ANN是一个加快搜索速度的源码程序；通过C++编写，支持在任意高维空间的近似或准确的最近邻搜索。

STANN是轻量级的邻域搜索C++库, 在低维空间性能极为卓越, 特别是3D空间, 比ann-1.1.1好.-STANN is a lightweight thread-safe library for doing Nearest Neighbor searches. It is designed for low dimensional data sets, preferably 3d

ANN & GA In most of the industrial applications the liquid level control is of paramount importance, especially in petrochemical industries, pharmaceutical & food processing industries.