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📰 Dev.to · jacobjerryarackal

5 articles · Updated every 3 hours · View all reads

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PCA (Principal Component Analysis): Finding the Hidden Structure in High‑Dimensional Data
Dev.to · jacobjerryarackal 1mo ago
PCA (Principal Component Analysis): Finding the Hidden Structure in High‑Dimensional Data
1. The Problem It Solves Imagine you have a dataset with 100 features, for example, pixel...
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XGBoost: When Gradient Boosting Meets Regularization
Dev.to · jacobjerryarackal 1mo ago
XGBoost: When Gradient Boosting Meets Regularization
1. The Problem It Solves Imagine you’re a loan officer at a bank. You have thousands of...
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Why “Just Prompting” Fails on Private Data: A RAG Post‑Mortem
Dev.to · jacobjerryarackal 1mo ago
Why “Just Prompting” Fails on Private Data: A RAG Post‑Mortem
The Problem You have a 400‑page internal handbook includes compliance rules, HR policies,...
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I Built a RAG Pipeline. Then I Realized Retrieval Is the Real Model
Dev.to · jacobjerryarackal 2mo ago
I Built a RAG Pipeline. Then I Realized Retrieval Is the Real Model
Everyone talks about the LLM. GPT‑4, Claude, Gemini – that’s the celebrity. But after building my...
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“Prompt Engineering Is Enough” Is Wrong – Here’s What I Had to Add
Dev.to · jacobjerryarackal 🧠 Large Language Models ⚡ AI Lesson 3mo ago
“Prompt Engineering Is Enough” Is Wrong – Here’s What I Had to Add
I used to believe the hype. I thought if I just wrote better prompts clearer instructions, few‑shot...
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