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We present Bayesian Diffusion Models (BDM), a prediction algorithm that performs effective Bayesian inference by tightly coupling the top-down (prior) information with the bottom-up (data-driven) procedure via joint diffusion processes. We…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Haiyang Xu , Yu Lei , Zeyuan Chen , Xiang Zhang , Yue Zhao , Yilin Wang , Zhuowen Tu

Federated learning learns from scattered data by fusing collaborative models from local nodes. However, due to chaotic information distribution, the model fusion may suffer from structural misalignment with regard to unmatched parameters.…

机器学习 · 计算机科学 2022-03-22 Fuxun Yu , Weishan Zhang , Zhuwei Qin , Zirui Xu , Di Wang , Chenchen Liu , Zhi Tian , Xiang Chen

Bayesian optimization (BO) is a sample efficient approach to automatically tune the hyperparameters of machine learning models. In practice, one frequently has to solve similar hyperparameter tuning problems sequentially. For example, one…

机器学习 · 计算机科学 2021-02-26 Samuel Horváth , Aaron Klein , Peter Richtárik , Cédric Archambeau

A central problem in machine learning involves modeling complex data-sets using highly flexible families of probability distributions in which learning, sampling, inference, and evaluation are still analytically or computationally…

机器学习 · 计算机科学 2015-11-20 Jascha Sohl-Dickstein , Eric A. Weiss , Niru Maheswaranathan , Surya Ganguli

Bayesian policy reuse (BPR) is a general policy transfer framework for selecting a source policy from an offline library by inferring the task belief based on some observation signals and a trained observation model. In this paper, we…

机器学习 · 计算机科学 2023-07-14 Jinmei Liu , Zhi Wang , Chunlin Chen , Daoyi Dong

Transfer learning is widely used for training deep neural networks (DNN) for building a powerful representation. Even after the pre-trained model is adapted for the target task, the representation performance of the feature extractor is…

机器学习 · 计算机科学 2023-08-22 Seunghee Koh , Hyounguk Shon , Janghyeon Lee , Hyeong Gwon Hong , Junmo Kim

In this work, we propose a novel variational Bayesian adaptive learning approach for cross-domain knowledge transfer to address acoustic mismatches between training and testing conditions, such as recording devices and environmental noise.…

音频与语音处理 · 电气工程与系统科学 2025-01-28 Hu Hu , Sabato Marco Siniscalchi , Chao-Han Huck Yang , Chin-Hui Lee

Communication scene recognition has been widely applied in practice, but using deep learning to address this problem faces challenges such as insufficient data and imbalanced data distribution. To address this, we designed a weighted loss…

计量经济学 · 经济学 2026-02-10 Jiasong Han , Yufei Feng , Xiaofeng Zhong

Federated learning (FL) is a privacy-preserving machine learning paradigm that enables collaborative model training across multiple distributed clients without disclosing their raw data. Personalized federated learning (pFL) has gained…

机器学习 · 计算机科学 2025-08-28 Tiandi Ye , Wenyan Liu , Kai Yao , Lichun Li , Shangchao Su , Cen Chen , Xiang Li , Shan Yin , Ming Gao

Non-Bayesian social learning theory provides a framework for distributed inference of a group of agents interacting over a social network by sequentially communicating and updating beliefs about the unknown state of the world through…

统计方法学 · 统计学 2019-10-25 James Z. Hare , Cesar Uribe , Lance Kaplan , Ali Jadbabaie

In this paper, we describe the Maximum Uniformity of Distribution (MUD) algorithm with the power-law nonlinearity. In this approach, we hypothesize that neural network training will become more stable if feature distribution is not too much…

音频与语音处理 · 电气工程与系统科学 2019-12-25 Chanwoo Kim , Mehul Kumar , Kwangyoun Kim , Dhananjaya Gowda

Accuracy and generalization capabilities are key objectives when learning dynamical system models. To obtain such models from limited data, current works exploit prior knowledge and assumptions about the system. However, the fusion of…

While tasks could come with varying the number of instances and classes in realistic settings, the existing meta-learning approaches for few-shot classification assume that the number of instances per task and class is fixed. Due to such…

机器学习 · 计算机科学 2022-02-15 Hae Beom Lee , Hayeon Lee , Donghyun Na , Saehoon Kim , Minseop Park , Eunho Yang , Sung Ju Hwang

We consider a human-assisted autonomy sensor fusion for dynamic target localization in a Bayesian framework. Autonomous sensor-based tracking systems can suffer from observability and target detection failure. Humans possess valuable…

机器人学 · 计算机科学 2024-10-08 Min-Won Seo , Solmaz S. Kia

Reduced order models based on the transport of a lower dimensional manifold representation of the thermochemical state, such as Principal Component (PC) transport and Machine Learning (ML) techniques, have been developed to reduce the…

化学物理 · 物理学 2024-05-20 Bruno S. Soriano , Ki Sung Jung , Tarek Echekki , Jacqueline H. Chen , Mohammad Khalil

In many applications in engineering and sciences analysts have simultaneous access to multiple data sources. In such cases, the overall cost of acquiring information can be reduced via data fusion or multi-fidelity (MF) modeling where one…

机器学习 · 计算机科学 2023-07-26 Carlos Mora , Jonathan Tammer Eweis-Labolle , Tyler Johnson , Likith Gadde , Ramin Bostanabad

The performance of Transfer Learning (TL) heavily relies on effective pretraining, which demands large datasets and substantial computational resources. As a result, executing TL is often challenging for individual model developers.…

机器学习 · 计算机科学 2024-10-18 Evelyn Ma , Chao Pan , Rasoul Etesami , Han Zhao , Olgica Milenkovic

Federated learning brings potential benefits of faster learning, better solutions, and a greater propensity to transfer when heterogeneous data from different parties increases diversity. However, because federated learning tasks tend to be…

机器学习 · 计算机科学 2021-01-18 Duc Thien Nguyen , Shiau Hoong Lim , Laura Wynter , Desmond Cai

Fusion learning refers to synthesizing inferences from multiple sources or studies to provide more effective inference and prediction than from any individual source or study alone. Most existing methods for synthesizing inferences rely on…

统计方法学 · 统计学 2020-11-16 Dungang Liu , Regina Y. Liu , Minge Xie

Task Free online continual learning (TF-CL) is a challenging problem where the model incrementally learns tasks without explicit task information. Although training with entire data from the past, present as well as future is considered as…

机器学习 · 计算机科学 2024-02-20 Byung Hyun Lee , Min-hwan Oh , Se Young Chun