Dense Slides: LLM Observability, Evaluation, Experimentation Platform — Dat Ngo, Arize
Source Video
LLM Observability, Evaluation, Experimentation Platform — Dat Ngo, Arize
Method
This deck is slide-only. The existing captured video frame set supplies candidate frames, then local OpenCV rejects sponsor/title/speaker-only frames, crops visible slide surfaces, deduplicates, and saves the cropped slide images.
Cropped Visible Slides

- Recreated text/layout view: open HTML recreation
- AI slide classifier:
content_slideconfidence0.98 - Text source: advanced OCR
rapidocr-live/bright-screen/contrastreconciled by agent. - OCR decision: ready — Diagram slide with multiple boxed text regions and smaller body copy that is better suited for OCR than manual transcription.
Slide text:
Observability
What is happening in my application? Can I root cause down into the problem?
Evaluation
How well is the AI product that I've built, actually performing according my criteria?
Experimentation & Improvement
The ultimate goal of observability and evaluation is to know where to iterate
and know where to improve the system
Classification audit: raw/sources/slide-ai-classification/dense/JsCCrBF7F1g/audit.json