This is a Windows software used for setting the default app for file extensions. This is because the default applications(app) set by the Windows system are often automatically switched. 这是一个Windows工具，用于设置文件扩展名的默认打开程序。而且还有规则空间功能，用户登录规则空间共享程序设计规则，并可以挑选评分最高的规则。file default master（文件默认大师）软件网站：https://3089464667.github.io/default-app/

This repository contains 4 different recommender systems for movies based on user ratings.

Simple movie recommender built in GNU Octave, which creates a database of user ratings (100,000 ratings applied to 9,000 movies by 600 users), receives movie ratings from a new user(from 1 to 5, with half-star ratings allowed) and, based on those, gives the user a number of movie recommendations.