Miaosha is a high-concurrency “flash sale” (秒杀) demo that explores how to design a backend capable of withstanding extreme, bursty traffic during limited-time events. It illustrates patterns like cache-first reads for hot data, request rate limiting, and asynchronous order processing to protect databases under load. The project demonstrates stock deduction strategies designed to avoid overselling, combining pre-decrement in cache with reliable persistence and message-driven confirmation....
easyrec is a recommender system that aims for easy integration of recommendations into web applications. It has a web based admin tool, and its recommendation engine is accessible through a REST API, providing methods like 'other users also bought'
Based on HL7 v.2.3.1 Orders & Results Reference Information Model (RIM)s, The project is NOT a CPOE per-se. Instead, the project provides "applications" that allow EHR's to perform Outpatient Orders and Results via HIE, and collect these into their EHRs to feed the EHR "CPOE module / section" (ex. with prescribed drugs, ordered labs and results, ....)
The first module in the project was the "ePrescribing application"; certified by RxHub and SureScripts back in 2007. New...