Mark Chen

Mark Chen

Machine Learning Engineer at Kolena

Mark Chen is a machine learning engineer at Kolena, which creates AAI-powered workflow automations for companies in real estate, insurance, banking and investment management.

Articles by Mark

4 articles

How to Perform Hallucination Detection for LLMs
Technical

How to Perform Hallucination Detection for LLMs

Learn five different methods to detect LLM hallucinations with 90% accuracy for closed-domain question answering.

The Five Pillars of Trustworthy LLM Testing
Technical

The Five Pillars of Trustworthy LLM Testing

From the perspective of a machine learning engineer at Kolena, this article is a continuation in a series of discussions highlighting a testing...

Quantifying GPT-4’s Hidden Regressions Over Time (Series Part 3)
Technical

Quantifying GPT-4’s Hidden Regressions Over Time (Series Part 3)

Kolena's analysis reveals GPT-4's performance regressions in conversational question answering across various data sources, highlighting continuous...

How Well Do GPT Models Follow Prompts? (Series Part 2)
Technical

How Well Do GPT Models Follow Prompts? (Series Part 2)

Explore how different prompt designs impact GPT-3.5 Turbo's performance in text summarization. Learn which prompts yield the most accurate outputs...