MobilityDB is a geospatial trajectory data management & analysis platform, built on PostgreSQL and PostGIS.

High-performance, low-footprint SQL database written in C++. Process millions of rows per second from Kafka, Pulsar, or ClickHouse, and seamlessly write results back. Supports powerful features lik…

Node Embeddings in Dynamic Graphs

code of HetGNN

DataStax Enterprise running in a Docker Container

A tutorial on the most important features and idioms of Scala that you need to use Spark's Scala APIs.

High Performance Inter-Thread Messaging Library

Distributed parallel processing framework based on DFG model

RoQ, Elastically scalable MOM

realtime search/indexing system