graphhopper / graphhopper

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

zinggAI / zingg

Scalable master data management, identity resolution, entity resolution, and deduplication using ML

aws / event-ruler

Event Ruler is a Java library that allows matching many thousands of Events per second to any number of expressive and sophisticated rules.

ronitgupta138 / Apex-Matching-Engine

⚡ Ultra-Low Latency Continuous Double Auction Matching Engine in Java 21 Loom. In-memory L2 market depth, price-time priority, STOMP WebSockets, 50k+ ops/sec.