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We investigate the high-dimensional data clustering problem by proposing a novel and unsupervised representation learning model called Robust Flexible Auto-weighted Local-coordinate Concept Factorization (RFA-LCF). RFA-LCF integrates the…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Zhao Zhang , Yan Zhang , Sheng Li , Guangcan Liu , Meng Wang , Shuicheng Yan

Aggregating information from features across different layers is an essential operation for dense prediction models. Despite its limited expressiveness, feature concatenation dominates the choice of aggregation operations. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2023-01-20 Yung-Hsu Yang , Thomas E. Huang , Min Sun , Samuel Rota Bulò , Peter Kontschieder , Fisher Yu

Learning from multimodal datasets can leverage complementary information and improve performance in prediction tasks. A commonly used strategy to account for feature correlations in high-dimensional datasets is the latent variable approach.…

机器学习 · 计算机科学 2024-10-01 Lingchao Mao , Qi wang , Yi Su , Fleming Lure , Jing Li

Federated Learning (FL) has emerged as a promising approach for privacy-preserving model training across decentralized devices. However, it faces challenges such as statistical heterogeneity and susceptibility to adversarial attacks, which…

机器学习 · 计算机科学 2024-12-13 Jialuo He , Wei Chen , Xiaojin Zhang

Despite the impressive capabilities of large language models across various tasks, their continued scaling is severely hampered not only by data scarcity but also by the performance degradation associated with excessive data repetition…

计算与语言 · 计算机科学 2025-05-20 Xintong Hao , Ruijie Zhu , Ge Zhang , Ke Shen , Chenggang Li

Adaptive optimization methods, which perform local optimization with a metric constructed from the history of iterates, are becoming increasingly popular for training deep neural networks. Examples include AdaGrad, RMSProp, and Adam. We…

机器学习 · 统计学 2018-05-23 Ashia C. Wilson , Rebecca Roelofs , Mitchell Stern , Nathan Srebro , Benjamin Recht

In this study, a new Stacked Generalization technique called Fuzzy Stacked Generalization (FSG) is proposed to minimize the difference between N -sample and large-sample classification error of the Nearest Neighbor classifier. The proposed…

机器学习 · 计算机科学 2013-08-14 Mete Ozay , Fatos T. Yarman Vural

This work investigates fault-resilient federated learning when the data samples are non-uniformly distributed across workers, and the number of faulty workers is unknown to the central server. In the presence of adversarially faulty workers…

In this paper, we investigate over-the-air model aggregation in a federated edge learning (FEEL) system. We introduce a Markovian probability model to characterize the intrinsic temporal structure of the model aggregation series. With this…

信息论 · 计算机科学 2021-03-04 Dian Fan , Xiaojun Yuan , Ying-Jun Angela Zhang

The vanilla fractional order gradient descent may oscillatively converge to a region around the global minimum instead of converging to the exact minimum point, or even diverge, in the case where the objective function is strongly convex.…

最优化与控制 · 数学 2023-03-09 Jiaxu Liu , Song Chen , Shengze Cai , Chao Xu

Adapting large Video-Language Models (VLMs) for action detection using only a few examples poses challenges like overfitting and the granularity mismatch between scene-level pre-training and required person-centric understanding. We propose…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Deep Anil Patel , Iain Melvin , Zachary Izzo , Martin Renqiang Min

Collaborative game-based learning environments offer rich opportunities for small-group knowledge construction, yet automatically predicting student collaboration satisfaction remains challenging. A critical barrier is modality degradation:…

机器学习 · 计算机科学 2026-05-19 Wen-Hsin Tsai , Chia-Ming Lee , Yuk-Ying Tung

LLM-based optimization has shown remarkable potential in enhancing agentic systems. However, the conventional approach of prompting LLM optimizer with the whole training trajectories on training dataset in a single pass becomes untenable as…

Deep learning has revolutionized various fields, yet its efficacy is hindered by overfitting and the requirement of extensive annotated data, particularly in few-shot learning scenarios where limited samples are available. This paper…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Jiacheng Hu , Zhen Qi , Jianjun Wei , Jiajing Chen , Runyuan Bao , Xinyu Qiu

The rapidly changing landscapes of modern optimization problems require algorithms that can be adapted in real-time. This paper introduces an Adaptive Metaheuristic Framework (AMF) designed for dynamic environments. It is capable of…

人工智能 · 计算机科学 2024-04-19 Bestoun S. Ahmed

Local learning offers an alternative to traditional end-to-end back-propagation in deep neural networks, significantly reducing GPU memory consumption. Although it has shown promise in image classification tasks, its extension to other…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Feiyu Zhu , Yuming Zhang , Xiuyuan Guo , Hengyu Shi , Junfeng Luo , Junhao Su , Jialin Gao

Motivation: Despite significant advances in Third-Generation Sequencing (TGS) technologies, Next-Generation Sequencing (NGS) technologies remain dominant in the current sequencing market. This is due to the lower error rates and richer…

信息论 · 计算机科学 2023-04-04 Jia Wang , Yi Niu , Tianyi Xu , Mingming Ma , Dahua Gao , Guangming Shi

In this project, we have successfully designed, implemented, deployed and tested a novel FPGA accelerated algorithm for neural network training. The algorithm itself was developed in an independent study option. This training method is…

机器学习 · 计算机科学 2020-09-08 Seyedeh Niusha Alavi Foumani , Ce Guo , Wayne Luk

Sharpness-Aware Minimization (SAM) improves model generalization but doubles the computational cost of Stochastic Gradient Descent (SGD) by requiring twice the gradient calculations per optimization step. To mitigate this, we propose…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Jiaxin Deng , Junbiao Pang

Following the introduction of Adam, several novel adaptive optimizers for deep learning have been proposed. These optimizers typically excel in some tasks but may not outperform Adam uniformly across all tasks. In this work, we introduce…

机器学习 · 计算机科学 2024-06-18 Kaan Ozkara , Can Karakus , Parameswaran Raman , Mingyi Hong , Shoham Sabach , Branislav Kveton , Volkan Cevher