Devanshu Biswas - DEV Community

Devanshu Biswas

Jul 7

Day 17: Extracting the Inventory service from my Spring Boot monolith

#springboot #java #microservices #backend

3 min read

Devanshu Biswas

Jul 7

Why letting an AI think longer can flip a wrong answer to a right one

#ai #llm #machinelearning #beginners

4 min read

Devanshu Biswas

Jul 7

LayerNorm vs BatchNorm: why Transformers normalize per token, not per batch

#machinelearning #deeplearning #ai #nlp

3 min read

Devanshu Biswas

Jul 7

How collaborative filtering recommends from ratings alone

#machinelearning #ai #datascience #python

3 min read

Devanshu Biswas

Jul 7

How a Lorem Ipsum generator actually builds fake Latin from a real word pool

#javascript #webdev #programming #beginners

4 min read

Devanshu Biswas

Jul 7

Program-Aided Language Models: stop making the model do the math

#ai #llm #promptengineering #beginners

4 min read

Devanshu Biswas

Jul 7

Build an accessible accordion from scratch (with a real height animation)

#javascript #webdev #css #a11y

3 min read

Devanshu Biswas

Jul 7

Tower of Hanoi from scratch: the four-line recursion behind 2^n-1 moves

#javascript #gamedev #beginners #algorithms

4 min read

Devanshu Biswas

Jul 6

I Built a React Suspense Lab: use(), Parallel Boundaries, useTransition & lazy()

#react #javascript #webdev #beginners

2 min read

Devanshu Biswas

Jul 6

I Built a Spring @Cacheable Visualizer (Hit/Miss, Cache-Aside, TTL, @CacheEvict)

#spring #java #backend #redis

1

2 min read

Devanshu Biswas

Jul 6

Idempotency keys: making a POST safe to retry

#springboot #java #redis #backend

4 min read

Devanshu Biswas

Jul 6

Grounding and citations: making LLM answers you can actually verify

#ai #llm #rag #beginners

3 min read

Devanshu Biswas

Jul 6

GRU: the streamlined LSTM with just two gates

#machinelearning #deeplearning #ai #nlp

4 min read

Devanshu Biswas

Jul 6

Isolation Forest: find outliers by how fast you can fence them off

#machinelearning #ai #datascience #python

3 min read

Devanshu Biswas

Jul 6

How one line of Unicode turns "Café Déjà Vu!" into a clean URL slug

#javascript #webdev #programming #beginners

4 min read

Devanshu Biswas

Jul 6

Meta-prompting: let the model write your prompts

#ai #llm #promptengineering #beginners

4 min read

Devanshu Biswas

Jul 6

Building a dual-thumb range slider from scratch (no input type=range)

#javascript #webdev #css #a11y

3 min read

Devanshu Biswas

Jul 6

How a Match-3 game is really just one 8x8 grid of numbers

#javascript #gamedev #beginners #algorithms

3 min read

Devanshu Biswas

Jul 5

Retry, timeout and bulkhead: composing Resilience4j the right way

#springboot #java #resilience4j #backend

1

4 min read

Devanshu Biswas

Jul 5

Flash Attention: exact attention without the N N memory blow-up

#ai #llm #machinelearning #gpu

1

4 min read

Devanshu Biswas

Jul 5

Beam Search from scratch: greedy vs beam vs sampling

#machinelearning #deeplearning #ai #nlp

3 min read

Devanshu Biswas

Jul 5

Hierarchical clustering: merge nearest, read the dendrogram

#machinelearning #ai #datascience #python

3 min read

Devanshu Biswas

Jul 5

Why v7 UUIDs beat v4 for database keys (and how to hand-roll both)

#javascript #webdev #programming #beginners

1

4 min read

Devanshu Biswas

Jul 5

Self-Discover: let the model design its own reasoning plan

#ai #llm #promptengineering #beginners

3 min read

Devanshu Biswas

Jul 5

Build an iOS-style segmented control with a sliding thumb

#javascript #webdev #css #a11y

3 min read

Devanshu Biswas

Jul 5

Nonograms are a constraint puzzle: building Picross from run-length clues

#javascript #gamedev #beginners #algorithms

1

4 min read

Devanshu Biswas

Jul 4

Spring vs Tween, and 3 More: I Built a Framer Motion Playground With the Code Beside Each Demo

#react #javascript #webdev #css

1

2 min read

Devanshu Biswas

Jul 4

I Built a Regex Visualizer: Live Matches, Capture Groups, and a Plain-English Breakdown

#javascript #webdev #regex #beginners

2 min read

Devanshu Biswas

Jul 4

Stop calling a service that's already down: circuit breakers with Resilience4j

#springboot #java #resilience4j #backend

4 min read

Devanshu Biswas

Jul 4

LoRA: Fine-Tune a Giant Model by Training 1% of It

#ai #llm #machinelearning #beginners

4 min read

Devanshu Biswas

Jul 4

Seq2Seq and Encoder-Decoder: the one-vector bottleneck that led to attention

#machinelearning #deeplearning #ai #nlp

4 min read

Devanshu Biswas

Jul 4

UMAP: a faster map of high-dimensional data (and how it beats t-SNE)

#machinelearning #ai #datascience #python

4 min read

Devanshu Biswas

Jul 4

Base64, done properly: the UTF-8 gotcha most tutorials skip

#javascript #webdev #beginners #programming

4 min read

Devanshu Biswas

Jul 4

Plan-and-Solve: make the model plan the steps before it computes any of them

#ai #llm #promptengineering #beginners

1

4 min read

Devanshu Biswas

Jul 4

The dropdown menu that everyone builds wrong

#javascript #webdev #css #a11y

4 min read

Devanshu Biswas

Jul 4

Lights Out is secretly linear algebra: building the toggle-grid puzzle

#javascript #gamedev #beginners #algorithms

1

4 min read

Devanshu Biswas

Jul 3

Knowledge Distillation: Fit a Big Model's Smarts Into a Small One

#ai #llm #machinelearning #beginners

3 min read

Devanshu Biswas

Jul 3

One client shouldn't be able to drown your API: rate limiting with Bucket4j and Redis

#springboot #java #redis #backend

4 min read

Devanshu Biswas

Jul 3

Word2Vec from scratch: how "king man + woman queen" actually works

#machinelearning #deeplearning #ai #nlp

4 min read

Devanshu Biswas

Jul 3

t-SNE from scratch: how a 6-dimensional blob untangles itself into a 2D map

#machinelearning #ai #datascience #python

4 min read

Devanshu Biswas

Jul 3

One Colour, Three Spellings: HEX, RGB and HSL (and How to Convert Between Them)

#javascript #webdev #css #beginners

1

4 min read

Devanshu Biswas

Jul 3

ReWOO: plan every tool call up front, then call the model only twice

#ai #llm #promptengineering #agents

4 min read

Devanshu Biswas

Jul 3

Building an accessible autocomplete from scratch (no library)

#javascript #webdev #css #a11y

1

3 min read

Devanshu Biswas

Jul 3

I built Sokoban in ~90 lines, and the whole game is one rule: you can push, never pull

#javascript #gamedev #beginners #algorithms

1

4 min read

Devanshu Biswas

Jul 3

react-hook-form + zod: I Built a Playground That Shows the Render Count and the Schema-Derived Types

#react #javascript #webdev #typescript

2 min read

Devanshu Biswas

Jul 3

I Built a Load Balancer Lab: Round-Robin vs Least-Connections vs IP-Hash, Live

#systemdesign #webdev #backend #devops

2 min read

Devanshu Biswas

Jul 1

Caching That Survives Real Traffic: TTL Jitter and Single-Flight in Spring Boot

#springboot #java #redis #backend

2 min read

Devanshu Biswas

Jul 1

Why Your LLM Doesn't Re-Read the Prompt: The KV-Cache

#ai #llm #machinelearning #beginners

1

2 min read

Devanshu Biswas

Jul 1

One "+x" That Made 100-Layer Networks Trainable: ResNet Skip Connections

#machinelearning #deeplearning #ai #beginners

2 min read

Devanshu Biswas

Jul 1

Gaussian Mixture Models: Soft Clustering with the EM Algorithm

#machinelearning #ai #datascience #beginners

2 min read

Devanshu Biswas

Jul 1

The Unix Timestamp, Demystified (and the 1000 Bug That Bites Everyone)

#javascript #webdev #beginners #programming

2 min read

Devanshu Biswas

Jul 1

Skeleton of Thought: Make an LLM Answer 2–3 Faster

#ai #llm #promptengineering #beginners

2 min read

Devanshu Biswas

Jul 1

The Tooltip Problem: A Little Box That Never Falls Off Screen

#javascript #webdev #css #beginners

2 min read

Devanshu Biswas

Jul 1

I Built a Tic-Tac-Toe AI That Literally Cannot Lose

#javascript #gamedev #beginners #algorithms

2 min read

Devanshu Biswas

Jul 1

Same request. Same answer. One is ~120ms, the other is ~2ms. The only difference is whether it came from Postgres or from Redis.

#springboot #java #redis #backend

1

5 min read

Devanshu Biswas

Jul 1

How to Make an LLM 2-3x Faster Without Changing a Single Word It Says

#ai #llm #machinelearning #beginners

1

4 min read

Devanshu Biswas

Jul 1

Your gradient dies on the way to layer 1 (and how to save it)

#machinelearning #deeplearning #ai #beginners

1

4 min read

Devanshu Biswas

Jul 1

AdaBoost from Scratch: How a Pile of Dumb Rules Becomes a Smart Classifier

#machinelearning #ai #javascript #beginners

2

5 min read

Devanshu Biswas

Jul 1

I finally understood cron expressions by building an explainer for them

#javascript #webdev #beginners #devops

2

1

5 min read

Devanshu Biswas

Jul 1

Graph of Thoughts: when a tree of reasoning isn't enough, let the branches merge

#ai #llm #promptengineering #beginners

4 min read

Writing Debut