unsupervised multitask learners,” OpenAI blog, vol. 1, no. 8, p. 9, 2019. 1.1 背景 OpenAI在18、19与20年接连发布了GPT三部曲,其模型分别被称为GPT-1 、GPT-2 和GPT-3。其中GPT-1借鉴CV领域的预训练思路,基于Transformer模型的解码器,实现了利用无标...
et al. Language models are unsupervised multitask learners. OpenAI blog 1, 9 (2019). Jain, S. & Huth, A. Incorporating context into language encoding models for fMRI. in Proc. 32nd International Conf. Neural Information Processing Systems (eds Bengio, S. et al.) (Curran Associates, 2018...
Code and models from the paper"Language Models are Unsupervised Multitask Learners". You can read about GPT-2 and its staged release in ouroriginal blog post,6 month follow-up post, andfinal post. We have alsoreleased a datasetfor researchers to study their behaviors. ...
et al. Language models are unsupervised multitask learners. Preprint at OpenAI https://cdn.openai.com/better-language-models/language_models_are_unsupervised_multitask_learners.pdf (2019). Brown, T. et al. Language models are few-shot learners. Adv. Neural Inf. Process. Syst. 33, 1877–...