中文
相关论文

相关论文: Rethinking Channel Dependence for Multivariate Tim…

200 篇论文

Multivariate time series (MTS) analysis prevails in real-world applications such as finance, climate science and healthcare. The various self-attention mechanisms, the backbone of the state-of-the-art Transformer-based models, efficiently…

机器学习 · 计算机科学 2023-11-21 Quang Minh Nguyen , Lam M. Nguyen , Subhro Das

We introduce an adaptive method with formal quality guarantees for weak supervision in a non-stationary setting. Our goal is to infer the unknown labels of a sequence of data by using weak supervision sources that provide independent noisy…

机器学习 · 计算机科学 2025-05-05 Alessio Mazzetto , Reza Esfandiarpoor , Akash Singirikonda , Eli Upfal , Stephen H. Bach

Recent studies in multivariate time series (MTS) forecasting reveal that explicitly modeling the hidden dependencies among different time series can yield promising forecasting performance and reliable explanations. However, modeling…

机器学习 · 计算机科学 2024-02-21 Zijie Pan , Yushan Jiang , Dongjin Song , Sahil Garg , Kashif Rasul , Anderson Schneider , Yuriy Nevmyvaka

The lead-lag effect, where the price movement of one asset systematically precedes that of another, has been widely observed in financial markets and conveys valuable predictive signals for trading. However, traditional lead-lag detection…

计算工程、金融与科学 · 计算机科学 2025-11-04 Wanyun Zhou , Saizhuo Wang , Mihai Cucuringu , Zihao Zhang , Xiang Li , Jian Guo , Chao Zhang , Xiaowen Chu

Several applications in time series forecasting require predicting multiple steps ahead. Despite the vast amount of literature in the topic, both classical and recent deep learning based approaches have mostly focused on minimising…

机器学习 · 计算机科学 2024-07-15 Ignacio Hounie , Javier Porras-Valenzuela , Alejandro Ribeiro

Among the existing Transformer-based multivariate time series forecasting methods, iTransformer, which treats each variable sequence as a token and only explicitly extracts cross-variable dependencies, and PatchTST, which adopts a…

机器学习 · 计算机科学 2025-01-08 Liyang Qin , Xiaoli Wang , Chunhua Yang , Huaiwen Zou , Haochuan Zhang

Pre-trained Large Language Models (LLMs) encapsulate large amounts of knowledge and take enormous amounts of compute to train. We make use of this resource, together with the observation that LLMs are able to transfer knowledge and…

机器学习 · 计算机科学 2025-01-14 Malcolm L. Wolff , Shenghao Yang , Kari Torkkola , Michael W. Mahoney

Long-term load forecast (LTLF) for area distribution feeders is one of the most critical tasks frequently performed in electric distribution utility companies. For a specific planning area, cost-effective system upgrades can only be planned…

系统与控制 · 电气工程与系统科学 2020-07-02 Ming Dong , Jian Shi , QingXin Shi

Time series forecasting is important in finance domain. Financial time series (TS) patterns are influenced by both short-term public opinions and medium-/long-term policy and market trends. Hence, processing multi-period inputs becomes…

统计金融 · 定量金融 2026-02-03 Xu Zhang , Zhengang Huang , Yunzhi Wu , Xun Lu , Erpeng Qi , Yunkai Chen , Zhongya Xue , Qitong Wang , Peng Wang , Wei Wang

Load forecasting is essential for the efficient, reliable, and cost-effective management of power systems. Load forecasting performance can be improved by learning the similarities among multiple entities (e.g., regions, buildings).…

机器学习 · 统计学 2025-02-07 Onintze Zaballa , Verónica Álvarez , Santiago Mazuelas

Forecasting the behaviour of complex dynamical systems such as interconnected sensor networks characterized by high-dimensional multivariate time series(MTS) is of paramount importance for making informed decisions and planning for the…

In recent years, traffic prediction has achieved remarkable success and has become an integral component of intelligent transportation systems. However, traffic data is typically distributed among multiple data owners, and privacy…

机器学习 · 计算机科学 2025-08-07 Mo Zhang , Xiaoyu Li , Bin Xu , Meng Chen , Yongshun Gong

Weather forecasting refers to learning evolutionary patterns of some key upper-air and surface variables which is of great significance. Recently, deep learning-based methods have been increasingly applied in the field of weather…

机器学习 · 计算机科学 2024-07-30 Shuangliang Li , Siwei Li

Modern time series forecasting methods, such as Transformer and its variants, have shown strong ability in sequential data modeling. To achieve high performance, they usually rely on redundant or unexplainable structures to model complex…

机器学习 · 计算机科学 2023-11-30 Jingyi Hou , Zhen Dong , Jiayu Zhou , Zhijie Liu

Hydrometric forecasting is crucial for managing water resources, flood prediction, and environmental protection. Water stations are interconnected, and this connectivity influences the measurements at other stations. However, the dynamic…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Naghmeh Shafiee Roudbari , Ursula Eicker , Charalambos Poullis , Zachary Patterson

This paper introduces a new latent variable generative model able to handle high dimensional longitudinal data and relying on variational inference. The time dependency between the observations of an input sequence is modelled using…

机器学习 · 统计学 2023-03-28 Clément Chadebec , Stéphanie Allassonnière

Large language models (LLMs) have been introduced to time series forecasting (TSF) to incorporate contextual knowledge beyond numerical signals. However, existing studies question whether LLMs provide genuine benefits, often reporting…

计算与语言 · 计算机科学 2026-03-04 Xin Qiu , Junlong Tong , Yirong Sun , Yunpu Ma , Wei Zhang , Xiaoyu Shen

Time series foundation models (TSFMs) such as Lag-Llama, TimeGPT, Chronos, MOMENT, UniTS, and TimesFM have shown strong generalization and zero-shot capabilities for time series forecasting, anomaly detection, classification, and…

机器学习 · 计算机科学 2025-08-26 Dhruv D. Modi , Rong Pan

Producing probabilistic forecasts for large collections of similar and/or dependent time series is a practically relevant and challenging task. Classical time series models fail to capture complex patterns in the data, and multivariate…

机器学习 · 统计学 2019-05-30 Yuyang Wang , Alex Smola , Danielle C. Maddix , Jan Gasthaus , Dean Foster , Tim Januschowski

Transformers have recently gained popularity in time series forecasting due to their ability to capture long-term dependencies. However, many existing models focus only on capturing temporal dependencies while omitting intricate…

机器学习 · 计算机科学 2025-05-26 Donghwa Shin , Edwin Zhang