Mmetricshourinmetricshour.hashnode.dev·11h ago · 1 min readBuilding an Open-Source Python Tool to Parse Geographic Revenue from SEC FilingsTo streamline this workflow, I built and open-sourced edgar-geo-revenue, a specialized Python utility designed to automate the extraction of geographic revenue metrics directly from SEC filings. You c00
GKGaurav Kumaringauravbytes.dev·1d ago · 14 min readHow to Evaluate RAG Retrieval: A Practical Guide to Precision, Recall, MRR, MAP, and NDCGYou implemented a search algorithm in your RAG system and it's returning data without any error, and you think that's it, you're done. You're wrong. That mindset works fine for a normal system — an AP41K
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·1d ago · 11 min readDeduplication and Late-Arriving Data HandlingHow we stopped rewriting the entire lake every night and started scoping dedup work to exactly the partitions that changed Domain: Data Engineering Stack: Azure Databricks, Delta Lake (MERGE + Z-Orde00
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·1d ago · 12 min readGlobal Data Residency Platform - Architecture ExplainedCategory: Data Engineering · Data Platform · Data Governance · Cloud Architecture 1. Business Problem A multinational enterprise operates across multiple regions: EU Europe US United States APAC As00
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·1d ago · 13 min readCentralized Enterprise Data Quality FrameworkDifficulty: Expert Category: Data Engineering Architecture Pattern: Metadata Driven Data Quality Platform Target Audience: Principal Data Engineers, Data Engineers, Enterprise Architects Executive S00
SRSailesh Ravichandranindata-engineering-sailesh.hashnode.dev·1d ago · 10 min readAgentic Root Cause Analysis for Lakehouse Pipeline FailuresCategory: Data Engineering · Platform Engineering · AIOps Pattern: AI-Augmented Operations (AIOps), Risk-Gated Automation Cloud: Azure + Databricks Scale: Enterprise (thousands of pipelines/day) 1. 00
YBYashwanth Bharadwajindataaijournal.hashnode.dev·2d ago · 5 min readThe Invisible Enemy of AI: How Data Bias Shapes Every PredictionIntroduction Artificial Intelligence is often praised for making intelligent decisions. From recommending movies and filtering spam to assisting doctors and approving financial applications, AI has 12M
SKShreyash Kadaminoutlierdetectionandtreatment.hashnode.dev·1d ago · 6 min readOutlier Detection and TreatmentEvery dataset has a story to tell — but sometimes a few data points shout louder than they should. These are outliers: values that stray far from the rest of your data. Handled well, they can reveal f00
NANethmi Amashaincuriousdeveloperbyamasha.hashnode.dev·2d ago · 4 min readWhy Do Both Data Preprocessing and Feature Engineering Handle Missing Values?While studying the Machine Learning Pipeline, I came across two stages that confused me: Data Preprocessing Feature Engineering At first, everything seemed clear. Data Preprocessing is responsible00
PKPulkit Kushwahainpulkitkushwaha.hashnode.dev·3d ago · 10 min readWhy Data Engineers Have an Unexpected Advantage in the AI EraWhy Data Engineers Have an Unexpected Advantage in the AI Era As AI models become smarter, a surprising shift is taking place. The bottleneck is moving away from the model itself and toward something 10
