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相关论文: Time-MMD: Multi-Domain Multimodal Dataset for Time…

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Recent studies have indicated that vision models pre-trained on images can serve as time series foundation models (TSFMs) by reformulating time series forecasting (TSF) as image reconstruction. However, effective cross-modal transfer from…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Lefei Shen , Mouxiang Chen , Xu Liu , Han Fu , Xiaoxue Ren , Jianling Sun , Zhuo Li , Chenghao Liu

The intelligent fault diagnosis of rotating mechanical equipment usually requires a large amount of labeled sample data. However, in practical industrial applications, acquiring enough data is both challenging and expensive in terms of time…

机器学习 · 计算机科学 2025-09-12 Hanyang Wang , Yuxuan Yang , Hongjun Wang , Lihui Wang

Large time series models (LTMs) have emerged as powerful tools for universal forecasting, yet they often struggle with the inherent diversity and nonstationarity of real-world time series data, leading to an unsatisfactory trade-off between…

机器学习 · 计算机科学 2026-03-03 Yunzhong Qiu , Zhiyao Cen , Zhongyi Pei , Chen Wang , Jianmin Wang

In the realm of time series forecasting (TSF), it is imperative for models to adeptly discern and distill hidden patterns within historical time series data to forecast future states. Transformer-based models exhibit formidable efficacy in…

机器学习 · 计算机科学 2024-04-30 Zihan Wang , Fanheng Kong , Shi Feng , Ming Wang , Xiaocui Yang , Han Zhao , Daling Wang , Yifei Zhang

Human language is often multimodal, which comprehends a mixture of natural language, facial gestures, and acoustic behaviors. However, two major challenges in modeling such multimodal human language time-series data exist: 1) inherent data…

Within the field of complicated multivariate time series forecasting (TSF), popular techniques frequently rely on intricate deep learning architectures, ranging from transformer-based designs to recurrent neural networks. However, recent…

机器学习 · 计算机科学 2023-12-25 Aiyinsi Zuo , Haixi Zhang , Zirui Li , Ce Zheng

Time series anomaly detection (TSAD) plays a crucial role in various industries by identifying atypical patterns that deviate from standard trends, thereby maintaining system integrity and enabling prompt response measures. Traditional TSAD…

计算与语言 · 计算机科学 2024-05-27 Jun Liu , Chaoyun Zhang , Jiaxu Qian , Minghua Ma , Si Qin , Chetan Bansal , Qingwei Lin , Saravan Rajmohan , Dongmei Zhang

Large language models (LLMs) show promise for health applications when combined with behavioral sensing data. Traditional approaches convert sensor data into text prompts, but this process is prone to errors, computationally expensive, and…

The recent rapid advancements in language models (LMs) have garnered attention in medical time series-text multimodal learning. However, existing contrastive learning-based and prompt-based LM approaches tend to be biased, often assigning a…

机器学习 · 计算机科学 2025-09-09 Jiexia Ye , Weiqi Zhang , Ziyue Li , Jia Li , Meng Zhao , Fugee Tsung

Large Language Models (LLMs) offer the potential for automatic time series analysis and reporting, which is a critical task across many domains, spanning healthcare, finance, climate, energy, and many more. In this paper, we propose a…

计算与语言 · 计算机科学 2024-10-10 Elizabeth Fons , Rachneet Kaur , Soham Palande , Zhen Zeng , Tucker Balch , Manuela Veloso , Svitlana Vyetrenko

The topic of Multivariate Time Series Anomaly Detection (MTSAD) has grown rapidly over the past years, with a steady rise in publications and Deep Learning (DL) models becoming the dominant paradigm. To address the lack of systematization…

机器学习 · 统计学 2026-04-27 Bruna Alves , Armando J. Pinho , Sónia Gouveia

Time-series anomaly detection plays an important role in engineering processes, like development, manufacturing and other operations involving dynamic systems. These processes can greatly benefit from advances in the field, as…

机器学习 · 计算机科学 2024-11-22 Lucas Correia , Jan-Christoph Goos , Philipp Klein , Thomas Bäck , Anna V. Kononova

Time series analysis is crucial in real-world applications, yet traditional methods focus on isolated tasks only, and recent studies on time series reasoning remain limited to either single-step inference or are constrained to natural…

机器学习 · 计算机科学 2026-04-13 Wen Ye , Wei Yang , Defu Cao , Yizhou Zhang , Lumingyuan Tang , Jie Cai , Yan Liu

Recent advancements in time series forecasting have explored augmenting models with text or vision modalities to improve accuracy. While text provides contextual understanding, it often lacks fine-grained temporal details. Conversely,…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Siru Zhong , Weilin Ruan , Ming Jin , Huan Li , Qingsong Wen , Yuxuan Liang

Time series anomaly detection (TSAD) finds many applications such as monitoring environmental sensors, industry KPIs, patient biomarkers, etc. A two-fold challenge for TSAD is a versatile and unsupervised model that can detect various…

机器学习 · 计算机科学 2025-05-07 Boje Deforce , Meng-Chieh Lee , Bart Baesens , Estefanía Serral Asensio , Jaemin Yoo , Leman Akoglu

Time series foundation models (TSFMs) have demonstrated increasing capabilities due to their extensive pretraining on large volumes of diverse time series data. Consequently, the quality of time series data is crucial to TSFM performance,…

机器学习 · 计算机科学 2026-03-11 Shunyu Wu , Tianyue Li , Yixuan Leng , Jingyi Suo , Jian Lou , Dan Li , See-Kiong Ng

Time series anomaly detection plays a critical role in many dynamic systems. Despite its importance, previous approaches have primarily relied on unimodal numerical data, overlooking the importance of complementary information from other…

机器学习 · 计算机科学 2026-03-24 Shiyan Hu , Jianxin Jin , Yang Shu , Peng Chen , Bin Yang , Chenjuan Guo

Data-driven health monitoring of power converters remains limited by poor generalization to unseen operating conditions. This work addresses this out-of-distribution (OOD) challenge by building a domain-specific time-series foundation model…

系统与控制 · 电气工程与系统科学 2025-11-12 Xinyuan Liao , Xinyue Zhang , Xing Wei , Junwei Liu , Shuai Zhao , Siqi Bu , Yi Zhang

Conventional forecasting methods rely on unimodal time series data, limiting their ability to exploit rich textual information. Recently, large language models (LLMs) and time series foundation models (TSFMs) have demonstrated powerful…

机器学习 · 计算机科学 2025-05-16 Chengsen Wang , Qi Qi , Zhongwen Rao , Lujia Pan , Jingyu Wang , Jianxin Liao

Deep learning has emerged as the most promising approach in various fields; however, when the distributions of training and test data are different (domain shift), the performance of deep learning models can degrade. Semi-supervised domain…

机器学习 · 计算机科学 2025-08-13 Seonyoung Kim , Dongil Kim