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Temporal Knowledge Graph Question Answering (TKGQA) is challenging because it requires multi-hop reasoning under complex temporal constraints. Recent LLM-based approaches have improved semantic modeling for this task, but many still rely on…

Computation and Language · Computer Science 2026-03-26 Xufei Lv , Jiahui Yang , Haoyuan Sun , Xialin Su , Zhiliang Tian , Yifu Gao , Linbo Qiao , Houde Liu

Reasoning is a fundamental cognitive process underlying inference, problem-solving, and decision-making. While large language models (LLMs) demonstrate strong reasoning capabilities in closed-world settings, they struggle in open-ended and…

Time series analysis is essential for comprehending the complexities inherent in various realworld systems and applications. Although large language models (LLMs) have recently made significant strides, the development of artificial general…

Machine Learning · Computer Science 2024-06-04 Ming Jin , Yifan Zhang , Wei Chen , Kexin Zhang , Yuxuan Liang , Bin Yang , Jindong Wang , Shirui Pan , Qingsong Wen

Agentic reinforcement learning has advanced large language models (LLMs) to reason through long chain-of-thought trajectories while interleaving external tool use. Existing approaches assume a fixed inventory of tools, limiting LLM agents'…

Computation and Language · Computer Science 2025-12-16 Jiaru Zou , Ling Yang , Yunzhe Qi , Sirui Chen , Mengting Ai , Ke Shen , Jingrui He , Mengdi Wang

Large Language Model (LLM)-powered Multi-agent systems (MAS) have achieved state-of-the-art results on various complex reasoning tasks. Recent works have proposed techniques to automate the design of MASes, eliminating the need for manual…

Artificial Intelligence · Computer Science 2026-05-20 Bohan Yao , Shiva Krishna Reddy Malay , Vikas Yadav

Time series are ubiquitous in real-world scenarios and crucial for applications ranging from energy management to traffic control. Consequently, the ability to reason over time series is a fundamental skill for generalist models to solve…

Artificial Intelligence · Computer Science 2026-05-11 Fangxu Yu , Xingang Guo , Lingzhi Yuan , Haoqiang Kang , Hongyu Zhao , Lianhui Qin , Furong Huang , Bin Hu , Tianyi Zhou

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…

Machine Learning · Computer Science 2026-05-21 Zesen Wang , Lijuan Lan , Yonggang Li

The proliferation of online news poses a challenge to extracting structured timelines from unstructured content. While recent studies have shown that Large Language Models (LLMs) can assist Timeline Summarization (TLS), these approaches…

Computation and Language · Computer Science 2026-05-14 Liancheng Zhang , Xiaoxi Li , Zhicheng Dou

Reasoning about time is essential for Large Language Models (LLMs) to understand the world. Previous works focus on solving specific tasks, primarily on time-sensitive question answering. While these methods have proven effective, they…

Computation and Language · Computer Science 2024-08-20 Zhaochen Su , Jun Zhang , Tong Zhu , Xiaoye Qu , Juntao Li , Min Zhang , Yu Cheng

The creation of high-quality datasets to improve Large Language Model (LLM) reasoning remains a significant challenge, as current methods often suffer from generating low-quality/incorrect answers and limited information richness from…

Computation and Language · Computer Science 2026-01-09 Xianyang Liu , Yilin Liu , Shuai Wang , Hao Cheng , Andrew Estornell , Yuzhi Zhao , Jun Shu , Jiaheng Wei

We introduce TimeSeriesGym, a scalable benchmarking framework for evaluating Artificial Intelligence (AI) agents on time series machine learning engineering challenges. Existing benchmarks lack scalability, focus narrowly on model building…

Machine Learning · Computer Science 2025-05-20 Yifu Cai , Xinyu Li , Mononito Goswami , Michał Wiliński , Gus Welter , Artur Dubrawski

While large language models (LLMs) have demonstrated remarkable reasoning capabilities, they are not without their flaws and inaccuracies. Recent studies have introduced various methods to mitigate these limitations. Temporal reasoning…

Computation and Language · Computer Science 2024-10-10 Siheng Xiong , Ali Payani , Ramana Kompella , Faramarz Fekri

Agentic task-solving with Large Language Models (LLMs) requires multi-turn, multi-step interactions, often involving complex function calls and dynamic user-agent exchanges. Existing simulation-based data generation methods for such…

Computation and Language · Computer Science 2026-02-16 Xingshan Zeng , Weiwen Liu , Lingzhi Wang , Liangyou Li , Fei Mi , Yasheng Wang , Lifeng Shang , Xin Jiang , Qun Liu

Time series data are integral to critical applications across domains such as finance, healthcare, transportation, and environmental science. While recent work has begun to explore multi-task time series question answering (QA), current…

Large language models (LLMs) have emerged as promising tools for assisting in medical tasks, yet processing Electronic Health Records (EHRs) presents unique challenges due to their longitudinal nature. While LLMs' capabilities to perform…

Artificial Intelligence · Computer Science 2025-03-07 Hejie Cui , Alyssa Unell , Bowen Chen , Jason Alan Fries , Emily Alsentzer , Sanmi Koyejo , Nigam Shah

Recent breakthroughs in Large Language Models (LLMs) have led to the emergence of agentic AI systems that extend beyond the capabilities of standalone models. By empowering LLMs to perceive external environments, integrate multimodal…

Artificial Intelligence · Computer Science 2025-03-24 Chengkai Huang , Junda Wu , Yu Xia , Zixu Yu , Ruhan Wang , Tong Yu , Ruiyi Zhang , Ryan A. Rossi , Branislav Kveton , Dongruo Zhou , Julian McAuley , Lina Yao

Memory enables Large Language Model (LLM) agents to perceive, store, and use information from past dialogues, which is essential for personalization. However, existing methods fail to properly model the temporal dimension of memory in two…

Artificial Intelligence · Computer Science 2026-01-13 Miao Su , Yucan Guo , Zhongni Hou , Long Bai , Zixuan Li , Yufei Zhang , Guojun Yin , Wei Lin , Xiaolong Jin , Jiafeng Guo , Xueqi Cheng

Large Language Models (LLMs) have emerged as one of the most significant technological advancements in artificial intelligence in recent years. Their ability to understand, generate, and reason with natural language has transformed how we…

Artificial Intelligence · Computer Science 2025-07-03 Yanfei Zhang

Explainable Reinforcement Learning (XRL) has emerged as a promising approach in improving the transparency of Reinforcement Learning (RL) agents. However, there remains a gap between complex RL policies and domain experts, due to the…

Artificial Intelligence · Computer Science 2025-09-09 Haechang Kim , Hao Chen , Can Li , Jong Min Lee

The explosion of Time Series (TS) data, driven by advancements in technology, necessitates sophisticated analytical methods. Modern management systems increasingly rely on analyzing this data, highlighting the importance of effcient…

Machine Learning · Computer Science 2025-03-27 Seyedeh Azadeh Fallah Mortezanejad , Ruochen Wang