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Data-driven fault diagnostics of safety-critical systems often faces the challenge of a complete lack of labeled data associated with faulty system conditions (i.e., fault types) at training time. Since an unknown number and nature of fault…

机器学习 · 计算机科学 2020-10-01 Manuel Arias Chao , Bryan T. Adey , Olga Fink

Supervised fine-tuning methods (SFT) perform great efficiency on artificial intelligence interpretation in SAR images, leveraging the powerful representation knowledge from pre-training models. Due to the lack of domain-specific pre-trained…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Xinyang Pu , Feng Xu

In classification problems, supervised machine-learning methods outperform traditional algorithms, thanks to the ability of neural networks to learn complex patterns. However, in two-class classification tasks like anomaly or fraud…

机器学习 · 计算机科学 2022-04-01 Mihai-Cezar Augustin , Vivien Bonvin , Regis Houssou , Efstratios Rappos , Stephan Robert-Nicoud

Masked auto-encoder pre-training has emerged as a prevalent technique for initializing and enhancing dense retrieval systems. It generally utilizes additional Transformer decoder blocks to provide sustainable supervision signals and…

信息检索 · 计算机科学 2024-04-23 Guangyuan Ma , Xing Wu , Zijia Lin , Songlin Hu

This paper aims to develop a new and robust approach to feature representation. Motivated by the success of Auto-Encoders, we first theoretical summarize the general properties of all algorithms that are based on traditional Auto-Encoders:…

机器学习 · 计算机科学 2018-10-24 Zeng Yu , Tianrui Li , Ning Yu , Yi Pan , Hongmei Chen , Bing Liu

Fair representation learning aims to encode invariant representation with respect to the protected attribute, such as gender or age. In this paper, we design Fairness-aware Disentangling Variational AutoEncoder (FD-VAE) for fair…

机器学习 · 计算机科学 2020-07-09 Sungho Park , Dohyung Kim , Sunhee Hwang , Hyeran Byun

The process of tuning the size of the hidden layers for autoencoders has the benefit of providing optimally compressed representations for the input data. However, such hyper-parameter tuning process would take a lot of computation and time…

机器学习 · 计算机科学 2025-07-08 Sarthak Ketanbhai Modi , Zi Pong Lim , Yushi Cao , Yupeng Cheng , Yon Shin Teo , Shang-Wei Lin

Learning from heterogeneous data poses challenges such as combining data from various sources and of different types. Meanwhile, heterogeneous data are often associated with missingness in real-world applications due to heterogeneity and…

机器学习 · 计算机科学 2021-02-26 Yu Gong , Hossein Hajimirsadeghi , Jiawei He , Thibaut Durand , Greg Mori

We present a novel masked image modeling (MIM) approach, context autoencoder (CAE), for self-supervised representation pretraining. We pretrain an encoder by making predictions in the encoded representation space. The pretraining tasks…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Xiaokang Chen , Mingyu Ding , Xiaodi Wang , Ying Xin , Shentong Mo , Yunhao Wang , Shumin Han , Ping Luo , Gang Zeng , Jingdong Wang

Although semi-supervised variational autoencoder (SemiVAE) works in image classification task, it fails in text classification task if using vanilla LSTM as its decoder. From a perspective of reinforcement learning, it is verified that the…

计算与语言 · 计算机科学 2016-11-28 Weidi Xu , Haoze Sun , Chao Deng , Ying Tan

Variational auto-encoders (VAEs) provide an attractive solution to image generation problem. However, they tend to produce blurred and over-smoothed images due to their dependence on pixel-wise reconstruction loss. This paper introduces a…

计算机视觉与模式识别 · 计算机科学 2018-04-30 Salman H. Khan , Munawar Hayat , Nick Barnes

Self-supervised tasks have been utilized to build useful representations that can be used in downstream tasks when the annotation is unavailable. In this paper, we introduce a self-supervised video representation learning method based on…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Duc Quang Vu , Ngan T. H. Le , Jia-Ching Wang

Modeling and controlling complex spatiotemporal dynamical systems driven by partial differential equations (PDEs) often necessitate dimensionality reduction techniques to construct lower-order models for computational efficiency. This paper…

系统与控制 · 电气工程与系统科学 2024-09-12 Priyabrata Saha , Saibal Mukhopadhyay

Open world object detection aims at detecting objects that are absent in the object classes of the training data as unknown objects without explicit supervision. Furthermore, the exact classes of the unknown objects must be identified…

计算机视觉与模式识别 · 计算机科学 2022-12-07 Na Dong , Yongqiang Zhang , Mingli Ding , Gim Hee Lee

Learning useful representations with little or no supervision is a key challenge in artificial intelligence. We provide an in-depth review of recent advances in representation learning with a focus on autoencoder-based models. To organize…

机器学习 · 计算机科学 2018-12-13 Michael Tschannen , Olivier Bachem , Mario Lucic

Self-supervised representation learning methods aim to provide powerful deep feature learning without the requirement of large annotated datasets, thus alleviating the annotation bottleneck that is one of the main barriers to practical…

机器学习 · 计算机科学 2022-05-18 Linus Ericsson , Henry Gouk , Chen Change Loy , Timothy M. Hospedales

Deep neural networks have made breakthroughs in a wide range of visual understanding tasks. A typical challenge that hinders their real-world applications is that unknown samples may be fed into the system during the testing phase, but…

计算机视觉与模式识别 · 计算机科学 2021-02-10 Xin Sun , Chi Zhang , Guosheng Lin , Keck-Voon Ling

Unsupervised Domain Adaptive Object Detection (UDA-OD) uses unlabelled data to improve the reliability of robotic vision systems in open-world environments. Previous approaches to UDA-OD based on self-training have been effective in…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Nicolas Harvey Chapman , Feras Dayoub , Will Browne , Christopher Lehnert

Sparse autoencoders (SAEs) provide a powerful mechanism for decomposing the dense representations produced by Large Language Models (LLMs) into interpretable latent features. We posit that SAEs constitute a natural foundation for Learned…

机器学习 · 计算机科学 2026-03-17 Thibault Formal , Maxime Louis , Hervé Dejean , Stéphane Clinchant

Finding an interpretable non-redundant representation of real-world data is one of the key problems in Machine Learning. Biological neural networks are known to solve this problem quite well in unsupervised manner, yet unsupervised…

机器学习 · 计算机科学 2020-10-13 Denis Kuzminykh , Laida Kushnareva , Timofey Grigoryev , Alexander Zatolokin