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Data augmentation (DA) can significantly strengthen the electroencephalogram (EEG)-based seizure prediction methods. However, existing DA approaches are just the linear transformations of original data and cannot explore the feature space…

Signal Processing · Electrical Eng. & Systems 2024-12-10 Kai Shu , Le Wu , Yuchang Zhao , Aiping Liu , Ruobing Qian , Xun Chen

Classifier-Free Guidance (CFG) is a cornerstone of modern text-to-image models, yet its reliance on a semantically vacuous null prompt ($\varnothing$) generates a guidance signal prone to geometric entanglement. This is a key factor…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Shilong Han , Yuming Zhang , Hongxia Wang

Pattern recognition applications often suffer from skewed data distributions between classes, which may vary during operations w.r.t. the design data. Two-class classification systems designed using skewed data tend to recognize the…

Machine Learning · Computer Science 2019-12-02 Roghayeh Soleymani , Eric Granger , Giorgio Fumera

Classifier-free guidance (CFG) succeeds in condition diffusion models that use a guidance scale to balance the influence of conditional and unconditional terms. A high guidance scale is used to enhance the performance of the conditional…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Kaiyu Song , Hanjiang Lai

Data heterogeneity across clients in federated learning (FL) settings is a widely acknowledged challenge. In response, personalized federated learning (PFL) emerged as a framework to curate local models for clients' tasks. In PFL, a common…

Machine Learning · Computer Science 2023-12-27 Yutong Dai , Zeyuan Chen , Junnan Li , Shelby Heinecke , Lichao Sun , Ran Xu

Diffusion models have shown impressive results in generating high-quality conditional samples using guidance techniques such as Classifier-Free Guidance (CFG). However, existing methods often require additional training or neural function…

Machine Learning · Computer Science 2025-07-22 Kwanyoung Kim , Byeongsu Sim

Understanding and explaining the structure of generated test inputs is essential for effective software testing and debugging. Existing approaches--including grammar-based fuzzers, probabilistic Context-Free Grammars (pCFGs), and Large…

Software Engineering · Computer Science 2026-04-09 Annaëlle Baiget , Jaron Maene , Seongmin Lee , Benjie Wang , Guy Van den Broeck , Miryung Kim

This paper addresses the challenge of fault root cause identification in cloud computing environments. The difficulty arises from complex system structures, dense service coupling, and limited fault information. To solve this problem, an…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-04 Bruce Fang , Danyi Gao

Estimation of causal effects is critical to a range of scientific disciplines. Existing methods for this task either require interventional data, knowledge about the ground truth causal graph, or rely on assumptions such as…

Machine Learning · Computer Science 2025-11-21 Jake Robertson , Arik Reuter , Siyuan Guo , Noah Hollmann , Frank Hutter , Bernhard Schölkopf

Attribute bias in federated learning (FL) typically leads local models to optimize inconsistently due to the learning of non-causal associations, resulting degraded performance. Existing methods either use data augmentation for increasing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Zhuang Qi , Sijin Zhou , Lei Meng , Han Hu , Han Yu , Xiangxu Meng

Federated Learning (FL) in mobile environments faces significant communication bottlenecks. Gradient compression has proven as an effective solution to this issue, offering substantial benefits in environments with limited bandwidth and…

Machine Learning · Computer Science 2024-11-26 Rongwei Lu , Yutong Jiang , Yinan Mao , Chen Tang , Bin Chen , Laizhong Cui , Zhi Wang

Text augmentation is an effective technique for addressing the problem of insufficient data in natural language processing. However, existing text augmentation methods tend to focus on few-shot scenarios and usually perform poorly on large…

Computation and Language · Computer Science 2024-04-02 Heng Yang , Ke Li

Since federated learning (FL) has been introduced as a decentralized learning technique with privacy preservation, statistical heterogeneity of distributed data stays the main obstacle to achieve robust performance and stable convergence in…

Machine Learning · Computer Science 2022-12-08 Yanhang Shi , Siguang Chen , Haijun Zhang

Classifier-Free Guidance (CFG) is a widely used technique for conditional generation and improving sample quality in continuous diffusion models, and its extensions to discrete diffusion has recently started to be investigated. In order to…

Machine Learning · Computer Science 2026-03-04 Kevin Rojas , Ye He , Chieh-Hsin Lai , Yuhta Takida , Yuki Mitsufuji , Molei Tao

Severe class imbalance is common in real-world tabular learning, where rare but important minority classes are essential for reliable prediction. Existing generative oversampling methods such as GANs, VAEs, and diffusion models can improve…

Machine Learning · Computer Science 2025-11-21 Md. Tawfique Ihsan , Md. Rakibul Hasan Rafi , Ahmed Shoyeb Raihan , Imtiaz Ahmed , Abdullahil Azeem

While Classifier-Free Guidance (CFG) has become standard for improving sample fidelity in conditional diffusion models, it can harm diversity and induce memorization by applying constant guidance regardless of whether a particular sample…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Felix Koulischer , Florian Handke , Johannes Deleu , Thomas Demeester , Luca Ambrogioni

Federated Learning (FL) has recently emerged as a promising method that employs a distributed learning model structure to overcome data privacy and transmission issues paused by central machine learning models. In FL, datasets collected…

Machine Learning · Computer Science 2021-11-05 Ali Anaissi , Basem Suleiman

Prevalent Fault Localization (FL) techniques rely on tests to localize buggy program elements. Tests could be treated as fuel to further boost FL by providing more debugging information. Therefore, it is highly valuable to measure the Fault…

Software Engineering · Computer Science 2025-01-07 Yifan Zhao , Zeyu Sun , Guoqing Wang , Qingyuan Liang , Yakun Zhang , Yiling Lou , Dan Hao , Lu Zhang

Context-aided forecasting (CAF) holds promise for integrating domain knowledge and forward-looking information, enabling AI systems to surpass traditional statistical methods. However, recent empirical studies reveal a puzzling gap:…

Classifier-free guidance (CFG) is crucial for improving both generation quality and alignment between the input condition and final output in diffusion models. While a high guidance scale is generally required to enhance these aspects, it…

Machine Learning · Computer Science 2025-06-04 Seyedmorteza Sadat , Otmar Hilliges , Romann M. Weber