I’m Jonghu. I love contributing to products using applied machine learning. Contact me on LinkedIn.

Featured Posts

• Two Questions I Had While Exploring Mixedbread Search

• What If I Had Launched ChatGPT Fast Answers?

• LLM-as-a-Judge in Practice

• When Does a Post Go Viral on Hacker News?

• Building a Data Preprocessing Agent

Latest Posts

• Two Questions I Had While Exploring Mixedbread Search 27 Jul 2026

• ChatGPT Fast Answers Part 2: Production Architecture 14 Jul 2026

• ChatGPT Fast Answers Part 1: Business Context and ML System Design 14 Jul 2026

• What If I Had Launched ChatGPT Fast Answers? 14 Jul 2026

• LLM-as-a-Judge in Practice 10 Jul 2026

• Building a Data Preprocessing Agent 25 May 2026

• KaggleBench 25 May 2026

• Data Agent Architecture 25 May 2026

• Hacker News Data Pipeline 24 May 2026

• Causal Analysis of Virality on Hacker News 24 May 2026