Onur Varol

L2P: Learning to Place for Estimating Heavy-Tailed Distributed Outcomes

2019 · arXiv (Cornell University)

Many real-world prediction tasks have outcome variables that have characteristic heavy-tail distributions. Examples include copies of books sold, auction prices of art pieces, demand for commodities in warehouses, etc. By learning heavy-tailed distributions, "big and …

Unsupervised detection of coordinated fake-follower campaigns on social media

2024 · EPJ Data Science

Abstract Automated social media accounts, known as bots, are increasingly recognized as key tools for manipulative online activities. These activities can stem from coordination among several accounts and these automated campaigns can manipulate social network …