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Supervised fine-tuning (SFT) is a pivotal approach to adapting large language models (LLMs) for downstream tasks; however, performance often suffers from the ``seesaw phenomenon'', where indiscriminate parameter updates yield progress on…

计算与语言 · 计算机科学 2025-09-22 Yao Wang , Di Liang , Minlong Peng

Fine-tuning pretrained models is a standard and effective workflow in modern machine learning. However, robust fine-tuning (RFT), which aims to simultaneously achieve adaptation to a downstream task and robustness to adversarial examples,…

Conventional low-rank adaptation methods build adapters without considering data context, leading to sub-optimal fine-tuning performance and severe forgetting of inherent world knowledge. In this paper, we propose context-oriented…

机器学习 · 计算机科学 2025-06-17 Yibo Yang , Sihao Liu , Chuan Rao , Bang An , Tiancheng Shen , Philip H. S. Torr , Ming-Hsuan Yang , Bernard Ghanem

Counterfactual explanations enhance the interpretability of deep learning models in medical imaging, yet adapting them to 3D CT scans poses challenges due to volumetric complexity and resource demands. We extend the Latent Shift…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Joseph Paul Cohen , Louis Blankemeier , Akshay Chaudhari

With the increasing demand for efficient and flexible robotic exploration solutions, Reinforcement Learning (RL) is becoming a promising approach in the field of autonomous robotic exploration. However, current RL-based exploration…

机器人学 · 计算机科学 2025-03-19 Chunyu Yang , Shengben Bi , Yihui Xu , Xin Zhang

Pretrained bidirectional Transformers, such as BERT, have achieved significant improvements in a wide variety of language understanding tasks, while it is not straightforward to directly apply them for natural language generation. In this…

计算与语言 · 计算机科学 2021-10-27 Hangbo Bao , Li Dong , Wenhui Wang , Nan Yang , Furu Wei

Many practical applications require training of semantic segmentation models on unlabelled datasets and their execution on low-resource hardware. Distillation from a trained source model may represent a solution for the first but does not…

计算机视觉与模式识别 · 计算机科学 2024-02-21 Claudia Cuttano , Antonio Tavera , Fabio Cermelli , Giuseppe Averta , Barbara Caputo

From customer feedback to social media, understanding human sentiment in text is central to how machines can interact meaningfully with people. However, despite notable progress, accurately capturing sentiment remains a challenging task,…

信息检索 · 计算机科学 2026-03-24 Soudeep Ghoshal , Himanshu Buckchash , Sarita Paudel , Rubén Ruiz-Torrubiano

Deep learning models perform poorly when domain shifts exist between training and test data. Test-time adaptation (TTA) is a paradigm to mitigate this issue by adapting pre-trained models using only unlabeled test samples. However, existing…

机器学习 · 计算机科学 2025-05-27 Taeckyung Lee , Sorn Chottananurak , Junsu Kim , Jinwoo Shin , Taesik Gong , Sung-Ju Lee

Test-time adaptation (TTA) is an effective approach to mitigate performance degradation of trained models when encountering input distribution shifts at test time. However, existing TTA methods often suffer significant performance drops…

机器学习 · 计算机科学 2025-02-06 Minguk Jang , Hye Won Chung

Continual Test-Time Adaptation (CTTA) is an emerging and challenging task where a model trained in a source domain must adapt to continuously changing conditions during testing, without access to the original source data. CTTA is prone to…

机器学习 · 计算机科学 2024-05-29 Ziqi Shi , Fan Lyu , Ye Liu , Fanhua Shang , Fuyuan Hu , Wei Feng , Zhang Zhang , Liang Wang

Cone-beam CT (CBCT) is routinely acquired in radiotherapy but suffers from severe artifacts and unreliable Hounsfield Unit (HU) values, limiting its direct use for dose calculation. Synthetic CT (sCT) generation from CBCT is therefore an…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Xianhao Zhou , Jianghao Wu , Lanfeng Zhong , Ku Zhao , Jinlong He , Shaoting Zhang , Guotai Wang

Cross-Domain Few-Shot Learning (CDFSL) adapts models trained with large-scale general data (source domain) to downstream target domains with only scarce training data, where the research on vision-language models (e.g., CLIP) is still in…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Yaze Zhao , Yixiong Zou , Yuhua Li , Ruixuan Li

While parameter efficient tuning (PET) methods have shown great potential with transformer architecture on Natural Language Processing (NLP) tasks, their effectiveness with large-scale ConvNets is still under-studied on Computer Vision (CV)…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Hao Chen , Ran Tao , Han Zhang , Yidong Wang , Xiang Li , Wei Ye , Jindong Wang , Guosheng Hu , Marios Savvides

Test-time adaptation (TTA) enhances model robustness by enabling adaptation to target distributions that differ from training distributions, improving real-world generalizability. However, most existing TTA approaches focus on adjusting the…

机器学习 · 计算机科学 2026-05-05 Yewon Han , Seoyun Yang , Taesup Kim

Deep neural networks often exhibit poor performance on data that is unlikely under the train-time data distribution, for instance data affected by corruptions. Previous works demonstrate that test-time adaptation to data shift, for instance…

Graph Neural Networks frequently exhibit significant performance degradation in the out-of-distribution test scenario. While test-time training (TTT) offers a promising solution, existing Parameter Finetuning (PaFT) paradigm suffer from…

机器学习 · 计算机科学 2026-01-30 Jiaxin Zhang , Yiqi Wang , Siwei Wang , Xihong Yang , Yu Shi , Xinwang Liu , En Zhu

Extremely large-scale multiple-input multiple-output (XL-MIMO) systems, operating in the near-field region due to their massive antenna arrays, are key enablers of next-generation wireless communications but face significant challenges in…

信号处理 · 电气工程与系统科学 2025-12-02 Tianqi Mao , Haiyang Li , Shufeng Tan , Pengyu Wang , Guangyao Liu , Ruiqi Liu , Leyi Zhang , Meng Hua , Dezhi Zheng , Zhaocheng Wang , Sheng Chen

This paper proposes a novel test-time adaptation strategy that adjusts the model pre-trained on the source domain using only unlabeled online data from the target domain to alleviate the performance degradation due to the distribution shift…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Sungha Choi , Seunghan Yang , Seokeon Choi , Sungrack Yun

Continual fine-tuning aims to adapt a pre-trained backbone to new tasks sequentially while preserving performance on earlier tasks whose data are no longer available. Existing approaches fall into two categories which include input- and…

机器学习 · 计算机科学 2026-03-17 Hang Thi-Thuy Le , Long Minh Bui , Minh Hoang , Trong Nghia Hoang