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Time series forecasting is a critical task in domains such as energy, finance, and meteorology, where accurate long-term predictions are essential. While Transformer-based models have shown promise in capturing temporal dependencies, their…

机器学习 · 计算机科学 2024-12-10 Zhenkai Qin , Baozhong Wei , Caifeng Gao , Jianyuan Ni

In this study, we introduce an innovative EEG signal reconstruction sub-module designed to enhance the performance of deep learning models on EEG eye-tracking tasks. This sub-module can integrate with all Encoder-Classifier-based deep…

人机交互 · 计算机科学 2024-08-13 Weigeng Li , Neng Zhou , Xiaodong Qu

Multivariate time series forecasting poses an ongoing challenge across various disciplines. Time series data often exhibit diverse intra-series and inter-series correlations, contributing to intricate and interwoven dependencies that have…

机器学习 · 计算机科学 2024-01-02 Wanlin Cai , Yuxuan Liang , Xianggen Liu , Jianshuai Feng , Yuankai Wu

Long-term time series forecasting is a vital task and has a wide range of real applications. Recent methods focus on capturing the underlying patterns from one single domain (e.g. the time domain or the frequency domain), and have not taken…

机器学习 · 计算机科学 2023-08-28 Yuxiao Luo , Ziyu Lyu , Xingyu Huang

Most studies on speech enhancement generally don't consider the energy distribution of speech in time-frequency (T-F) representation, which is important for accurate prediction of mask or spectra. In this paper, we present a simple yet…

声音 · 计算机科学 2022-03-10 Qiquan Zhang , Qi Song , Zhaoheng Ni , Aaron Nicolson , Haizhou Li

Time series forecasting faces two important but often overlooked challenges. Firstly, the inherent random noise in the time series labels sets a theoretical lower bound for the forecasting error, which is positively correlated with the…

机器学习 · 计算机科学 2025-09-26 Tianyi Shi , Zhu Meng , Yue Chen , Siyang Zheng , Fei Su , Jin Huang , Changrui Ren , Zhicheng Zhao

Integrating time-frequency resource conversion (TFRC), a new network resource allocation strategy, with call admission control can not only increase the cell capacity but also reduce network congestion effectively. However, the optimal…

网络与互联网体系结构 · 计算机科学 2016-05-24 Hangguan Shan , Yani Zhang , Weihua Zhuang , Aiping Huang , Zhaoyang Zhang

Time series forecasting is essential in a wide range of real world applications. Recently, frequency-domain methods have attracted increasing interest for their ability to capture global dependencies. However, when applied to non-stationary…

机器学习 · 统计学 2026-02-09 Zhongde An , Jinhong You , Jiyanglin Li , Yiming Tang , Wen Li , Heming Du , Shouguo Du

While time series diffusion models have received considerable focus from many recent works, the performance of existing models remains highly unstable. Factors limiting time series diffusion models include insufficient time series datasets…

机器学习 · 计算机科学 2024-10-25 Jingwei Liu , Ling Yang , Hongyan Li , Shenda Hong

Time-series forecasting plays a critical role in many real-world applications. Although increasingly powerful models have been developed and achieved superior results on benchmark datasets, through a fine-grained sample-level inspection, we…

机器学习 · 计算机科学 2025-05-27 Zhining Liu , Ze Yang , Xiao Lin , Ruizhong Qiu , Tianxin Wei , Yada Zhu , Hendrik Hamann , Jingrui He , Hanghang Tong

Irregularly sampled multivariate event streams remain a stubbornly difficult modality for generative modeling: tokenization-based approaches break down when inter-event intervals vary by orders of magnitude, and neural temporal point…

机器学习 · 计算机科学 2026-05-15 Mohammad R. Rezaei , Tejas Balaji , Rahul G. Krishnan

A wireless network operator typically divides the radio spectrum it possesses into a number of subbands. In a cellular network those subbands are then reused in many cells. To mitigate co-channel interference, a joint spectrum and power…

信号处理 · 电气工程与系统科学 2020-12-22 Yasar Sinan Nasir , Dongning Guo

In time series forecasting, effectively disentangling intricate temporal patterns is crucial. While recent works endeavor to combine decomposition techniques with deep learning, multiple frequencies may still be mixed in the decomposed…

人工智能 · 计算机科学 2024-03-27 Xiaobing Yuan , Ling Chen

Phased arrays, commonly used in IEEE 802.11ad and 5G radios, are capable of focusing radio frequency signals in a specific direction or a spatial region. Beamforming achieves such directional or spatial concentration of signals and enables…

信号处理 · 电气工程与系统科学 2024-10-30 Nitin Jonathan Myers , Robert W. Heath

Cross-domain few-shot learning (CD-FSL) aims to recognize novel classes with only a few labeled examples under significant domain shifts. While recent approaches leverage a limited amount of labeled target-domain data to improve…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Siqi Hui , Sanping Zhou , Ye deng , Wenli Huang , Jinjun Wang

Generating high-quality time-series data is challenging because real-world signals often exhibit multimodal patterns and multiscale dynamics, including oscillations and high-frequency variations. Flow Matching (FM) offers an efficient…

机器学习 · 计算机科学 2026-05-29 Junru Zhang , Lang Feng , Jinbo Wang , Xu Guo , Yucheng Wang , Han Yu , Min Wu , Yabo Dong , Duanqing Xu

The primary objective of this research is to build a Momentum Transformer that is expected to outperform benchmark time-series momentum and mean-reversion trading strategies. We extend the ideas introduced in the paper Trading with the…

计算金融 · 定量金融 2024-12-18 Max Mason , Waasi A Jagirdar , David Huang , Rahul Murugan

Time-series data augmentation mitigates the issue of insufficient training data for deep learning models. Yet, existing augmentation methods are mainly designed for classification, where class labels can be preserved even if augmentation…

机器学习 · 计算机科学 2023-03-28 Xiyuan Zhang , Ranak Roy Chowdhury , Jingbo Shang , Rajesh Gupta , Dezhi Hong

Time series foundation models have demonstrated impressive performance as zero-shot forecasters. However, achieving effectively unified training on time series remains an open challenge. Existing approaches introduce some level of model…

Time series forecasting plays a critical role in various real-world applications, including energy consumption prediction, disease transmission monitoring, and weather forecasting. Although substantial progress has been made in time series…

机器学习 · 计算机科学 2024-11-26 Wei Yuan , Guanhua Ye , Xiangyu Zhao , Quoc Viet Hung Nguyen , Yang Cao , Hongzhi Yin