no code implementations • 2 Jun 2024 • Jingjing Zheng, Xin Yuan, Kai Li, Wei Ni, Eduardo Tovar, Jon Crowcroft
The autoencoder is designed to process the LayerCAM heat maps from the local model updates, improving their distinctiveness and thereby increasing the accuracy in spotting anomalous maps and malicious local models.
no code implementations • 23 May 2024 • Oliver Linton, Raghavendra Rau, Patrick Baert, Peter Bossaerts, Jon Crowcroft, G. R. Evans, Paul Ewart, Nick Gay, Paul Kattuman, Stefan Scholtes, Hamid Sabourian, Richard J. Smith
This paper critically evaluates the HESA (Higher Education Statistics Agency) Data Report for the Employer Justified Retirement Age (EJRA) Review Group at the University of Cambridge (Cambridge 2024), identifying significant methodological flaws and misinterpretations.
no code implementations • 3 Nov 2023 • Stefan Kambiz Behfar, Jon Crowcroft
This study addresses the security challenges associated with the current internet transformations, specifically focusing on emerging technologies such as blockchain and decentralized storage.
no code implementations • 2 Nov 2023 • Stefan Kambiz Behfar, Jon Crowcroft
We construct a transaction graph representation using adjacency matrices to capture the node embeddings; while our major contribution is to develop a combined Graph Attention Network (GAT) and Reinforcement Learning (RL) model to optimize the network efficiency and scalability.
no code implementations • 29 Sep 2023 • Stefan Kambiz Behfar, Jon Crowcroft
The rapid evolution of the Ethereum network necessitates sophisticated techniques to ensure its robustness against potential threats and to maintain transparency.
1 code implementation • 4 Jul 2022 • Pranvera Kortoçi, Yilei Liang, Pengyuan Zhou, Lik-Hang Lee, Abbas Mehrabi, Pan Hui, Sasu Tarkoma, Jon Crowcroft
Mobile devices and the immense amount and variety of data they generate are key enablers of machine learning (ML)-based applications.
no code implementations • 27 Sep 2020 • James Bell, Ginestra Bianconi, David Butler, Jon Crowcroft, Paul C. W Davies, Chris Hicks, Hyunju Kim, Istvan Z. Kiss, Francesco Di Lauro, Carsten Maple, Ayan Paul, Mikhail Prokopenko, Philip Tee, Sara I. Walker
On May $28^{th}$ and $29^{th}$, a two day workshop was held virtually, facilitated by the Beyond Center at ASU and Moogsoft Inc.
Physics and Society
1 code implementation • 25 Jun 2020 • David Butler, Chris Hicks, James Bell, Carsten Maple, Jon Crowcroft
Our experimental results show that for groups of size 500 or more, the error associated with our method can be as low as 0. 03 on average and thus the aggregated results can be useful in a number of identity-free contexts.
Cryptography and Security Computers and Society
no code implementations • 26 Mar 2020 • Dianlei Xu, Tong Li, Yong Li, Xiang Su, Sasu Tarkoma, Tao Jiang, Jon Crowcroft, Pan Hui
Edge intelligence refers to a set of connected systems and devices for data collection, caching, processing, and analysis in locations close to where data is captured based on artificial intelligence.
1 code implementation • NeurIPS 2020 • Andreas Grammenos, Rodrigo Mendoza-Smith, Jon Crowcroft, Cecilia Mascolo
We present a federated, asynchronous, and $(\varepsilon, \delta)$-differentially private algorithm for PCA in the memory-limited setting.
no code implementations • 25 Oct 2017 • Jianxin Zhao, Richard Mortier, Jon Crowcroft, Liang Wang
Machine Learning (ML) techniques, such as Neural Network, are widely used in today's applications.
no code implementations • 20 Jan 2015 • Hamed Haddadi, Heidi Howard, Amir Chaudhry, Jon Crowcroft, Anil Madhavapeddy, Richard Mortier
We propose there is a need for a technical platform enabling people to engage with the collection, management and consumption of personal data; and that this platform should itself be personal, under the direct control of the individual whose data it holds.
Computers and Society
no code implementations • 26 Sep 2014 • Jisun An, Daniele Quercia, Jon Crowcroft
Nowadays, they have an additional option: that of crowdfunding.