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Contact tracing has historically been used to retard the spread of infectious diseases, but if it is exercised by hand in large-scale, it is known to be a resource-intensive and quite deficient process. Nowadays, digital contact tracing has…

Cryptography and Security · Computer Science 2021-05-24 Vasileios Kouliaridis , Georgios Kambourakis , Efstratios Chatzoglou , Dimitrios Geneiatakis , Hua Wang

Covid-19 is primarily spread through contact with the virus which may survive on surfaces with lifespan of more than hours. To curb its spread, it is hence of vital importance to detect and quarantine those who have been in contact with the…

Cryptography and Security · Computer Science 2021-01-28 Guanyao Li , Siyan Hu , Shuhan Zhong , Wai Lun Tsui , S. -H. Gary Chan

COVID-19 has radically changed society as we know it. To reduce the spread of the virus, millions across the globe have been forced to work remotely, often in make-shift home offices, and using a plethora of new, unfamiliar digital…

Cryptography and Security · Computer Science 2021-07-09 Jason R. C. Nurse , Nikki Williams , Emily Collins , Niki Panteli , John Blythe , Ben Koppelman

During a pandemic, contact tracing is an essential tool to drive down the infection rate within a population. To accelerate the laborious manual contact tracing process, digital contact tracing (DCT) tools can track contact events…

Cryptography and Security · Computer Science 2020-12-18 Xiang Cheng , Hanchao Yang , Archanaa S Krishnan , Patrick Schaumont , Yaling Yang

Digital contact tracing has emerged as a viable tool supplementing manual contact tracing. To date, more than 100 contact tracing applications have been published to slow down the spread of highly contagious Covid-19. Despite subtle…

Cryptography and Security · Computer Science 2021-08-05 Pai Chet Ng , Petros Spachos , Stefano Gregori , Konstantinos Plataniotis

In this paper, we analyze the problem of optimally allocating resources in a distributed and privacy-preserving manner. We propose a novel distributed optimal resource allocation algorithm with privacy-preserving guarantees, which operates…

Systems and Control · Electrical Eng. & Systems 2022-07-19 Jakob Nylöf , Apostolos I. Rikos , Sebin Gracy , Karl H. Johansson

Localization in mobile networks has been widely applied in many scenarios. However, an entity responsible for location estimation exposes both the target and anchors to potential location leakage at any time, creating serious security…

Cryptography and Security · Computer Science 2026-01-09 Liangbo Xie , Mude Cai , Xiaolong Yang , Mu Zhou , Jiacheng Wang , Dusit Niyato

Contact tracing is of paramount importance when it comes to preventing the spreading of infectious diseases. Contact tracing is usually performed manually by authorized personnel. Manual contact tracing is an inefficient, error-prone,…

Machine Learning · Computer Science 2021-12-22 Pai Chet Ng , Petros Spachos , Konstantinos Plataniotis

Ensuring travelers' safety on roads has become a research challenge in recent years. We introduce a novel safe route planning problem and develop an efficient solution to ensure the travelers' safety on roads. Though few research attempts…

Databases · Computer Science 2022-09-13 Fariha Tabassum Islam , Tanzima Hashem , Rifat Shahriyar

Mobile crowdsensing engages a crowd of individuals to use their mobile devices to cooperatively collect data about social events and phenomena for special interest customers. It can reduce the cost on sensor deployment and improve data…

Cryptography and Security · Computer Science 2018-06-12 Jianbing Ni , Kuan Zhang , Qi Xia , Xiaodong Lin , Xuemin Shen

The COVID19 pandemic had enormous economic and societal consequences. Contact tracing is an effective way to reduce infection rates by detecting potential virus carriers early. However, this was not generally adopted in the recent pandemic,…

Machine Learning · Computer Science 2024-04-23 Rob Romijnders , Christos Louizos , Yuki M. Asano , Max Welling

As a response to the global COVID-19 surge in 2020, many countries have implemented lockdown or stay-at-home policies. If, however, the contact persons of every infected patient could be identified, the number of virus transmissions could…

Networking and Internet Architecture · Computer Science 2020-07-28 Christian Gentner , Daniel Günther , Philipp H. Kindt

In this paper, we propose a global digital platform to avoid and combat epidemics by providing relevant real-time information to support selective lockdowns. It leverages the pervasiveness of wireless connectivity while being trustworthy…

There is a growing need for spatial privacy considerations in the many geo-spatial technologies that have been created as solutions for COVID-19-related issues. Although effective geo-spatial technologies have already been rolled out, most…

Cryptography and Security · Computer Science 2021-01-08 Rohan Iyer , Regina Rex , Kevin P. McPherson , Darshan Gandhi , Aryan Mahindra , Abhishek Singh , Ramesh Raskar

Consensus is fundamental for distributed systems since it underpins key functionalities of such systems ranging from distributed information fusion, decision-making, to decentralized control. In order to reach an agreement, existing…

Optimization and Control · Mathematics 2018-12-27 Minghao Ruan , Huan Gao , Yongqiang Wang

The rapid advancement of technology has resulted in advanced camera capabilities coming to smaller form factors with improved energy efficiency. These improvements have led to more efficient and capable cameras on mobile devices like mobile…

Computers and Society · Computer Science 2022-05-09 Sreejith Gopinath , Aspen Olmsted

In this work we propose a WiFi colocation methodology for digital contact tracing. The approach works by having a device scan and store nearby access point information to perform proximity inference. We make our approach resilient to…

Computers and Society · Computer Science 2020-10-21 Mikhail Dmitrienko , Abhishek Singh , Patrick Erichsen , Ramesh Raskar

Valuable insights, such as frequently visited environments in the wake of the COVID-19 pandemic, can oftentimes only be gained by analyzing sensitive data spread across edge-devices like smartphones. To facilitate such an analysis, we…

Cryptography and Security · Computer Science 2024-04-15 Johannes Liebenow , Timothy Imort , Yannick Fuchs , Marcel Heisel , Nadja Käding , Jan Rupp , Esfandiar Mohammadi

The popularity of mobile devices and location-based services (LBS) has created great concern regarding the location privacy of their users. Anonymization is a common technique that is often used to protect the location privacy of LBS users.…

Information Theory · Computer Science 2017-01-23 Zarrin Montazeri , Amir Houmansadr , Hossein Pishro-Nik