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Trustworthy decision making in networked, dynamic environments calls for innovative uncertainty quantification substrates in predictive models for graph time series. Existing conformal prediction (CP) methods have been applied separately to…

机器学习 · 计算机科学 2025-10-14 Sonakshi Dua , Gonzalo Mateos , Sundeep Prabhakar Chepuri

Topological Data Analysis (TDA) has emerged as a powerful tool for extracting meaningful features from complex data structures, driving significant advancements in fields such as neuroscience, biology, machine learning, and financial…

机器学习 · 计算机科学 2025-04-02 ZiXin Lin , Nur Fariha Syaqina Zulkepli

Multivariate time series (MTS) forecasting is crucial in many real-world applications. To achieve accurate MTS forecasting, it is essential to simultaneously consider both intra- and inter-series relationships among time series data.…

机器学习 · 计算机科学 2024-02-26 Kun Yi , Qi Zhang , Hui He , Kaize Shi , Liang Hu , Ning An , Zhendong Niu

We introduce CopFITi, a copula model for probabilistic forecasting of irregular multivariate time series (IMTS). Our model combines the expressivity of normalizing flows for univariate marginals with the consistency and flexibility of a…

机器学习 · 计算机科学 2026-05-25 Christian Klötergens , Tom Hanika , Lars Schmidt-Thieme , Vijaya Krishna Yalavarthi

Currently, iTransformer is one of the most popular and effective models for multivariate time series (MTS) forecasting. Thanks to its inverted framework, iTransformer effectively captures multivariate correlation. However, the inverted…

机器学习 · 计算机科学 2025-07-17 Hongming Tan , Ting Chen , Ruochong Jin , Wai Kin Chan

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…

机器学习 · 计算机科学 2023-02-07 Mike Van Ness , Huibin Shen , Hao Wang , Xiaoyong Jin , Danielle C. Maddix , Karthick Gopalswamy

Recent progress in foundation models has enabled strong zero-shot performance for time series forecasting. In this work, we show that such capabilities can also emerge from tabular foundation models. We introduce TabPFN-TS, a simple method…

机器学习 · 计算机科学 2026-01-28 Shi Bin Hoo , Samuel Müller , David Salinas , Frank Hutter

Long-term Time Series Forecasting (LTSF) is critical for numerous real-world applications, such as electricity consumption planning, financial forecasting, and disease propagation analysis. LTSF requires capturing long-range dependencies…

机器学习 · 计算机科学 2024-10-04 Aitian Ma , Dongsheng Luo , Mo Sha

Reliable confidence measures of metrics derived from medical imaging reconstruction pipelines would improve the standard of decision-making in many clinical workflows. Conformal Prediction (CP) provides a robust framework for producing…

Classical estimators, the cornerstones of statistical inference, face insurmountable challenges when applied to important emerging classes of Archimedean copulas. These models exhibit pathological properties, including numerically unstable…

机器学习 · 统计学 2026-02-03 Agnideep Aich

Real-world time series data that commonly reflect sequential human behavior are often uniquely irregularly sampled and sparse, with highly nonuniform sampling over time and entities. Yet, commonly-used pretraining and augmentation methods…

机器学习 · 计算机科学 2023-08-29 Nicasia Beebe-Wang , Sayna Ebrahimi , Jinsung Yoon , Sercan O. Arik , Tomas Pfister

Time series forecasting predicts future values from past data. In real-world settings, some anomalous events have lasting effects and influence the forecast, while others are short-lived and should be ignored. Standard forecasting models…

机器学习 · 计算机科学 2025-12-15 Joel Ekstrand , Zahra Taghiyarrenani , Slawomir Nowaczyk

Multivariate time series (MTS) anomaly detection is essential for maintaining the reliability of industrial systems, yet real-world deployment is hindered by two critical challenges: training data contamination (noises and hidden anomalies)…

机器学习 · 计算机科学 2025-10-28 Songhan Zhang , Yuanhao Lai , Pengfei Zheng , Boxi Yu , Xiaoying Tang , Qiuai Fu , Pinjia He

Test-time adaptation (TTA) has recently emerged as a promising approach for improving time series forecasting (TSF) under distribution shift. Existing TSF-TTA methods differ in how they utilize revealed targets, yet the resulting adaptation…

机器学习 · 计算机科学 2026-05-19 Haochun Wang , Ruichen Xu , Georgios Kementzidis , Karen Cho , Sebastian Ramirez Villarreal , Yuefan Deng

Multivariate time-series (MTS) forecasting is a challenging task in many real-world non-stationary dynamic scenarios. In addition to intra-series temporal signals, the inter-series dependency also plays a crucial role in shaping future…

机器学习 · 计算机科学 2023-12-29 Weijun Chen , Heyuan Wang , Ye Tian , Shijie Guan , Ning Liu

Convolutional Neural Networks (ConvNets) are trained offline using the few available data and may therefore suffer from substantial accuracy loss when ported on the field, where unseen input patterns received under unpredictable external…

计算机视觉与模式识别 · 计算机科学 2021-05-14 Luca Mocerino , Roberto G. Rizzo , Valentino Peluso , Andrea Calimera , Enrico Macii

The task of multi-channel time series forecasting is ubiquitous in numerous fields such as finance, supply chain management, and energy planning. It is critical to effectively capture complex dynamic dependencies within and between channels…

人工智能 · 计算机科学 2026-03-20 Lei Gao , Hengda Bao , Jingfei Fang , Guangzheng Wu , Weihua Zhou , Yun Zhou

Multivariate Time Series (MTS) forecasting involves modeling temporal dependencies within historical records. Transformers have demonstrated remarkable performance in MTS forecasting due to their capability to capture long-term…

机器学习 · 计算机科学 2024-07-17 Yifan Zhang , Rui Wu , Sergiu M. Dascalu , Frederick C. Harris

Accurate forecasting of multivariate time series data remains a formidable challenge, particularly due to the growing complexity of temporal dependencies in real-world scenarios. While neural network-based models have achieved notable…

机器学习 · 计算机科学 2025-12-09 Andrey Savchenko , Oleg Kachan

Action quality assessment (AQA) aims to automatically quantify the execution quality of human actions in videos and is valuable for applications such as competitive sports judging. In multimodal AQA, quality evidence from different…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Qiqi Li , Pengfei Wang , Nenggan Zheng