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Deep generative models are proficient in generating realistic data but struggle with producing rare samples in low density regions due to their scarcity of training datasets and the mode collapse problem. While recent methods aim to improve…

计算机视觉与模式识别 · 计算机科学 2025-01-08 Subeen Lee , Jiyeon Han , Soyeon Kim , Jaesik Choi

Federated Learning has emerged as a dominant computational paradigm for distributed machine learning. Its unique data privacy properties allow us to collaboratively train models while offering participating clients certain…

机器学习 · 计算机科学 2022-05-04 Dimitris Stripelis , Marcin Abram , Jose Luis Ambite

To enable closed form conditioning, a common assumption in Gaussian process (GP) regression is independent and identically distributed Gaussian observation noise. This strong and simplistic assumption is often violated in practice, which…

机器学习 · 统计学 2024-06-04 Matias Altamirano , François-Xavier Briol , Jeremias Knoblauch

Many promising applications of supervised machine learning face hurdles in the acquisition of labeled data in sufficient quantity and quality, creating an expensive bottleneck. To overcome such limitations, techniques that do not depend on…

k-Nearest-Neighbor Machine Translation (kNN-MT) becomes an important research direction of NMT in recent years. Its main idea is to retrieve useful key-value pairs from an additional datastore to modify translations without updating the NMT…

计算与语言 · 计算机科学 2022-10-18 Hui Jiang , Ziyao Lu , Fandong Meng , Chulun Zhou , Jie Zhou , Degen Huang , Jinsong Su

Under covariate shift, training (source) data and testing (target) data differ in input space distribution, but share the same conditional label distribution. This poses a challenging machine learning task. Robust Bias-Aware (RBA)…

机器学习 · 计算机科学 2018-01-01 Anqi Liu , Rizal Fathony , Brian D. Ziebart

Building a good generative model for image has long been an important topic in computer vision and machine learning. Restricted Boltzmann machine (RBM) is one of such models that is simple but powerful. However, its restricted form also has…

机器学习 · 计算机科学 2016-11-24 Hengyuan Hu , Lisheng Gao , Quanbin Ma

We study the problem of Distributionally Robust Constrained RL (DRC-RL), where the goal is to maximize the expected reward subject to environmental distribution shifts and constraints. This setting captures situations where training and…

机器学习 · 计算机科学 2024-06-25 Zhengfei Zhang , Kishan Panaganti , Laixi Shi , Yanan Sui , Adam Wierman , Yisong Yue

The K-means algorithm is among the most commonly used data clustering methods. However, the regular K-means can only be applied in the input space and it is applicable when clusters are linearly separable. The kernel K-means, which extends…

机器学习 · 计算机科学 2020-12-08 Amir Aradnia , Maryam Amir Haeri , Mohammad Mehdi Ebadzadeh

Spherical radial-basis-based kernel interpolation abounds in image sciences including geophysical image reconstruction, climate trends description and image rendering due to its excellent spatial localization property and perfect…

机器学习 · 计算机科学 2024-01-17 Xiaotong Liu , Jinxin Wang , Di Wang , Shao-Bo Lin

Persistent homology has become an important tool for extracting geometric and topological features from data, whose multi-scale features are summarized in a persistence diagram. From a statistical perspective, however, persistence diagrams…

Dynamic magnetic resonance image reconstruction from incomplete k-space data has generated great research interest due to its capability to reduce scan time. Never-theless, the reconstruction problem is still challenging due to its…

图像与视频处理 · 电气工程与系统科学 2022-12-16 Chuanming Yu , Yu Guan , Ziwen Ke , Dong Liang , Qiegen Liu

Generative quantum machine learning models are trained to deduce the probability distribution underlying a given dataset, and to produce new, synthetic samples from it. The majority of such models proposed in the literature, like the…

Generative models dealing with modeling a~joint data distribution are generally either autoencoder or GAN based. Both have their pros and cons, generating blurry images or being unstable in training or prone to mode collapse phenomenon,…

机器学习 · 计算机科学 2020-09-17 Szymon Knop , Marcin Mazur , Przemysław Spurek , Jacek Tabor , Igor Podolak

Although the kernel robust mixed-norm (KRMN) algorithm outperforms the kernel least mean square (KLMS) algorithm in impulsive noise, it still has two major problems as follows: (1) The choice of the mixing parameter in the KRMN is crucial…

系统与控制 · 计算机科学 2018-02-12 Lu Lu , Haiquan Zhao , Badong Chen

Deep generative models have shown great promise when it comes to synthesising novel images. While they can generate images that look convincing on a higher-level, generating fine-grained details is still a challenge. In order to foster…

计算机视觉与模式识别 · 计算机科学 2019-01-15 Andrin Jenal , Nikolay Savinov , Torsten Sattler , Gaurav Chaurasia

Generative models (GMs) have received increasing research interest for their remarkable capacity to achieve comprehensive understanding. However, their potential application in the domain of multi-modal tracking has remained relatively…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Zhangyong Tang , Tianyang Xu , Xuefeng Zhu , Xiao-Jun Wu , Josef Kittler

Large Language Models (LLMs) use key-value (KV) cache to reduce redundant computation in autoregressive generation. However, the KV cache size increases linearly during generation, leading to excessive memory usage, especially for long…

计算与语言 · 计算机科学 2025-03-04 Jian Yuan , Ziwei He , Haoli Bai , Jingwen Leng , Bo Jiang

A simple yet effective architectural design of radial basis function neural networks (RBFNN) makes them amongst the most popular conventional neural networks. The current generation of radial basis function neural network is equipped with…

机器学习 · 计算机科学 2020-07-07 Syed Muhammad Atif , Shujaat Khan , Imran Naseem , Roberto Togneri , Mohammed Bennamoun

Learning with Reproducing Kernel Hilbert Spaces (RKHS) has been widely used in many scientific disciplines. Because a RKHS can be very flexible, it is common to impose a regularization term in the optimization to prevent overfitting.…

统计方法学 · 统计学 2017-06-06 Jingxiang Chen , Chong Zhang , Michael R. Kosorok , Yufeng Liu