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Related papers: FrAug: Frequency Domain Augmentation for Time Seri…

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Temporal Domain Generalization (TDG) aims to generalize across temporal distribution shifts, e.g., lexical change over time. Prior work often addresses this by predicting future model weights. However, full model prediction is prohibitively…

Machine Learning · Computer Science 2025-10-01 Aoming Liu , Kevin Miller , Venkatesh Saligrama , Kate Saenko , Boqing Gong , Ser-Nam Lim , Bryan A. Plummer

Data augmentation is one of the most effective techniques for regularizing deep learning models and improving their recognition performance in a variety of tasks and domains. However, this holds for standard in-domain settings, in which the…

Data augmentation is a technique to improve the generalization ability of machine learning methods by increasing the size of the dataset. However, since every augmentation method is not equally effective for every dataset, you need to…

Machine Learning · Computer Science 2022-05-31 Daisuke Oba , Shinnosuke Matsuo , Brian Kenji Iwana

Time series forecasting plays a crucial role in data mining, driving rapid advancements across numerous industries. With the emergence of large models, time series foundation models (TSFMs) have exhibited remarkable generalization…

Machine Learning · Computer Science 2024-12-31 Huanyu Zhang , Chang Xu , Yi-Fan Zhang , Zhang Zhang , Liang Wang , Jiang Bian , Tieniu Tan

Current approaches for time series forecasting, whether in the time or frequency domain, predominantly use deep learning models based on linear layers or transformers. They often encode time series data in a black-box manner and rely on…

Machine Learning · Computer Science 2025-10-14 Cheng He , Xijie Liang , Zengrong Zheng , Patrick P. C. Lee , Xu Huang , Zhaoyi Li , Hong Xie , Defu Lian , Enhong Chen

Small-scale data is a critical problem in time-series forecasting tasks. Data augmentation is an effective strategy for this task, but it has a limitation in generating meaningful data. To address this limitation, we propose DAD4TS, a…

Machine Learning · Computer Science 2026-05-19 Masahiro Suzuki , Bohui Xia , Hiroto Yamamoto , Masanori Miyahara

Time series forecasting, particularly in few-shot learning scenarios, is challenging due to the limited availability of high-quality training data. To address this, we present a pilot study on using reinforcement learning (RL) for time…

Machine Learning · Computer Science 2025-05-23 Haochen Yuan , Yutong Wang , Yihong Chen , Yunbo Wang , Xiaokang Yang

Data augmentation has become a promising method of mitigating data sparsity in sequential recommendation. Existing methods generate new yet effective data during model training to improve performance. However, deploying them requires…

Information Retrieval · Computer Science 2025-05-01 Yizhou Dang , Yuting Liu , Enneng Yang , Minhan Huang , Guibing Guo , Jianzhe Zhao , Xingwei Wang

Large Language Models (LLMs) and Foundation Models (FMs) have recently become prevalent for time series forecasting tasks. While fine-tuning LLMs enables domain adaptation, they often struggle to generalize across diverse and unseen…

Time series modeling presents unique challenges due to autocorrelation in both historical data and future sequences. While current research predominantly addresses autocorrelation within historical data, the correlations among future labels…

Machine Learning · Computer Science 2025-05-07 Hao Wang , Licheng Pan , Zhichao Chen , Degui Yang , Sen Zhang , Yifei Yang , Xinggao Liu , Haoxuan Li , Dacheng Tao

Medical image data are often limited due to the expensive acquisition and annotation process. Hence, training a deep-learning model with only raw data can easily lead to overfitting. One solution to this problem is to augment the raw data…

Image and Video Processing · Electrical Eng. & Systems 2023-12-19 Xinyue Xu , Yuhan Hsi , Haonan Wang , Xiaomeng Li

Human-designed data augmentation strategies have been replaced by automatically learned augmentation policy in the past two years. Specifically, recent work has empirically shown that the superior performance of the automated data…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Zirui Liu , Haifeng Jin , Ting-Hsiang Wang , Kaixiong Zhou , Xia Hu

Existing automatic data augmentation (DA) methods either ignore updating DA's parameters according to the target model's state during training or adopt update strategies that are not effective enough. In this work, we design a novel data…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Xiaogang Xu , Hengshuang Zhao

Meta-forecasting is a newly emerging field which combines meta-learning and time series forecasting. The goal of meta-forecasting is to train over a collection of source time series and generalize to new time series one-at-a-time. Previous…

Machine Learning · Computer Science 2023-02-07 Mike Van Ness , Huibin Shen , Hao Wang , Xiaoyong Jin , Danielle C. Maddix , Karthick Gopalswamy

The increasingly popular adoption of deep learning models in many critical source code tasks motivates the development of data augmentation (DA) techniques to enhance training data and improve various capabilities (e.g., robustness and…

Computation and Language · Computer Science 2023-11-14 Terry Yue Zhuo , Zhou Yang , Zhensu Sun , Yufei Wang , Li Li , Xiaoning Du , Zhenchang Xing , David Lo

Atrial fibrillation (AF) detection from electrocardiogram (ECG) signals is crucial for early diagnosis and management of cardiovascular diseases. However, deploying robust AF detection models across different datasets with significant…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Majid Soleimani , Maedeh H. Toosi , Siamak Mohammadi , Babak Hossein Khalaj

In real-world applications, deep learning models often run in non-stationary environments where the target data distribution continually shifts over time. There have been numerous domain adaptation (DA) methods in both online and offline…

Machine Learning · Computer Science 2023-03-13 Chenxi Liu , Lixu Wang , Lingjuan Lyu , Chen Sun , Xiao Wang , Qi Zhu

Data augmentation is a dominant method for reducing model overfitting and improving generalization. Most existing data augmentation methods tend to find a compromise in augmenting the data, \textit{i.e.}, increasing the amplitude of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Zehao Wang , Yiwen Guo , Qizhang Li , Guanglei Yang , Wangmeng Zuo

Time-series forecasting is crucial for numerous real-world applications including weather prediction and financial market modeling. While temporal-domain methods remain prevalent, frequency-domain approaches can effectively capture…

Machine Learning · Computer Science 2025-08-05 Zhixuan Li , Naipeng Chen , Seonghwa Choi , Sanghoon Lee , Weisi Lin

With the development of Artificial Intelligence, numerous real-world tasks have been accomplished using technology integrated with deep learning. To achieve optimal performance, deep neural networks typically require large volumes of data…

Machine Learning · Computer Science 2025-05-09 Yuren Zhang , Zhongnan Pu , Lei Jing