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相关论文: Leveraging RAG for Training-Free Alignment of LLMs

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Reinforcement learning (RL) has emerged as a promising strategy for finetuning small language models (SLMs) to solve targeted tasks such as math and coding. However, RL algorithms tend to be resource-intensive, taking a significant amount…

机器学习 · 计算机科学 2025-10-07 Lianghuan Huang , Sagnik Anupam , Insup Lee , Shuo Li , Osbert Bastani

Despite the superior performance of Large language models on many NLP tasks, they still face significant limitations in memorizing extensive world knowledge. Recent studies have demonstrated that leveraging the Retrieval-Augmented…

人工智能 · 计算机科学 2024-12-23 Xiaqiang Tang , Jian Li , Nan Du , Sihong Xie

Radiography Report Generation (RRG) has gained significant attention in medical image analysis as a promising tool for alleviating the growing workload of radiologists. However, despite numerous advancements, existing methods have yet to…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Valentin Samokhin , Boris Shirokikh , Mikhail Goncharov , Dmitriy Umerenkov , Maksim Bobrin , Ivan Oseledets , Dmitry Dylov , Mikhail Belyaev

Preference learning is critical for aligning large language models (LLMs) with human values, with the quality of preference datasets playing a crucial role in this process. While existing metrics primarily assess data quality based on…

机器学习 · 计算机科学 2025-03-05 Kexin Huang , Junkang Wu , Ziqian Chen , Xue Wang , Jinyang Gao , Bolin Ding , Jiancan Wu , Xiangnan He , Xiang Wang

Large pre-trained language models have been shown to store factual knowledge in their parameters, and achieve state-of-the-art results when fine-tuned on downstream NLP tasks. However, their ability to access and precisely manipulate…

Guardrails have emerged as an alternative to safety alignment for content moderation of large language models (LLMs). Existing model-based guardrails have not been designed for resource-constrained computational portable devices, such as…

机器学习 · 计算机科学 2024-12-19 Hayder Elesedy , Pedro M. Esperança , Silviu Vlad Oprea , Mete Ozay

Retrieval-Augmented Generation (RAG) enhances language models by retrieving and incorporating relevant external knowledge. However, traditional retrieve-and-generate processes may not be optimized for real-world scenarios, where queries…

计算与语言 · 计算机科学 2025-02-28 Ingeol Baek , Hwan Chang , Byeongjeong Kim , Jimin Lee , Hwanhee Lee

Despite the successes of large language models (LLMs), they exhibit significant drawbacks, particularly when processing long contexts. Their inference cost scales quadratically with respect to sequence length, making it expensive for…

计算与语言 · 计算机科学 2024-07-22 Thomas Merth , Qichen Fu , Mohammad Rastegari , Mahyar Najibi

As retrieval-augmented generation (RAG) becomes more widespread, the role of retrieval is shifting from retrieving information for human browsing to retrieving context for AI reasoning. This shift creates more complex search environments,…

计算与语言 · 计算机科学 2026-01-05 Jiawei Zhou , Lei Chen

Retrieval-augmented generation (RAG) frameworks enable large language models (LLMs) to retrieve relevant information from a knowledge base and incorporate it into the context for generating responses. This mitigates hallucinations and…

计算与语言 · 计算机科学 2024-04-09 Pouria Rouzrokh , Shahriar Faghani , Cooper U. Gamble , Moein Shariatnia , Bradley J. Erickson

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating up-to-date external knowledge, yet real-world web environments present unique challenges. These limitations manifest as two key challenges: pervasive…

Memory, additional information beyond the training of large language models (LLMs), is crucial to various real-world applications, such as personal assistant. The two mainstream solutions to incorporate memory into the generation process…

计算与语言 · 计算机科学 2025-03-21 Jiale Wei , Shuchi Wu , Ruochen Liu , Xiang Ying , Jingbo Shang , Fangbo Tao

Retrieval Augmented Generation (RAG) is a common method for integrating external knowledge into pretrained Large Language Models (LLMs) to enhance accuracy and relevancy in question answering (QA) tasks. However, prompt engineering and…

计算与语言 · 计算机科学 2024-10-18 Isaac Chung , Phat Vo , Arman C. Kizilkale , Aaron Reite

Efficiently reranking documents retrieved from information retrieval (IR) pipelines to enhance overall quality of Retrieval-Augmented Generation (RAG) system remains an important yet challenging problem. Recent studies have highlighted the…

计算与语言 · 计算机科学 2025-11-12 Jingyu Wu , Aditya Shrivastava , Jing Zhu , Alfy Samuel , Anoop Kumar , Daben Liu

Retrieval-augmented generation (RAG) improves language model (LM) performance by providing relevant context at test time for knowledge-intensive situations. However, the relationship between parametric knowledge acquired during pretraining…

计算与语言 · 计算机科学 2026-04-02 Karan Singh , Michael Yu , Varun Gangal , Zhuofu Tao , Sachin Kumar , Emmy Liu , Steven Y. Feng

Technology-enhanced learning environments often help students retrieve relevant learning content for questions arising during self-paced study. Large language models (LLMs) have emerged as novel aids for information retrieval during…

信息检索 · 计算机科学 2025-09-29 Eason Chen , Chuangji Li , Shizhuo Li , Zimo Xiao , Jionghao Lin , Kenneth R. Koedinger

Techniques that learn improved representations via offline data or self-supervised objectives have shown impressive results in traditional reinforcement learning (RL). Nevertheless, it is unclear how improved representation learning can…

计算与语言 · 计算机科学 2024-10-25 Vaskar Nath , Dylan Slack , Jeff Da , Yuntao Ma , Hugh Zhang , Spencer Whitehead , Sean Hendryx

Designing reward functions for continuous-control robotics often leads to subtle misalignments or reward hacking, especially in complex tasks. Preference-based RL mitigates some of these pitfalls by learning rewards from comparative…

Large Language Models (LLMs) excel at reasoning and generation but are inherently limited by static pretraining data, resulting in factual inaccuracies and weak adaptability to new information. Retrieval-Augmented Generation (RAG) addresses…

计算与语言 · 计算机科学 2025-11-03 Qi Luo , Xiaonan Li , Yuxin Wang , Tingshuo Fan , Yuan Li , Xinchi Chen , Xipeng Qiu

Recently, tremendous strides have been made to align the generation of Large Language Models (LLMs) with human values to mitigate toxic or unhelpful content. Leveraging Reinforcement Learning from Human Feedback (RLHF) proves effective and…

计算与语言 · 计算机科学 2024-06-05 Mingye Zhu , Yi Liu , Lei Zhang , Junbo Guo , Zhendong Mao