Archives: 2020/5 | Liang Tan's Blog

Never really desperate, only the lost of the soul.

Liang Tan

2020

1.Introduction.Reservoir Sampling is an online algorithm designed for picking up small amount of sample with uniform pro

2020-05-14 Liang Tan

Python Big Data sampling algorithm

A frequently retrieving task is to find the nearest candidate to the target candidate based on speific feature. 1. Naive

2020-05-14 Liang Tan

PostGIS PostgreSQL R-tree SQL Data Structure and algorithm