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Pre-trained deep image representations are useful for post-training tasks such as classification through transfer learning, image retrieval, and object detection. Data augmentations are a crucial aspect of pre-training robust…

计算机视觉与模式识别 · 计算机科学 2023-02-23 Sangnie Bhardwaj , Willie McClinton , Tongzhou Wang , Guillaume Lajoie , Chen Sun , Phillip Isola , Dilip Krishnan

We use parsimonious diffusion maps (PDMs) to discover the latent dynamics of high-fidelity Navier-Stokes simulations with a focus on the 2D fluidic pinball problem. By varying the Reynolds number, different flow regimes emerge, ranging from…

流体动力学 · 物理学 2024-11-05 Alessandro Della Pia , Dimitris Patsatzis , Lucia Russo , Constantinos Siettos

3D-aware visual pretraining has proven effective in improving the performance of downstream robotic manipulation tasks. However, existing methods are constrained to Euclidean embedding spaces, whose flat geometry limits their ability to…

机器人学 · 计算机科学 2026-03-13 Jin Yang , Ping Wei , Yixin Chen , Nanning Zheng

We consider the matrix representation of the Eisenstein numbers and in this context we discuss the theory of the Pseudo Hyperbolic Functions. We develop a geometrical interpretation and show the usefulness of the method in Physical problems…

数学物理 · 物理学 2010-03-16 G. Dattoli , E. Sabia , M. Del Franco

Generating graphs with hierarchical structures remains a fundamental challenge due to the limitations of Euclidean geometry in capturing exponential complexity. Here we introduce \textbf{GGBall}, a novel hyperbolic framework for graph…

机器学习 · 计算机科学 2026-02-20 Tianci Bu , Chuanrui Wang , Hao Ma , Haoren Zheng , Xin Lu , Tailin Wu

Continual learning has traditionally focused on classifying either instances or classes, but real-world applications, such as robotics and self-driving cars, require models to handle both simultaneously. To mirror real-life scenarios, we…

计算机视觉与模式识别 · 计算机科学 2025-06-13 Melika Ayoughi , Mina Ghadimi Atigh , Mohammad Mahdi Derakhshani , Cees G. M. Snoek , Pascal Mettes , Paul Groth

Hyperbolic spaces have been quite popular in the recent past for representing hierarchically organized data. Further, several classification algorithms for data in these spaces have been proposed in the literature. These algorithms mainly…

机器学习 · 统计学 2023-09-29 Xiran Fan , Chun-Hao Yang , Baba C. Vemuri

Traditional machine learning depends on high-precision arithmetic and near-ideal hardware assumptions, which is increasingly challenged by variability in aggressively scaled semiconductor devices. Compute-in-memory (CIM) architectures…

新兴技术 · 计算机科学 2026-04-15 William Youngwoo Chung , Hamza Errahmouni Barkam , Tamoghno Das , Mohsen Imani

The cognitive framework of conceptual spaces [3] provides geometric means for representing knowledge. A conceptual space is a high-dimensional space whose dimensions are partitioned into so-called domains. Within each domain, the Euclidean…

人工智能 · 计算机科学 2017-09-25 Lucas Bechberger

We introduce a spectrum of monotone coarse invariants for metric measure spaces called Poincar\'{e} profiles. The two extremes of this spectrum determine the growth of the space, and the separation profile as defined by…

群论 · 数学 2020-11-09 David Hume , John M. Mackay , Romain Tessera

We strengthen the connection between the Ahlfors-regular (AR) conformal dimension Confdim$(Z)$ of a compact AR metric space $Z$ and a certain critical exponent of the Poincar\'e profiles $p_{\Lambda}$ of its hyperbolic cone $X$ in the sense…

群论 · 数学 2025-11-14 David Hume , John M. Mackay

Understanding the intricate mappings between visual stimuli and neural responses is a fundamental challenge in cognitive neuroscience. While current approaches predominantly align images and functional magnetic resonance imaging (fMRI)…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Zihan Ma , Tian Xia , Kexin Wang , Xiao Li , Xiaowei He , Yudan Ren

Hyperbolic networks have shown prominent improvements over their Euclidean counterparts in several areas involving hierarchical datasets in various domains such as computer vision, graph analysis, and natural language processing. However,…

机器学习 · 计算机科学 2022-06-09 Nurendra Choudhary , Chandan K. Reddy

We study a model of machine teaching where the teacher mapping is constructed from a size function on both concepts and examples. The main question in machine teaching is the minimum number of examples needed for any concept, the so-called…

组合数学 · 数学 2024-02-12 Brigt Håvardstun , Jan Kratochvíl , Joakim Sunde , Jan Arne Telle

Models for shallow water flow often assume that the lateral velocity is constant over the water height. The recently derived shallow water moment equations are an extension of these standard shallow water equations. The extended models…

数值分析 · 数学 2025-04-03 Rik Verbiest , Julian Koellermeier

In this paper we prove higher order Poincar\'e inequalities involving radial derivatives namely, \begin{equation*} \int_{\mathbb{H}^{N}} |\nabla_{r,\mathbb{H}^{N}}^{k} u|^2 \, {\rm d}v_{\mathbb{H}^{N}} \geq…

泛函分析 · 数学 2021-03-09 Prasun Roychowdhury

We present a machine learning framework capable of consistently inferring mathematical expressions of hyperelastic energy functionals for incompressible materials from sparse experimental data and physical laws. To achieve this goal, we…

计算工程、金融与科学 · 计算机科学 2024-02-13 Bahador Bahmani , WaiChing Sun

Many real-world networks exhibit hierarchical, tree-like structure and heavy-tailed degree distributions, phenomena not readily captured by standard statistical models for network data. Extensions of the popular continuous latent space…

统计方法学 · 统计学 2026-05-13 Yiwei Gong , Anna L. Smith , Dena Asta , Catherine A. Calder

Single Positive Multi-Label Learning (SPMLL) addresses the challenging scenario where each training sample is annotated with only one positive label despite potentially belonging to multiple categories, making it difficult to capture…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Yiming Lin , Shang Wang , Junkai Zhou , Qiufeng Wang , Xiao-Bo Jin , Kaizhu Huang

Coherent structures such as jets and vortices appear in two-dimensional (2D) turbulence. To gain insight into both numerical simulation and equilibrium statistical mechanical descriptions of 2D Euler flows, the Euler equation with added…

流体动力学 · 物理学 2014-07-28 Wanming Qi , J. B. Marston