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Deep neural networks have been shown as a class of useful tools for addressing signal recognition issues in recent years, especially for identifying the nonlinear feature structures of signals. However, this power of most deep learning…

机器学习 · 计算机科学 2021-06-15 Yihong Dong , Ying Peng , Muqiao Yang , Songtao Lu , Qingjiang Shi

Model Agnostic Meta-Learning (MAML) has emerged as a standard framework for meta-learning, where a meta-model is learned with the ability of fast adapting to new tasks. However, as a double-looped optimization problem, MAML needs to…

机器学习 · 计算机科学 2021-02-10 Yufan Zhou , Zhenyi Wang , Jiayi Xian , Changyou Chen , Jinhui Xu

Although model-agnostic meta-learning (MAML) is a very successful algorithm in meta-learning practice, it can have high computational cost because it updates all model parameters over both the inner loop of task-specific adaptation and the…

机器学习 · 计算机科学 2020-10-26 Kaiyi Ji , Jason D. Lee , Yingbin Liang , H. Vincent Poor

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

机器学习 · 计算机科学 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

Learning new tasks by drawing on prior experience gathered from other (related) tasks is a core property of any intelligent system. Gradient-based meta-learning, especially MAML and its variants, has emerged as a viable solution to…

机器学习 · 计算机科学 2024-09-06 El Mahdi Chayti , Martin Jaggi

Model-agnostic meta-learning (MAML) has been recently put forth as a strategy to learn resource-poor languages in a sample-efficient fashion. Nevertheless, the properties of these languages are often not well represented by those available…

计算与语言 · 计算机科学 2021-06-03 Edoardo Maria Ponti , Rahul Aralikatte , Disha Shrivastava , Siva Reddy , Anders Søgaard

Self-Supervised Contrastive Learning has proven effective in deriving high-quality representations from unlabeled data. However, a major challenge that hinders both unimodal and multimodal contrastive learning is feature suppression, a…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Jihai Zhang , Xiang Lan , Xiaoye Qu , Yu Cheng , Mengling Feng , Bryan Hooi

Detecting anomalies is one fundamental aspect of a safety-critical software system, however, it remains a long-standing problem. Numerous branches of works have been proposed to alleviate the complication and have demonstrated their…

机器学习 · 计算机科学 2023-01-31 Hyunsoo Cho , Jinseok Seol , Sang-goo Lee

We propose a new computationally-efficient first-order algorithm for Model-Agnostic Meta-Learning (MAML). The key enabling technique is to interpret MAML as a bilevel optimization (BLO) problem and leverage the sign-based SGD(signSGD) as a…

机器学习 · 计算机科学 2021-12-22 Chen Fan , Parikshit Ram , Sijia Liu

Meta-learning methods have shown an impressive ability to train models that rapidly learn new tasks. However, these methods only aim to perform well in expectation over tasks coming from some particular distribution that is typically…

机器学习 · 计算机科学 2020-06-22 Liam Collins , Aryan Mokhtari , Sanjay Shakkottai

Model-Agnostic Meta-Learning (MAML) and its variants have achieved success in meta-learning tasks on many datasets and settings. On the other hand, we have just started to understand and analyze how they are able to adapt fast to new tasks.…

机器学习 · 计算机科学 2021-01-26 Sébastien M. R. Arnold , Shariq Iqbal , Fei Sha

In few-shot learning scenarios, the challenge is to generalize and perform well on new unseen examples when only very few labeled examples are available for each task. Model-agnostic meta-learning (MAML) has gained the popularity as one of…

机器学习 · 计算机科学 2021-10-19 Sungyong Baik , Janghoon Choi , Heewon Kim , Dohee Cho , Jaesik Min , Kyoung Mu Lee

Natural language understanding(NLU) is challenging for finance due to the lack of annotated data and the specialized language in that domain. As a result, researchers have proposed to use pre-trained language model and multi-task learning…

计算与语言 · 计算机科学 2023-03-28 Bixing Yan , Shaoling Chen , Yuxuan He , Zhihan Li

The continual learning problem involves training models with limited capacity to perform well on a set of an unknown number of sequentially arriving tasks. While meta-learning shows great potential for reducing interference between old and…

机器学习 · 计算机科学 2020-11-13 Gunshi Gupta , Karmesh Yadav , Liam Paull

We present a collaborative learning method called Mutual Contrastive Learning (MCL) for general visual representation learning. The core idea of MCL is to perform mutual interaction and transfer of contrastive distributions among a cohort…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Chuanguang Yang , Zhulin An , Linhang Cai , Yongjun Xu

Model Agnostic Meta Learning (MAML) is widely used to find a good initialization for a family of tasks. Despite its success, a critical challenge in MAML is to calculate the gradient w.r.t. the initialization of a long training trajectory…

机器学习 · 计算机科学 2023-02-27 Shibo Li , Zheng Wang , Akil Narayan , Robert Kirby , Shandian Zhe

Session-based recommendation aims to predict intents of anonymous users based on limited behaviors. With the ability in alleviating data sparsity, contrastive learning is prevailing in the task. However, we spot that existing contrastive…

信息检索 · 计算机科学 2025-06-06 Xiaokun Zhang , Bo Xu , Fenglong Ma , Zhizheng Wang , Liang Yang , Hongfei Lin

Deep learning models require a large amount of data to perform well. When data is scarce for a target task, we can transfer the knowledge gained by training on similar tasks to quickly learn the target. A successful approach is…

机器学习 · 计算机科学 2021-03-18 Alberto Bernacchia

Meta-learning allows an intelligent agent to leverage prior learning episodes as a basis for quickly improving performance on a novel task. Bayesian hierarchical modeling provides a theoretical framework for formalizing meta-learning as…

机器学习 · 计算机科学 2018-01-29 Erin Grant , Chelsea Finn , Sergey Levine , Trevor Darrell , Thomas Griffiths

Model checking is a key technique for verifying safety-critical systems against formal specifications, where recent applications of deep learning have shown promise. However, while ubiquitous for vision and language domains, representation…

机器学习 · 计算机科学 2025-10-07 Vladimir Krsmanovic , Matthias Cosler , Mohamed Ghanem , Bernd Finkbeiner