Alex Zhao

Hi, I'm Alex. I'm a student at Harvard Law School, currently thinking about algorithms and the First Amendment. I previously helped build climate tech at Watershed, researched recommender systems, and worked as a data journalist.

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In this work we investigate the extent to which offline metrics predict online performance by evaluating eleven recommenders across six controlled simulated environments. We provide the environments and recommenders described in this paper as Reclab: an extensible ready-to-use simulation framework at RecLab.

We propose a novel group testing strategy which requires only local information about the underlying transmission network.

The Biden administration is racing to rebuild senior agency roles depleted by the previous president, hiring at the fastest rate in decades, a POLITICO analysis found.