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We introduce Deep Sigma Point Processes, a class of parametric models inspired by the compositional structure of Deep Gaussian Processes (DGPs). Deep Sigma Point Processes (DSPPs) retain many of the attractive features of (variational)…

机器学习 · 统计学 2020-12-29 Martin Jankowiak , Geoff Pleiss , Jacob R. Gardner

We introduce a new class of multilevel, adaptive, dual-space methods for computing fast convolutional transforms. These methods can be applied to a broad class of kernels, from the Green's functions for classical partial differential…

数值分析 · 数学 2023-09-12 Shidong Jiang , Leslie Greengard

Determinantal point processes (DPPs) have attracted significant attention in machine learning for their ability to model subsets drawn from a large item collection. Recent work shows that nonsymmetric DPP (NDPP) kernels have significant…

机器学习 · 计算机科学 2021-04-14 Mike Gartrell , Insu Han , Elvis Dohmatob , Jennifer Gillenwater , Victor-Emmanuel Brunel

3D Gaussian Splatting (3DGS) has advanced radiance field reconstruction by enabling real-time rendering. However, its reliance on Gaussian kernels for geometry and low-order Spherical Harmonics (SH) for color encoding limits its ability to…

计算机视觉与模式识别 · 计算机科学 2025-05-07 Rong Liu , Dylan Sun , Meida Chen , Yue Wang , Andrew Feng

Kernel methods are ubiquitous tools in machine learning. However, there is often little reason for the common practice of selecting a kernel a priori. Even if a universal approximating kernel is selected, the quality of the finite sample…

A hallmark of meso-scale interfacial fluids is the multi-faceted, scale-dependent interfacial energy, which often manifests different characteristics across the molecular and continuum scale. The multi-scale nature imposes a challenge to…

计算物理 · 物理学 2023-02-22 Pei Ge , Linfeng Zhang , Huan Lei

A novel multi-task Gaussian process (GP) framework is proposed, by using a common mean process for sharing information across tasks. In particular, we investigate the problem of time series forecasting, with the objective to improve…

统计计算 · 统计学 2022-05-25 Arthur Leroy , Pierre Latouche , Benjamin Guedj , Servane Gey

Precise segmentation of organs and tumors plays a crucial role in clinical applications. It is a challenging task due to the irregular shapes and various sizes of organs and tumors as well as the significant class imbalance between the…

图像与视频处理 · 电气工程与系统科学 2020-07-03 Ziqiang Li , Hong Pan , Yaping Zhu , A. K. Qin

Graph-level anomaly detection aims to identify anomalous graphs or subgraphs within graph datasets, playing a vital role in various fields such as fraud detection, review classification, and biochemistry. While Graph Neural Networks (GNNs)…

机器学习 · 计算机科学 2025-10-10 Liting Li , Yumeng Wang , Yueheng Sun

Accurate prediction of Global Warming Potential (GWP) is essential for assessing the environmental impact of chemical processes and materials. Traditional GWP prediction models rely predominantly on molecular structure, overlooking critical…

机器学习 · 计算机科学 2024-11-04 Jaewook Lee , Xinyang Sun , Ethan Errington , Miao Guo

Deep neural networks are increasingly being used for the analysis of medical images. However, most works neglect the uncertainty in the model's prediction. We propose an uncertainty-aware deep kernel learning model which permits the…

机器学习 · 计算机科学 2021-06-11 Zhiliang Wu , Yinchong Yang , Jindong Gu , Volker Tresp

In this article, a new unified duality theory is developed for Petrov-Galerkin finite element methods. This novel theory is then used to motivate goal-oriented adaptive mesh refinement strategies for use with discontinuous Petrov-Galerkin…

数值分析 · 数学 2019-12-24 Brendan Keith , Ali Vaziri Astaneh , Leszek Demkowicz

This paper introduces a kernel discrepancy-based framework for rerandomization to enhance the precision of causal inference in controlled experiments. We demonstrate that the kernel discrepancy is the key part of the variance upper bound…

统计方法学 · 统计学 2025-11-05 Yiou Li , Lulu Kang

Data-driven prediction of molecular properties presents unique challenges to the design of machine learning methods concerning data structure/dimensionality, symmetry adaption, and confidence management. In this paper, we present a…

机器学习 · 计算机科学 2019-01-31 Yu-Hang Tang , Wibe A. de Jong

In this paper, we critically examine the prevalent practice of using additive mixtures of Mat\'ern kernels in single-output Gaussian process (GP) models and explore the properties of multiplicative mixtures of Mat\'ern kernels for…

机器学习 · 统计学 2023-10-27 Jiawen Chen , Wancen Mu , Yun Li , Didong Li

Bayesian nonparametric mixtures and random partition models are powerful tools for probabilistic clustering. However, standard independent mixture models can be restrictive in some applications such as inference on cell lineage due to the…

统计方法学 · 统计学 2025-07-15 Giovanni Rebaudo , Peter Mueller

Gaussian process regression has recently emerged as a powerful, system-agnostic tool for building global potential energy surfaces (PES) of polyatomic molecules. While the accuracy of GP models of PES increases with the number of potential…

化学物理 · 物理学 2019-07-23 Jun Dai , Roman V. Krems

A molecule's geometry, also known as conformation, is one of a molecule's most important properties, determining the reactions it participates in, the bonds it forms, and the interactions it has with other molecules. Conventional…

机器学习 · 计算机科学 2020-01-01 Elman Mansimov , Omar Mahmood , Seokho Kang , Kyunghyun Cho

Gaussian Processes (GPs) provide a general and analytically tractable way of modeling complex time-varying, nonparametric functions. The Automatic Bayesian Covariance Discovery (ABCD) system constructs natural-language description of…

机器学习 · 计算机科学 2016-02-15 Yunseong Hwang , Anh Tong , Jaesik Choi

Computational prediction of membrane protein (MP) structures is very challenging partially due to lack of sufficient solved structures for homology modeling. Recently direct evolutionary coupling analysis (DCA) sheds some light on protein…

生物大分子 · 定量生物学 2017-05-11 Zhen Li , Sheng Wang , Yizhou Yu , Jinbo Xu