cyber4ron

bp-nn

c# implementation of back-propagation neural network, support customized loss function & transfer function, arbitrary number of hidden layers, customized gradient decent step calculation function and WinForm based UI.

dag-scheduler

A task scheduler use in our daily batch processing job.

pedt-scala

Scala implementation of PEDT

user-profiling

User profiling in lianjia.com implements lambda architecture, with real-time user online behavior collecting & preference tagging, cross-device user identification, some user behavior prediction, etc.

mmo-server

Several code snippet of a mmorpg project.

akka-app

An Akka application for real-time business metric query service.

association-rule

c# implementation of apriori, fp-growth, and some optimized association-rule algorithm

DataAPI

groupcache

groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases.

grpc-java

The Java gRPC implementation. HTTP/2 based RPC

notes

Some notes and images

OpenAPI

RecSysArcht

spark

Mirror of Apache Spark

tf_scripts