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相关论文: Data Security Equals Graph Connectivity

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Knowledge graphs are an efficient method for representing and connecting information across various concepts, useful in reasoning, question answering, and knowledge base completion tasks. They organize data by linking points, enabling…

Financial risks can propagate across both tightly coupled temporal and spatial dimensions, posing significant threats to financial stability. Moreover, risks embedded in unlabeled data are often difficult to detect. To address these…

风险管理 · 定量金融 2025-02-21 Guanyuan Yu , Qing Li , Yu Zhao , Jun Wang , YiJun Chen , Shaolei Chen

We organize a table of regular graphs with minimal diameters and minimal mean path lengths, large bisection widths and high degrees of symmetries, obtained by enumerations on supercomputers. These optimal graphs, many of which are newly…

离散数学 · 计算机科学 2019-12-30 Yidan Zhang , Xiaolong Huang , Zhipeng Xu , Yuefan Deng

Differential privacy is effective in sharing information and preserving privacy with a strong guarantee. As social network analysis has been extensively adopted in many applications, it opens a new arena for the application of differential…

社会与信息网络 · 计算机科学 2021-04-16 Honglu Jiang , Jian Pei , Dongxiao Yu , Jiguo Yu , Bei Gong , Xiuzhen Cheng

Tabular data typically contains private and important information; thus, precautions must be taken before they are shared with others. Although several methods (e.g., differential privacy and k-anonymity) have been proposed to prevent…

密码学与安全 · 计算机科学 2022-08-26 Jihyeon Hyeong , Jayoung Kim , Noseong Park , Sushil Jajodia

One of the methods used in order to protect a secret K is a secret sharing scheme. In this scheme the secret K is distributed among a finite set of participants P by a special participant called the dealer, in such a way that only…

信息论 · 计算机科学 2020-03-31 Ghanem Meriem , Bouroubi Sadek

In today's highly connected society, we are constantly asked to provide personal information to retailers, voter surveys, medical professionals, and other data collection efforts. The collected data is stored in large data warehouses.…

密码学与安全 · 计算机科学 2023-07-14 Amen Faridoon , M. Tahar Kechadi

Financial transaction fraud prevention faces challenges such as complex relationship structures, concealed behavioral patterns, and dynamically changing data distribution. Discrimination models relying solely on independent sample features…

机器学习 · 计算机科学 2026-05-14 Yunfei Nie , Jiawei Wang , Ruobing Yan , Yuhan Wang , Zouxiaowei Ma , Yilun Wu

Graphical security models constitute a well-known, user-friendly way to represent the security of a system. These kinds of models are used by security experts to identify vulnerabilities and assess the security of a system. The manual…

密码学与安全 · 计算机科学 2023-09-26 Alyzia-Maria Konsta , Beatrice Spiga , Alberto Lluch Lafuente , Nicola Dragoni

Skip graphs are a novel distributed data structure, based on skip lists, that provide the full functionality of a balanced tree in a distributed system where resources are stored in separate nodes that may fail at any time. They are…

数据结构与算法 · 计算机科学 2007-05-23 James Aspnes , Gauri Shah

Deep neural networks (DNNs) have been widely applied to various applications, including image classification, text generation, audio recognition, and graph data analysis. However, recent studies have shown that DNNs are vulnerable to…

密码学与安全 · 计算机科学 2022-10-07 Lichao Sun , Yingtong Dou , Carl Yang , Ji Wang , Yixin Liu , Philip S. Yu , Lifang He , Bo Li

This paper puts a new light on secure data storage inside distributed systems. Specifically, it revisits computational secret sharing in a situation where the encryption key is exposed to an attacker. It comes with several contributions:…

密码学与安全 · 计算机科学 2020-02-18 Katarzyna Kapusta , Gerard Memmi , Matthieu Rambaud

A cyber security problem in a networked system formulated as a resilient graph problem based on a game-theoretic approach is considered. The connectivity of the underlying graph of the network system is reduced by an attacker who removes…

系统与控制 · 电气工程与系统科学 2023-03-14 Yurid Nugraha , Ahmet Cetinkaya , Tomohisa Hayakawa , Hideaki Ishii , Quanyan Zhu

After one year since the entry into force of the GDPR, all web sites and data controllers have updated their procedures to store users' data. The GDPR does not only cover how and what data should be saved by the service providers, but it…

计算机与社会 · 计算机科学 2020-12-29 Luca Bufalieri , Massimo La Morgia , Alessandro Mei , Julinda Stefa

Graph encryption schemes play a crucial role in facilitating secure queries on encrypted graphs hosted on untrusted servers. With applications spanning navigation systems, network topology, and social networks, the need to safeguard…

密码学与安全 · 计算机科学 2024-05-30 Seyni Kane , Anis Bkakria

With the development of information technology, the border of the cyberspace gets much broader, exposing more and more vulnerabilities to attackers. Traditional mitigation-based defence strategies are challenging to cope with the current…

密码学与安全 · 计算机科学 2020-12-15 Zhenyuan Li , Qi Alfred Chen , Runqing Yang , Yan Chen

Federated Learning (FL) has emerged as a potentially powerful privacy-preserving machine learning methodology, since it avoids exchanging data between participants, but instead exchanges model parameters. FL has traditionally been applied…

密码学与安全 · 计算机科学 2022-10-17 Han Wu , Zilong Zhao , Lydia Y. Chen , Aad van Moorsel

Simply restricting the computation to non-sensitive part of the data may lead to inferences on sensitive data through data dependencies. Inference control from data dependencies has been studied in the prior work. However, existing…

数据库 · 计算机科学 2023-12-27 Primal Pappachan , Shufan Zhang , Xi He , Sharad Mehrotra

Tabular data in relational databases represents a significant portion of industrial data. Hence, analyzing and interpreting tabular data is of utmost importance. Application tasks on tabular data are manifold and are often not specified…

机器学习 · 计算机科学 2025-07-09 Astrid Franz , Frederik Hoppe , Marianne Michaelis , Udo Göbel

Rather than anonymizing social graphs by generalizing them to super nodes/edges or adding/removing nodes and edges to satisfy given privacy parameters, recent methods exploit the semantics of uncertain graphs to achieve privacy protection…

社会与信息网络 · 计算机科学 2014-08-07 Hiep H. Nguyen , Abdessamad Imine , Michaël Rusinowitch