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We introduce a lattice random walk discretisation scheme for stochastic differential equations (SDEs) that samples binary or ternary increments at each step, suppressing complex drift and diffusion computations to simple 1 or 2 bit random…

数值分析 · 数学 2026-02-18 Samuel Duffield , Maxwell Aifer , Denis Melanson , Zach Belateche , Patrick J. Coles

We consider a distributed stochastic optimization problem in networks with finite number of nodes. Each node adjusts its action to optimize the global utility of the network, which is defined as the sum of local utilities of all nodes.…

信息论 · 计算机科学 2018-07-31 Wenjie Li , Mohamad Assaad

This paper addresses the challenge of identifying a minimal subset of discrete, independent variables that best predicts a binary class. We propose an efficient iterative method that sequentially selects variables based on which one…

统计计算 · 统计学 2025-11-03 María del Carmen Romero , Mariana del Fresno , Alejandro Clausse

We propose an extrapolation technique that allows accuracy improvement of the discrete dipole approximation computations. The performance of this technique was studied empirically based on extensive simulations for 5 test cases using many…

光学 · 物理学 2008-07-29 Maxim A. Yurkin , Valeri P. Maltsev , Alfons G. Hoekstra

With changes in privacy laws, there is often a hard requirement for client data to remain on the device rather than being sent to the server. Therefore, most processing happens on the device, and only an altered element is sent to the…

密码学与安全 · 计算机科学 2022-12-27 Ajinkya K Mulay

Differential privacy (DP) considers a scenario, where an adversary has almost complete information about the entries of a database This worst-case assumption is likely to overestimate the privacy thread for an individual in real life.…

密码学与安全 · 计算机科学 2025-04-16 Dennis Breutigam , Rüdiger Reischuk

Wireless devices need spectrum to communicate. With the increase in the number of devices competing for the same spectrum, it has become nearly impossible to support the throughput requirements of all the devices through current spectrum…

网络与互联网体系结构 · 计算机科学 2021-11-23 Aniq Ur Rahman , Mustafa A. Kishk , Mohamed-Slim Alouini

An information collection problem in a wireless network with random events is considered. Wireless devices report on each event using one of multiple reporting formats. Each format has a different quality and uses different data lengths.…

最优化与控制 · 数学 2015-01-12 Sucha Supittayapornpong , Michael J. Neely

Sampling technique has become one of the recent research focuses in the graph-related fields. Most of the existing graph sampling algorithms tend to sample the high degree or low degree nodes in the complex networks because of the…

社会与信息网络 · 计算机科学 2018-02-02 Junpeng Zhu , Hui Li , Mei Chen , Zhenyu Dai , Ming Zhu

For large-scale cyber-physical systems, the collaboration of spatially distributed sensors is often needed to perform the state estimation process. Privacy concerns naturally arise from disclosing sensitive measurement signals to a cloud…

密码学与安全 · 计算机科学 2023-05-15 Mohammed M. Dawoud , Changxin Liu , Amr Alanwar , Karl H. Johansson

The degree distribution is an important characteristic of complex networks. In many data analysis applications, the networks should be represented as fixed-length feature vectors and therefore the feature extraction from the degree…

社会与信息网络 · 计算机科学 2014-07-23 Sadegh Aliakbary , Jafar Habibi , Ali Movaghar

Recent studies have highlighted the benefits of generating multiple synthetic datasets for supervised learning, from increased accuracy to more effective model selection and uncertainty estimation. These benefits have clear empirical…

机器学习 · 计算机科学 2025-04-28 Ossi Räisä , Antti Honkela

We initiate an investigation of private sampling from distributions. Given a dataset with $n$ independent observations from an unknown distribution $P$, a sampling algorithm must output a single observation from a distribution that is close…

机器学习 · 计算机科学 2022-11-16 Sofya Raskhodnikova , Satchit Sivakumar , Adam Smith , Marika Swanberg

Abstraction is a successful technique in software verification, and interpolation on infeasible error paths is a successful approach to automatically detect the right level of abstraction in counterexample-guided abstraction refinement.…

软件工程 · 计算机科学 2015-02-03 Dirk Beyer , Stefan Löwe , Philipp Wendler

Federated learning (FL) enables distributed clients to collaboratively train a machine learning model without sharing raw data with each other. However, it suffers the leakage of private information from uploading models. In addition, as…

分布式、并行与集群计算 · 计算机科学 2023-12-25 Kang Wei , Jun Li , Chuan Ma , Ming Ding , Feng Shu , Haitao Zhao , Wen Chen , Hongbo Zhu

We consider a wireless network composed of three nodes and limited by the half-duplex and total power constraints. This formulation encompasses many of the special cases studied in the literature and allows for capturing the common features…

信息论 · 计算机科学 2007-07-13 Lifeng Lai , Ke Liu , Hesham El Gamal

Streaming data collection is essential to real-time data analytics in various IoTs and mobile device-based systems, which, however, may expose end users' privacy. Local differential privacy (LDP) is a promising solution to…

数据库 · 计算机科学 2022-04-04 Xuebin Ren , Liang Shi , Weiren Yu , Shusen Yang , Cong Zhao , Zongben Xu

In this paper, we describe our approach to achieve distributed differential privacy by sampling alone. Our mechanism works in the semi-honest setting (honest-but-curious whereby aggregators attempt to peek at the data though follow the…

密码学与安全 · 计算机科学 2017-06-16 Joshua Joy

In this paper, we propose a novel self-distillation method for fake speech detection (FSD), which can significantly improve the performance of FSD without increasing the model complexity. For FSD, some fine-grained information is very…

声音 · 计算机科学 2023-03-03 Jun Xue , Cunhang Fan , Jiangyan Yi , Chenglong Wang , Zhengqi Wen , Dan Zhang , Zhao Lv

We study the estimation of distance d between two wireless nodes by means of their wideband channels to a third node, called observer. The motivating principle is that the channel impulse responses are similar for small d and drift apart…

信号处理 · 电气工程与系统科学 2024-10-30 Gregor Dumphart , Marc Kuhn , Armin Wittneben , Florian Trösch