no code implementations • 24 Aug 2024 • Sina Shaham, Gabriel Ghinita, Bhaskar Krishnamachari, Cyrus Shahabi
We introduce {\em STPT (Spatio-Temporal Private Timeseries)}, a novel method for DP-compliant publication of electricity consumption data that analyzes spatio-temporal attributes and captures both micro and macro patterns by leveraging RNNs.
no code implementations • 28 Jul 2023 • Sina Shaham, Arash Hajisafi, Minh K Quan, Dinh C Nguyen, Bhaskar Krishnamachari, Charith Peris, Gabriel Ghinita, Cyrus Shahabi, Pubudu N. Pathirana
Privacy and fairness are two crucial pillars of responsible Artificial Intelligence (AI) and trustworthy Machine Learning (ML).
no code implementations • 28 Jun 2023 • Arash Hajisafi, Haowen Lin, Sina Shaham, Haoji Hu, Maria Despoina Siampou, Yao-Yi Chiang, Cyrus Shahabi
Forecasting the number of visits to Points-of-Interest (POI) in an urban area is critical for planning and decision-making for various application domains, from urban planning and transportation management to public health and social studies.
no code implementations • 5 Feb 2023 • Sina Shaham, Gabriel Ghinita, Cyrus Shahabi
We propose techniques to mitigate location bias in machine learning.
no code implementations • 4 Apr 2022 • Sina Shaham, Gabriel Ghinita, Cyrus Shahabi
We introduce the concept of spatial data fairness to address the specific challenges of location data and spatial queries.
no code implementations • 25 Mar 2022 • Sara Abdali, Sina Shaham, Bhaskar Krishnamachari
As social media platforms are evolving from text-based forums into multi-modal environments, the nature of misinformation in social media is also transforming accordingly.
no code implementations • 24 Nov 2020 • Bo Liu, Ming Ding, Sina Shaham, Wenny Rahayu, Farhad Farokhi, Zihuai Lin
The newly emerged machine learning (e. g. deep learning) methods have become a strong driving force to revolutionize a wide range of industries, such as smart healthcare, financial technology, and surveillance systems.
no code implementations • 24 Feb 2019 • Sina Shaham, Ming Ding, Bo Liu, Shuping Dang, Zihuai Lin, Jun Li
By introducing a new formulation of the problem, we are able to apply machine learning algorithms for clustering the trajectories and propose to use $k$-means algorithm for this purpose.
no code implementations • 16 May 2018 • Sina Shaham, Ming Ding, Bo Liu, Zihuai Lin, Jun Li
In this paper, we incorporate a new type of side information based on consecutive location changes of users and propose a new metric called transition-entropy to investigate the location privacy preservation, followed by two algorithms to improve the transition-entropy for a given dummy generation algorithm.