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Related papers: Garland's Technique for Posets and High Dimensiona…

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In recent years, high dimensional expanders have been found to have a variety of applications in theoretical computer science, such as efficient CSPs approximations, improved sampling and list-decoding algorithms, and more. Within that, an…

Computational Complexity · Computer Science 2022-11-18 Tali Kaufman , David Mass

In this article an explicit method (relying on representation theory) to construct packings in Grassmannian space is presented. Infinite families of configurations having only one non-trivial set of principal angles are found using…

Information Theory · Computer Science 2008-03-08 Jean Creignou

Approximating complex probability distributions, such as Bayesian posterior distributions, is of central interest in many applications. We study the expressivity of geometric Gaussian approximations. These consist of approximations by…

Differential Geometry · Mathematics 2025-07-02 Nathaël Da Costa , Bálint Mucsányi , Philipp Hennig

Human poses that are rare or unseen in a training set are challenging for a network to predict. Similar to the long-tailed distribution problem in visual recognition, the small number of examples for such poses limits the ability of…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Ailing Zeng , Xiao Sun , Fuyang Huang , Minhao Liu , Qiang Xu , Stephen Lin

Pedestrian motion, due to its causal nature, is strongly influenced by domain gaps arising from discrepancies between training and testing data distributions. Focusing on 3D human pose estimation, this work presents a controllable human…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Xinhao Hu , Yiyi Zhang , Liqing Zhang , Jianfu Zhang

We present two new explicit constructions of Cayley high dimensional expanders (HDXs) over the abelian group $\mathbb{F}_2^n$. Our expansion proofs use only linear algebra and combinatorial arguments. The first construction gives local…

Combinatorics · Mathematics 2024-11-14 Yotam Dikstein , Siqi Liu , Avi Wigderson

Simplicial complexes form an important class of topological spaces that are frequently used in many application areas such as computer-aided design, computer graphics, and simulation. Representation learning on graphs, which are just 1-d…

Machine Learning · Computer Science 2022-02-03 Mustafa Hajij , Ghada Zamzmi , Theodore Papamarkou , Vasileios Maroulas , Xuanting Cai

Motivated by constructions from applied topology, there has been recent interest in the homological algebra of linear representations of posets, particularly in the context of homological algebra relative to non-standard exact structures. A…

Representation Theory · Mathematics 2025-07-18 Benjamin Blanchette , Justin Desrochers , Eric J. Hanson , Luis Scoccola

We consider the optimal approximate posterior over the top-layer weights in a Bayesian neural network for regression, and show that it exhibits strong dependencies on the lower-layer weights. We adapt this result to develop a correlated…

Machine Learning · Statistics 2021-06-23 Sebastian W. Ober , Laurence Aitchison

This work is based on the talk delivered at Poisson 2008. We review the recent advances in Generalized Kahler geometry while stressing the use of Poisson and symplectic geometry. The derivation of the generalized Kahler potential is…

Symplectic Geometry · Mathematics 2009-12-17 Maxim Zabzine

The generalized partially linear models on Riemannian manifolds are introduced. These models, like ordinary generalized linear models, are a generalization of partially linear models on Riemannian manifolds that allow for response variables…

Methodology · Statistics 2018-03-09 Amelia Simó , M. Victoria Ibáñez , Irene Epifanio , Vicent Gimeno

In this paper, we construct and classify a new family of flips, called generalized Grassmannian flips, by generalizing the construction of standard flips for $\mathbb{P}^m\times \mathbb{P}^n$ to any generalized Grassmannian $G/P$, where $P$…

Algebraic Geometry · Mathematics 2023-09-21 Naichung Conan Leung , Ying Xie

A generalization of Wilson line operators at subleading power in the soft expansion has been recently introduced as an efficient building block of gravitational scattering amplitudes for non-spinning objects. The classical limit in this…

High Energy Physics - Theory · Physics 2024-12-23 Domenico Bonocore , Anna Kulesza , Johannes Pirsch

This paper introduces GS-Pose, a unified framework for localizing and estimating the 6D pose of novel objects. GS-Pose begins with a set of posed RGB images of a previously unseen object and builds three distinct representations stored in a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Dingding Cai , Janne Heikkilä , Esa Rahtu

We generate random functions locally via a novel generalization of Dyson Brownian motion, such that the functions are in a desired differentiability class, while ensuring that the Hessian is a member of the Gaussian orthogonal ensemble…

High Energy Physics - Theory · Physics 2015-03-11 Thorsten Battefeld , Chirag Modi

The paper investigates uniform convergence of wavelet expansions of Gaussian random processes. The convergence is obtained under simple general conditions on processes and wavelets which can be easily verified. Applications of the developed…

Probability · Mathematics 2013-07-29 Yuriy Kozachenko , Andriy Olenko , Olga Polosmak

We consider a multi-parameter model for randomly constructing simplicial complexes. This model interpolates between random clique complexes and Linial-Meshulam random $k$-dimensional complexes, two models that have been extensively studied.…

Algebraic Topology · Mathematics 2015-06-04 Christopher F. Fowler

We present an approach to generalized Riordan arrays which is based on operations in one large group of lower triangular matrices. This allows for direct proofs of many properties of weighted Sheffer sequences, and shows that all the groups…

Combinatorics · Mathematics 2020-08-13 Shaul Zemel

We propose a method SPGNet for 3D human pose estimation that mixes multi-dimensional re-projection into supervised learning. In this method, the 2D-to-3D-lifting network predicts the global position and coordinates of the 3D human pose.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Zihan Wang , Ruimin Chen , Mengxuan Liu , Guanfang Dong , Anup Basu

Since the emergence of large annotated datasets, state-of-the-art hand pose estimation methods have been mostly based on discriminative learning. Recently, a hybrid approach has embedded a kinematic layer into the deep learning structure in…

Computer Vision and Pattern Recognition · Computer Science 2018-07-04 Jan Wöhlke , Shile Li , Dongheui Lee