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Related papers: GRAPH-GRPO-LEX: Contract Graph Modeling and Reinfo…

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Obtaining a single-vector representation from a Large Language Model's (LLM) token-level outputs is a critical step for nearly all sentence-level tasks. However, standard pooling methods like mean or max aggregation treat tokens as an…

Machine Learning · Computer Science 2026-03-05 Krishna Sri Ipsit Mantri , Carola-Bibiane Schönlieb , Zorah Lähner , Moshe Eliasof

We propose reinforcement learning (RL) strategies tailored for reasoning in large language models (LLMs) under strict memory and compute limits, with a particular focus on compatibility with LoRA fine-tuning. Building on early policy…

Machine Learning · Computer Science 2025-06-13 Alan Lee , Harry Tong

Group-based reinforcement learning methods, like Group Relative Policy Optimization (GRPO), are widely used nowadays to post-train large language models. Despite their empirical success, they exhibit structural mismatches between reward…

Machine Learning · Computer Science 2026-01-09 Aleksandar Fontana , Marco Simoni , Giulio Rossolini , Andrea Saracino , Paolo Mori

GRAFT is a structured multimodal benchmark designed to probe how well LLMs handle instruction following, visual reasoning, and tasks requiring tight visual textual alignment. The dataset is built around programmatically generated charts and…

Artificial Intelligence · Computer Science 2025-12-03 Abhigya Verma , Sriram Puttagunta , Seganrasan Subramanian , Sravan Ramachandran

A graph is a fundamental data model to represent various entities and their complex relationships in society and nature, such as social networks, transportation networks, and financial networks. Recently, large language models (LLMs) have…

Computation and Language · Computer Science 2025-07-08 Wenbo Shang , Xin Huang

As autonomous agents become adept at understanding and interacting with graphical user interface (GUI) environments, a new era of automated task execution is emerging. Recent studies have demonstrated that Reinforcement Learning (RL) can…

Artificial Intelligence · Computer Science 2026-03-16 Songqin Nong , Xiaoxuan Tang , Jingxuan Xu , Sheng Zhou , Jianfeng Chen , Tao Jiang , Wenhao Xu

This paper proposes a high-quality dataset construction method for complex contract information extraction tasks in industrial scenarios and fine-tunes a large language model based on this dataset. Firstly, cluster analysis is performed on…

Computation and Language · Computer Science 2025-07-11 Yunyang Cao , Yanjun Li , Silong Dai

Recently, the emergence of large language models (LLMs) has motivated integrating language descriptions into graphs, forming text-attributed graphs (TAGs) that enhance model encoding capabilities from a data-centric perspective. A review of…

Machine Learning · Computer Science 2026-02-03 Zhihan Zhang , Xunkai Li , Lei Zhu , Guang Zeng , Bowen Fan , Yanzhe Wen , Hongchao Qin , Rong-Hua Li , Guoren Wang

Recent Large Language Models (LLMs) have significantly advanced natural language processing and automated decision-making. However, these models still encounter difficulties when performing complex reasoning tasks involving logical…

Computation and Language · Computer Science 2025-06-26 Yubo Dong , Hehe Fan

A contract is a type of legal document commonly used in organizations. Contract review is an integral and repetitive process to avoid business risk and liability. Contract analysis requires the identification and classification of key…

Artificial Intelligence · Computer Science 2024-04-18 Amit Tewari

Multi-agent systems (MAS) have shown great potential in executing complex tasks, but coordination and safety remain significant challenges. Multi-Agent Reinforcement Learning (MARL) offers a promising framework for agent collaboration, but…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Ziqi Jia , Junjie Li , Xiaoyang Qu , Jianzong Wang

Data contracts formalize agreements between data producers and consumers regarding schema, semantics, and quality expectations. As data pipelines grow in complexity, manual authoring and maintenance of contracts becomes error-prone and…

Databases · Computer Science 2025-07-30 Harshraj Bhoite

Hybrid Group Relative Policy Optimization (Hybrid GRPO) is a reinforcement learning framework that extends Proximal Policy Optimization (PPO) and Group Relative Policy Optimization (GRPO) by incorporating empirical multi-sample action…

Machine Learning · Computer Science 2025-02-05 Soham Sane

Knowledge Graph Question Answering aims to answer natural language questions by reasoning over structured knowledge graphs. While large language models have advanced KGQA through their strong reasoning capabilities, existing methods…

Artificial Intelligence · Computer Science 2026-01-28 Yanlin Song , Ben Liu , Víctor Gutiérrez-Basulto , Zhiwei Hu , Qianqian Xie , Min Peng , Sophia Ananiadou , Jeff Z. Pan

Generative AI, particularly Large Language Models, increasingly integrates graph-based representations to enhance reasoning, retrieval, and structured decision-making. Despite rapid advances, there remains limited clarity regarding when,…

Artificial Intelligence · Computer Science 2026-04-21 Hamed Jelodar , Samita Bai , Mohammad Meymani , Parisa Hamedi , Roozbeh Razavi-Far , Ali Ghorbani

Recent advances in large language models (LLMs) highlight the importance of post training techniques for improving reasoning and mathematical ability. Group Relative Policy Optimization (GRPO) has shown promise in this domain by combining…

Machine Learning · Computer Science 2026-03-20 Gabriele Carrino , Andrea Sassella , Nicolo Brunello , Federico Toschi , Mark James Carman

Learning on Graphs has attracted immense attention due to its wide real-world applications. The most popular pipeline for learning on graphs with textual node attributes primarily relies on Graph Neural Networks (GNNs), and utilizes shallow…

Machine Learning · Computer Science 2024-01-17 Zhikai Chen , Haitao Mao , Hang Li , Wei Jin , Hongzhi Wen , Xiaochi Wei , Shuaiqiang Wang , Dawei Yin , Wenqi Fan , Hui Liu , Jiliang Tang

Large Language Models (LLMs) have achieved impressive results in processing text data, which has sparked interest in applying these models beyond textual data, such as graphs. In the field of graph learning, there is a growing interest in…

Artificial Intelligence · Computer Science 2024-10-10 Sheng Ouyang , Yulan Hu , Ge Chen , Yong Liu

Although Large Language Models (LLMs) excel at addressing straightforward reasoning tasks, they frequently struggle with difficulties when confronted by more complex multi-step reasoning due to a range of factors. Firstly, natural language…

Computation and Language · Computer Science 2024-02-22 Kewei Cheng , Nesreen K. Ahmed , Theodore Willke , Yizhou Sun

Large Language Models (LLMs) have shown impressive capabilities in multi-step reasoning and problem-solving.Recent works introduce multi-agent reflection frameworks where multiple LLM agents critique and refine each other's outputs using…

Artificial Intelligence · Computer Science 2025-11-26 Yuanhao Li , Mingshan Liu , Hongbo Wang , Yiding Zhang , Yifei Ma , Wei Tan