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Approximate Bayesian Computation (ABC) is a popular sampling method in applications involving intractable likelihood functions. Without evaluating the likelihood function, ABC approximates the posterior distribution by the set of accepted…

统计计算 · 统计学 2017-08-17 Jin Zhou , Kenji Fukumizu

Bilateral filtering (BF) is one of the most classical denoising filters, however, the manually initialized filtering kernel hampers its adaptivity across images with various characteristics. To deal with image variation (i.e.,…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Feihong Liu , Jun Feng , Pew-Thian Yap , Dinggang Shen

The crowd counting task aims at estimating the number of people located in an image or a frame from videos. Existing methods widely adopt density maps as the training targets to optimize the point-to-point loss. While in testing phase, we…

计算机视觉与模式识别 · 计算机科学 2020-05-14 Xiyang Liu , Jie Yang , Wenrui Ding

The design of the proposal distributions, and most notably the kernel parameters, are crucial for the performance of Markov chain Monte Carlo (MCMC) rendering. A poor selection of parameters can increase the correlation of the Markov chain…

This paper introduces new efficient algorithms for two problems: sampling conditional on vertex degrees in unweighted graphs, and sampling conditional on vertex strengths in weighted graphs. The algorithms can sample conditional on the…

统计方法学 · 统计学 2018-09-19 James Scott , Axel Gandy

As a novel similarity measure that is defined as the expectation of a kernel function between two random variables, correntropy has been successfully applied in robust machine learning and signal processing to combat large outliers. The…

机器学习 · 计算机科学 2021-09-07 Badong Chen , Yuqing Xie , Xin Wang , Zejian yuan , Pengju Ren , Jing Qin

This paper introduces a simple but highly efficient ensemble for robust texture classification, which can effectively deal with translation, scale and changes of significant viewpoint problems. The proposed method first inherits the spirit…

计算机视觉与模式识别 · 计算机科学 2012-03-06 Shu Kong , Donghui Wang

Random sampling of graph partitions under constraints has become a popular tool for evaluating legislative redistricting plans. Analysts detect partisan gerrymandering by comparing a proposed redistricting plan with an ensemble of sampled…

应用统计 · 统计学 2023-11-09 Cory McCartan , Kosuke Imai

Modern clustering approaches often trade interpretability for performance, particularly in deep learning-based methods. We present Generative Kernel Spectral Clustering (GenKSC), a novel model combining kernel spectral clustering with…

机器学习 · 计算机科学 2025-04-25 David Winant , Sonny Achten , Johan A. K. Suykens

The success of self-attention (SA) in Transformer demonstrates the importance of non-local information to image super-resolution (SR), but the huge computing power required makes it difficult to implement lightweight models. To solve this…

图像与视频处理 · 电气工程与系统科学 2025-08-18 Yinggan Tang , Quanwei Hu

Tools to analyze the latent space of deep neural networks provide a step towards better understanding them. In this work, we motivate sparse subspace clustering (SSC) with an aim to learn affinity graphs from the latent structure of a given…

机器学习 · 计算机科学 2021-07-06 Uday Singh Saini , Pravallika Devineni , Evangelos E. Papalexakis

In this paper we propose solving localized multiple kernel learning (LMKL) using LMKL-Net, a feedforward deep neural network. In contrast to previous works, as a learning principle we propose {\em parameterizing} both the gating function…

机器学习 · 统计学 2018-05-23 Ziming Zhang

Minimum sum-of-squares clustering (MSSC) is a widely used clustering model, of which the popular K-means algorithm constitutes a local minimizer. It is well known that the solutions of K-means can be arbitrarily distant from the true MSSC…

机器学习 · 计算机科学 2018-12-21 Daniel Gribel , Thibaut Vidal

Multiple kernel learning (MKL), structured sparsity, and multi-task learning have recently received considerable attention. In this paper, we show how different MKL algorithms can be understood as applications of either regularization on…

机器学习 · 统计学 2011-03-03 Ryota Tomioka , Taiji Suzuki

Graph collaborative filtering (GCF) is a dominant paradigm in recommender systems, where contrastive learning (CL) objectives such as the Sampled Softmax (SSM) loss are widely used for optimization. However, it remains unclear how CL…

信息检索 · 计算机科学 2026-05-26 Geon Lee , Sunwoo Kim , Kyungho Kim , Kijung Shin

In this paper, we address the challenge of Markov Chain Monte Carlo (MCMC) algorithms within the approximate Bayesian Computation (ABC) framework, which often get trapped in local optima due to their inherent local exploration mechanism. We…

统计计算 · 统计学 2025-12-16 Xuefei Cao , Shijia Wang , Yongdao Zhou

Existing Multi-view Clustering (MVC) methods based on subspace learning focus on consensus representation learning while neglecting the inherent topological structure of data. Despite the integration of Graph Neural Networks (GNNs) into…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Chenping Pei , Fadi Dornaika , Jingjun Bi

Combining information from various image features has become a standard technique in concept recognition tasks. However, the optimal way of fusing the resulting kernel functions is usually unknown in practical applications. Multiple kernel…

计算机视觉与模式识别 · 计算机科学 2012-11-26 Alexander Binder , Shinichi Nakajima , Marius Kloft , Christina Müller , Wojciech Samek , Ulf Brefeld , Klaus-Robert Müller , Motoaki Kawanabe

Subspace sparse coding (SSC) algorithms have proven to be beneficial to clustering problems. They provide an alternative data representation in which the underlying structure of the clusters can be better captured. However, most of the…

机器学习 · 计算机科学 2019-03-14 Babak Hosseini , Barbara Hammer

We develop a novel framework for sparse multiscale kernel approximation of large scattered data problems based on a samplet representation. Samplets form a multiresolution analysis of localized discrete signed measures and enable…

数值分析 · 数学 2026-04-03 Sara Avesani , Gaia Fumagalli , Michael Multerer , Chiara Segala