How an ex-YouTube insider investigated its secret algorithm
“YouTube’s recommendation system draws on techniques in to decide which videos are auto-played or appear “up next”. The precise formula it uses, however, is kept secret. Aggregate data revealing which YouTube videos are heavily promoted by the algorithm, or how many views individual videos receive from “up next” suggestions, is also withheld from the public.
Back to Basics: Algorithms
“The word algorithm was derived from the name Al-Khwarizmi, a 9th-century Persian mathematician and author of The Compendious Book on Calculation by Completion and Balancing. But nowadays the word most often applies to a step-by-step procedure for solving a problem with a computer. ”
How Google Works
“Google’s search engine is a powerful tool. Without search engines like Google, it would be practically impossible to find the information you need when you browse the Web. Like all search engines, Google uses a special algorithm to generate search results. While Google shares general facts about its algorithm, the specifics are a company secret.”