The algorithm refers to how videos are selected for the YouTube homepage, how searched videos are ranked, and what videos are suggested for viewers to watch next. The main factors that can affect the algorithm are personalization, performance, and external factors. 

Personalization is based on things such as a viewer’s watch history. Performance is based on how many views the video gets. It can also be affected by factors such as how many people click on the video, how long a video is watched for, the amount of likes and dislikes it has, and if the viewer likes or shares the video. Personalization is determined by things such as what videos the viewer has watched, and what channels a user has watched. External factors that can help with the algorithm are videos that are usually watched together with the chosen video, as well as the target audience for the video. 

One important tip for businesses to work with the algorithm is to create videos based on ones the audience likes. One such example is to make a follow-up to a previous video that was popular. There are also several techniques businesses can use to help make their videos rank at the top of the search results. You can use important keywords relating to your video, and it also depends on how well the video does after the algorithm determines what it is. You can also make an appealing thumbnail.

The YouTube algorithm is important for businesses to understand that are using the site. You can try to work with it by doing several things, including making your videos appealing to others.