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Time series anomaly prediction plays an essential role in many real-world scenarios, such as environmental prevention and prompt maintenance of cyber-physical systems. However, existing time series anomaly prediction methods mainly require…

机器学习 · 计算机科学 2025-12-05 Kai Zhao , Zhihao Zhuang , Chenjuan Guo , Hao Miao , Yunyao Cheng , Bin Yang

The project aims to research on combining deep learning specifically Long-Short Memory (LSTM) and basic statistics in multiple multistep time series prediction. LSTM can dive into all the pages and learn the general trends of variation in a…

机器学习 · 统计学 2017-10-13 Chuanyun Zang

Multivariate Time Series (MTS) anomaly detection focuses on pinpointing samples that diverge from standard operational patterns, which is crucial for ensuring the safety and security of industrial applications. The primary challenge in this…

机器学习 · 计算机科学 2024-04-19 Haili Sun , Yan Huang , Lansheng Han , Cai Fu , Chunjie Zhou

Learning from noisy data is a challenging task that significantly degenerates the model performance. In this paper, we present TCL, a novel twin contrastive learning model to learn robust representations and handle noisy labels for…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Zhizhong Huang , Junping Zhang , Hongming Shan

To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

音频与语音处理 · 电气工程与系统科学 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

Contrastive learning has achieved remarkable success in self-supervised representation learning, often guided by information-theoretic objectives such as mutual information maximization. Motivated by the limitations of static augmentations…

机器学习 · 计算机科学 2026-03-16 Jiansong Zhang , Zhuoqin Yang , Xu Wu , Xiaoling Luo , Peizhong Liu , Linlin Shen

Cross-modal retrieval (CMR) typically involves learning common representations to directly measure similarities between multimodal samples. Most existing CMR methods commonly assume multimodal samples in pairs and employ joint training to…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Ruitao Pu , Yang Qin , Dezhong Peng , Xiaomin Song , Huiming Zheng

Knowledge Distillation (KD) aims to transfer knowledge from a large teacher model to a smaller student model. While contrastive learning has shown promise in self-supervised learning by creating discriminative representations, its…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Nikolaos Giakoumoglou , Tania Stathaki

We revisit previous contrastive learning frameworks to investigate the effect of introducing an adaptive margin into the contrastive loss function for time series representation learning. Specifically, we explore whether an adaptive margin…

机器学习 · 计算机科学 2025-07-22 Abdul-Kazeem Shamba , Kerstin Bach , Gavin Taylor

Contrastive learning (CL) has recently emerged as an effective approach to learning representation in a range of downstream tasks. Central to this approach is the selection of positive (similar) and negative (dissimilar) sets to provide the…

机器学习 · 计算机科学 2021-10-25 Anh Bui , Trung Le , He Zhao , Paul Montague , Seyit Camtepe , Dinh Phung

Often we wish to transfer representational knowledge from one neural network to another. Examples include distilling a large network into a smaller one, transferring knowledge from one sensory modality to a second, or ensembling a…

机器学习 · 计算机科学 2022-01-26 Yonglong Tian , Dilip Krishnan , Phillip Isola

Contrastive learning allows us to flexibly define powerful losses by contrasting positive pairs from sets of negative samples. Recently, the principle has also been used to learn cross-modal embeddings for video and text, yet without…

计算机视觉与模式识别 · 计算机科学 2021-10-01 Mohammadreza Zolfaghari , Yi Zhu , Peter Gehler , Thomas Brox

Learning representation from unlabeled time series data is a challenging problem. Most existing self-supervised and unsupervised approaches in the time-series domain do not capture low and high-frequency features at the same time. Further,…

计算机视觉与模式识别 · 计算机科学 2023-11-27 Vandan Gorade , Azad Singh , Deepak Mishra

The representation of events in text plays a significant role in various NLP tasks. Recent research demonstrates that contrastive learning has the ability to improve event comprehension capabilities of Pre-trained Language Models (PLMs) and…

计算与语言 · 计算机科学 2024-04-30 Yubo Feng , Lishuang Li , Yi Xiang , Xueyang Qin

Hierarchical multi-label text classification (HMTC) aims at utilizing a label hierarchy in multi-label classification. Recent approaches to HMTC deal with the problem of imposing an over-constrained premise on the output space by using…

计算与语言 · 计算机科学 2024-06-21 Simon Yu , Jie He , Víctor Gutiérrez-Basulto , Jeff Z. Pan

With the rapid development of time-domain surveys, the availability of massive light curve data offers new opportunities for studying stellar evolution and variable star classification, while simultaneously posing challenges for feature…

太阳与恒星天体物理 · 物理学 2026-04-28 Junyao Ding , Xiaodian Chen , Xinyi Gao , Xiaoyu Tang , Shu Wang , Yang Huang , Xinyu Qi , Guirong Xue , Ali Luo , Jifeng Liu

Learning rich visual representations using contrastive self-supervised learning has been extremely successful. However, it is still a major question whether we could use a similar approach to learn superior auditory representations. In this…

声音 · 计算机科学 2020-10-20 Haider Al-Tahan , Yalda Mohsenzadeh

Sequential recommendation methods play a crucial role in modern recommender systems because of their ability to capture a user's dynamic interest from her/his historical interactions. Despite their success, we argue that these approaches…

信息检索 · 计算机科学 2021-03-02 Xu Xie , Fei Sun , Zhaoyang Liu , Shiwen Wu , Jinyang Gao , Bolin Ding , Bin Cui

This paper addresses the challenges of complex dependencies and diverse anomaly patterns in cloud service environments by proposing a dependency modeling and anomaly detection method that integrates contrastive learning. The method…

机器学习 · 计算机科学 2025-10-16 Yue Xing , Yingnan Deng , Heyao Liu , Ming Wang , Yun Zi , Xiaoxuan Sun

Self-supervised Multi-modal Contrastive Learning (SMCL) remarkably advances modern Vision-Language Pre-training (VLP) models by aligning visual and linguistic modalities. Due to noises in web-harvested text-image pairs, however, scaling up…

机器学习 · 计算机科学 2024-02-27 Chaoya Jiang , Wei ye , Haiyang Xu , Qinghao Ye , Ming Yan , Ji Zhang , Shikun Zhang