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Contact tracing requires a strong understanding of the context of a user, and location with other sensory data could provide a context for any infection encounter. Although Bluetooth technology gives a good insight into the proximity aspect…

Cryptography and Security · Computer Science 2020-07-28 Ramesh Raskar , Abhishek Singh , Sam Zimmerman , Shrikant Kanaparti

Networked system often relies on distributed algorithms to achieve a global computation goal with iterative local information exchanges between neighbor nodes. To preserve data privacy, a node may add a random noise to its original data for…

Information Theory · Computer Science 2017-03-21 Jianping He , Lin Cai , Xinping Guan

The recent SARS-CoV-2 pandemic gave rise to management approaches using mobile apps for contact tracing. The corresponding apps track individuals and their interactions, to facilitate alerting users of potential infections well before they…

Cryptography and Security · Computer Science 2020-04-17 Christiane Kuhn , Martin Beck , Thorsten Strufe

OpenData movement around the globe is demanding more access to information which lies locked in public or private servers. As recently reported by a McKinsey publication, this data has significant economic value, yet its release has…

Databases · Computer Science 2012-05-15 David Leoni

The global health threat from COVID-19 has been controlled in a number of instances by large-scale testing and contact tracing efforts. We created this document to suggest three functionalities on how we might best harness computing…

Contact tracing in the COVID-19 pandemic is key to prevent the further spread of COVID-19. Countries and regions around the world have developed and deployed or are considering adopting contact-tracing software or mobile apps. While contact…

Cryptography and Security · Computer Science 2020-06-30 Dong Wang , Fang Liu

The outbreak of coronavirus disease 2019 (covid-19) is imposing a severe worldwide lock-down. Contact tracing based on smartphones' applications (apps) has emerged as a possible solution to trace contagions and enforce a more sustainable…

Cryptography and Security · Computer Science 2021-06-08 Davide Andreoletti , Omran Ayoub , Silvia Giordano , Massimo Tornatore , Giacomo Verticale

The leakage of data might have been an extreme effect on the personal level if it contains sensitive information. Common prevention methods like encryption-decryption, endpoint protection, intrusion detection system are prone to leakage.…

Cryptography and Security · Computer Science 2020-06-12 Poushali Sengupta , Sudipta Paul , Subhankar Mishra

In many practical applications of differential privacy, practitioners seek to provide the best privacy guarantees subject to a target level of accuracy. A recent line of work by Ligett et al. '17 and Whitehouse et al. '22 has developed such…

Cryptography and Security · Computer Science 2023-12-07 Ryan Rogers , Gennady Samorodnitsky , Zhiwei Steven Wu , Aaditya Ramdas

The wide adoption of wearable smart devices with onboard cameras greatly increases people's concern on privacy infringement. Here we explore the possibility of easing persons from photos captured by smart devices according to their privacy…

Cryptography and Security · Computer Science 2014-10-27 Lan Zhang , Kebin Liu , Xiang-Yang Li , Puchun Feng , Cihang Liu , Yunhao Liu

As large eye-tracking datasets are created, data privacy is a pressing concern for the eye-tracking community. De-identifying data does not guarantee privacy because multiple datasets can be linked for inferences. A common belief is that…

Cryptography and Security · Computer Science 2019-04-16 Ao Liu , Lirong Xia , Andrew Duchowski , Reynold Bailey , Kenneth Holmqvist , Eakta Jain

Digital contact tracing is being used by many countries to help contain COVID-19's spread in a post-lockdown world. Among the various available techniques, decentralized contact tracing that uses Bluetooth received signal strength…

Computers and Society · Computer Science 2021-11-08 Hsu-Chun Hsiao , Chun-Ying Huang , Shin-Ming Cheng , Bing-Kai Hong , Hsin-Yuan Hu , Chia-Chien Wu , Jian-Sin Lee , Shih-Hong Wang , Wei Jeng

We provide a rough sketch of a simple system design for exposure notification of COVID-19 infections based on copresence at cluster events -- locations and times where a threshold number of tested-positive (TP) individuals were present.…

Cryptography and Security · Computer Science 2022-01-04 Paul Syverson

The COVID-19 pandemic is imposing enormous global challenges in managing the spread of the virus. A key pillar to mitigation is contact tracing, which complements testing and isolation. Digital apps for contact tracing using Bluetooth…

Successful containment of the Coronavirus pandemic rests on the ability to quickly and reliably identify those who have been in close proximity to a contagious individual. Existing tools for doing so rely on the collection of exact location…

Computers and Society · Computer Science 2020-04-07 Ran Canetti , Ari Trachtenberg , Mayank Varia

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

In limiting the rapid spread of highly infectious diseases like Covid-19 means to immediately identify individuals who had been in contact with a newly diagnosed infected person have proven to be important. Such potential victims can go…

Social and Information Networks · Computer Science 2020-04-01 Adam Wolisz

Smartphone location-based methods have been proposed and implemented as an effective alternative to traditional labor intensive contact tracing methods. However, there are serious privacy and security concerns that may impede wide-spread…

Computers and Society · Computer Science 2020-06-16 Ssu-Hsin Yu

The coronavirus pandemic is a new reality and it severely affects the modus vivendi of the international community. In this context, governments are rushing to devise or embrace novel surveillance mechanisms and monitoring systems to fight…

Cryptography and Security · Computer Science 2020-09-18 Tania Martin , Georgios Karopoulos , José L. Hernández-Ramos , Georgios Kambourakis , Igor Nai Fovino

Large-scale COVID-19 infections have occurred worldwide, which has caused tremendous impact on the economy and people's lives. The traditional method for tracing contagious virus, for example, determining the infection chain according to…

Cryptography and Security · Computer Science 2020-08-31 Meng Shen , Yaqian Wei , Tong Li