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Self-supervised learning (SSL) methods such as masked language modeling have shown massive performance gains by pretraining transformer models for a variety of natural language processing tasks. The follow-up research adapted similar…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Gokul Karthik Kumar , Sahal Shaji Mullappilly , Abhishek Singh Gehlot

Self-supervised methods have shown remarkable progress in learning high-level semantics and low-level temporal correspondence. Building on these results, we take one step further and explore the possibility of integrating these two features…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Rui Qian , Shuangrui Ding , Xian Liu , Dahua Lin

This paper presents a novel framework to build a voice conversion (VC) system by learning from a text-to-speech (TTS) synthesis system, that is called TTS-VC transfer learning. We first develop a multi-speaker speech synthesis system with…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-07 Mingyang Zhang , Yi Zhou , Li Zhao , Haizhou Li

For Multivariate Time Series Forecasting (MTSF), recent deep learning applications show that univariate models frequently outperform multivariate ones. To address the difficiency in multivariate models, we introduce a method to Construct…

Machine Learning · Statistics 2026-02-06 Jiecheng Lu , Xu Han , Yan Sun , Shihao Yang

Multi-mode tensor time series (TTS) can be found in many domains, such as search engines and environmental monitoring systems. Learning representations of a TTS benefits various applications, but it is also challenging since the…

Machine Learning · Computer Science 2026-03-02 Kohei Obata , Taichi Murayama , Zheng Chen , Yasuko Matsubara , Yasushi Sakurai

Learning transferable representations from unlabeled time series is crucial for improving performance in data-scarce classification. Existing self-supervised methods often operate at the point level and rely on unidirectional encoding,…

Machine Learning · Computer Science 2026-03-02 Mingyue Cheng , Xiaoyu Tao , Zhiding Liu , Qi Liu , Hao Zhang , Rujiao Zhang , Enhong Chen

In the domain of multivariate time series analysis, the concept of channel independence has been increasingly adopted, demonstrating excellent performance due to its ability to eliminate noise and the influence of irrelevant variables.…

Machine Learning · Computer Science 2024-12-18 Haoxin Wang , Yipeng Mo , Kunlan Xiang , Nan Yin , Honghe Dai , Bixiong Li , Songhai Fan , Site Mo

With the growing complexity of Cyber-Physical Systems (CPS) and the integration of Internet of Things (IoT), the use of sensors for online monitoring generates large volume of multivariate time series (MTS) data. Consequently, the need for…

Machine Learning · Computer Science 2026-02-04 Charalampos Shimillas , Kleanthis Malialis , Konstantinos Fokianos , Marios M. Polycarpou

Learning visual feature representations for video analysis is a daunting task that requires a large amount of training samples and a proper generalization framework. Many of the current state of the art methods for video captioning and…

Machine Learning · Computer Science 2018-09-20 Oliver Nina , Washington Garcia , Scott Clouse , Alper Yilmaz

Recent Self-Supervised Learning (SSL) methods are able to learn feature representations that are invariant to different data augmentations, which can then be transferred to downstream tasks of interest. However, different downstream tasks…

Machine Learning · Computer Science 2023-03-08 Chen Huang , Hanlin Goh , Jiatao Gu , Josh Susskind

Multitask learning (MTL) aims to develop a unified model that can handle a set of closely related tasks simultaneously. By optimizing the model across multiple tasks, MTL generally surpasses its non-MTL counterparts in terms of…

Machine Learning · Computer Science 2023-10-11 Chin-Chia Michael Yeh , Xin Dai , Yan Zheng , Junpeng Wang , Huiyuan Chen , Yujie Fan , Audrey Der , Zhongfang Zhuang , Liang Wang , Wei Zhang

In many real-world applications, modeling both the internal structure of sets and their temporal relationships is essential for capturing complex underlying patterns. Sequential multiple-instance learning aims to address this challenge by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Athanasios Efthymiou , Stevan Rudinac , Monika Kackovic , Nachoem Wijnberg , Marcel Worring

Time series classification (TSC) is an important task in time series analysis. Existing TSC methods mainly train on each single domain separately, suffering from a degradation in accuracy when the samples for training are insufficient in…

Machine Learning · Computer Science 2025-04-15 Yuxuan Chen , Shanshan Huang , Yunyao Cheng , Peng Chen , Zhongwen Rao , Yang Shu , Bin Yang , Lujia Pan , Chenjuan Guo

Self-supervised pre-training paradigms have been extensively explored in the field of skeleton-based action recognition. In particular, methods based on masked prediction have pushed the performance of pre-training to a new height. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Ruizhuo Xu , Linzhi Huang , Mei Wang , Jiani Hu , Weihong Deng

Convolutional neural networks can achieve remarkable performance in semantic segmentation tasks. However, such neural network approaches heavily rely on costly pixel-level annotation. Semi-supervised learning is a promising resolution to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Hui Xiao , Li Dong , Kangkang Song , Hao Xu , Shuibo Fu , Diqun Yan , Chengbin Peng

Multivariate time series data provide a robust framework for future predictions by leveraging information across multiple dimensions, ensuring broad applicability in practical scenarios. However, their high dimensionality and mixing…

Machine Learning · Computer Science 2024-11-28 Xuanbing Zhu , Dunbin Shen , Zhongwen Rao , Huiyi Ma , Yingguang Hao , Hongyu Wang

Cross-modal retrieval methods have been significantly improved in last years with the use of deep neural networks and large-scale annotated datasets such as ImageNet and Places. However, collecting and annotating such datasets requires a…

Computer Vision and Pattern Recognition · Computer Science 2019-02-04 Yash Patel , Lluis Gomez , Marçal Rusiñol , Dimosthenis Karatzas , C. V. Jawahar

Self-supervised learning (SSL), as a newly emerging unsupervised representation learning paradigm, generally follows a two-stage learning pipeline: 1) learning invariant and discriminative representations with auto-annotation pretext(s),…

Machine Learning · Computer Science 2022-08-23 Jiayu Yao , Qingyuan Wu , Quan Feng , Songcan Chen

Spatially dense self-supervised learning is a rapidly growing problem domain with promising applications for unsupervised segmentation and pretraining for dense downstream tasks. Despite the abundance of temporal data in the form of videos,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Mohammadreza Salehi , Efstratios Gavves , Cees G. M. Snoek , Yuki M. Asano

Recent self-supervised methods are mainly designed for representation learning with the base model, e.g., ResNets or ViTs. They cannot be easily transferred to DETR, with task-specific Transformer modules. In this work, we present Siamese…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Zeren Chen , Gengshi Huang , Wei Li , Jianing Teng , Kun Wang , Jing Shao , Chen Change Loy , Lu Sheng