107 citations · 350 across the 12 of their papers we have counts for
12 papers
Analyzing Behavioral Changes of Twitter Users After Exposure to Misinformation
Yichen Wang, Richard Han, Tamara Lehman +2
Social media platforms have been exploited to disseminate misinformation in recent years. The widespread online misinformation has been shown to affect users' beliefs and is connec…
Jump on the Bandwagon? -- Characterizing Bandwagon Phenomenon in Online NBA Fan Communities
Yichen Wang, Jason Shuo Zhang, Xu Han +1
Understanding user dynamics in online communities has become an active research topic and can provide valuable insights for human behavior analysis and community management. In thi…
The Cost of Privacy in Generalized Linear Models: Algorithms and Minimax Lower Bounds
T. Tony Cai, Yichen Wang, Linjun Zhang
We propose differentially private algorithms for parameter estimation in both low-dimensional and high-dimensional sparse generalized linear models (GLMs) by constructing private v…
Hierarchical Temporal Convolutional Networks for Dynamic Recommender Systems
Jiaxuan You, Yichen Wang, Aditya Pal +3
Recommender systems that can learn from cross-session data to dynamically predict the next item a user will choose are crucial for online platforms. However, existing approaches of…
The Cost of Privacy: Rates of Convergence for Parameter Estimation with Differential Privacy
T. Tony Cai, Yichen Wang, Linjun Zhang
We study the minimax cost of -differential privacy for mean estimation and Gaussian linear regression in low and high dimensions. For low-dimensional mean estimati…
Learning to Optimize via Wasserstein Deep Inverse Optimal Control
Yichen Wang, Le Song, Hongyuan Zha
We study the inverse optimal control problem in social sciences: we aim at learning a user's true cost function from the observed temporal behavior. In contrast to traditional phen…