Devanshu Biswas - DEV Community

Devanshu Biswas

Jun 20

AI Agents Explained: the Thought-Action-Observation Loop

#ai #llm #beginners #machinelearning

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1 min read

Devanshu Biswas

Jun 20

Fine-tuning vs RAG: Two Ways to Teach an LLM

#ai #rag #llm #beginners

1 min read

Devanshu Biswas

Jun 20

Temperature and Sampling: the LLM Creativity Dial

#ai #llm #beginners #machinelearning

1 min read

Devanshu Biswas

Jun 20

The Context Window: an LLM's Short-Term Memory, Explained

#ai #llm #beginners #machinelearning

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1 min read

Devanshu Biswas

Jun 20

Why LLMs Hallucinate, and How to Reduce It

#ai #llm #machinelearning #beginners

1

2 min read

Devanshu Biswas

Jun 20

LSTM and GRU: the Gates That Let a Network Remember

#machinelearning #deeplearning #ai #beginners

1 min read

Devanshu Biswas

Jun 20

RNNs From Scratch: a Network With a Memory of the Past

#machinelearning #deeplearning #ai #beginners

1 min read

Devanshu Biswas

Jun 20

Pooling in CNNs: Shrink the Map, Keep What Matters

#machinelearning #deeplearning #ai #beginners

1 min read

Devanshu Biswas

Jun 20

CNNs From Scratch: the Convolution That Sees Images

#machinelearning #deeplearning #ai #beginners

1 min read

Devanshu Biswas

Jun 20

Optimizers Explained: SGD vs Momentum vs Adam, Visualized

#machinelearning #deeplearning #ai #beginners

1 min read

Devanshu Biswas

Jun 20

Random Forest From Scratch: Many Weak Trees Beat One Strong Tree

#machinelearning #ai #javascript #beginners

1 min read

Devanshu Biswas

Jun 20

Feature Scaling: Why One Big Number Drowns Your Model

#machinelearning #ai #beginners #datascience

1 min read

Devanshu Biswas

Jun 20

Why Accuracy Lies: Precision, Recall and F1 From Scratch

#machinelearning #ai #beginners #datascience

1 min read

Devanshu Biswas

Jun 20

Overfitting Made Visible: Train/Test and the U-Shaped Error Curve

#machinelearning #ai #beginners #datascience

1 min read

Devanshu Biswas

Jun 20

Gradient Descent From Scratch: the Engine Under All of ML

#machinelearning #ai #javascript #beginners

1 min read

Devanshu Biswas

Jun 20

I Built a Live Markdown Editor With No Library (~40 Lines)

#javascript #webdev #beginners #html

1 min read

Devanshu Biswas

Jun 20

I Built a QR Code Generator That Runs 100% in the Browser

#javascript #webdev #beginners #html

1 min read

Devanshu Biswas

Jun 20

Self-RAG: Let the Model Decide When to Retrieve, Then Grade Itself

#ai #rag #llm #beginners

1 min read

Devanshu Biswas

Jun 20

I Built a Toast Notification System in ~40 Lines (Stack, Auto-Dismiss, Variants)

#javascript #webdev #css #beginners

1 min read

Devanshu Biswas

Jun 20

I Built Pac-Man in ~150 Lines of Vanilla JavaScript

#javascript #gamedev #beginners #webdev

1

1 min read

Devanshu Biswas

Jun 20

I'm Building a Production-Grade Spring Boot + React App, One Feature a Day (Day 1)

#springboot #java #react #webdev

1

2 min read

Devanshu Biswas

Jun 17

What an LLM Actually Does: Predicting the Next Word, Explained

#ai #machinelearning #beginners #llm

2 min read

Devanshu Biswas

Jun 17

Loss Functions: MSE vs MAE vs Cross-Entropy, Visualized

#machinelearning #ai #deeplearning #beginners

1

2 min read

Devanshu Biswas

Jun 17

Naive Bayes From Scratch: A Spam Filter Built From Word Counts

#machinelearning #javascript #ai #beginners

1

2 min read

Devanshu Biswas

Jun 17

I Built an Image Compressor That Runs 100% in the Browser

#javascript #webdev #beginners #html

1

2 min read

Devanshu Biswas

Jun 17

RAG-Fusion: Ask the Question Many Ways, Then Fuse the Ranks (RRF)

#ai #rag #llm #beginners

2 min read

Devanshu Biswas

Jun 17

I Rebuilt the Cmd-K Command Palette in ~60 Lines of JavaScript

#javascript #webdev #css #beginners

2 min read

Devanshu Biswas

Jun 17

I Built Asteroids in ~120 Lines of Vanilla JavaScript

#javascript #gamedev #beginners #webdev

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1

2 min read

Devanshu Biswas

Jun 17

WebGPU: I Simulated 250,000 Particles Entirely on the GPU (in the Browser)

#webgpu #javascript #webdev #graphics

2 min read

Devanshu Biswas

Jun 16

How a Neural Network Actually Learns — Training, in Plain Words

#ai #machinelearning #beginners #datascience

1

2 min read

Devanshu Biswas

Jun 16

The XOR Problem: Why Neural Nets Needed Hidden Layers

#machinelearning #ai #deeplearning #beginners

2 min read

Devanshu Biswas

Jun 16

Decision Trees From Scratch: Yes/No Questions That Carve Up Data

#machinelearning #javascript #ai #beginners

2 min read

Devanshu Biswas

Jun 16

I Built Live Captions in the Browser — No API Key, No Server

#javascript #webdev #ai #beginners

2 min read

Devanshu Biswas

Jun 16

HyDE: The RAG Trick Where You Answer the Question BEFORE You Search

#ai #rag #llm #beginners

1

2 min read

Devanshu Biswas

Jun 16

I Rebuilt Notion's Slash Menu (/) in ~70 Lines of JavaScript

#javascript #webdev #css #beginners

1

2 min read

Devanshu Biswas

Jun 16

I Built Space Invaders in ~120 Lines of Vanilla JavaScript

#javascript #gamedev #beginners #webdev

1

2 min read

Devanshu Biswas

Jun 16

I Built a Real Weather App With React Native — Same React, Now on Your Phone

#reactnative #react #mobile #beginners

1

2 min read

Devanshu Biswas

Jun 15

I Built a Webcam Sign-Language Reader in the Browser (No Cloud)

#javascript #ai #webdev #beginners

3 min read

Devanshu Biswas

Jun 15

RAG Rerank: the Highest-Leverage Upgrade to Your Retrieval Pipeline

#ai #promptengineering #llm #beginners

2

3 min read

Devanshu Biswas

Jun 15

I Rebuilt Slack's Message Box With Plain HTML, CSS and JS

#css #webdev #frontend #beginners

2

2 min read

Devanshu Biswas

Jun 15

I Built Frogger in 120 Lines of Vanilla JavaScript

#javascript #gamedev #beginners #webdev

2 min read

Devanshu Biswas

Jun 15

What a Neural Net Actually Does — the Intuition, No Math

#ai #machinelearning #beginners #webdev

3 min read

Devanshu Biswas

Jun 15

Backpropagation From Scratch: How a Neural Network Actually Learns

#deeplearning #machinelearning #javascript #beginners

3 min read

Devanshu Biswas

Jun 15

K-Means From Scratch: Finding Groups in Data With No Labels

#machinelearning #javascript #beginners #datascience

1

3 min read

Devanshu Biswas

Jun 15

I Built a Real Phone App With Flutter — One Codebase for iOS + Android

#flutter #mobile #dart #beginners

3 min read

Devanshu Biswas

Jun 15

I Built Speech-to-Text That Runs 100% On My Machine — No Cloud, No API Key (Whisper)

#ai #machinelearning #tutorial #beginners

1

4 min read

Devanshu Biswas

Jun 15

I Built a Study-Notes Summarizer in the Browser — No AI API, Just Word-Frequency Scoring

#javascript #webdev #beginners #tutorial

1

4 min read

Devanshu Biswas

Jun 15

I Built Flappy Bird in 120 Lines of Vanilla JavaScript (No Engine)

#javascript #gamedev #beginners #webdev

2

5 min read

Devanshu Biswas

Jun 15

Embeddings Explained Simply: How AI Turns Words Into a Map of Meaning

#ai #machinelearning #beginners #webdev

3 min read

Devanshu Biswas

Jun 15

ReAct + Tools: How an LLM Actually Uses a Calculator and a Search Engine

#ai #promptengineering #llm #beginners

1

5 min read

Devanshu Biswas

Jun 15

I Cloned the Discord Chat UI With Pure CSS — Here's How the Layout Works

#css #webdev #frontend #beginners

3 min read

Devanshu Biswas

Jun 15

The Forward Pass, Demystified: How a Neural Network Turns Inputs Into an Answer

#deeplearning #machinelearning #javascript #beginners

3 min read

Devanshu Biswas

Jun 15

k-Nearest Neighbors From Scratch: the ML Algorithm With No Training Step

#machinelearning #javascript #beginners #datascience

4 min read

Devanshu Biswas

Jun 14

Tokens: Why ChatGPT Can't Count the R's in 'Strawberry'

#ai #llm #beginners #machinelearning

1

1 min read

Devanshu Biswas

Jun 14

Activation Functions: Why a 100-Layer Network Without Them Is Still One Line

#deeplearning #machinelearning #beginners #javascript

1 min read

Devanshu Biswas

Jun 14

Logistic Regression From Scratch: the Same Gradient Descent, Squashed Through a Sigmoid

#machinelearning #javascript #beginners #datascience

2 min read

Devanshu Biswas

Jun 14

A Resume Bullet Improver in 40 Lines of Regex (No AI Needed)

#javascript #career #beginners #webdev

1 min read

Devanshu Biswas

Jun 14

Tree of Thoughts: How to Make an LLM Explore Instead of Guess

#ai #llm #beginners #tutorial

2 min read

Devanshu Biswas

Jun 14

Spotify's Now-Playing Bar Is Just One CSS Grid + a Ticking Width

#css #javascript #webdev #beginners

1 min read

Devanshu Biswas

Jun 14

I Built Minesweeper in ~50 Lines — the Only Hard Part Is Flood-Fill

#javascript #gamedev #beginners #tutorial

1 min read

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