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Masked image modeling has been demonstrated as a powerful pretext task for generating robust representations that can be effectively generalized across multiple downstream tasks. Typically, this approach involves randomly masking patches…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Neelu Madan , Nicolae-Catalin Ristea , Kamal Nasrollahi , Thomas B. Moeslund , Radu Tudor Ionescu

We introduce the concept of a Modular Autoencoder (MAE), capable of learning a set of diverse but complementary representations from unlabelled data, that can later be used for supervised tasks. The learning of the representations is…

机器学习 · 计算机科学 2015-11-24 Henry W J Reeve , Gavin Brown

We present a neural semi-supervised learning model termed Self-Pretraining. Our model is inspired by the classic self-training algorithm. However, as opposed to self-training, Self-Pretraining is threshold-free, it can potentially update…

计算与语言 · 计算机科学 2021-10-01 Payam Karisani , Negin Karisani

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

Deep anomaly detection methods have become increasingly popular in recent years, with methods like Stacked Autoencoders, Variational Autoencoders, and Generative Adversarial Networks greatly improving the state-of-the-art. Other methods…

计算与语言 · 计算机科学 2024-01-09 Andrei Manolache

In this paper, we propose a novel reference based image super-resolution approach via Variational AutoEncoder (RefVAE). Existing state-of-the-art methods mainly focus on single image super-resolution which cannot perform well on large…

计算机视觉与模式识别 · 计算机科学 2021-06-09 Zhi-Song Liu , Wan-Chi Siu , Li-Wen Wang

Self-supervised audio representation learning offers an attractive alternative for obtaining generic audio embeddings, capable to be employed into various downstream tasks. Published approaches that consider both audio and words/tags…

声音 · 计算机科学 2020-10-28 Xavier Favory , Konstantinos Drossos , Tuomas Virtanen , Xavier Serra

In this paper, we propose Normality-Calibrated Autoencoder (NCAE), which can boost anomaly detection performance on the contaminated datasets without any prior information or explicit abnormal samples in the training phase. The NCAE…

机器学习 · 计算机科学 2021-10-29 Jongmin Yu , Hyeontaek Oh , Minkyung Kim , Junsik Kim

Image processing, including image restoration, image enhancement, etc., involves generating a high-quality clean image from a degraded input. Deep learning-based methods have shown superior performance for various image processing tasks in…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Huiyu Duan , Xiongkuo Min , Sijing Wu , Wei Shen , Guangtao Zhai

Multi-modal data in Earth Observation (EO) presents a huge opportunity for improving transfer learning capabilities when pre-training deep learning models. Unlike prior work that often overlooks multi-modal EO data, recent methods have…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Jose Sosa , Danila Rukhovich , Anis Kacem , Djamila Aouada

Graphs are ubiquitous in real-world scenarios and encompass a diverse range of tasks, from node-, edge-, and graph-level tasks to transfer learning. However, designing specific tasks for each type of graph data is often costly and lacks…

机器学习 · 计算机科学 2024-03-22 Yulan Hu , Sheng Ouyang , Zhirui Yang , Ge Chen , Junchen Wan , Xiao Wang , Yong Liu

Autoencoders are a type of unsupervised neural networks, which can be used to solve various tasks, e.g., dimensionality reduction, image compression, and image denoising. An AE has two goals: (i) compress the original input to a…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Firas Laakom , Jenni Raitoharju , Alexandros Iosifidis , Moncef Gabbouj

Detecting anomalies for multivariate time-series without manual supervision continues a challenging problem due to the increased scale of dimensions and complexity of today's IT monitoring systems. Recent progress of unsupervised…

机器学习 · 计算机科学 2021-10-19 Qinfeng Xiao , Shikuan Shao , Jing Wang

Graph self-supervised learning seeks to learn effective graph representations without relying on labeled data. Among various approaches, graph autoencoders (GAEs) have gained significant attention for their efficiency and scalability.…

机器学习 · 计算机科学 2025-06-17 Yang Liu , Deyu Bo , Wenxuan Cao , Yuan Fang , Yawen Li , Chuan Shi

Pre-training strategies based on self-supervised learning (SSL) have proven to be effective pretext tasks for many downstream tasks in computer vision. Due to the significant disparity between medical and natural images, the application of…

In this paper, we propose Language-Guided Contrastive Audio-Visual Masked Autoencoders (LG-CAV-MAE) to improve audio-visual representation learning. LG-CAV-MAE integrates a pretrained text encoder into contrastive audio-visual masked…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Yuchi Ishikawa , Shota Nakada , Hokuto Munakata , Kazuhiro Saito , Tatsuya Komatsu , Yoshimitsu Aoki

Text classification aims to effectively categorize documents into pre-defined categories. Traditional methods for text classification often rely on large amounts of manually annotated training data, making the process time-consuming and…

计算与语言 · 计算机科学 2023-11-02 Daniel Hajialigol , Hanwen Liu , Xuan Wang

Intent classification (IC) plays an important role in task-oriented dialogue systems. However, IC models often generalize poorly when training without sufficient annotated examples for each user intent. We propose a novel pre-training…

计算与语言 · 计算机科学 2023-11-15 Mujeen Sung , James Gung , Elman Mansimov , Nikolaos Pappas , Raphael Shu , Salvatore Romeo , Yi Zhang , Vittorio Castelli

Unsupervised text attribute transfer automatically transforms a text to alter a specific attribute (e.g. sentiment) without using any parallel data, while simultaneously preserving its attribute-independent content. The dominant approaches…

计算与语言 · 计算机科学 2019-12-13 Ke Wang , Hang Hua , Xiaojun Wan

We propose a new self-supervised method for pre-training the backbone of deep perception models operating on point clouds. The core idea is to train the model on a pretext task which is the reconstruction of the surface on which the 3D…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Alexandre Boulch , Corentin Sautier , Björn Michele , Gilles Puy , Renaud Marlet