William Jesus Guardado

Synthetic SME lending dataset · end‑to‑end pipeline with Logistic Regression, Random Forest, and XGBoost.

Robust baseline comparisons across LR, RF, and XGB with ROC/PR, calibration, and lift.

ARIMA and ML forecasting with walk‑forward validation and error analysis.

Satellite–gauge validation (CMORPH/GMAP/TRMM), bias‑correction, and spatial extremes mapping over Australia.

Feature & model selection at scale using evolutionary strategies (R).

PHP libraries + OpenAI + cron + MySQL FULLTEXT to index emails/uploads and power an internal RAG bot.

Operations research problems with integer constraints and heuristics.