4 papers
Learning to Lead: Incentivizing Strategic Agents in the Dark
Yuchen Wu, Xinyi Zhong, Zhuoran Yang
We study an online learning version of the generalized principal-agent model, where a principal interacts repeatedly with a strategic agent possessing private types, private reward…
Beyond Likes: How Normative Feedback Complements Engagement Signals on Social Media
Yuchen Wu, Mingduo Zhao, John Canny
Many online platforms incorporate engagement signals, such as likes, into their interface design to boost engagement. However, these signals can unintentionally elevate content tha…
Failures and Successes of Cross-Validation for Early-Stopped Gradient Descent
Pratik Patil, Yuchen Wu, Ryan J. Tibshirani
We analyze the statistical properties of generalized cross-validation (GCV) and leave-one-out cross-validation (LOOCV) applied to early-stopped gradient descent (GD) in high-dimens…
Sharp Analysis of Power Iteration for Tensor PCA
Yuchen Wu, Kangjie Zhou
We investigate the power iteration algorithm for the tensor PCA model introduced in Richard and Montanari (2014). Previous work studying the properties of tensor power iteration is…