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We propose a modification to the random destruction of graphs: Given a finite network with a distinguished set of sources and targets, remove (cut) vertices at random, discarding components that do not contain a source node. We investigate…

概率论 · 数学 2022-01-05 Fabian Burghart

We present a new class of estimators of Shannon entropy for severely undersampled discrete distributions. It is based on a generalization of an estimator proposed by T. Schuermann, which itself is a generalization of an estimator proposed…

信息论 · 计算机科学 2021-11-30 Peter Grassberger

We present a new approach to sample from generic binary distributions, based on an exact Hamiltonian Monte Carlo algorithm applied to a piecewise continuous augmentation of the binary distribution of interest. An extension of this idea to…

统计计算 · 统计学 2015-10-13 Ari Pakman , Liam Paninski

The maximum-entropy sampling problem (MESP) aims to select the most informative principal submatrix of a prespecified size from a given covariance matrix. This paper proposes an augmented factorization bound for MESP based on concave…

最优化与控制 · 数学 2024-10-15 Yongchun Li

In this paper, we revisit the problem of sampling edges in an unknown graph $G = (V, E)$ from a distribution that is (pointwise) almost uniform over $E$. We consider the case where there is some a priori upper bound on the arboriciy of $G$.…

计算复杂性 · 计算机科学 2019-02-22 Talya Eden , Dana Ron , Will Rosenbaum

We present a general theory of spontaneous emission at exceptional points (EPs)---exotic degeneracies in non-Hermitian systems. Our theory extends beyond spontaneous emission to any light--matter interaction described by the local density…

The choice of how to represent an abstract type can have a major impact on the performance of a program, yet mainstream compilers cannot perform optimizations at such a high level. When dealing with optimizations of data type…

编程语言 · 计算机科学 2024-09-13 Viktor Palmkvist , Anders Ågren Thuné , Elias Castegren , David Broman

For a finite graph $G=(V,E)$ let $G^*$ be obtained by considering a random perfect matching of $V$ and adding the corresponding edges to $G$ with weight $\varepsilon$, while assigning weight 1 to the original edges of $G$. We consider…

概率论 · 数学 2023-10-17 Zsuzsanna Baran , Jonathan Hermon , Anđela Šarković , Perla Sousi

In the decremental single-source shortest paths (SSSP) problem, the input is an undirected graph $G=(V,E)$ with $n$ vertices and $m$ edges undergoing edge deletions, together with a fixed source vertex $s\in V$. The goal is to maintain a…

数据结构与算法 · 计算机科学 2020-09-21 Julia Chuzhoy , Thatchaphol Saranurak

We propose generalized additive partial linear models for complex data which allow one to capture nonlinear patterns of some covariates, in the presence of linear components. The proposed method improves estimation efficiency and increases…

统计理论 · 数学 2014-05-26 Li Wang , Lan Xue , Annie Qu , Hua Liang

Conditional generative models aim to learn the underlying joint distribution of data and labels to achieve conditional data generation. Among them, the auxiliary classifier generative adversarial network (AC-GAN) has been widely used, but…

机器学习 · 计算机科学 2022-06-20 Liang Hou , Qi Cao , Huawei Shen , Siyuan Pan , Xiaoshuang Li , Xueqi Cheng

This paper is devoted to establishing exponential bounds for the probabilities of deviation of a sample sum from its expectation, when the variables involved in the summation are obtained by sampling in a finite population according to a…

统计理论 · 数学 2016-10-13 Patrice Bertail , Stephan Clémençon

In this paper we give improved constructions of several central objects in the literature of randomness extraction and tamper-resilient cryptography. Our main results are: (1) An explicit seeded non-malleable extractor with error $\epsilon$…

计算复杂性 · 计算机科学 2016-08-02 Xin Li

We introduce a new family of estimators for unnormalized statistical models. Our family of estimators is parameterized by two nonlinear functions and uses a single sample from an auxiliary distribution, generalizing Maximum Likelihood Monte…

机器学习 · 计算机科学 2012-03-19 Miika Pihlaja , Michael Gutmann , Aapo Hyvarinen

We introduce probability-graphons which are probability kernels that generalize graphons to the case of weighted graphs. Probability-graphons appear as the limit objects to study sequences of large weighted graphs whose distribution of…

离散数学 · 计算机科学 2025-06-12 Romain Abraham , Jean-François Delmas , Julien Weibel

Explanations in a recommender system assist users in making informed decisions among a set of recommended items. Great research attention has been devoted to generating natural language explanations to depict how the recommendations are…

信息检索 · 计算机科学 2022-02-22 Peng Wang , Renqin Cai , Hongning Wang

We consider a bound on the bias reduction of a random number generator by processing based on binary linear codes. We introduce a new bound on the total variation distance of the processed output based on the weight distribution of the code…

信息论 · 计算机科学 2014-05-13 Alessio Meneghetti , Massimiliano Sala , Alessandro Tomasi

We establish the incompressible limit of weakly asymmetric simple exclusion processes coupled through particle collisions. The incompressible limit depends on various parameters in the particle system and is linked to fluid dynamics…

概率论 · 数学 2024-11-13 Patrick van Meurs , Kenkichi Tsunoda , Lu Xu

Given data drawn from an unknown distribution, $D$, to what extent is it possible to ``amplify'' this dataset and output an even larger set of samples that appear to have been drawn from $D$? We formalize this question as follows: an…

机器学习 · 计算机科学 2024-08-27 Brian Axelrod , Shivam Garg , Vatsal Sharan , Gregory Valiant

We study least-squares trace regression when the parameter is the sum of a $r$-low-rank matrix and a $s$-sparse matrix and a fraction $\epsilon$ of the labels is corrupted. For subgaussian distributions and feature-dependent noise, we…

统计理论 · 数学 2024-01-08 Philip Thompson