Collaborative Filtering: How Computers Find Your Next Favourite Thing
🎯 Finding Your Taste Twin Imagine walking into a party where you don't know anyone. Someone notices your t-shirt and starts a conversation: "You like …
Architecture
⚑ Report a ProblemLatest Architecture news from Tech News
All topics
agents
ai
api
architecture
automation
aws
backend
beginners
career
database
devchallenge
devops
discuss
javascript
llm
machinelearning
mcp
opensource
performance
productivity
programming
python
react
security
showdev
softwareengineering
systemdesign
tutorial
typescript
webdev
Building a Perceptual Hash Pipeline for Video Deduplication in Python
A single viral clip never stays a single file. Within hours of a video trending, our crawlers pull the "same" clip back a dozen times: re-encoded at a…
Stop Using Round-Robin: High-Throughput Java Virtual Thread Routing with P2C
Stop Using Round-Robin: High-Throughput Java Virtual Thread Routing with P2C Virtual threads allow Java microservices to comfortably run 50,000 concur…
Why Compressing an Image to Exactly 50KB Is Harder Than It Sounds
Ever wondered why one image hits 50KB at 80% quality while another is still 200KB at 20%? The answer isn't your compression library — it's how JPEG co…
Semantic Drift in LLMs: How Archetypal Attractors (Like “Goblin”) Emerge and How Structured Reflection Reduces Them
Large language models often develop recurring symbolic patterns — archetypes, metaphors, and memetic shortcuts — that appear across unrelated contexts…
From Turbo Pascal to TypeScript: A 35-Year-Old Maze Algorithm Comes Back to Life
In 1991, on a DOS machine with a BGI graphics driver, I wrote a small program that draw colored trees on screen. It wasn't meant to generate mazes. It…
Seeing Code in the Real World: The Bus Seating Problem 🚌
Working in software development, it is hard to turn off the logic center of the brain. Have you ever looked at a completely normal, everyday situation…
Algorithmic Entity Resolution in Music Metadata
In the global streaming economy, Spotify, Apple Music, and other DSPs process billions of plays daily. Behind this massive transaction layer lies a fr…
Building a "Mate-in-One" Chess Puzzle Solver from Scratch
Chess puzzles are incredibly addictive, but have you ever wondered how software instantly verifies if a move is a genuine checkmate? While full chess …
Implementing Chat End-to-End Encryption (E2EE): A Technical Guide to X3DH and Double Ratchet
Claims of "security" are everywhere, but very few chat APIs actually walk the walk. Most offerings fall apart under a true zero-trust audit because th…
A Shortest-Path CLI in Rust — Making a Min-Heap from a Max-Heap, Path Reconstruction, and Rejecting Negative Weights
A CLI that finds shortest paths in a weighted graph, in Rust, with Dijkstra's algorithm. Three implementation hinges: (1) Dijkstra needs a min-priorit…
Temporal ranking finally gaining fruit.
I'm trying to teach my agents what "now" means. Here's how far I've gotten. Immanuel Gabriel Immanuel Gabriel Immanuel Gabriel Follow Jun 20 I'm tryin…
The 15 LeetCode patterns that cover ~90% of coding interviews
Grinding 500 LeetCode problems is the slow way to prep. The fast way is pattern recognition — because most interview questions are a remix of ~15 unde…
[System Design] Part 4 — Amazon CONDOR & Anticipatory Shipping
Amazon Fulfillment: The Three Tiers of Optimization Amazon processes billions of orders annually through a network of over 175 fulfillment centers glo…
[System Design] Ride-Hailing Dispatch Algorithm: How Uber DISCO & Grab DispatchGym Match Drivers
Every time you tap "Book Ride," a system makes dozens of decisions in under two seconds: Which driver? What route? What's the real ETA? This article b…
Surprise Over Age of Fundamental Algorithms: Modern AI Excluded from Standard University Courses
Introduction: The Timeless Nature of Algorithms When you crack open a standard Data Structures and Algorithms textbook, it’s easy to assume the conten…
Hashing in Distributed Systems: A Complete Guide to Algorithms, Best Practices, and Real-World Applications
Have you ever wondered how Discord keeps your channel messages available even when a server goes down? Or how Amazon DynamoDB serves petabytes of data…
A Practical Guide to the ROS Navigation Stack: Core Components & Tuning
With rapid advances in robotics, autonomous navigation has become essential for mobile robots. The ROS Navigation Stack is the de facto open-source fr…
Top 5 Data Visualizations for Algorithmic Trading (With Python Code)
Top 5 Data Visualizations for Algorithmic Trading (With Python Code) Most algo traders write signals. Almost none visualize them correctly. You can ha…
The Algorithmic Yes-Man: Why AI Constantly Agrees with You
It can feel a bit eerie when an artificial intelligence system effortlessly nods along with your ideas, validates an unconventional opinion, or gently…
In my latest signal article, I explore how priority queues and layered execution can help a scheduler preserve interaction responsiveness while still maximizing performance utilization.
Building a Smarter Scheduler: Priority Queues and Layered Execution Luciano0322 Luciano0322 Luciano0322 Follow May 21 Building a Smarter Scheduler: Pr…
Claprec: Machine Learning in Practice (4/6)
Series Roadmap Product Overview (1/6) Architecture: N-Tier Design, Decoupling, and Microservices (2/6) Frontend: Angular, NgRx, and OpenAPI Integratio…
How I Built a Vedic Panchang Engine in TypeScript — Swiss Ephemeris, Meeus Fallback, Zero External APIs
Sub-arcsecond planetary positions, sunrise for any location on Earth, and an entire astronomical calendar — all computed server-side in a Next.js app.…
Am I Ready for FAANG? A Better Test Than Solving More LeetCode
You've solved 200 problems. Mediums you've already seen take fifteen minutes. The next one you haven't seen freezes you cold inside of five. And every…
Integer Sorting via Value-Space Partitioning
Generalizing Dijkstra's Dutch National Flag Algorithm Dijkstra's Dutch National Flag (DNF) algorithm is one of those deceptively simple ideas that bec…
Algorithmic intuition matters more than problem count in coding interviews
Two engineers prep for the same cycle. One solves more than 500 problems and freezes when the medium doesn't look like anything from the practice list…
AlgoExpert vs NeetCode: The Interview Skill Neither One Actually Trains
A few years back I worked through both AlgoExpert and NeetCode while preparing for interviews. The 100 polished videos and the 400+ free walkthroughs …
The 90 Day FAANG Prep Plan That Actually Works
You count the weeks between today and your on site. Twelve. You pull up a 90 day FAANG prep plan and the structure looks reasonable: easy problems for…