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Detecting anomalies in time series data is crucial for finance, healthcare, sensor networks, and industrial monitoring applications. However, time series anomaly detection often suffers from sparse labels, complex temporal patterns, and…

机器学习 · 计算机科学 2026-01-07 Bahareh Golchin , Banafsheh Rekabdar , Danielle Justo

Time series analysis provides essential insights for real-world system dynamics and informs downstream decision-making, yet most existing methods often overlook the rich contextual signals present in auxiliary modalities. To bridge this…

机器学习 · 计算机科学 2026-03-24 Yushan Jiang , Wenchao Yu , Geon Lee , Dongjin Song , Kijung Shin , Wei Cheng , Yanchi Liu , Haifeng Chen

By encoding time series as a string of numerical digits, we can frame time series forecasting as next-token prediction in text. Developing this approach, we find that large language models (LLMs) such as GPT-3 and LLaMA-2 can surprisingly…

机器学习 · 计算机科学 2024-08-13 Nate Gruver , Marc Finzi , Shikai Qiu , Andrew Gordon Wilson

Time series analysis is crucial in fields like finance, transportation, and industry. However, traditional models often focus solely on temporal features, limiting their ability to capture underlying information. This paper proposes a novel…

机器学习 · 计算机科学 2025-03-12 Shule Hao , Junpeng Bao , Chuncheng Lu

The proliferation of edge devices has generated an unprecedented volume of time series data across different domains, motivating various well-customized methods. Recently, Large Language Models (LLMs) have emerged as a new paradigm for time…

机器学习 · 计算机科学 2025-05-06 Chenxi Liu , Shaowen Zhou , Qianxiong Xu , Hao Miao , Cheng Long , Ziyue Li , Rui Zhao

Large Language Models (LLMs) have demonstrated impressive performance in time series analysis and seems to understand the time temporal relationship well than traditional transformer-based approaches. However, since LLMs are not designed…

机器学习 · 计算机科学 2025-05-27 Liangwei Nathan Zheng , Chang George Dong , Wei Emma Zhang , Lin Yue , Miao Xu , Olaf Maennel , Weitong Chen

Large Language Models (LLMs) have been applied to time series forecasting tasks, leveraging pre-trained language models as the backbone and incorporating textual data to purportedly enhance the comprehensive capabilities of LLMs for time…

计算与语言 · 计算机科学 2025-04-15 Zhengke Sun , Hangwei Qian , Ivor Tsang

We present a novel prompt design for Large Language Models (LLMs) tailored to Asynchronous Time Series. Unlike regular time series, which assume values at evenly spaced time points, asynchronous time series consist of timestamped events…

机器学习 · 计算机科学 2025-02-05 Shubham Gupta , Thibaut Durand , Graham Taylor , Lilian W. Białokozowicz

Large language models (LLMs) have been applied in many fields and have developed rapidly in recent years. As a classic machine learning task, time series forecasting has recently been boosted by LLMs. Recent works treat large language…

计算与语言 · 计算机科学 2024-12-31 Hua Tang , Chong Zhang , Mingyu Jin , Qinkai Yu , Zhenting Wang , Xiaobo Jin , Yongfeng Zhang , Mengnan Du

Large Language Models (LLMs) have gained popularity in time series forecasting, but their potential for anomaly detection remains largely unexplored. Our study investigates whether LLMs can understand and detect anomalies in time series…

机器学习 · 计算机科学 2025-03-13 Zihao Zhou , Rose Yu

Time series forecasting is a long-standing and highly challenging research topic. Recently, driven by the rise of large language models (LLMs), research has increasingly shifted from purely time series methods toward harnessing textual…

人工智能 · 计算机科学 2025-09-03 Shiqiao Zhou , Holger Schöner , Huanbo Lyu , Edouard Fouché , Shuo Wang

The capabilities of large language models (LLMs) are widely regarded as relying on autoregressive models (ARMs). We challenge this notion by introducing LLaDA, a diffusion model trained from scratch under the pre-training and supervised…

计算与语言 · 计算机科学 2025-10-21 Shen Nie , Fengqi Zhu , Zebin You , Xiaolu Zhang , Jingyang Ou , Jun Hu , Jun Zhou , Yankai Lin , Ji-Rong Wen , Chongxuan Li

While LLMs have demonstrated remarkable potential in time series forecasting, their practical deployment remains constrained by excessive computational demands and memory footprints. Existing LLM-based approaches typically suffer from three…

计算与语言 · 计算机科学 2025-03-11 Haoran Fan , Bin Li , Yixuan Weng , Shoujun Zhou

Mathematical equations have been unreasonably effective in describing complex natural phenomena across various scientific disciplines. However, discovering such insightful equations from data presents significant challenges due to the…

机器学习 · 计算机科学 2025-03-21 Parshin Shojaee , Kazem Meidani , Shashank Gupta , Amir Barati Farimani , Chandan K Reddy

Human daily behavior unfolds as complex sequences shaped by intentions, preferences, and context. Effectively modeling these behaviors is crucial for intelligent systems such as personal assistants and recommendation engines. While recent…

计算与语言 · 计算机科学 2026-04-28 Fanjin Meng , Jingtao Ding , Nian Li , Yizhou Sun , Yong Li

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…

机器学习 · 计算机科学 2024-08-12 Rui Cao , Qiao Wang

Time series forecasting aims to model temporal dependencies among variables for future state inference, holding significant importance and widespread applications in real-world scenarios. Although deep learning-based methods have achieved…

机器学习 · 计算机科学 2026-05-21 Zesen Wang , Lijuan Lan , Yonggang Li

The trade-off between expressiveness and interpretability remains a core challenge when building human-centric predictive models for classification and decision-making. While symbolic rules offer interpretability, they often lack…

人工智能 · 计算机科学 2024-06-26 Ruochen Wang , Si Si , Felix Yu , Dorothea Wiesmann , Cho-Jui Hsieh , Inderjit Dhillon

Large Language Models (LLMs) have recently demonstrated impressive capabilities in natural language processing due to their strong generalization and sequence modeling capabilities. However, their direct application to time series…

计算与语言 · 计算机科学 2025-08-12 Yanru Sun , Emadeldeen Eldele , Zongxia Xie , Yucheng Wang , Wenzhe Niu , Qinghua Hu , Chee Keong Kwoh , Min Wu

Time series anomaly detection (TSAD) is of widespread interest across many industries, including finance, healthcare, and manufacturing. Despite the development of numerous automatic methods for detecting anomalies, human oversight remains…

计算与语言 · 计算机科学 2025-03-31 Alan Yang , Yulin Chen , Sean Lee , Venus Montes