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Unsupervised Contrastive learning has gained prominence in fields such as vision, and biology, leveraging predefined positive/negative samples for representation learning. Data augmentation, categorized into hand-designed and model-based…

Machine Learning · Computer Science 2024-05-28 Zelin Zang , Hao Luo , Kai Wang , Panpan Zhang , Fan Wang , Stan. Z Li , Yang You

Diffusion models have shown tremendous results in image generation. However, due to the iterative nature of the diffusion process and its reliance on classifier-free guidance, inference times are slow. In this paper, we propose a new…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Yi-Ting Hsiao , Siavash Khodadadeh , Kevin Duarte , Wei-An Lin , Hui Qu , Mingi Kwon , Ratheesh Kalarot

Recent advances such as Chain-of-Thought prompting have significantly improved large language models (LLMs) in zero-shot medical reasoning. However, prompting-based methods often remain shallow and unstable, while fine-tuned medical LLMs…

Computation and Language · Computer Science 2025-05-27 Jianghao Wu , Feilong Tang , Yulong Li , Ming Hu , Haochen Xue , Shoaib Jameel , Yutong Xie , Imran Razzak

Typical techniques for sequence classification are designed for well-segmented sequences which have been edited to remove noisy or irrelevant parts. Therefore, such methods cannot be easily applied on noisy sequences expected in real-world…

Computer Vision and Pattern Recognition · Computer Science 2017-04-18 Wenjie Pei , Tadas Baltrušaitis , David M. J. Tax , Louis-Philippe Morency

We found that enforcing guidance throughout the sampling process is often counterproductive due to the model-fitting issue, where samples are 'tuned' to match the classifier's parameters rather than generalizing the expected condition. This…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Anh-Dung Dinh , Daochang Liu , Chang Xu

In subject-driven text-to-image synthesis, the synthesis process tends to be heavily influenced by the reference images provided by users, often overlooking crucial attributes detailed in the text prompt. In this work, we propose…

Computer Vision and Pattern Recognition · Computer Science 2024-05-03 Kelvin C. K. Chan , Yang Zhao , Xuhui Jia , Ming-Hsuan Yang , Huisheng Wang

The calculations in the temporal axial gauge (TAG) are revised and a new prescription is introduced to avoid the well-known TAG-singularity. With this prescription we use the TAG-formalism to calculate the one-loop dispersion equation for…

High Energy Physics - Phenomenology · Physics 2016-09-01 O. K. Kalashnikov

Data augmentation is crucial for pixel-wise annotation tasks like semantic segmentation, where labeling requires significant effort and intensive labor. Traditional methods, involving simple transformations such as rotations and flips,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Quang-Huy Che , Duc-Tri Le , Bich-Nga Pham , Duc-Khai Lam , Vinh-Tiep Nguyen

Personalizing text-to-image diffusion models is crucial for adapting the pre-trained models to specific target concepts, enabling diverse image generation. However, fine-tuning with few images introduces an inherent trade-off between…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Sunghyun Park , Seokeon Choi , Hyoungwoo Park , Sungrack Yun

Diffusion models have achieved state-of-the-art performance in generative modeling, yet their sampling procedures remain vulnerable to hallucinations-often stemming from inaccuracies in score approximation. In this work, we reinterpret…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Yiqi Tian , Pengfei Jin , Mingze Yuan , Na Li , Bo Zeng , Quanzheng Li

Retrieval-Augmented Generation (RAG) integrates external knowledge to mitigate hallucinations, yet models often generate outputs inconsistent with retrieved content. Accurate hallucination detection requires disentangling the contributions…

Computation and Language · Computer Science 2025-10-27 Likun Tan , Kuan-Wei Huang , Joy Shi , Kevin Wu

Diffusion models have achieved remarkable success in synthesizing complex static and temporal visuals, a breakthrough largely driven by Classifier-Free Guidance (CFG). However, despite its pivotal role in aligning generated content with…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Haosen Li , Wenshuo Chen , Lei Wang , Shaofeng Liang , Bowen Tian , Soning Lai , Yutao Yue

Standard clothing asset generation involves restoring forward-facing flat-lay garment images displayed on a clear background by extracting clothing information from diverse real-world contexts, which presents significant challenges due to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Xianfeng Tan , Yuhan Li , Wenxiang Shang , Yubo Wu , Jian Wang , Xuanhong Chen , Yi Zhang , Ran Lin , Bingbing Ni

State-of-the-art text-to-image models produce visually impressive results but often struggle with precise alignment to text prompts, leading to missing critical elements or unintended blending of distinct concepts. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Paul Grimal , Michaël Soumm , Hervé Le Borgne , Olivier Ferret , Akihiro Sugimoto

Classifier-free guided diffusion models have recently been shown to be highly effective at high-resolution image generation, and they have been widely used in large-scale diffusion frameworks including DALLE-2, Stable Diffusion and Imagen.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Chenlin Meng , Robin Rombach , Ruiqi Gao , Diederik P. Kingma , Stefano Ermon , Jonathan Ho , Tim Salimans

Diffusion models are powerful tools for sampling from high-dimensional distributions by progressively transforming pure noise into structured data through a denoising process. When equipped with a guidance mechanism, these models can also…

Machine Learning · Computer Science 2026-05-04 Saeed Mohseni-Sehdeh , Walid Saad , Kei Sakaguchi , Tao Yu

Retrieval-Augmented Generation (RAG) methods have proven highly effective for tasks requiring factual consistency and robust knowledge retrieval. However, large-scale RAG systems consume significant computational resources and are prone to…

Computation and Language · Computer Science 2025-06-03 Jennifer Chen , Aidar Myrzakhan , Yaxin Luo , Hassaan Muhammad Khan , Sondos Mahmoud Bsharat , Zhiqiang Shen

Text-attributed graph (TAG) is an important type of graph structured data with text descriptions for each node. Few- and zero-shot node classification on TAGs have many applications in fields such as academia and social networks. However,…

Artificial Intelligence · Computer Science 2024-09-04 Yuxiang Wang , Xiao Yan , Shiyu Jin , Quanqing Xu , Chuanhui Yang , Yuanyuan Zhu , Chuang Hu , Bo Du , Jiawei Jiang

Thermal imaging is crucial for night vision but fundamentally hampered by the ghosting effect, a loss of detailed texture in cluttered photon streams. While conventional ghosting mitigation has relied on data post-processing, the recent…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Hongyi Xu , Du Wang , Chenjun Zhao , Jiashuo Chen , Jiale Lin , Liqin Cao , Yanfei Zhong , Yiyuan She , Fanglin Bao

Deep learning methods typically depend on the availability of labeled data, which is expensive and time-consuming to obtain. Active learning addresses such effort by prioritizing which samples are best to annotate in order to maximize the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Mélanie Gaillochet , Christian Desrosiers , Hervé Lombaert