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Traffic forecasting is crucial for transportation systems optimisation. Current models minimise the mean forecasting errors, often favouring periodic events prevalent in the training data, while overlooking critical aperiodic ones like…

Machine Learning · Computer Science 2025-06-10 Xinyu Su , Feng Liu , Yanchuan Chang , Egemen Tanin , Majid Sarvi , Jianzhong Qi

Recent advances in uncertainty quantification for time series forecasting show that conformal prediction can provide reliable prediction intervals, yet standard conformal methods are often inefficient under temporal dependence, drift, and…

Machine Learning · Computer Science 2026-05-12 Manuel Heurich , Maximilian Granz , Tim Landgraf

Recent advancements have progressively incorporated frequency-based techniques into deep learning models, leading to notable improvements in accuracy and efficiency for time series analysis tasks. However, the Mid-Frequency Spectrum Gap in…

Machine Learning · Computer Science 2025-03-04 Guoqi Yu , Yaoming Li , Juncheng Wang , Xiaoyu Guo , Angelica I. Aviles-Rivero , Tong Yang , Shujun Wang

As text and code resources have expanded, large-scale pre-trained models have shown promising capabilities in code generation tasks, typically employing supervised fine-tuning with problem statement-program pairs. However, increasing model…

Computation and Language · Computer Science 2025-04-10 Nathanaël Beau , Benoît Crabbé

Precipitation nowcasting remains challenging due to the highly localized, rapidly evolving, and heterogeneous nature of atmospheric dynamics. Although recent methods increasingly adopt attention-based architectures in both unimodal and…

Machine Learning · Computer Science 2026-05-14 Penghui Wen , Zexin Hu , Sen Zhang , Patrick Filippi , Xiaogang Zhu , Allen Benter , Thomas Bishop , Zhiyong Wang , Kun Hu

ReDash extends Dash's arithmetic garbled circuits to provide a more flexible and efficient framework for secure outsourced inference. By introducing a novel garbled scaling gadget based on a generalized base extension for the residue number…

Cryptography and Security · Computer Science 2025-06-18 Felix Maurer , Jonas Sander , Thomas Eisenbarth

Vision-language models (VLMs) exhibit remarkable zero-shot capabilities but struggle with distribution shifts in downstream tasks when labeled data is unavailable, which has motivated the development of Test-Time Adaptation (TTA) to improve…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Yiwen Liang , Hui Chen , Yizhe Xiong , Zihan Zhou , Mengyao Lyu , Zijia Lin , Shuaicheng Niu , Sicheng Zhao , Jungong Han , Guiguang Ding

Urban forecasting models often face a severe data imbalance problem: only a few cities have dense, long-span records, while many others expose short or incomplete histories. Direct transfer from data-rich to data-scarce cities is unreliable…

Machine Learning · Computer Science 2025-09-23 Yue Jiang , Chenxi Liu , Yile Chen , Qin Chao , Shuai Liu , Cheng Long , Gao Cong

In the transformative landscape of smart cities, the integration of the cutting-edge web technologies into time series forecasting presents a pivotal opportunity to enhance urban planning, sustainability, and economic growth. The…

Machine Learning · Computer Science 2024-05-10 Ziyi Zhang , Shaogang Ren , Xiaoning Qian , Nick Duffield

Large language models (LLMs) have shown great potential in code-related tasks, yet open-source models lag behind their closed-source counterparts. To bridge this performance gap, existing methods generate vast amounts of synthetic data for…

Computation and Language · Computer Science 2024-08-06 Weijie Lv , Xuan Xia , Sheng-Jun Huang

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…

Machine Learning · Computer Science 2024-10-25 Jingwei Liu , Ling Yang , Hongyan Li , Shenda Hong

Urban flow forecasting is a challenging task, given the inherent periodic characteristics of urban flow patterns. To capture the periodicity, existing urban flow prediction approaches are often designed with closeness, period, and trend…

Artificial Intelligence · Computer Science 2022-03-04 Hao Xue , Flora D Salim

Recent studies have demonstrated the great power of Transformer models for time series forecasting. One of the key elements that lead to the transformer's success is the channel-independent (CI) strategy to improve the training robustness.…

Machine Learning · Computer Science 2024-02-19 Wang Xue , Tian Zhou , Qingsong Wen , Jinyang Gao , Bolin Ding , Rong Jin

The High-Resolution Rapid Refresh (HRRR) model is a convection-allowing model used in operational weather forecasting across the contiguous United States (CONUS). To provide a computationally efficient alternative, we introduce HRRRCast, a…

Atmospheric and Oceanic Physics · Physics 2025-07-09 Daniel Abdi , Isidora Jankov , Paul Madden , Vanderlei Vargas , Timothy A. Smith , Sergey Frolov , Montgomery Flora , Corey Potvin

As large-scale time-series data can easily be found in real-world applications, multivariate time-series anomaly detection has played an essential role in diverse industries. It enables productivity improvement and maintenance cost…

Machine Learning · Computer Science 2022-02-22 Heejeong Choi , Subin Kim , Pilsung Kang

Time series forecasting uses historical data to predict future trends, leveraging the relationships between past observations and available features. In this paper, we propose RAFT, a retrieval-augmented time series forecasting method to…

Machine Learning · Computer Science 2025-05-08 Sungwon Han , Seungeon Lee , Meeyoung Cha , Sercan O Arik , Jinsung Yoon

Time series forecasting plays a crucial role in decision-making across many real-world applications. Despite substantial progress, most existing methods still treat forecasting as a static, single-pass regression problem. In contrast, human…

Artificial Intelligence · Computer Science 2026-04-13 Xiaohan Zhang , Tian Gao , Mingyue Cheng , Bokai Pan , Ze Guo , Yaguo Liu , Xiaoyu Tao , Qi Liu

Precipitation nowcasting based on radar data plays a crucial role in extreme weather prediction and has broad implications for disaster management. Despite progresses have been made based on deep learning, two key challenges of…

Machine Learning · Computer Science 2024-02-08 Junchao Gong , Lei Bai , Peng Ye , Wanghan Xu , Na Liu , Jianhua Dai , Xiaokang Yang , Wanli Ouyang

Time series forecasting is an important and forefront task in many real-world applications. However, most of time series forecasting techniques assume that the training data is clean without anomalies. This assumption is unrealistic since…

Machine Learning · Computer Science 2024-02-06 Hao Cheng , Qingsong Wen , Yang Liu , Liang Sun

In practice, LDPC codes are decoded using message passing methods. These methods offer good performance but tend to converge slowly and sometimes fail to converge and to decode the desired codewords correctly. Recently, tree-reweighted…

Information Theory · Computer Science 2014-03-05 J. Li , R. C. de Lamare , H. Wymeersch