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This paper presents a novel hierarchical framework for portfolio optimization, integrating lightweight Large Language Models (LLMs) with Deep Reinforcement Learning (DRL) to combine sentiment signals from financial news with traditional…

Portfolio Management · Quantitative Finance 2025-07-25 Benjamin Coriat , Eric Benhamou

Large language models (LLMs) have shown great progress in responding to user questions, allowing for a multitude of diverse applications. Yet, the quality of LLM outputs heavily depends on the prompt design, where a good prompt might enable…

Computation and Language · Computer Science 2025-04-16 Yuchi Liu , Jaskirat Singh , Gaowen Liu , Ali Payani , Liang Zheng

Large Language Models (LLMs) have made progress in various real-world tasks, which stimulates requirements for the evaluation of LLMs. Existing LLM evaluation methods are mainly supervised signal-based which depends on static datasets and…

Computation and Language · Computer Science 2023-09-11 Jiatong Li , Rui Li , Qi Liu

Large Vision-Language Models (LVLMs) commonly follow a paradigm that projects visual features and then concatenates them with text tokens to form a unified sequence input for Large Language Models (LLMs). However, this paradigm leads to a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xinyu Wei , Guoli Yang , Jialu Zhou , Mingyue Yang , Leqian Li , Kedi Zhang , Chunping Qiu

The development of believable, natural, and interactive digital artificial agents is a field of growing interest. Theoretical uncertainties and technical barriers present considerable challenges to the field, particularly with regards to…

Artificial Intelligence · Computer Science 2023-09-12 Maximilian Croissant , Madeleine Frister , Guy Schofield , Cade McCall

Single-agent large language model (LLM) systems struggle to simultaneously support diverse conversational functions and maintain safety in behavioral health communication. We propose a safety-aware, role-orchestrated multi-agent LLM…

Artificial Intelligence · Computer Science 2026-04-02 Ha Na Cho

We introduce ALaRM, the first framework modeling hierarchical rewards in reinforcement learning from human feedback (RLHF), which is designed to enhance the alignment of large language models (LLMs) with human preferences. The framework…

Computation and Language · Computer Science 2024-03-19 Yuhang Lai , Siyuan Wang , Shujun Liu , Xuanjing Huang , Zhongyu Wei

Modern engineering increasingly relies on vast datasets generated by experiments and simulations, driving a growing demand for efficient, reliable, and broadly applicable modeling strategies. There is also heightened interest in developing…

Artificial Intelligence · Computer Science 2025-10-03 Yang Liu , Zaid Abulawi , Abhiram Garimidi , Doyeong Lim

In this study, we introduce the concept of OKR-Agent designed to enhance the capabilities of Large Language Models (LLMs) in task-solving. Our approach utilizes both self-collaboration and self-correction mechanism, facilitated by…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Yi Zheng , Chongyang Ma , Kanle Shi , Haibin Huang

Current Large Language Model (LLM) approaches for information extraction (IE) in the healthy food policy domain are often hindered by various factors, including misinformation, specifically hallucinations, misclassifications, and omissions…

Artificial Intelligence · Computer Science 2026-04-03 Congjing Zhang , Ruoxuan Bao , Jingyu Li , Yoav Ackerman , Shuai Huang , Yanfang Su

As language models achieve increasingly human-like capabilities in conversational text generation, a critical question emerges: to what extent can these systems simulate the characteristics of specific individuals? To evaluate this, we…

Computation and Language · Computer Science 2025-06-04 Quan Shi , Carlos E. Jimenez , Stephen Dong , Brian Seo , Caden Yao , Adam Kelch , Karthik Narasimhan

Large language models (LLMs) are increasingly proposed as agents in strategic decision environments, yet their behavior in structured geopolitical simulations remains under-researched. We evaluate six popular state-of-the-art LLMs alongside…

Computation and Language · Computer Science 2026-03-03 Veronika Solopova , Viktoria Skorik , Maksym Tereshchenko , Alina Haidun , Ostap Vykhopen

Achieving expert-level performance in simulation-based training relies on the creation of complex, adaptable scenarios, a traditionally laborious and resource intensive process. Although prior research explored scenario generation for…

Artificial Intelligence · Computer Science 2025-11-12 Soham Hans , Volkan Ustun , Benjamin Nye , James Sterrett , Matthew Green

Teaching a deep reinforcement learning (RL) agent to follow instructions in multi-task environments is a challenging problem. We consider that user defines every task by a linear temporal logic (LTL) formula. However, some causal…

Robotics · Computer Science 2022-07-14 Duo Xu , Faramarz Fekri

Recently, Role-Playing Agents (RPAs) have garnered increasing attention for their potential to deliver emotional value and facilitate sociological research. However, existing studies are primarily confined to the textual modality, unable to…

Artificial Intelligence · Computer Science 2025-02-18 Yanqi Dai , Huanran Hu , Lei Wang , Shengjie Jin , Xu Chen , Zhiwu Lu

In this paper, we present a novel framework for enhancing the capabilities of large language models (LLMs) by leveraging the power of multi-agent systems. Our framework introduces a collaborative environment where multiple intelligent agent…

Artificial Intelligence · Computer Science 2023-06-07 Yashar Talebirad , Amirhossein Nadiri

An accurate differential diagnosis (DDx) is essential for patient care, shaping therapeutic decisions and influencing outcomes. Recently, Large Language Models (LLMs) have emerged as promising tools to support this process by generating a…

Artificial Intelligence · Computer Science 2025-10-07 Seungseop Lim , Gibaeg Kim , Hyunkyung Lee , Wooseok Han , Jean Seo , Jaehyo Yoo , Eunho Yang

Large Language Models (LLMs) have attracted significant attention in recommender systems for their excellent world knowledge capabilities. However, existing methods that rely on Euclidean space struggle to capture the rich hierarchical…

Information Retrieval · Computer Science 2025-04-22 Wentao Cheng , Zhida Qin , Zexue Wu , Pengzhan Zhou , Tianyu Huang

While both agent interaction and personalisation are vibrant topics in research on large language models (LLMs), there has been limited focus on the effect of language interaction on the behaviour of persona-conditioned LLM agents. Such an…

Computation and Language · Computer Science 2024-02-06 Ivar Frisch , Mario Giulianelli

Large Language Models (LLMs) have achieved remarkable success across a wide array of tasks. Due to the impressive planning and reasoning abilities of LLMs, they have been used as autonomous agents to do many tasks automatically. Recently,…

Computation and Language · Computer Science 2024-04-22 Taicheng Guo , Xiuying Chen , Yaqi Wang , Ruidi Chang , Shichao Pei , Nitesh V. Chawla , Olaf Wiest , Xiangliang Zhang