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Inferring the exact parameters of a neural network with only query access is an NP-Hard problem, with few practical existing algorithms. Solutions would have major implications for security, verification, interpretability, and understanding…

机器学习 · 计算机科学 2024-10-01 Judah Goldfeder , Quinten Roets , Gabe Guo , John Wright , Hod Lipson

Random network models, constrained to reproduce specific statistical features, are often used to represent and analyze network data and their mathematical descriptions. Chief among them, the configuration model constrains random networks by…

社会与信息网络 · 计算机科学 2025-01-28 Laurent Hébert-Dufresne , Jean-Gabriel Young , Alexander Daniels , Alec Kirkley , Antoine Allard

It has been recognized that many complex dynamical systems in the real world require a description in terms of multiplex networks, where a set of common, mutually connected nodes belong to distinct network layers and play a different role…

物理与社会 · 物理学 2019-12-23 Chuang Ma , Han-Shuang Chen , Xiang Li , Ying-Cheng Lai , Hai-Feng Zhang

Reconstructing a surface from a point cloud is an underdetermined problem. We use a neural network to study and quantify this reconstruction uncertainty under a Poisson smoothness prior. Our algorithm addresses the main limitations of…

图形学 · 计算机科学 2023-09-22 Silvia Sellán , Alec Jacobson

In this paper, we study the problem of constructing a network by observing ordered connectivity constraints, which we define herein. These ordered constraints are made to capture realistic properties of real-world problems that are not…

数据结构与算法 · 计算机科学 2017-02-24 Yi Huang , Mano Vikash Janardhanan , Lev Reyzin

We study the network dismantling problem, which consists in determining a minimal set of vertices whose removal leaves the network broken into connected components of sub-extensive size. For a large class of random graphs, this problem is…

物理与社会 · 物理学 2016-11-16 Alfredo Braunstein , Luca Dall'Asta , Guilhem Semerjian , Lenka Zdeborová

In this work, we explore the state-space formulation of a network process to recover, from partial observations, the underlying network topology that drives its dynamics. To do so, we employ subspace techniques borrowed from system…

信号处理 · 电气工程与系统科学 2019-06-26 Mario Coutino , Elvin Isufi , Takanori Maehara , Geert Leus

We study recovering a 1D order from a noisy, locally sampled pairwise comparison matrix under a tight query budget. We recast the task as reconstructing a sparse, noisy line graph and present, to our knowledge, the first method that…

数据结构与算法 · 计算机科学 2025-11-13 Fuming Yang , Yaron Meirovitch , Jeff W. Lichtman

Reconstructing a signal on a graph from noisy observations of a subset of the vertices is a fundamental problem in the field of graph signal processing. This paper investigates how sample size affects reconstruction error in the presence of…

信号处理 · 电气工程与系统科学 2026-02-26 Baskaran Sripathmanathan , Xiaowen Dong , Michael Bronstein

Signal processing on graph is attracting more and more attentions. For a graph signal in the low-frequency subspace, the missing data associated with unsampled vertices can be reconstructed through the sampled data by exploiting the…

信息论 · 计算机科学 2015-06-23 Xiaohan Wang , Pengfei Liu , Yuantao Gu

We consider the problem of signal reconstruction for a system under sparse signal corruption by a malicious agent. The reconstruction problem follows the standard error coding problem that has been studied extensively in the literature. We…

最优化与控制 · 数学 2023-04-28 Yu Zheng , Olugbenga Moses Anubi , Lalit Mestha , Hema Achanta

We consider the problem of selecting a minimum size subset of nodes in a network, that allows to activate all the nodes of the network. We present a fast and simple algorithm that, in real-life networks, produces solutions that outperform…

数据结构与算法 · 计算机科学 2016-10-18 Gennaro Cordasco , Luisa Gargano , Adele Anna Rescigno

Currently, most deep learning methods cannot solve the problem of scarcity of industrial product defect samples and significant differences in characteristics. This paper proposes an unsupervised defect detection algorithm based on a…

计算机视觉与模式识别 · 计算机科学 2022-12-27 Chao Hu , Jian Yao , Weijie Wu , Weibin Qiu , Liqiang Zhu

The ubiquity of modular structure in real-world complex networks is being the focus of attention in many trials to understand the interplay between network topology and functionality. The best approaches to the identification of modular…

计算物理 · 物理学 2007-07-30 A. Arenas , J. Duch , A. Fernandez , S. Gomez

The network inference problem consists of reconstructing the edge set of a network given traces representing the chronology of infection times as epidemics spread through the network. This problem is a paradigmatic representative of…

数据结构与算法 · 计算机科学 2013-08-14 Bruno Abrahao , Flavio Chierichetti , Robert Kleinberg , Alessandro Panconesi

Motivated by the philosophy and phenomenal success of compressed sensing, the problem of reconstructing a matrix from a sampling of its entries has attracted much attention recently. Such a problem can be viewed as an information-theoretic…

信息论 · 计算机科学 2009-05-15 Zhisu Zhu , Anthony Man-Cho So , Yinyu Ye

This paper identifies and solves a new optimization problem: Given a belief network (BN) and a target ordering on its variables, how can we efficiently derive its minimal I-map whose arcs are consistent with the target ordering? We present…

人工智能 · 计算机科学 2013-03-08 Izhar Matzkevich , Bruce Abramson

We present a new method for scaling automatic configuration of computer networks. The key idea is to relax the computationally hard search problem of finding a configuration that satisfies a given specification into an approximate objective…

网络与互联网体系结构 · 计算机科学 2022-11-04 Luca Beurer-Kellner , Martin Vechev , Laurent Vanbever , Petar Veličković

A multiplex is a collection of network layers, each representing a specific type of edges. This appears to be a genuine representation for many real-world systems. However, due to a variety of potential factors, such as limited budget and…

物理与社会 · 物理学 2023-02-22 Daniel Kaiser , Siddharth Patwardhan , Filippo Radicchi

Exploring statistics of locally connected subgraph patterns (also known as network motifs) has helped researchers better understand the structure and function of biological and online social networks (OSNs). Nowadays the massive size of…

社会与信息网络 · 计算机科学 2014-03-28 Pinghui Wang , John C. S. Lui , Bruno Ribeiro , Don Towsley , Junzhou Zhao , Xiaohong Guan