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📰 Dev.to · Brittany

6 articles · Updated every 3 hours · View all reads

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# How to Build a Beginner-Friendly HR RAG Chatbot with Amazon Bedrock

Dev.to · Brittany 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago

# How to Build a Beginner-Friendly HR RAG Chatbot with Amazon Bedrock

Learn how Retrieval-Augmented Generation (RAG) works on AWS using Amazon Bedrock, Knowledge Bases,...

Your ML Model Isn’t Wrong. Your SQL Probably Is.

Dev.to · Brittany 📐 ML Fundamentals ⚡ AI Lesson 4mo ago

Your ML Model Isn’t Wrong. Your SQL Probably Is.

Your churn model isn’t degrading because the algorithm is weak. It might be degrading because of a...

Machine Learning Starts With a WHERE Clause

Dev.to · Brittany 📐 ML Fundamentals ⚡ AI Lesson 4mo ago

Machine Learning Starts With a WHERE Clause

🧠 Intro (Systems-Level Tone) Most people think machine learning starts with a model. It...

Missing Data Isn’t a Cleanup Problem — It’s a Signal

Dev.to · Brittany 📐 ML Fundamentals ⚡ AI Lesson 4mo ago

Missing Data Isn’t a Cleanup Problem — It’s a Signal

Most machine learning courses teach you how to handle missing data. Fill it. Drop it. Impute...

Missing Data in Machine Learning: A Practical Step-by-Step Approach

Dev.to · Brittany 📐 ML Fundamentals ⚡ AI Lesson 5mo ago

Missing Data in Machine Learning: A Practical Step-by-Step Approach

Missing data breaks more machine learning models than bad algorithms — not because it’s hard to...

Why Categorical Data Can Quietly Break Your ML Model

Dev.to · Brittany ⚡ Algorithms & Data Structures 5mo ago

Why Categorical Data Can Quietly Break Your ML Model

Your model didn’t fail because of the algorithm. It failed because of how your data was...