深入的讲解C++对象模型，不管你想学COM、CORBA、SOM,了解C++ OBJECT将使你清楚地认识设计与运用之道-In-depth explanation C++ object model, whether you want to learn COM, CORBA, SOM, to understand C++ OBJECT will give you a clear understanding of the design and use of the Road

self organizing maps

this code cluster the data with SOM(self organize mapping) method.