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We study time-series classification (TSC), a fundamental task of time-series data mining. Prior work has approached TSC from two major directions: (1) similarity-based methods that classify time-series based on the nearest neighbors, and…

Machine Learning · Computer Science 2022-01-07 Daochen Zha , Kwei-Herng Lai , Kaixiong Zhou , Xia Hu

Human motion generative modeling or synthesis aims to characterize complicated human motions of daily activities in diverse real-world environments. However, current research predominantly focuses on either low-level, short-period motions…

Robotics · Computer Science 2025-06-03 Jusheng Zhang , Jinzhou Tang , Sidi Liu , Mingyan Li , Sheng Zhang , Jian Wang , Keze Wang

Despite recent progress in time-series foundation models, challenges persist in improving representation learning and adapting to diverse downstream tasks. We introduce a General Time-series Model (GTM), which advances representation…

Machine Learning · Computer Science 2026-03-13 Cheng He , Xu Huang , Gangwei Jiang , Zhaoyi Li , Defu Lian , Hong Xie , Enhong Chen , Xijie Liang , Zengrong Zheng , Patrick P. C. Lee

Many real world graphs contain time domain information. Temporal Graph Neural Networks capture temporal information as well as structural and contextual information in the generated dynamic node embeddings. Researchers have shown that these…

Machine Learning · Computer Science 2022-07-04 Hongkuan Zhou , Da Zheng , Israt Nisa , Vasileios Ioannidis , Xiang Song , George Karypis

Human Activity Recognition using wearable inertial sensors is foundational to healthcare monitoring, fitness analytics, and context-aware computing, yet its deployment is hindered by cross-user variability arising from heterogeneous…

Machine Learning · Computer Science 2026-03-18 Xiaozhou Ye , Feng Jiang , Zihan Wang , Xiulai Wang , Yutao Zhang , Kevin I-Kai Wang

As generative models become ubiquitous, there is a critical need for fine-grained control over the generation process. Yet, while controlled generation methods from prompting to fine-tuning proliferate, a fundamental question remains…

Artificial Intelligence · Computer Science 2026-01-12 Emily Cheng , Carmen Amo Alonso , Federico Danieli , Arno Blaas , Luca Zappella , Pau Rodriguez , Xavier Suau

Synthetic time series are essential tools for data augmentation, stress testing, and algorithmic prototyping in quantitative finance. However, in cryptocurrency markets, characterized by 24/7 trading, extreme volatility, and rapid regime…

Statistical Finance · Quantitative Finance 2025-08-06 Yihao Ang , Qiang Wang , Qiang Huang , Yifan Bao , Xinyu Xi , Anthony K. H. Tung , Chen Jin , Zhiyong Huang

With the development of video understanding, there is a proliferation of tasks for clip-level temporal video analysis, including temporal action detection (TAD), temporal action segmentation (TAS), and generic event boundary detection…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Min Yang , Zichen Zhang , Limin Wang

Synthesizability in small molecule generative design remains a bottleneck. Existing works that do consider synthesizability can output predicted synthesis routes for generated molecules. However, there has been minimal attention in…

Biomolecules · Quantitative Biology 2025-05-14 Jeff Guo , Víctor Sabanza-Gil , Zlatko Jončev , Jeremy S. Luterbacher , Philippe Schwaller

Effectively handling temporal redundancy remains a key challenge in learning video models. Prevailing approaches often treat each set of frames independently, failing to effectively capture the temporal dependencies and redundancies…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Xiang Fan , Xiaohang Sun , Kushan Thakkar , Zhu Liu , Vimal Bhat , Ranjay Krishna , Xiang Hao

Discrete automated processes in industrial and cyber-physical systems often exhibit a repetitive structure in which successive repetitions follow a common trajectory while differing in duration, amplitude, and fine-scale dynamics. Such…

Machine Learning · Statistics 2026-05-14 Elias Reich , Saverio Messineo , Stefan Huber

Temporal networks are essential for modeling and understanding systems whose behavior varies in time, from social interactions to biological systems. Often, however, real-world data are prohibitively expensive to collect in a large scale or…

Social and Information Networks · Computer Science 2023-08-23 Antonio Longa , Giulia Cencetti , Sune Lehmann , Andrea Passerini , Bruno Lepri

Existing GUI agent models relying on coordinate-based one-step visual grounding struggle with generalizing to varying input resolutions and aspect ratios. Alternatives introduce coordinate-free strategies yet suffer from learning under…

Machine Learning · Computer Science 2026-02-04 Xiaoce Wang , Guibin Zhang , Junzhe Li , Jinzhe Tu , Chun Li , Ming Li

Similarity-based approaches represent a promising direction for time series analysis. However, many such methods rely on parameter tuning, and some have shortcomings if the time series are multivariate (MTS), due to dependencies between…

Machine Learning · Statistics 2017-06-30 Karl Øyvind Mikalsen , Filippo Maria Bianchi , Cristina Soguero-Ruiz , Robert Jenssen

Generating synthetic financial time series data that accurately reflects real-world market dynamics holds tremendous potential for various applications, including portfolio optimization, risk management, and large scale machine learning. We…

Mathematical Finance · Quantitative Finance 2025-11-05 Chung I Lu , Julian Sester

This paper introduces a new control signal for facial motion generation: timeline control. Compared to audio and text signals, timelines provide more fine-grained control, such as generating specific facial motions with precise timing.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Yifeng Ma , Jinwei Qi , Chaonan Ji , Peng Zhang , Bang Zhang , Zhidong Deng , Liefeng Bo

Controllable generative models have been widely used to improve the realism of synthetic visual content. However, such models must handle control conditions and content generation computational requirements, resulting in generally low…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Lin Liu , Huixia Ben , Shuo Wang , Jinda Lu , Junxiang Qiu , Shengeng Tang , Yanbin Hao

Generating multivariate time series is a promising approach for sharing sensitive data in many medical, financial, and IoT applications. A common type of multivariate time series originates from a single source such as the biometric…

Machine Learning · Computer Science 2022-12-16 Ali Seyfi , Jean-Francois Rajotte , Raymond T. Ng

Diffusion models have shown great promise in data generation, yet generating time series data remains challenging due to the need to capture complex temporal dependencies and structural patterns. In this paper, we present \textit{TSGDiff},…

Machine Learning · Computer Science 2025-11-18 Lifeng Shen , Xuyang Li , Lele Long

Time series classification (TSC) is a critical task with applications in various domains, including healthcare, finance, and industrial monitoring. Due to privacy concerns and data regulations, Federated Learning has emerged as a promising…

Machine Learning · Computer Science 2025-04-25 Bruno Casella , Matthias Jakobs , Marco Aldinucci , Sebastian Buschjäger