This month, OpenAI announced their Codex app and my coworkers were asking questions. So I downloaded it, and as a test case for the GPT-5.2-Codex (high) model, I asked it to reimplement the UMAP algorithm in Rust. UMAP is a dimensionality reduction technique that can take in a high-dimensional matrix of data and simultaneously cluster and visualize data in lower dimensions. However, it is a very computationally-intensive algorithm and the only tool that can do it quickly is NVIDIA’s cuML which requires CUDA dependency hell. If I can create a UMAP package in Rust that’s superfast with minimal dependencies, that is an massive productivity gain for the type of work I do and can enable fun applications if fast enough.
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The recent surge of more than 2,000 immigration officers to the state inspired nationwide protests after two US citizens were killed by federal agents last month.
黎已還押逾5年，其餘8人則還押逾4年。今次是香港首宗「勾結罪」案件判刑，案件於2023年12月開審，審訊歷時156日，由三名國安法指定法官審理。