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This paper presents a novel method for utilizing fine-tuned Large Language Models (LLMs) to minimize data requirements in load profile analysis, demonstrated through the restoration of missing data in power system load profiles. A two-stage…

机器学习 · 计算机科学 2024-06-05 Yi Hu , Hyeonjin Kim , Kai Ye , Ning Lu

Large Language Models (LLMs) like GPT and LLaMA are revolutionizing the AI industry with their sophisticated capabilities. Training these models requires vast GPU clusters and significant computing time, posing major challenges in terms of…

Large Language Models (LLMs) have achieved remarkable success across diverse natural language tasks, yet the reward models employed for aligning LLMs often encounter challenges of reward hacking, where the approaches predominantly rely on…

计算与语言 · 计算机科学 2026-03-06 Biao Liu , Ning Xu , Junming Yang , Hao Xu , Xin Geng

Designing effective reward functions remains a fundamental challenge in reinforcement learning (RL), as it often requires extensive human effort and domain expertise. While RL from human feedback has been successful in aligning agents with…

机器学习 · 计算机科学 2025-06-17 Tung Minh Luu , Younghwan Lee , Donghoon Lee , Sunho Kim , Min Jun Kim , Chang D. Yoo

Learning to rank (LTR) plays a crucial role in various Information Retrieval (IR) tasks. Although supervised LTR methods based on fine-grained relevance labels (e.g., document-level annotations) have achieved significant success, their…

信息检索 · 计算机科学 2025-08-21 Yiteng Tu , Zhichao Xu , Tao Yang , Weihang Su , Yujia Zhou , Yiqun Liu , Fen Lin , Qin Liu , Qingyao Ai

Large language models (LLMs) exhibit impressive capabilities across a wide range of tasks, yet the choice of which model to use often involves a trade-off between performance and cost. More powerful models, though effective, come with…

Machine learning systems such as large scale recommendation systems or natural language processing systems are usually trained on billions of training points and are associated with hundreds of billions or trillions of parameters. Improving…

机器学习 · 计算机科学 2023-05-26 Michael Kounavis , Ousmane Dia , Ilqar Ramazanli

Reinforcement learning (RL) has become the de facto standard practice for sequential decision-making problems by improving future acting policies with feedback. However, RL algorithms may require extensive trial-and-error interactions to…

机器学习 · 计算机科学 2024-02-27 Shenao Zhang , Sirui Zheng , Shuqi Ke , Zhihan Liu , Wanxin Jin , Jianbo Yuan , Yingxiang Yang , Hongxia Yang , Zhaoran Wang

Pretrained large language models (LLMs) are currently state-of-the-art for solving the vast majority of natural language processing tasks. While many real-world applications still require fine-tuning to reach satisfactory levels of…

Recent Vision-based Large Language Models~(VisionLLMs) for autonomous driving have seen rapid advancements. However, such promotion is extremely dependent on large-scale high-quality annotated data, which is costly and labor-intensive. To…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Chaoqun Wang , Jie Yang , Xiaobin Hong , Ruimao Zhang

Building upon the success of low-rank adapter (LoRA), low-rank gradient projection (LoRP) has emerged as a promising solution for memory-efficient fine-tuning. However, existing LoRP methods typically treat each row of the gradient matrix…

机器学习 · 计算机科学 2025-05-06 Yezhen Wang , Zhouhao Yang , Brian K Chen , Fanyi Pu , Bo Li , Tianyu Gao , Kenji Kawaguchi

Large language models (LLMs) have achieved remarkable performance on diverse benchmarks, yet existing evaluation practices largely rely on coarse summary metrics that obscure underlying reasoning abilities. In this work, we propose novel…

统计方法学 · 统计学 2026-03-17 Jia Liu , Zhiyu Xu , Yuqi Gu

Training large language models (LLMs) typically involves pre-training on massive corpora, only to restart the process entirely when new data becomes available. A more efficient and resource-conserving approach would be continual…

Accurate estimation of project costs and durations remains a pivotal challenge in software engineering, directly impacting budgeting and resource management. Traditional estimation techniques, although widely utilized, often fall short due…

软件工程 · 计算机科学 2024-09-17 Justin Carpenter , Chia-Ying Wu , Nasir U. Eisty

Aligning large language models (LLMs) to value systems has emerged as a significant area of research within the fields of AI and NLP. Currently, this alignment process relies on the availability of high-quality supervised and preference…

Planning for both immediate and long-term benefits becomes increasingly important in recommendation. Existing methods apply Reinforcement Learning (RL) to learn planning capacity by maximizing cumulative reward for long-term recommendation.…

信息检索 · 计算机科学 2024-04-29 Wentao Shi , Xiangnan He , Yang Zhang , Chongming Gao , Xinyue Li , Jizhi Zhang , Qifan Wang , Fuli Feng

High-quality textual training data is essential for the success of multimodal data processing tasks, yet outputs from image captioning models like BLIP and GIT often contain errors and anomalies that are difficult to rectify using…

计算与语言 · 计算机科学 2025-02-25 Elyas Meguellati , Nardiena Pratama , Shazia Sadiq , Gianluca Demartini

Relevance judgments are crucial for evaluating information retrieval systems, but traditional human-annotated labels are time-consuming and expensive. As a result, many researchers turn to automatic alternatives to accelerate method…

信息检索 · 计算机科学 2025-07-15 Naghmeh Farzi , Laura Dietz

Recent advancements in large language models (LLMs) have enabled understanding webpage contexts, product details, and human instructions. Utilizing LLMs as the foundational architecture for either reward models or policies in reinforcement…

机器学习 · 计算机科学 2024-08-30 Shuang Feng , Grace Feng

Instruction Fine-Tuning (IFT) significantly enhances the zero-shot capabilities of pretrained Large Language Models (LLMs). While coding data is known to boost LLM reasoning abilities during pretraining, its role in activating internal…

人工智能 · 计算机科学 2024-12-13 Xinlu Zhang , Zhiyu Zoey Chen , Xi Ye , Xianjun Yang , Lichang Chen , William Yang Wang , Linda Ruth Petzold