no code implementations • 1 Jun 2023 • Iyiola E. Olatunji, Anmar Hizber, Oliver Sihlovec, Megha Khosla
Graph neural networks (GNNs) have shown promising results on real-life datasets and applications, including healthcare, finance, and education.
1 code implementation • 29 Jun 2022 • Iyiola E. Olatunji, Mandeep Rathee, Thorben Funke, Megha Khosla
Based on the different kinds of auxiliary information available to the adversary, we propose several graph reconstruction attacks.
1 code implementation • 18 Sep 2021 • Iyiola E. Olatunji, Thorben Funke, Megha Khosla
With the increasing popularity of graph neural networks (GNNs) in several sensitive applications like healthcare and medicine, concerns have been raised over the privacy aspects of trained GNNs.
no code implementations • 16 Apr 2021 • Jens Rauch, Iyiola E. Olatunji, Megha Khosla
When applying outlier detection in settings where data is sensitive, mechanisms which guarantee the privacy of the underlying data are needed.
1 code implementation • 13 Apr 2021 • Iyiola E. Olatunji, Jens Rauch, Matthias Katzensteiner, Megha Khosla
Mining health data can lead to faster medical decisions, improvement in the quality of treatment, disease prevention, reduced cost, and it drives innovative solutions within the healthcare sector.
1 code implementation • 17 Jan 2021 • Iyiola E. Olatunji, Wolfgang Nejdl, Megha Khosla
While choosing the simplest possible attack model that utilizes the posteriors of the trained model (black-box access), we thoroughly analyze the properties of GNNs and the datasets which dictate the differences in their robustness towards MI attack.
no code implementations • 27 Apr 2020 • Iyiola E. Olatunji, Xin Li, Wai Lam
In this paper, we propose a neural deep learning model that predicts the helpfulness score of a review.
no code implementations • 23 Jan 2018 • Iyiola E. Olatunji
We trained and validated the model using the Vicon physical action dataset and also tested the model on our generated dataset (VMCUHK).