ASAbdullah Syedaliinadvancedrag.hashnode.dev·Jun 9 · 7 min readSpark Architecture Explained Through a Simple PySpark JobAs Data Engineers, we often write Spark code and trust the framework to execute it efficiently. However, understanding what happens behind the scenes is what separates a developer who can write Spark 00
ASAbdullah Syedaliinragbuilder.hashnode.dev·Nov 29, 2025 · 9 min readBuilding My First RAG Application: Earnings Call Intelligence SystemEver heard how analysts spend countless hours analyzing stock market trends to choose the right investments? Stock market analysts dedicate their valuable time to poring over quarterly earnings call transcripts—sometimes spending hours just to find t...00
ASAbdullah Syedaliinragbuilder.hashnode.dev·Nov 26, 2025 · 6 min readWhy Your RAG System Returns Irrelevant Results (And How to Fix It)Introduction You've built your RAG system. It's supposed to retrieve the right information and generate accurate answers. But instead, it's pulling up random documents that have nothing to do with the question. Sound familiar? This is one of the most...00
ASAbdullah Syedaliinragbuilder.hashnode.dev·Nov 25, 2025 · 7 min readCost Optimization in RAG: Cut Your AI Bills Without Sacrificing QualityWhy Cost Optimization Matters in RAG You've built a RAG system that works. Your chatbot retrieves relevant documents and generates accurate answers. Everything's great—until you see the monthly bill. A single RAG query can cost $0.01 to $0.10 dependi...00
ASAbdullah Syedaliinragbuilder.hashnode.dev·Nov 24, 2025 · 9 min readMonitoring & Evaluation in RAG: Measuring What MattersWhen you're building RAG (Retrieval-Augmented Generation) systems, you can't just hope they work well—you need to measure how well they're performing. Think of it like a health checkup for your AI system. In this post, we'll explore the two critical ...00
