Chen Gao: Notes & Research https://chennoshen239.github.io/ New posts, notes, and working papers by Chen Gao. en Sun, 02 Aug 2026 19:43:16 +0800 Research Computing on AWS https://chennoshen239.github.io/aws-compute-notes/ tag:chennoshen239.github.io,2026-08-02:research-computing-on-aws Sun, 02 Aug 2026 14:29:45 +0800 Post A short field note on ParallelCluster and Slurm: the setup, the traps, and the cost. Reinforcement Learning https://chennoshen239.github.io/reinforcement-learning-notes/ tag:chennoshen239.github.io,2026-07-25:reinforcement-learning Sat, 25 Jul 2026 13:48:07 +0800 Note Monte Carlo and stochastic approximation, temporal difference learning, and policy gradient methods, for economists. Numerical Analysis https://chennoshen239.github.io/numerical-analysis-notes/ tag:chennoshen239.github.io,2026-07-17:numerical-analysis Fri, 17 Jul 2026 14:40:17 -0400 Note Interpolation, quadrature, ODE solvers, and numerical linear algebra from the two-semester Berkeley sequence Math 128A/128B. Forecasting Inflation with Microdata: An Adaptive Machine Learning Approach https://chennoshen239.github.io/research.html#forecasting-inflation-with-microdata tag:chennoshen239.github.io,2026-07-14:forecasting-inflation-with-microdata Tue, 14 Jul 2026 00:40:23 +0800 Working paper An adaptive forecasting pipeline that tests when price-change microdata add predictive value and uses them only when they perform well.