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Related papers: TS-Reasoner: Domain-Oriented Time Series Inference…

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Spatio-temporal data mining plays a pivotal role in informed decision making across diverse domains. However, existing models are often restricted to narrow tasks, lacking the capacity for multi-task inference and complex long-form…

Computation and Language · Computer Science 2025-06-26 Kethmi Hirushini Hettige , Jiahao Ji , Cheng Long , Shili Xiang , Gao Cong , Jingyuan Wang

Time Series Language Models (TSLMs) promise reasoning over real-world temporal data, but their ability to retrieve and reason over long time-series remains largely untested. We introduce TS-Haystack, a multi-domain retrieval benchmark with…

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

The paper presents our system developed for table question answering (TQA). TQA tasks face challenges due to the characteristics of real-world tabular data, such as large size, incomplete column semantics, and entity ambiguity. To address…

Artificial Intelligence · Computer Science 2025-07-14 Sishi Xiong , Dakai Wang , Yu Zhao , Jie Zhang , Changzai Pan , Haowei He , Xiangyu Li , Wenhan Chang , Zhongjiang He , Shuangyong Song , Yongxiang Li

Scaling inference-time compute for Large Language Models (LLMs) has unlocked unprecedented reasoning capabilities. However, existing inference-time scaling methods typically rely on inefficient and suboptimal discrete search algorithms or…

Machine Learning · Computer Science 2026-03-06 Peihao Wang , Ruisi Cai , Zhen Wang , Hongyuan Mei , Qiang Liu , Pan Li , Zhangyang Wang

Early artificial intelligence paradigms exhibited separated cognitive functions: Neural Networks focused on "perception-representation," Reinforcement Learning on "decision-making-behavior," and Symbolic AI on "knowledge-reasoning." With…

Artificial Intelligence · Computer Science 2026-01-07 Zhi Liu , Guangzhi Wang

Large Language Models (LLMs) have shown impressive performance across various domains, but their ability to perform molecular reasoning remains underexplored. Existing methods mostly rely on general-purpose prompting, which lacks…

Time series data are central to domains such as finance, healthcare, and cloud computing, yet existing benchmarks for evaluating various large language models (LLMs) on temporal tasks remain scattered and unsystematic. To bridge this gap,…

Databases · Computer Science 2026-02-10 Yao Yin , Zhenyu Xiao , Musheng Li , Yiwen Liu , Sutong Nan , Yiting He , Ruiqi Wang , Zhenwei Zhang , Qingmin Liao , Yuantao Gu

Recent progress at the intersection of large language models (LLMs) and time series (TS) analysis has revealed both promise and fragility. While LLMs can reason over temporal structure given carefully engineered context, they often struggle…

Artificial Intelligence · Computer Science 2026-01-28 Patara Trirat , Jin Myung Kwak , Jay Heo , Heejun Lee , Sung Ju Hwang

Rule-based reasoning is acknowledged as one of the fundamental problems of reasoning. While recent studies show that large reasoning models (LRMs) have remarkable reasoning capabilities enhanced by reinforcement learning (RL), real…

Computation and Language · Computer Science 2026-02-17 Yang Liu , Jiaqi Li , Zilong Zheng

Time series forecasting is central to decision-making in domains as diverse as energy, finance, climate, and public health. In practice, forecasters face thousands of short, noisy series that vary in frequency, quality, and horizon, where…

Machine Learning · Computer Science 2025-10-08 Haokun Zhao , Xiang Zhang , Jiaqi Wei , Yiwei Xu , Yuting He , Siqi Sun , Chenyu You

Time-series diagnostic reasoning is essential for many applications, yet existing solutions face a persistent gap: general reasoning large language models (GRLMs) possess strong reasoning skills but lack the domain-specific knowledge to…

Understanding time series data is fundamental to many real-world applications. Recent work explores multimodal large language models (MLLMs) to enhance time series understanding with contextual information beyond numerical signals. This…

Machine Learning · Computer Science 2026-02-03 Yaxuan Kong , Yiyuan Yang , Shiyu Wang , Chenghao Liu , Yuxuan Liang , Ming Jin , Stefan Zohren , Dan Pei , Yan Liu , Qingsong Wen

To advance time series forecasting (TSF), various methods have been proposed to improve prediction accuracy, evolving from statistical techniques to data-driven deep learning architectures. Despite their effectiveness, most existing methods…

Machine Learning · Computer Science 2026-04-21 Yitong Zhou , Yucong Luo , Mingyue Cheng , Qi Liu , Jiahao Wang , Daoyu Wang , Enhong Chen

Understanding time series is crucial for its application in real-world scenarios. Recently, large language models (LLMs) have been increasingly applied to time series tasks, leveraging their strong language capabilities to enhance various…

Artificial Intelligence · Computer Science 2026-01-06 Zhe Xie , Zeyan Li , Xiao He , Longlong Xu , Xidao Wen , Tieying Zhang , Jianjun Chen , Rui Shi , Dan Pei

Complex numerical time series analysis often demands multi-step reasoning capabilities beyond current models' reach. Tasks like medical diagnosis and weather forecasting require sequential reasoning processes - including counterfactual…

Machine Learning · Computer Science 2026-03-17 Felix Parker , Nimeesha Chan , Chi Zhang , Kimia Ghobadi

The underperformance of existing multimodal large language models for time series reasoning lies in the absence of rationale priors that connect temporal observations to their downstream outcomes, which leads models to rely on superficial…

Artificial Intelligence · Computer Science 2026-01-07 Qingxiang Liu , Zhiqing Cui , Xiaoliang Luo , Yuqian Wu , Zhuoyang Jiang , Huaiyu Wan , Sheng Sun , Lvchun Wang , Wei Yu , Yuxuan Liang

With the advancement of large language models (LLMs), diverse time series analysis tasks are reformulated as time series question answering (TSQA) through a unified natural language interface. However, existing LLM-based approaches largely…

Computation and Language · Computer Science 2025-12-30 Chen Su , Yuanhe Tian , Yan Song

Time series analysis underpins many real-world applications, yet existing time-series-specific methods and pretrained large-model-based approaches remain limited in integrating intuitive visual reasoning and generalizing across tasks with…

Artificial Intelligence · Computer Science 2026-02-04 Weilin Ruan , Yuxuan Liang

Multi-modal large language models (MLLMs) have enabled numerous advances in understanding and reasoning in domains like vision, but we have not yet seen this broad success for time-series. Although prior works on time-series MLLMs have…

Machine Learning · Computer Science 2024-12-05 Winnie Chow , Lauren Gardiner , Haraldur T. Hallgrímsson , Maxwell A. Xu , Shirley You Ren