Gaussian Stochastic Weight Averaging for Bayesian Low-Rank Adaptation of Large Language Models
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Abstract (arXiv)
Fine-tuned Large Language Models (LLMs) often suffer from overconfidence and poor calibration, particularly when fine-tuned on small datasets. To address these challenges, we propose a simple combination of Low-Rank Adaptation (LoRA) with Gaussian Stochastic Weight Averaging (SWAG), facilitating approximate Bayesian inference in LLMs. Through extensive testing across several Natural Language Processing (NLP) benchmarks, we demonstrate that our straightforward and computationally efficient approach improves model generalization and calibration competitively with comparable, more sophisticated methods for Bayesian inference in LLMs. We further show that our method exhibits greater robustness against distribution shift, as reflected in its improved performance on out-of-distribution tasks.
Key facts. Cited by 20 papers in the map (data through 7 Oct 2026). Builds on 69 of its 86 references that are in the map. First posted on arXiv 6 May 2024.
Builds on
69 of 86 references.
References · 69
- 2020Language Models are Few-Shot Learnerscited by 32,199
- 2021LoRA: Low-Rank Adaptation of Large Language Modelscited by 14,084
- 2023LLaMA: Open and Efficient Foundation Language Modelscited by 13,958
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50 most cited of 69 All 69 (JSON)
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Citing papers per year: 2024: 5; 2025: 9; 2026: 6.
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- 2024BLoB: Bayesian Low-Rank Adaptation by Backpropagation for Large Language Modelscited by 48
- 2025C-LoRA: Contextual Low-Rank Adaptation for Uncertainty Estimation in Large Language Modelscited by 9
- 2025Generative AI for Autonomous Driving: Frontiers and Opportunitiescited by 7
- 2024Variational Low-Rank Adaptation Using IVONcited by 5
- 2025Improving LoRA with Variational Learningcited by 5
- 2024Uncertainty-Guided Likelihood Tree Searchcited by 4
- 2025Bayesian Mixture of Experts For Large Language Modelscited by 4
- 2024Parameter-efficient Bayesian Neural Networks for Uncertainty-aware Depth Estimationcited by 3
- 2025Promoting Ensemble Diversity with Interactive Bayesian Distributional Robustness for Fine-tuning Foundation Modelscited by 3
- 2025Uncertainty-Aware Adaptation of Large Language Models for Protein-Protein Interaction Analysiscited by 2
- 20251LoRA: Summation Compression for Very Low-Rank Adaptationcited by 2
- 2025Toward Efficient Uncertainty in LLMs through Evidential Knowledge Distillationcited by 2
8 more
- 2026Calibrating Scientific Foundation Models with Inference-Time Stochastic Attentioncited by 1
- 2026BaRA: Bayesian Adaptive Rank Allocation for Parameter-Efficient Fine-Tuningcited by 1
- 2024Stein Variational Newton Neural Network Ensemblescited by 0
- 2025Learning Adapter Rank via Symmetry Breakingcited by 0
- 2026Bayesian Fine-tuning in Projected Subspacescited by 0
- 2026Soft Specialists: α-R'enyi Ensembles for Uncertainty-Aware LLM Post-Trainingcited by 0
- 2026ST-LoRA: Single Trajectory LoRA Ensemble for Uncertainty Aware Agricultural Segmentationcited by 0
- 2026Certification Frontiers for Gaussian LoRA: Independent Priors, Posterior Risk, and Prediction-Preserving Balancingcited by 0
- 2026Certification Frontiers for Gaussian LoRA: Independent Priors, Posterior Risk, and Prediction-Preserving Balancing26 Sep 2026
- 2026ST-LoRA: Single Trajectory LoRA Ensemble for Uncertainty Aware Agricultural Segmentation2 Aug 2026
- 2026BaRA: Bayesian Adaptive Rank Allocation for Parameter-Efficient Fine-Tuning28 Jun 2026
- 2026Soft Specialists: α-R'enyi Ensembles for Uncertainty-Aware LLM Post-Training26 May 2026
- 2026Bayesian Fine-tuning in Projected Subspaces8 May 2026
- 2026Calibrating Scientific Foundation Models with Inference-Time Stochastic Attention21 Apr 2026
- 2025Bayesian Mixture of Experts For Large Language Models12 Nov 2025
- 2025Toward Efficient Uncertainty in LLMs through Evidential Knowledge Distillation24 Jul 2025
- 2025Learning Adapter Rank via Symmetry Breaking28 Jun 2025
- 2025Improving LoRA with Variational Learning17 Jun 2025
- 2025Promoting Ensemble Diversity with Interactive Bayesian Distributional Robustness for Fine-tuning Foundation Models8 Jun 2025
- 2025C-LoRA: Contextual Low-Rank Adaptation for Uncertainty Estimation in Large Language Models23 May 2025
8 more
- 2025Generative AI for Autonomous Driving: Frontiers and Opportunities13 May 2025
- 20251LoRA: Summation Compression for Very Low-Rank Adaptation11 Mar 2025
- 2025Uncertainty-Aware Adaptation of Large Language Models for Protein-Protein Interaction Analysis10 Feb 2025
- 2024Variational Low-Rank Adaptation Using IVON7 Nov 2024
- 2024Stein Variational Newton Neural Network Ensembles4 Nov 2024
- 2024Parameter-efficient Bayesian Neural Networks for Uncertainty-aware Depth Estimation25 Sep 2024
- 2024Uncertainty-Guided Likelihood Tree Search4 Jul 2024
- 2024BLoB: Bayesian Low-Rank Adaptation by Backpropagation for Large Language Models17 Jun 2024
- 2024Uncertainty-Guided Likelihood Tree Searchcited by 4
- 2024Uncertainty-Guided Likelihood Tree Search4 Jul 2024
- 2025Bayesian Mixture of Experts For Large Language Modelscited by 4
- 2025Bayesian Mixture of Experts For Large Language Models12 Nov 2025
- 2024BLoB: Bayesian Low-Rank Adaptation by Backpropagation for Large Language Modelscited by 48
- 2025C-LoRA: Contextual Low-Rank Adaptation for Uncertainty Estimation in Large Language Modelscited by 9
- 2024Variational Low-Rank Adaptation Using IVONcited by 5
- 2025Improving LoRA with Variational Learningcited by 5
- 2024Parameter-efficient Bayesian Neural Networks for Uncertainty-aware Depth Estimationcited by 3
- 2025Promoting Ensemble Diversity with Interactive Bayesian Distributional Robustness for Fine-tuning Foundation Modelscited by 3
- 2025Uncertainty-Aware Adaptation of Large Language Models for Protein-Protein Interaction Analysiscited by 2
- 20251LoRA: Summation Compression for Very Low-Rank Adaptationcited by 2
- 2025Toward Efficient Uncertainty in LLMs through Evidential Knowledge Distillationcited by 2
- 2026Calibrating Scientific Foundation Models with Inference-Time Stochastic Attentioncited by 1
- 2026BaRA: Bayesian Adaptive Rank Allocation for Parameter-Efficient Fine-Tuningcited by 1
- 2024Stein Variational Newton Neural Network Ensemblescited by 0
12 most cited of 17 All 17 (JSON)
- 2026Certification Frontiers for Gaussian LoRA: Independent Priors, Posterior Risk, and Prediction-Preserving Balancing26 Sep 2026
- 2026ST-LoRA: Single Trajectory LoRA Ensemble for Uncertainty Aware Agricultural Segmentation2 Aug 2026
- 2026BaRA: Bayesian Adaptive Rank Allocation for Parameter-Efficient Fine-Tuning28 Jun 2026
- 2026Soft Specialists: α-R'enyi Ensembles for Uncertainty-Aware LLM Post-Training26 May 2026
- 2026Bayesian Fine-tuning in Projected Subspaces8 May 2026
- 2026Calibrating Scientific Foundation Models with Inference-Time Stochastic Attention21 Apr 2026
- 2025Toward Efficient Uncertainty in LLMs through Evidential Knowledge Distillation24 Jul 2025
- 2025Learning Adapter Rank via Symmetry Breaking28 Jun 2025
- 2025Improving LoRA with Variational Learning17 Jun 2025
- 2025Promoting Ensemble Diversity with Interactive Bayesian Distributional Robustness for Fine-tuning Foundation Models8 Jun 2025
- 2025C-LoRA: Contextual Low-Rank Adaptation for Uncertainty Estimation in Large Language Models23 May 2025
- 20251LoRA: Summation Compression for Very Low-Rank Adaptation11 Mar 2025
12 newest of 17 All 17 (JSON)