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The time series classification literature has expanded rapidly over the last decade, with many new classification approaches published each year. Prior research has mostly focused on improving the accuracy and efficiency of classifiers,…

Machine Learning · Computer Science 2020-06-03 Thach Le Nguyen , Severin Gsponer , Iulia Ilie , Martin O'Reilly , Georgiana Ifrim

Recently, there has been a growing interest in leveraging pre-trained large language models (LLMs) for various time series applications. However, the semantic space of LLMs, established through the pre-training, is still underexplored and…

Machine Learning · Computer Science 2024-07-09 Zijie Pan , Yushan Jiang , Sahil Garg , Anderson Schneider , Yuriy Nevmyvaka , Dongjin Song

We build upon time-series classification by leveraging the capabilities of Vision Language Models (VLMs). We find that VLMs produce competitive results after two or less epochs of fine-tuning. We develop a novel approach that incorporates…

Artificial Intelligence · Computer Science 2025-01-22 Vinay Prithyani , Mohsin Mohammed , Richa Gadgil , Ricardo Buitrago , Vinija Jain , Aman Chadha

Recently, remarkable progress has been made over large language models (LLMs), demonstrating their unprecedented capability in varieties of natural language tasks. However, completely training a large general-purpose model from the scratch…

Machine Learning · Computer Science 2024-02-06 Yushan Jiang , Zijie Pan , Xikun Zhang , Sahil Garg , Anderson Schneider , Yuriy Nevmyvaka , Dongjin Song

Predicting human mobility is inherently challenging due to complex long-range dependencies and multi-scale periodic behaviors. To address this, we introduce RHYTHM (Reasoning with Hierarchical Temporal Tokenization for Human Mobility), a…

Machine Learning · Computer Science 2026-02-25 Haoyu He , Haozheng Luo , Yan Chen , Qi R. Wang

Multi-modal language model has made advanced progress in vision and audio, but still faces significant challenges in dealing with complex reasoning tasks in the time series domain. The reasons are twofold. First, labels for multi-modal time…

Machine Learning · Computer Science 2025-03-10 Haochuan Zhang , Chunhua Yang , Jie Han , Liyang Qin , Xiaoli Wang

Large language models (LLMs) have revolutionized video-based computer vision applications, including action recognition, anomaly detection, and video summarization. Videos inherently pose unique challenges, combining spatial complexity with…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Xi Ding , Lei Wang

Large Language Models (LLMs) have achieved remarkable success in various fields, prompting several studies to explore their potential in recommendation systems. However, these attempts have so far resulted in only modest improvements over…

Information Retrieval · Computer Science 2024-09-20 Junyi Chen , Lu Chi , Bingyue Peng , Zehuan Yuan

Despite the recent success of large language models (LLMs) in time-series forecasting, most existing methods still adopt a Deep Synchronous Fusion strategy, where dense interactions between textual and temporal features are enforced at…

Machine Learning · Computer Science 2026-04-15 Fan Zhang , Shiming Fan , Hua Wang

Interpreting hierarchical structures latent in language is a key limitation of current language models (LMs). While previous research has implicitly leveraged these hierarchies to enhance LMs, approaches for their explicit encoding are yet…

Computation and Language · Computer Science 2024-11-22 Yuan He , Zhangdie Yuan , Jiaoyan Chen , Ian Horrocks

Research in robotic planning with temporal logic specifications, such as Linear Temporal Logic (LTL), has relied on single formulas. However, as task complexity increases, LTL formulas become lengthy, making them difficult to interpret and…

Robotics · Computer Science 2025-06-06 Xusheng Luo , Changliu Liu

This paper addresses planning problems for mobile robots. We consider missions that require accomplishing multiple high-level sub-tasks, expressed in natural language (NL), in a temporal and logical order. To formally define the mission, we…

Robotics · Computer Science 2025-09-18 Jun Wang , Jiaming Tong , Kaiyuan Tan , Yevgeniy Vorobeychik , Yiannis Kantaros

Time series classification (TSC) is a core machine learning problem with broad applications. Recently there has been growing interest in repurposing large language models (LLMs) for TSC, motivated by their strong reasoning and…

Machine Learning · Computer Science 2026-01-16 Hansen He , Shuheng Li

Time Series Forecasting (TSF) is critical in many real-world domains like financial planning and health monitoring. Recent studies have revealed that Large Language Models (LLMs), with their powerful in-contextual modeling capabilities,…

Machine Learning · Computer Science 2025-03-14 Jialiang Tang , Shuo Chen , Chen Gong , Jing Zhang , Dacheng Tao

Time series forecasting is important for applications spanning energy markets, climate analysis, and traffic management. However, existing methods struggle to effectively integrate exogenous texts and align them with the probabilistic…

Machine Learning · Computer Science 2025-07-30 Yueyang Yao , Jiajun Li , Xingyuan Dai , MengMeng Zhang , Xiaoyan Gong , Fei-Yue Wang , Yisheng Lv

Eye-tracking data reveals valuable insights into users' cognitive states but is difficult to analyze due to its structured, non-linguistic nature. While large language models (LLMs) excel at reasoning over text, they struggle with temporal…

Human-Computer Interaction · Computer Science 2025-07-25 Dongyang Guo , Yasmeen Abdrabou , Enkeleda Thaqi , Enkelejda Kasneci

Traditional time series analysis has long relied on pattern recognition, trained on static and well-established benchmarks. However, in real-world settings -- where policies shift, human behavior adapts, and unexpected events unfold --…

Artificial Intelligence · Computer Science 2025-10-16 Xinlei Wang , Mingtian Tan , Jing Qiu , Junhua Zhao , Jinjin Gu

This research examines the use of Large Language Models (LLMs) in predicting time series, with a specific focus on the LLMTIME model. Despite the established effectiveness of LLMs in tasks such as text generation, language translation, and…

Machine Learning · Computer Science 2024-08-12 Rui Cao , Qiao Wang

Deep learning-based algorithms, e.g., convolutional networks, have significantly facilitated multivariate time series classification (MTSC) task. Nevertheless, they suffer from the limitation in modeling long-range dependence due to the…

Machine Learning · Computer Science 2023-02-21 Mingyue Cheng , Qi Liu , Zhiding Liu , Zhi Li , Yucong Luo , Enhong Chen

This paper explores the potential of large language models (LLMs) to generate financial reports from time series data. We propose a framework encompassing prompt engineering, model selection, and evaluation. We introduce an automated…

Computation and Language · Computer Science 2025-07-02 Elizabeth Fons , Elena Kochkina , Rachneet Kaur , Zhen Zeng , Berowne Hlavaty , Charese Smiley , Svitlana Vyetrenko , Manuela Veloso