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The growing interest in Temporal Graph Neural Networks (TGNNs) stems from their ability to model complex dynamics and deliver superior performance. However, TGNNs encounter fundamental challenges in capturing long-term dependencies and…

机器学习 · 计算机科学 2026-05-26 Hongjiang Chen , Pengfei Jiao , Ming Du , Xuan Guo , Zhidong Zhao , Di Jin , Xiao Liu

In multivariate time series forecasting (MTSF), existing strategies for processing sequences are typically categorized as channel-independent and channel-mixing. The former treats all temporal information of each variable as a token,…

人工智能 · 计算机科学 2025-07-08 Bing Fan , Shusen Ma , Yun-Bo Zhao , Yu Kang

Multivariate time series (MTS) forecasting is vital across various domains but remains challenging due to the need to simultaneously model temporal and inter-variate dependencies. Existing channel-dependent models, where Transformer-based…

机器学习 · 计算机科学 2025-02-03 Junwoo Ha , Hyukjae Kwon , Sungsoo Kim , Kisu Lee , Seungjae Park , Ha Young Kim

Irregularly sampled multivariate time series (ISMTS) are prevalent in reality. Due to their non-uniform intervals between successive observations and varying sampling rates among series, the channel-independent (CI) strategy, which has been…

机器学习 · 计算机科学 2024-12-18 Jiexi Liu , Meng Cao , Songcan Chen

Accurate forecasting of passenger flows is critical for maintaining the efficiency and resilience of airport operations. Recent advances in patch-based Transformer models have shown strong potential in various time series forecasting tasks.…

机器学习 · 计算机科学 2025-12-16 Wenbo Du , Lingling Han , Ying Xiong , Ling Zhang , Biyue Li , Yisheng Lv , Tong Guo

Although transformer-based methods have achieved great success in multi-scale temporal pattern interaction modeling, two key challenges limit their further development: (1) Individual time points contain less semantic information, and…

机器学习 · 计算机科学 2024-11-01 Zongjiang Shang , Ling Chen , Binqing wu , Dongliang Cui

Time series data is ubiquitous in research as well as in a wide variety of industrial applications. Effectively analyzing the available historical data and providing insights into the far future allows us to make effective decisions. Recent…

机器学习 · 计算机科学 2022-10-24 Kiran Madhusudhanan , Johannes Burchert , Nghia Duong-Trung , Stefan Born , Lars Schmidt-Thieme

To the naked eye, stock prices are considered chaotic, dynamic, and unpredictable. Indeed, it is one of the most difficult forecasting tasks that hundreds of millions of retail traders and professional traders around the world try to do…

计算金融 · 定量金融 2025-02-17 Shuozhe Li , Zachery B Schulwol , Risto Miikkulainen

Time series forecasting (TSF) faces challenges in modeling complex intra-channel temporal dependencies and inter-channel correlations. Although recent research has highlighted the efficiency of linear architectures in capturing global…

机器学习 · 计算机科学 2026-01-29 Gawon Lee , Hanbyeol Park , Minseop Kim , Dohee Kim , Hyerim Bae

Transformers have achieved superior performances in many tasks in natural language processing and computer vision, which also triggered great interest in the time series community. Among multiple advantages of Transformers, the ability to…

机器学习 · 计算机科学 2023-05-15 Qingsong Wen , Tian Zhou , Chaoli Zhang , Weiqi Chen , Ziqing Ma , Junchi Yan , Liang Sun

Multivariate time series classification is a crucial task in data mining, attracting growing research interest due to its broad applications. While many existing methods focus on discovering discriminative patterns in time series,…

机器学习 · 计算机科学 2024-12-24 Wenjie Xi , Rundong Zuo , Alejandro Alvarez , Jie Zhang , Byron Choi , Jessica Lin

The self-attention mechanism in Transformer architecture, invariant to sequence order, necessitates positional embeddings to encode temporal order in time series prediction. We argue that this reliance on positional embeddings restricts the…

机器学习 · 计算机科学 2024-08-21 Yongbo Yu , Weizhong Yu , Feiping Nie , Xuelong Li

Multivariate time-series forecasting holds immense value across diverse applications, requiring methods to effectively capture complex temporal and inter-variable dynamics. A key challenge lies in uncovering the intrinsic patterns that…

机器学习 · 计算机科学 2025-03-12 Liang Yu , Lai Tu , Xiang Bai

Transformer-based models have become state-of-the-art tools in various machine learning tasks, including time series classification, yet their complexity makes understanding their internal decision-making challenging. Existing…

机器学习 · 计算机科学 2025-11-27 Matīss Kalnāre , Sofoklis Kitharidis , Thomas Bäck , Niki van Stein

In the manufacturing process, sensor data collected from equipment is crucial for building predictive models to manage processes and improve productivity. However, in the field, it is challenging to gather sufficient data to build robust…

机器学习 · 计算机科学 2024-07-10 Gyeong Taek Lee , Oh-Ran Kwon

Transformers have gained popularity in time series forecasting for their ability to capture long-sequence interactions. However, their high memory and computing requirements pose a critical bottleneck for long-term forecasting. To address…

机器学习 · 计算机科学 2023-12-12 Vijay Ekambaram , Arindam Jati , Nam Nguyen , Phanwadee Sinthong , Jayant Kalagnanam

Accurate blood glucose prediction can enable novel interventions for type 1 diabetes treatment, including personalized insulin and dietary adjustments. Although recent advances in transformer-based architectures have demonstrated the power…

定量方法 · 定量生物学 2025-05-15 Meryem Altin Karagoz , Marc D. Breton , Anas El Fathi

In recent years, the application of transformer-based models in time-series forecasting has received significant attention. While often demonstrating promising results, the transformer architecture encounters challenges in fully exploiting…

机器学习 · 计算机科学 2025-02-12 Artyom Stitsyuk , Jaesik Choi

Convolution neural networks (CNNs) have succeeded in compressive image sensing. However, due to the inductive bias of locality and weight sharing, the convolution operations demonstrate the intrinsic limitations in modeling the long-range…

图像与视频处理 · 电气工程与系统科学 2022-01-03 Dongjie Ye , Zhangkai Ni , Hanli Wang , Jian Zhang , Shiqi Wang , Sam Kwong

Dynamic graph learning plays a pivotal role in modeling evolving relationships over time, especially for temporal link prediction tasks in domains such as traffic systems, social networks, and recommendation platforms. While…

机器学习 · 计算机科学 2025-11-18 Tao Zou , Chengfeng Wu , Tianxi Liao , Junchen Ye , Bowen Du