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Complex models are often used to understand interactions and drivers of human-induced and/or natural phenomena. It is worth identifying the input variables that drive the model output(s) in a given domain and/or govern specific model…

统计方法学 · 统计学 2023-11-07 Matieyendou Lamboni

The dilepton production from $pC$ and $pCu$ collisions at $T_{lab}=12$ GeV is calculated using the semi-classical BUU transport model, that includes the off-shell propagation of vector mesons nonperturbatively and calculates the width of…

核理论 · 物理学 2009-11-07 E. L. Bratkovskaya

Group convolutional neural networks (G-CNNs) have been shown to increase parameter efficiency and model accuracy by incorporating geometric inductive biases. In this work, we investigate the properties of representations learned by regular…

计算机视觉与模式识别 · 计算机科学 2022-04-05 David M. Knigge , David W. Romero , Erik J. Bekkers

This paper presents a practical, and theoretically well-founded, approach to improve the speed of kernel manifold learning algorithms relying on spectral decomposition. Utilizing recent insights in kernel smoothing and learning with…

机器学习 · 统计学 2015-07-28 Hassan A. Kingravi , Patricio A. Vela , Alexandar Gray

In this article we investigate the effects of conformal transformations on kernel functions used in Support Vector Machines. Our focus lies in the task of text document categorization, which involves assigning each document to a particular…

机器学习 · 计算机科学 2024-06-04 Ioana Rădulescu , Alexandra Băicoianu , Adela Mihai

The Giessen Boltzmann-Uehling-Uhlenbeck transport model with relativistic mean fields is used to simulate $\bar p$-nucleus collisions. Antiproton absorption cross sections and momentum distributions of annihilation products are calculated…

核理论 · 物理学 2009-09-01 A. B. Larionov , I. A. Pshenichnov , I. N. Mishustin , W. Greiner

Diffusion maps are a commonly used kernel-based method for manifold learning, which can reveal intrinsic structures in data and embed them in low dimensions. However, as with most kernel methods, its implementation requires a heavy…

机器学习 · 计算机科学 2019-12-03 Scott Gigante , Jay S. Stanley , Ngan Vu , David van Dijk , Kevin Moon , Guy Wolf , Smita Krishnaswamy

Understanding how atmospheric molecular clusters form and grow is key to resolving one of the biggest uncertainties in climate modelling: the formation of new aerosol particles. While quantum chemistry offers accurate insights into these…

机器学习 · 计算机科学 2025-09-16 Lauri Seppäläinen , Jakub Kubečka , Jonas Elm , Kai Puolamäki

Kernel density estimators with circular data have been studied extensively for decades, as they allow flexible estimations even when the shape of the underlying density is complex. Many recent studies have examined bias correction methods;…

统计方法学 · 统计学 2026-03-03 Yasuhito Tsuruta

Clifford-Steerable CNNs (CSCNNs) provide a unified framework that allows incorporating equivariance to arbitrary pseudo-Euclidean groups, including isometries of Euclidean space and Minkowski spacetime. In this work, we demonstrate that the…

机器学习 · 计算机科学 2025-10-17 Bálint László Szarvas , Maksim Zhdanov

We introduce a new strategy for compositional neural surrogates for radiation-matter interactions, a key task spanning domains from particle physics through nuclear and space engineering to medical physics. Exploiting the locality and the…

Reliable prediction of protein variant effects is crucial for both protein optimization and for advancing biological understanding. For practical use in protein engineering, it is important that we can also provide reliable uncertainty…

生物大分子 · 定量生物学 2024-11-01 Peter Mørch Groth , Mads Herbert Kerrn , Lars Olsen , Jesper Salomon , Wouter Boomsma

Kernel functions may be used in robotics for comparing different poses of a robot, such as in collision checking, inverse kinematics, and motion planning. These comparisons provide distance metrics often based on joint space measurements…

机器人学 · 计算机科学 2019-10-16 Nikhil Das , Michael C. Yip

The role of kernels is central to machine learning. Motivated by the importance of power-law distributions in statistical modeling, in this paper, we propose the notion of power-law kernels to investigate power-laws in learning problem. We…

机器学习 · 计算机科学 2013-04-02 Debarghya Ghoshdastidar , Ambedkar Dukkipati

When analyzing modern machine learning algorithms, we may need to handle kernel density estimation (KDE) with intricate kernels that are not designed by the user and might even be irregular and asymmetric. To handle this emerging challenge,…

统计理论 · 数学 2021-06-09 Hau-Tieng Wu , Nan Wu

In this paper we revisit the kernel density estimation problem: given a kernel $K(x, y)$ and a dataset of $n$ points in high dimensional Euclidean space, prepare a data structure that can quickly output, given a query $q$, a…

数据结构与算法 · 计算机科学 2020-11-16 Moses Charikar , Michael Kapralov , Navid Nouri , Paris Siminelakis

Kernel survival analysis models estimate individual survival distributions with the help of a kernel function, which measures the similarity between any two data points. Such a kernel function can be learned using deep kernel survival…

机器学习 · 计算机科学 2025-02-18 George H. Chen

Cross-correlator plays a significant role in many visual perception tasks, such as object detection and tracking. Beyond the linear cross-correlator, this paper proposes a kernel cross-correlator (KCC) that breaks traditional limitations.…

计算机视觉与模式识别 · 计算机科学 2018-12-06 Chen Wang , Le Zhang , Lihua Xie , Junsong Yuan

Relativistic beams of heavy ions interacting with various nuclear targets allow to study a broad range of problems starting from nuclear equation of state to the traditional nuclear structure. Some questions which were impossible to answer…

核理论 · 物理学 2024-07-09 A. B. Larionov , Yu. N. Uzikov

Incoherent rapidity distributions of vector mesons are computed in dipole model in PbPb ultraperipheral collisions at the CERN Large Hadron Collider (LHC). The IIM model fitted from newer data is employed in the dipole amplitude. The…

高能物理 - 唯象学 · 物理学 2018-05-16 Ya-Ping Xie , Xurong Chen