Survey - Pre-Trained Models - Past, Present and Future
Links: https://arxiv.org/abs/2106.07139 最新出炉的 Pre-Trained Models 综述速览。 先确定综述中的一些名词的定义 Transfer learning:迁移学习,一种用于应对机器学习中的data hungry问题的方法,是有监督的 Self-Supervised Learning:自监督学习,也用于应对机器学习中的data hungry问题,特别是针对完全没有标注的数据,可以通过某种方式以数据自身为标签进行学习(比如language modeling)。所以和无监督学习有异曲同工之处。 一般我们说无监督主要集中于clustering, community discovery, and anomaly detection等模式识别问题 而self-supervised learning还是在监督学习的范畴,集中于classification and generation等问题 Pre-trained models (PTMs) :预训练模型,Pre-training是一种具体的训练方案,可以采用transfer learning或者Self-Supervised Learning方法 2 Background 脉络图谱 Pre-training 可分为两大类: 2.1 Transfer Learning and Supervised Pre-Training 此类可进一步细分为 feature transfer 和 parameter transfer. 2.2 Self-Supervised Learning and Self-Supervised Pre-Training Transfer learning 可细分为四个子类 inductive transfer learning (Lawrence and Platt, 2004; Mihalkova et al., 2007; Evgeniou and Pontil, 2007), transductive transfer learning (Shimodaira, 2000; Zadrozny,2004; Daume III and Marcu, 2006), self-taught learning (Raina et al....