Projects

Star Schema Benchmark for Apache SystemDS

Co-developed the initial Star Schema Benchmark implementation for SystemDS with a project partner, contributing query scripts in the relational-algebra DML, the automated performance-run harnesses and the documentation. The 16-file integration commit landed on apache/systemds main. It grew out of the Large-scale Data Engineering project with the Big Data Engineering (DAMS) group at TU Berlin.apache/systemds commit 20a7b674

This site

Portfolio and trilingual blog (English, German, Arabic, with right-to-left layout for Arabic). Next.js App Router, statically prerendered on Vercel, with a serverless view counter and comments backed by GitHub Discussions.github.com/ghafek/ghafek-portfolio