Big Data • Computer Science • Programming
Look at this snippet first: It looks fine at the first glance. However, after the validation, the output was incomplete […]
Big Data • Computer Science • Programming
Look at this snippet first: It looks fine at the first glance. However, after the validation, the output was incomplete […]
Computer Science • Programming
Recently we get the work to improve the ETL efficiency. The latency mostly happen in I/O and file translation, since […]
Computer Science • ETL&DW • Programming
If you are a data scientist, you maybe never need to do the data preprocess work, like ETL/ELT, performance tunning […]
Computer Science • Programming
Handle view and templates View consist of a set of functions which handle the different url request with the specific […]
Computer Science • Programming
An implementation of the singleton pattern must: ensure that only one instance of the singleton class ever exists class creates […]
Computer Science • Programming
Defination of Mandelbort set According to wiki, the Mandelbrot set is the set of complex numbers for which the function […]
Computer Science • Programming
how to pass-by-reference? Many lauguages support pass by value or pass by reference, like C/C++. It copies the address of […]
Most likely every programmer knows python is a low efficiency language, but how slow it is? See this picture: The […]