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相关论文: Uncertainty quantification in fine-tuned LLMs usin…

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Finetuned LLMs often exhibit poor uncertainty quantification, manifesting as overconfidence, poor calibration, and unreliable prediction results on test data or out-of-distribution samples. One approach commonly used in vision for…

机器学习 · 计算机科学 2023-10-06 Xi Wang , Laurence Aitchison , Maja Rudolph

The performance of Large Language Models (LLMs) on many tasks is greatly limited by the knowledge learned during pre-training and stored in the model's parameters. Low-rank adaptation (LoRA) is a popular and efficient training technique for…

Low-Rank Adaptation (LoRA) offers a cost-effective solution for fine-tuning large language models (LLMs), but it often produces overconfident predictions in data-scarce few-shot settings. To address this issue, several classical statistical…

Large language models (LLMs) are increasingly used in decision-making contexts, but when they present answers without signaling low confidence, users may unknowingly act on erroneous outputs. Prior work shows that LLMs maintain internal…

计算与语言 · 计算机科学 2025-10-23 Mark Steyvers , Catarina Belem , Padhraic Smyth

Low-Rank Adaptation (LoRA) enables parameter-efficient fine-tuning of large language models by decomposing weight updates into low-rank matrices, significantly reducing storage and computational overhead. While effective, standard LoRA…

机器学习 · 计算机科学 2025-09-03 Patryk Marszałek , Klaudia Bałazy , Jacek Tabor , Tomasz Kuśmierczyk

Large language models (LLMs) are increasingly employed in information-seeking and decision-making tasks. Despite their broad utility, LLMs tend to generate information that conflicts with real-world facts, and their persuasive style can…

计算与语言 · 计算机科学 2024-09-19 Arslan Chaudhry , Sridhar Thiagarajan , Dilan Gorur

Low-rank approximation techniques have become the de facto standard for fine-tuning Large Language Models (LLMs) due to their reduced computational and memory requirements. This paper investigates the effectiveness of these methods in…

机器学习 · 计算机科学 2024-05-30 Saswat Das , Marco Romanelli , Cuong Tran , Zarreen Reza , Bhavya Kailkhura , Ferdinando Fioretto

Prompt optimization algorithms for Large Language Models (LLMs) excel in multi-step reasoning but still lack effective uncertainty estimation. This paper introduces a benchmark dataset to evaluate uncertainty metrics, focusing on Answer,…

机器学习 · 计算机科学 2024-12-30 Pei-Fu Guo , Yun-Da Tsai , Shou-De Lin

Although the advancements of pre-trained Large Language Models have significantly accelerated recent progress in NLP, their ever-increasing size poses significant challenges for conventional fine-tuning, especially in memory-intensive…

计算与语言 · 计算机科学 2024-04-02 Chenxi Whitehouse , Fantine Huot , Jasmijn Bastings , Mostafa Dehghani , Chu-Cheng Lin , Mirella Lapata

When using large language models (LLMs) in high-stakes applications, we need to know when we can trust their predictions. Some works argue that prompting high-performance LLMs is sufficient to produce calibrated uncertainties, while others…

As instruction-tuned large language models (LLMs) evolve, aligning pretrained foundation models presents increasing challenges. Existing alignment strategies, which typically leverage diverse and high-quality data sources, often overlook…

计算与语言 · 计算机科学 2024-06-10 Yikun Wang , Rui Zheng , Liang Ding , Qi Zhang , Dahua Lin , Dacheng Tao

Numerous real-world decisions rely on machine learning algorithms and require calibrated uncertainty estimates. However, modern methods often yield overconfident, uncalibrated predictions. The dominant approach to quantifying the…

The current study describes a cost-effective method for adapting large language models (LLMs) for academic advising with study-abroad contexts in mind and for application in low-resource methods for acculturation. With the…

人工智能 · 计算机科学 2025-12-17 Md Millat Hosen

Low-rank adaptation of large models, particularly LoRA, has gained traction due to its computational efficiency. This efficiency, contrasted with the prohibitive costs of full-model fine-tuning, means that practitioners often turn to LoRA…

机器学习 · 计算机科学 2024-09-19 Zhoujie Ding , Ken Ziyu Liu , Pura Peetathawatchai , Berivan Isik , Sanmi Koyejo

Low-Rank Adaptation (LoRA) enables parameter-efficient fine-tuning of large models by decomposing weight updates into low-rank matrices, significantly reducing storage and computational overhead. While effective, standard LoRA lacks…

机器学习 · 计算机科学 2026-05-11 Viktar Dubovik , Patryk Marszałek , Jacek Tabor , Tomasz Kuśmierczyk

Low-rank adaptation (LoRA) has emerged as a new paradigm for cost-efficient fine-tuning of large language models (LLMs). However, fine-tuned LLMs often become overconfident especially when fine-tuned on small datasets. Bayesian methods,…

机器学习 · 计算机科学 2024-02-07 Adam X. Yang , Maxime Robeyns , Xi Wang , Laurence Aitchison

Language models can learn a range of capabilities from unsupervised training on text corpora. However, to solve a particular problem (such as text summarization) it is typically necessary to fine-tune them on a task-specific dataset. It is…

计算与语言 · 计算机科学 2022-03-16 Adam Gleave , Geoffrey Irving

Low-Rank Adaptation (LoRA) is a widely-used parameter-efficient finetuning method for large language models. LoRA saves memory by training only low rank perturbations to selected weight matrices. In this work, we compare the performance of…

Large language models (LLMs) could be valuable personal AI agents across various domains, provided they can precisely follow user instructions. However, recent studies have shown significant limitations in LLMs' instruction-following…

人工智能 · 计算机科学 2025-03-31 Juyeon Heo , Miao Xiong , Christina Heinze-Deml , Jaya Narain

Large Language Models (LLMs) that can express interpretable and calibrated uncertainty are crucial in high-stakes domains. While methods to compute uncertainty post-hoc exist, they are often sampling-based and therefore computationally…

机器学习 · 计算机科学 2026-03-09 Azza Jenane , Nassim Walha , Lukas Kuhn , Florian Buettner
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