Projects on Ruize Jin | Data Scientist & AI Engineerhttps://www.ruizejin.com/projects/Recent content in Projects on Ruize Jin | Data Scientist & AI EngineerHugoenMon, 01 Sep 2025 00:00:00 -0400Interpretable Multi-Task Insurance PricingMon, 01 Sep 2025 00:00:00 -0400<p>Built an interpretable PyTorch multi-task neural additive model using shared feature subnetworks to jointly predict claim frequency and severity on freMTPL data. Evaluated the model with six-fold cross-validation against GLM, GBM, and single-task NAM benchmarks.</p>NYC Taxi Mobility IntelligenceSat, 01 Mar 2025 00:00:00 -0500<p>An interactive pre-trip prediction system for NYC Yellow Taxi rides. Given a pickup location, destination, and departure time, the system estimates travel time and pre-tip trip cost using a leakage-safe, temporally validated machine-learning pipeline.</p>