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A wide class of Bayesian models involve unidentifiable random matrices that display rotational ambiguity, with the Gaussian factor model being a typical example. A rich variety of Markov chain Monte Carlo (MCMC) algorithms have been…

统计计算 · 统计学 2024-08-16 Evan Poworoznek , Niccolo Anceschi , Federico Ferrari , David Dunson

A precise assessment of the risk of breast lesions can greatly lower it and assist physicians in choosing the best course of action. To categorise breast lesions, the majority of current computer-aided systems only use characteristics from…

图像与视频处理 · 电气工程与系统科学 2025-08-25 Muhaisin Tiyumba Nantogmah , Abdul-Barik Alhassan , Salamudeen Alhassan

Correlative microscopy aims at combining two or more modalities to gain more information than the one provided by one modality on the same biological structure. Registration is needed at different steps of correlative microscopies…

计算机视觉与模式识别 · 计算机科学 2020-12-02 Stephan Kunne , Guillaume Potier , Jean Mérot , Perrine Paul-Gilloteaux

Recently proposed new method "Ethanol as Internal Standard" for determination of volatile compounds in alcohol products by gas chromatography (GC) is investigated from different sides including method testing on prepared standard solutions…

We develop a new Bayesian model for non-rigid registration of three-dimensional medical images, with a focus on uncertainty quantification. Probabilistic registration of large images with calibrated uncertainty estimates is difficult for…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Daniel Grzech , Mohammad Farid Azampour , Huaqi Qiu , Ben Glocker , Bernhard Kainz , Loïc Le Folgoc

Probabilistic 3D point cloud registration methods have shown competitive performance in overcoming noise, outliers, and density variations. However, registering point cloud pairs in the case of partial overlap is still a challenge. This…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Guofeng Mei , Fabio Poiesi , Cristiano Saltori , Jian Zhang , Elisa Ricci , Nicu Sebe

In the era of pre-trained models, image clustering task is usually addressed by two relevant stages: a) to produce features from pre-trained vision models; and b) to find clusters from the pre-trained features. However, these two stages are…

计算机视觉与模式识别 · 计算机科学 2025-01-09 W. He , Z. Huang , X. Meng , X. Qi , R. Xiao , C. -G. Li

Recent work on overfitting Bayesian mixtures of distributions offers a powerful framework for clustering multivariate data using a latent Gaussian model which resembles the factor analysis model. The flexibility provided by overfitting…

统计方法学 · 统计学 2019-08-29 Panagiotis Papastamoulis

Involved in mitotic condensation, interaction of transcriptional regulatory elements or isolation of structural domains, understanding loop formation is becoming a paradigm in the deciphering of chromatin architecture and its functional…

定量方法 · 定量生物学 2024-09-17 Michaël Liefsoens , Timothy Földes , Maria Barbi

Markov Chain Monte Carlo (MCMC) algorithms are frequently used to perform inference under a Bayesian modeling framework. Convergence diagnostics, such as traceplots, the Gelman-Rubin potential scale reduction factor, and effective sample…

Electron ptychography provides new opportunities to resolve atomic structures with deep sub-angstrom spatial resolution and studying electron-beam sensitive materials with high dose efficiency. In practice, obtaining accurate ptychography…

材料科学 · 物理学 2022-04-26 Michael C. Cao , Zhen Chen , Yi Jiang , Yimo Han

Humans possess an innate ability to group objects by similarity, a cognitive mechanism that clustering algorithms aim to emulate. Recent advances in community detection have enabled the discovery of configurations -- valid hierarchical…

机器学习 · 计算机科学 2025-10-23 Juntang Wang , Hao Wu , Runkun Guo , Yihan Wang , Dongmian Zou , Shixin Xu

We present a mass lumping approach based on an isogeometric Petrov-Galerkin method that preserves higher-order spatial accuracy in explicit dynamics calculations irrespective of the polynomial degree of the spline approximation. To…

计算工程、金融与科学 · 计算机科学 2023-09-29 Thi-Hoa Nguyen , René R. Hiemstra , Sascha Eisenträger , Dominik Schillinger

Bayesian max-margin models have shown superiority in various practical applications, such as text categorization, collaborative prediction, social network link prediction and crowdsourcing, and they conjoin the flexibility of Bayesian…

机器学习 · 统计学 2016-10-19 Wenbo Hu , Jun Zhu , Bo Zhang

We introduce the ParClusterers Benchmark Suite (PCBS) -- a collection of highly scalable parallel graph clustering algorithms and benchmarking tools that streamline comparing different graph clustering algorithms and implementations. The…

分布式、并行与集群计算 · 计算机科学 2024-11-18 Shangdi Yu , Jessica Shi , Jamison Meindl , David Eisenstat , Xiaoen Ju , Sasan Tavakkol , Laxman Dhulipala , Jakub Łącki , Vahab Mirrokni , Julian Shun

A computational approach via implementation of the Principle Component Analysis (PCA) and Gaussian Mixture (GM) clustering methods from Machine Learning (ML) algorithms to identify domain structures of supercooled liquids is developed. Raw…

统计力学 · 物理学 2022-03-24 Viet Nguyen , Xueyu Song

Most existing popular methods for learning graph embedding only consider fixed-order global structural features and lack structures hierarchical representation. To address this weakness, we propose a novel graph embedding algorithm named…

机器学习 · 计算机科学 2021-02-03 Xue Liu , Wei Wei , Xiangnan Feng , Xiaobo Cao , Dan Sun

h-BCN is an intriguing material system where the bandgap varies considerably depending on the atomic configuration, even at a fixed composition. Exploring stable atomic configurations in this system is crucial for discussing the energetic…

Herein, we present the application of MEGAN, our explainable AI (xAI) model, for the identification of small colloidally aggregating molecules (SCAMs). This work offers solutions to the long-standing problem of false positives caused by…

生物大分子 · 定量生物学 2025-05-28 Hunter Sturm , Jonas Teufel , Kaitlin A. Isfeld , Pascal Friederich , Rebecca L. Davis

Structure-based drug design (SBDD), which maps target proteins to candidate molecular ligands, is a fundamental task in drug discovery. Effectively aligning protein structural representations with molecular representations, and ensuring…

人工智能 · 计算机科学 2025-11-03 Wei Zhang , Zekun Guo , Yingce Xia , Peiran Jin , Shufang Xie , Tao Qin , Xiang-Yang Li