systemdesignbykrishna.hashnode.devThe Thundering Herd Problem 1. Decoding the Jargons This issue occurs when a large number of processes, threads, or clients are simultaneously awakened or triggered in response to a single event or the availability of a shared r1d ago·9 min read
datasciencebykrishna.hashnode.devBuilding a Bagging Model: A Complete Guide from Data to Predictions1.Getting Over with the Jargons: There are two technical terms in the title — Bagging and Pipeline.Before we dive into the details, let’s quickly understand what each means.(so that the article can also be called “Beginner Friendly”). Feel free to sk...Aug 15, 2025·7 min read
krishnadevs.hashnode.devHow I Built a Clean REST API in Express.js — Like Running a Desi User Registry Office1. Introduction: What is a REST API? The Analogy Imagine a local government office in India — like the Nagar Nigam. People visit for various services: register themselves, update records, request info, or delete their entries. REST APIs work in a ...Aug 7, 2025·10 min read
krishnadevs.hashnode.devUnveiling the Internet: How Your Click Transforms into a Webpage1. Introduction: A Click That Connects the World What really happens when you click a link or enter a URL in your browser? To most of us, the result—a webpage loading in seconds—feels almost magical. But behind this simplicity lies a complex journey ...Aug 3, 2025·9 min read
datasciencebykrishna.hashnode.devROC and AUC Fundamentals: A Simple Guide for Beginners1. Short Introduction on ROC Curve In the world of machine learning, especially in binary classification tasks, it's important not just to know how accurate a model is, but how well it distinguishes between classes — like spam vs. not spam, or fraud ...Jul 31, 2025·7 min read
