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A major goal of unsupervised learning is to discover data representations that are useful for subsequent tasks, without access to supervised labels during training. Typically, this involves minimizing a surrogate objective, such as the…

机器学习 · 计算机科学 2019-02-27 Luke Metz , Niru Maheswaranathan , Brian Cheung , Jascha Sohl-Dickstein

One paradigm for learning from few labeled examples while making best use of a large amount of unlabeled data is unsupervised pretraining followed by supervised fine-tuning. Although this paradigm uses unlabeled data in a task-agnostic way,…

机器学习 · 计算机科学 2020-10-27 Ting Chen , Simon Kornblith , Kevin Swersky , Mohammad Norouzi , Geoffrey Hinton

Multi-task Learning (MTL) for classification with disjoint datasets aims to explore MTL when one task only has one labeled dataset. In existing methods, for each task, the unlabeled datasets are not fully exploited to facilitate this task.…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Yan Hong , Li Niu , Jianfu Zhang , Liqing Zhang

Semi-supervised learning is a challenging problem which aims to construct a model by learning from a limited number of labeled examples. Numerous methods have been proposed to tackle this problem, with most focusing on utilizing the…

计算机视觉与模式识别 · 计算机科学 2021-07-02 Peng Tu , Yawen Huang , Rongrong Ji , Feng Zheng , Ling Shao

Spoken language understanding (SLU) treats automatic speech recognition (ASR) and natural language understanding (NLU) as a unified task and usually suffers from data scarcity. We exploit an ASR and NLU joint training method based on meta…

音频与语音处理 · 电气工程与系统科学 2022-06-28 Yingying Gao , Junlan Feng , Chao Deng , Shilei Zhang

Graph convolutional networks produce good predictions of unlabeled samples due to its transductive label propagation. Since samples have different predicted confidences, we take high-confidence predictions as pseudo labels to expand the…

机器学习 · 计算机科学 2020-09-07 Kun Zhan , Chaoxi Niu

Neural network-based anomaly detection methods have shown to achieve high performance. However, they require a large amount of training data for each task. We propose a neural network-based meta-learning method for supervised anomaly…

机器学习 · 统计学 2021-03-02 Tomoharu Iwata , Atsutoshi Kumagai

Training neural networks with auxiliary tasks is a common practice for improving the performance on a main task of interest. Two main challenges arise in this multi-task learning setting: (i) designing useful auxiliary tasks; and (ii)…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Aviv Navon , Idan Achituve , Haggai Maron , Gal Chechik , Ethan Fetaya

Learning from data sequentially arriving, possibly in a non i.i.d. way, with changing task distribution over time is called continual learning. Much of the work thus far in continual learning focuses on supervised learning and some recent…

机器学习 · 计算机科学 2021-10-06 Dhanajit Brahma , Vinay Kumar Verma , Piyush Rai

Despite the recent advances in multi-task learning of dense prediction problems, most methods rely on expensive labelled datasets. In this paper, we present a label efficient approach and look at jointly learning of multiple dense…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Wei-Hong Li , Xialei Liu , Hakan Bilen

Self-supervised pre-training of transformer models has shown enormous success in improving performance on a number of downstream tasks. However, fine-tuning on a new task still requires large amounts of task-specific labelled data to…

计算与语言 · 计算机科学 2020-11-17 Trapit Bansal , Rishikesh Jha , Andrew McCallum

In this paper, we propose a method for training neural networks when we have a large set of data with weak labels and a small amount of data with true labels. In our proposed model, we train two neural networks: a target network, the…

机器学习 · 统计学 2017-12-01 Mostafa Dehghani , Aliaksei Severyn , Sascha Rothe , Jaap Kamps

The human ability to synchronize the feedback from all their senses inspired recent works in multi-task and multi-modal learning. While these works rely on expensive supervision, our multi-task graph requires only pseudo-labels from expert…

机器学习 · 计算机科学 2021-11-05 Emanuela Haller , Elena Burceanu , Marius Leordeanu

Meta-learning algorithms use past experience to learn to quickly solve new tasks. In the context of reinforcement learning, meta-learning algorithms acquire reinforcement learning procedures to solve new problems more efficiently by…

机器学习 · 计算机科学 2020-05-01 Abhishek Gupta , Benjamin Eysenbach , Chelsea Finn , Sergey Levine

We study the problem of large scale, multi-label visual recognition with a large number of possible classes. We propose a method for augmenting a trained neural network classifier with auxiliary capacity in a manner designed to…

机器学习 · 统计学 2015-04-15 David Warde-Farley , Andrew Rabinovich , Dragomir Anguelov

Multi-task learning (MTL) aims to improve the generalization of several related tasks by learning them jointly. As a comparison, in addition to the joint training scheme, modern meta-learning allows unseen tasks with limited labels during…

机器学习 · 计算机科学 2021-06-17 Haoxiang Wang , Han Zhao , Bo Li

The label-embedded dictionary learning (DL) algorithms generate influential dictionaries by introducing discriminative information. However, there exists a limitation: All the label-embedded DL methods rely on the labels due that this way…

机器学习 · 计算机科学 2021-12-06 Shuai Shao , Lei Xing , Wei Yu , Rui Xu , Yanjiang Wang , Baodi Liu

In many real-world scenarios, labeled data for a specific machine learning task is costly to obtain. Semi-supervised training methods make use of abundantly available unlabeled data and a smaller number of labeled examples. We propose a new…

计算机视觉与模式识别 · 计算机科学 2017-06-06 Philip Häusser , Alexander Mordvintsev , Daniel Cremers

Meta-learning considers the problem of learning an efficient learning process that can leverage its past experience to accurately solve new tasks. However, the efficacy of meta-learning crucially depends on the distribution of tasks…

计算与语言 · 计算机科学 2021-11-03 Trapit Bansal , Karthick Gunasekaran , Tong Wang , Tsendsuren Munkhdalai , Andrew McCallum

We present a novel data-efficient semi-supervised framework to improve the generalization of image captioning models. Constructing a large-scale labeled image captioning dataset is an expensive task in terms of labor, time, and cost. In…

计算机视觉与模式识别 · 计算机科学 2023-01-27 Dong-Jin Kim , Tae-Hyun Oh , Jinsoo Choi , In So Kweon