76 citations · 88 across the 19 of their papers we have counts for
7 papers · 1 filter
Privacy-Aware Recommendation with Private-Attribute Protection using Adversarial Learning
Ghazaleh Beigi, Ahmadreza Mosallanezhad, Ruocheng Guo +3
Recommendation is one of the critical applications that helps users find information relevant to their interests. However, a malicious attacker can infer users' private information…
An End-to-End Framework to Identify Pathogenic Social Media Accounts on Twitter
Elham Shaabani, Ashkan Sadeghi-Mobarakeh, Hamidreza Alvari +1
Pathogenic Social Media (PSM) accounts such as terrorist supporter accounts and fake news writers have the capability of spreading disinformation to viral proportions. Early detect…
Understanding Information Flow in Cascades Using Network Motifs
Soumajyoti Sarkar, Hamidreza Alvari, Paulo Shakarian
A growing set of applications consider the process of network formation by using subgraphs as a tool for generating the network topology. One of the pressing research challenges is…
Less is More: Semi-Supervised Causal Inference for Detecting Pathogenic Users in Social Media
Hamidreza Alvari, Elham Shaabani, Soumajyoti Sarkar +2
Recent years have witnessed a surge of manipulation of public opinion and political events by malicious social media actors. These users are referred to as "Pathogenic Social Media…
Hawkes Process for Understanding the Influence of Pathogenic Social Media Accounts
Hamidreza Alvari, Paulo Shakarian
Over the past years, political events and public opinion on the Web have been allegedly manipulated by accounts dedicated to spreading disinformation and performing malicious activ…
Detection of Violent Extremists in Social Media
Hamidreza Alvari, Soumajyoti Sarkar, Paulo Shakarian
The ease of use of the Internet has enabled violent extremists such as the Islamic State of Iraq and Syria (ISIS) to easily reach large audience, build personal relationships and i…