Understanding TikTok’s recommendation algorithm

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TikTok, the popular short-video sharing platform has become a global phenomenon in the past couple of years. It already has over a billion active users. It has definitely become a very powerful and helpful tool for creators and influencers to share their content or connect with new spectators. An extensive and advanced recommendation algorithm played a huge role in TikTok’s success. 

TikTok’s recomendation algorithm uses a variety of factors to choose what videos to show to every single user. The algorithm takes into account a vast range of data such as the type of content that the particular user watches, general users behaviour and their interactions with other users. 

One of the most important factors that the algorithm considers is the user’s viewing history. If a user watches a video all the way through, leaves a comment or a like, the algorithm will remember that and show the user more videos like that, as they might be interested in them. This ensures that a user is being show only the type of content that they like and enjoy. The algorithm also show the most popular videos among other users providing a sense of community and social interaction. 

User’s interaction with other users is also a very significant factor. When a user gets involved with a particular user’s content by liking, commenting or sharing, the algorithm notes this behaviour and then starts showing more clips from that particular user. This consideration of a user’s interactions with others, like the previous factor, also promotes a sense of community allowing users to be shown content of a user they have previously interacted with.

Sometimes while scrolling through TikTok you might see a video that has been posted a while ago. That’s because the clip has been nothing but popular and trending since it was released, meaning TikTok is suggesting content for you to discover, which you have previously missed, but you might be interested in. This is based on the assumption that you might like something that has gone viral and was liked by many other users. 

This algorithm’s key strength is the ability to personalise content for each individual user. To do it I gathers a vast amount of data and machine learning techniques to learn and understand the preferences of each user. As the algorithm learns about the types of videos each user is likely to like, it adjusts the content according to those preferences. This keeps users engaged with the app and keeps them coming back every now and then. 

However, while the algorithm has come in for praise for the ability to personalise and improve users experience it has also faced criticism for its potential to be manipulated to promote certain types of content over others or to certain types of content to some users based on their demographic information. 

What’s more, the algorithm prioritises content that gets the most attention, likes, views. This sometimes could lead to the spread of misinformation or harmful content. Videos with the biggest amount of attention are much more likely to be shown to more people, even when the information on the video is false of dangerous in some way. 

In summary, TikTok’s recommendation algorithm is a very valuable feature, that aligns the content that users watch with their interests. However its important for the company to make sure that the algorithm is not misused or overused in any way, for instance to spread false information.  

sources:

https://newsroom.tiktok.com/en-us/how-tiktok-recommends-videos-for-you

-https://sproutsocial.com/insights/tiktok-algorithm/

7 thoughts on “Understanding TikTok’s recommendation algorithm

  1. Antoni Mól says:

    The algorithm seems to be a great solution, but in my opinion it should’t prioritise the fake and harmful content. The harmful one is easy to detect so it shouldn’t be promoted. As we know, the fake news spread very quickly due to their controversial content, and algorithms like TikTok ones should’t support it.

  2. 46316 says:

    Great post on TikTok’s recommendation algorithm! It’s amazing how the algorithm personalizes content for each user by taking into account a wide range of factors such as viewing history, user interactions, and popularity. The emphasis on community building through user interactions is a unique feature. However, it’s important to keep in mind the potential downsides such as the spread of misinformation and manipulation of content. That might be very dangerous for tiktok community. It also makes easier to create your own community as content creator, since only people interested in your niche are watching your recordings.

  3. Maciej Pawlak says:

    I’ve never really gone into the workings of this algorithm, I think it’s an important topic because everyone uses these social platforms, if not tik-tok, then others. I think a well-functioning system that effectively matches posts is the key to success in this industry.

  4. 47547 says:

    As a user of Tiktok, I find its algorithms extremely accurate, so I can watch only the stuff which interest me and do not waste time on filtering through videos and finding the best videos for me. However, such algorithm makes your page very narrow, when it comes to variety on contents. Tiktok could be a great platform for spreading knowledge, but on the other side the knowledge may not be true and can lead to misinformation. Thus, when a kid is using the app, he should be supervised.

  5. 47608 says:

    As a TikTok user, I can admit that the algorithm works really well, because it recommends videos that I like to watch and those that deal with topics that interest me. It is nice to find out how does it really works.

  6. Maksymilian Wower says:

    Actually is kind of sad, the algorithm is so good that you get only content you want to see. Then you are addicted after one day and even if you don’t want to you would be scrolling cause every next video would seem extremely interesting and worth watching. Another fact is our focus time which decreases significantly and TikTok made it extremely worse due to 15s video duration. It is tremendously affecting our attention span and personally I have noticed how it affects my studying so I don’t want to imagine how much trouble younger kids would have. And unfortunately almost everysocial platform is copping that model so you cannot run from it.

  7. 48802 says:

    Perhaps this could be used to run tiktok ads correctly and delivering videos to the right audiences. If you back engineer it it could make a lot of sense.

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