3D Brain Tumour Segmentation Five deep learning architectures trained on 3D brain MRI scans, from a CNN baseline to a Transformer. A 2.4M-parameter model matched a 62M-parameter one. Everything built and benchmarked from scratch on a consumer GPU. OLIST E-Commerce SQL Analysis SQL analytics on 100k real Brazilian e-commerce orders, then the PostgreSQL-specific techniques behind them. Two notebooks, PostgreSQL 15.
