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Clustering is a NP-hard problem. Thus, no optimal algorithm exists, heuristics are applied to cluster the data. Heuristics can be very resource-intensive, if not applied properly. For substantially large data sets computational efficiencies…

Databases · Computer Science 2020-03-11 Mujahid Sultan

Privacy-preserving data splitting is a technique that aims to protect data privacy by storing different fragments of data in different locations. In this work we give a new combinatorial formulation to the data splitting problem. We see the…

Cryptography and Security · Computer Science 2018-01-19 Oriol Farràs , Jordi Ribes-González , Sara Ricci

In this paper, we investigate federated clustering (FedC) problem, that aims to accurately partition unlabeled data samples distributed over massive clients into finite clusters under the orchestration of a parameter server, meanwhile…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-07 Yiwei Li , Shuai Wang , Chong-Yung Chi , Tony Q. S. Quek

Modern multi-layer networks are commonly stored and analyzed in a local and distributed fashion because of the privacy, ownership, and communication costs. The literature on the model-based statistical methods for community detection based…

Social and Information Networks · Computer Science 2024-10-22 Xiao Guo , Xiang Li , Xiangyu Chang , Shujie Ma

This paper explores the privacy of cloud outsourced Model Predictive Control (MPC) for a linear system with input constraints. In our cloud-based architecture, a client sends her private states to the cloud who performs the MPC computation…

Optimization and Control · Mathematics 2018-09-20 Andreea B. Alexandru , Manfred Morari , George J. Pappas

In pervasive computing environments, Location- Based Services (LBSs) are becoming increasingly important due to continuous advances in mobile networks and positioning technologies. Nevertheless, the wide deployment of LBSs can jeopardize…

Cryptography and Security · Computer Science 2016-11-17 Lin Yao , Chi Lin , Xiangwei Kong , Feng Xia , Guowei Wu

The use of distributed optimization in machine learning can be motivated either by the resulting preservation of privacy or the increase in computational efficiency. On the one hand, training data might be stored across multiple devices.…

Optimization and Control · Mathematics 2023-07-26 Vassilios Yfantis , Achim Wagner , Martin Ruskowski

Data splitting preserves privacy by partitioning data into various fragments to be stored remotely and shared. It supports most data operations because data can be stored in clear as opposed to methods that rely on cryptography. However,…

Cryptography and Security · Computer Science 2022-11-22 Randolph Loh , Vrizlynn L. L. Thing

In recent years, the growing need to leverage sensitive data across institutions has led to increased attention on federated learning (FL), a decentralized machine learning paradigm that enables model training without sharing raw data.…

A large amount of data and applications are migrated by researchers, stakeholders, academia, and business organizations to the cloud environment due to its large variety of services, which involve the least maintenance cost, maximum…

Cryptography and Security · Computer Science 2023-06-16 Rishabh Gupta , Deepika Saxena , Ashutosh Kumar Singh

We study the private $k$-median and $k$-means clustering problem in $d$ dimensional Euclidean space. By leveraging tree embeddings, we give an efficient and easy to implement algorithm, that is empirically competitive with state of the art…

We investigate the problem of privacy preserving distributed matrix multiplication in edge networks using multi-party computation (MPC). Coded multi-party computation (CMPC) is an emerging approach to reduce the required number of workers…

Information Theory · Computer Science 2022-03-16 Elahe Vedadi , Yasaman Keshtkarjahromi , Hulya Seferoglu

Notwithstanding the popularity of conventional clustering algorithms such as K-means and probabilistic clustering, their clustering results are sensitive to the presence of outliers in the data. Even a few outliers can compromise the…

Machine Learning · Statistics 2015-05-27 Pedro A. Forero , Vassilis Kekatos , Georgios B. Giannakis

Cloud computing enables users to process and store data remotely on high-performance computers and servers by sharing data over the Internet. However, transferring data to clouds causes unavoidable privacy concerns. Here, we present a…

Cryptography and Security · Computer Science 2024-08-12 Haleh Hayati , Nathan van de Wouw , Carlos Murguia

Cloud computing is a powerful and popular information technology paradigm that enables data service outsourcing and provides higher-level services with minimal management effort. However, it is still a key challenge to protect data privacy…

Quantum Physics · Physics 2024-05-14 Wenjie Liu , Peipei Gao , Zhihao Liu , Hanwu Chen , Maojun Zhang

Feature selection is a technique that extracts a meaningful subset from a set of features in training data. When the training data is large-scale, appropriate feature selection enables the removal of redundant features, which can improve…

Cryptography and Security · Computer Science 2025-05-20 Koki Wakiyama , Tomohiro I , Hiroshi Sakamoto

An increasing number of businesses are replacing their data storage and computation infrastructure with cloud services. Likewise, there is an increased emphasis on performing analytics based on multiple datasets obtained from different data…

Cryptography and Security · Computer Science 2013-10-02 Dinh Tien Tuan Anh , Quach Vinh Thanh , Anwitaman Datta

With the increasing emphasis on privacy regulations, such as GDPR, protecting individual privacy and ensuring compliance have become critical concerns for both individuals and organizations. Privacy-preserving machine learning (PPML) is an…

Cryptography and Security · Computer Science 2024-11-15 Tianpei Lu , Bingsheng Zhang , Lichun Li , Kui Ren

Since the advent of software defined networks ({SDN}), there have been many attempts to outsource the complex and costly local network functionality, i.e. the middlebox, to the cloud in the same way as outsourcing computation and storage.…

Cryptography and Security · Computer Science 2015-02-03 Junjie Shi , Yuan Zhang , Sheng Zhong

Privacy-preserving machine learning (PPML) based on cryptographic protocols has emerged as a promising paradigm to protect user data privacy in cloud-based machine learning services. While it achieves formal privacy protection, PPML often…

Cryptography and Security · Computer Science 2025-07-22 Wenxuan Zeng , Tianshi Xu , Yi Chen , Yifan Zhou , Mingzhe Zhang , Jin Tan , Cheng Hong , Meng Li