@nishanthan

Nishanthan Karunakaran

@nishanthan

An Software Engineer who loves to build end to end working products

Joined July 2024

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Nishanthan Karunakaran's blogs

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NKNishanthan Karunakarannishanthan.hashnode.devDec 22, 2025 · 4 min read

Activation Functions in Neural Networks — A Practical Mental Model

Introduction Activation functions decide how a neuron responds to an input signal. They introduce non-linearity, enabling neural networks to learn complex patterns. This article focuses on the most commonly used activation functions: Sigmoid Sof...

NKNishanthan Karunakarannishanthan.hashnode.devDec 17, 2025 · 6 min read

Backpropagation in Deep Learning: A Complete, Intuitive, and Practical Guide

Introduction: Why Backpropagation Matters Backpropagation is the learning engine behind modern deep learning. Every time a neural network improves its predictions — from recognizing faces to generating text — the improvement comes from one mechanism:...

NKNishanthan Karunakarannishanthan.hashnode.devDec 1, 2025 · 4 min read

Neural Network — A Simple, Beginner-Friendly Overview

Neural networks are at the heart of modern AI. Whether it’s image recognition, chatbots, or recommendation systems, they all rely on these interconnected structures to learn patterns from data. What is a Neural Network? A neural network is made up o...

NKNishanthan Karunakarannishanthan.hashnode.devOct 17, 2024 · 4 min read

JavaScript Hoisting Explained: How var, let, and const Work

Hoisting in JavaScript Hoisting is a behavior in which variable and function declarations are moved (or "hoisted") to the top of their containing scope (either the global scope or function scope) before the code is executed. This means that you can u...

Nishanthan Karunakaran

About

Available for

Nishanthan Karunakaran's blogs

Recently published

Activation Functions in Neural Networks — A Practical Mental Model

Backpropagation in Deep Learning: A Complete, Intuitive, and Practical Guide

Neural Network — A Simple, Beginner-Friendly Overview

JavaScript Hoisting Explained: How var, let, and const Work

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Nishanthan Karunakaran

About

Available for

Nishanthan Karunakaran's blogs

Recently published

Activation Functions in Neural Networks — A Practical Mental Model

Backpropagation in Deep Learning: A Complete, Intuitive, and Practical Guide

Neural Network — A Simple, Beginner-Friendly Overview

JavaScript Hoisting Explained: How var, let, and const Work