---
title: "Discussion on \"Why Your PCA Pipeline Works in Notebooks But Fails in Production\" | Hashnode"
description: "Discussion on \"Why Your PCA Pipeline Works in Notebooks But Fails in Production\". Learn why PCA works in testing but fails in production. Complete debugging checklist + e-commerce dataset example showing variance preservation failur"
url: "https://hashnode.com/posts/how-one-scaling-bug-silently-broke-my-entire-recommendation-engine/69dbc33faadf1107e2ff5f01"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [Why Your PCA Pipeline Works in Notebooks But Fails in Production](https://mathisimple.hashnode.dev/how-one-scaling-bug-silently-broke-my-entire-recommendation-engine?utm_source=hashnode&utm_medium=feed)

Learn why PCA works in testing but fails in production. Complete debugging checklist + e-commerce dataset example showing variance preservation failur

Apr 12 · 8 min read · mathisimple.hashnode.dev  
Read the article

-   [#machinelearning](https://hashnode.com/tag/machinelearning)

## Written by

[hqqqqy](https://hashnode.com/@mathisimple)

@mathisimple

  
[View profile](https://hashnode.com/@mathisimple)

## Responses

Markdown supported · ⌘↵ to post

No responses yet.