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YouTube Provides New Overview of How its Video Recommendation Systems Work


YouTube has published a handy new overview of how its recommendation system works, in order to help creators build an audience on the platform, and reach more viewers with their clips.

The overview is presented by Rachel Alves, a product manager for discovery at YouTube. Alves has shared various insights into how the platform’s recommendation systems work, and she notes that this presentation, in particular, is usually used at conferences and the like to help people understand the systems that influence how videos are distributed.

As noted by Alves

“You don’t need to be an expert in algorithms of analytics to be successful on YouTube.”

Alves begins with an overview of the core aims of YouTube’s recommendation systems.

YouTube video recommendations guide

The key aim, as noted here, is to keep users coming back, by ensuring that they have a good experience on the platform.

“So we really maximize long-term satisfaction, so viewers keep coming back to YouTube.”

That, of course, is what you would expect, by Alves does note that YouTube has changed what it optimizes for over time.

“If we go back to 2011, what we optimized for was clicks and views […] but that’s not that great of a metric, because it may indirectly incentivize clickbait-y or sensational titles or thumbnails that get people in to watch a video, but doesn’t make them very satisfied or happy.”

YouTube video recommendations guide

Alves says that a lot of the feedback that YouTube got in the early days of its algorithmically-defined feed was that people’s home feeds were being filled with “sensational or off-putting videos”, so it switched focus to watch time as a key metric instead in 2012.

“How much time somebody spends watching a video or channel is much more indicative of the quality of the content, because if you spend more time watching something, it’s more likely that you’re going to be interested in it.”

However, Alves says that watch time isn’t a perfect metric either, because while you may spend more time watching something, that doesn’t necessarily mean that you’ll end up feeling good about that time spent afterwards.

Because of this, YouTube has since been seeking to better define “quality or value” watch time, optimizing more towards user satisfaction.

YouTube does this through:

  • User surveys, helping to optimize for what people like and enjoy (Alves says they send out millions of user surveys every month)
  • Prioritizing authoritative content from recognized, established outlets, especially for news content
  • Reducing the spread of ‘borderline violative content’

So the focus is both on user satisfaction, and ensuring that people feel good about their experience on the platform, while also maintaining responsibility over what gets amplified through its recommendations.

YouTube has, of course, faced various challenges on this front, with the platform regularly coming under scrutiny for amplifying controversial content, including misinformation, conspiracy theories och politically divisive material. There’s no perfect solution for such, but YouTube’s seeking to keep these considerations in mind as it goes about refining its approach to what videos it recommends to users.

In terms of surveys, as noted, YouTube sends out millions of surveys to viewers every month, gathering feedback on a wide range of video uploads.

YouTube video recommendations guide

Alves says that they don’t share this information with creators at the moment, because they often don’t have enough feedback on each individual clip to provide useful feedback, but they can use the info to better inform their algorithms and systems. 

“We are looking at adding more satisfaction data, and externalizing it to creators, so it is something we’re working on.”

And yes – as you may probably expect, in addition to direct feedback via survey prompts, YouTube also uses signals like:

  • When people tap/click on the ‘Not interested’ option in the individual video menu  
  • Likes and dislikes on clips
  • Shares of clips
YouTube video recommendations guide

Like other social platforms, these actions are important in defining video reach through YouTube’s recommendation surfaces (i.e. the Home page and ‘Suggested’ listings). As much as YouTube does want to lean on more in-depth user feedback to determine whether a video provides viewers with a good experience, these lesser, more immediate response metrics do also play a part in determining your performance.

Alves also notes that the Home page and ‘Suggested’ listings actually use different algorithms – so the idea that there’s one central YouTube algorithm is not correct.

“The Home page offers up a broad array of videos when you visit youtube.com, and it uses similar signals as ‘Suggested’, but they are designed to do slightly different things.”

Given this, Alves notes that creators often want to know how they can optimize for each element – to which Alves says ‘you can’t’.

“You can’t optimize for a traffic source, you can only optimize for people or viewers.”

With this in mind, Alves says that creators looking to maximize views from the home page should try to consider their content from the perspective of somebody who’s been recommended their content, due to their interest in similar clips, but may not yet be familiar with their specific channel.

A reference to an in-joke with your audience may work in ‘Suggested’, as these are more aligned to each specific video clip, but in the home feed, you want to consider more general appeal, and what will make newer viewers, with a related interest, click.

YouTube video recommendations guide

As you can see here, Alves also notes that posting consistently can help to keep your videos coming up in relevant user home feeds, alerting them to your latest if they’ve already watched some of your other clips.

In the ‘Suggested’ feed, Alves says that these highlighted clips are designed to guide viewers on what to watch next after the video they’re currently watching.

YouTube video recommendations guide

That means the suggested feed is more specifically aligned with the current clip.

In some ways, you can consider the two surfaces as ‘top of funnel’, or viewers of a more general, yet related interest, with the Home recommendations, then ‘middle of funnel’ with ‘Suggested’, as these viewers have already shown specific interest in your content, by tapping through, and now the recommendations are more closely aligned to that.

Alves says that the most effective tactic she’s seen creators used to maximize their appearances in people’s ‘Suggested’ listings is to develop a video series, or create topically related videos that lead on from one another.

Alves also recommends using a consistent title and thumbnail style.

“You can imagine when a viewer is looking at everything that they could choose to watch next, there are a lot of options there, and if you have really strong, identifiable branding, that’s consistent, it’s really easy to pick out which videos are from your channel, and it just makes that decision all the quicker for viewers.”

Alves also notes that CTA buttons to ‘Watch more’, as well as playlists and end screens are also effective tools in encouraging viewers to keep watching your content.

Alves’ key lesson through this overview is that YouTube’s algorithm is designed to “find videos for viewers, not viewers for videos”.

“Sometimes creators have a perception that the recommendation system pushes out or promotes videos to viewers, when in reality, the system is designed to work the opposite way, where a viewer visits youtibe.com, and then a recommendation system pulls in and then ranks the best candidate for that viewer, depending on the page that they’re on.”

So if you come to the Home page, YouTube will try to show you the content you’ll stick around to watch, based on personalized recommendations (i.e. past history, location, trending, etc.), while if you click through to a specific video, the ‘Suggested’ content will largely be defined by that specific clip. YouTube’s system is not designed to amplify specific clips or creators, as such, but instead, its entire aim is to align with the interests of the individual.

Which seems like a logical process, but it’s also an important point of clarity in this context. 

In essence, what you want to be doing is creating content that appeals to your target audience, then building consistently around themes and topics to keep your viewers coming back, while also maintaining branding elements to strengthen those connections. Part of that will come through research, and understanding what works in your niche, but mapping out a strategic approach, and sticking to that process, is also key to building a YouTube audience over time.

There are some valuable pointers here, which could help in your platform planning – and given YouTube serves over 2 billion monthly active users, and is seeing significant growth in viewing on TV sets, it should be at least a consideration in every marketing plan.



Key Notes on Building Your Brand via Your Social Profile Visuals [Infographic]


Key Notes on Building Your Brand via Your Social Profile Visuals [Infographic]

Looking to give your social profiles a visual refresh for the new year?

This could help – the team from Giraffe Social Media recently put together an overview of the whys and hows of building your brand via your social profile visuals.

There are some good notes here – a key consideration is consistency, which ensures that you’re building your brand with every post and update.

Check out the full infographic below.


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Publicis Performance Marketing Unit Acquires Influencer Platform Perlu 01/30/2023


Publicis Performance Marketing Unit Acquires Influencer Platform Perlu 01/30/2023

Publicis Groupe-owned performance marketing agency CJ, which specializes in affiliate marketing, has acquired Perlu, a Syracuse, New York-based influencer networking and technology platform.
Perlu’s platform enables companies to activate, network, and collaborate with a community of influencers.   

Perlu will initially retain its name and organization as it is
integrated …


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Reports Show that Facebook Usage is Up, as Meta Continues to Develop its AI Targeting Models


Reports Show that Facebook Usage is Up, as Meta Continues to Develop its AI Targeting Models

While Facebook is no longer the cool app, especially among younger audiences, it remains a key platform for many users, and its capacity to keep people updated on important updates from friends and family is likely to ensure that many continue to return to the app every day for some time yet.

But more than that, Facebook usage is actually increasing, according to internal insights viewed by The Wall Street Journal, which also include some interesting notes on overall Facebook and Instagram usage trends.

As per WSJ:

Data gathered in the middle of the fourth quarter showed that time spent on [Facebook] was up worldwide, including in developed markets, over the course of a year.”

Which seems unusual, given the subsequent rise of TikTok, and short form video more generally. But actually, Facebook has been able to successfully use the short-form video trend to drive more usage – despite much criticism of the platform’s copycat Reels feature.

Indeed, Reels consumption is up 20%, and has become a key element in Meta’s resurgence.  

How is it finding success? Increased investment in AI, which has driven big improvements in the relevance models that fuel both Reels and its ads, which are also now driving better response.

On Reels, Meta’s systems are getting much better at showing users the Reels content that they’re most likely to be interested in. You’ve likely noticed this yourself – what was initially a mess of random clips inserted into your Facebook feed has now become more focused, and you’re probably finding yourself expanding a Reels clip every now and then, just to see what it’s about.

Reels has actually been too successful:

“Because ads in Reels videos don’t currently sell for as much as those sold against regular posts and stories, Reels’ growing share of content consumption was denting ad revenue. To protect the company’s earnings, the company cut back on promoting Reels, which lowered watch time by 12%.

So again, while Meta has been criticized for stealing TikTok’s format, it’s once again shown, just as it did with Stories, that this is a viable and beneficial pathway to keeping users engaged in its apps.

You might not like it, but replication works in this respect.

But for marketers, it’s likely the development of Meta’s AI targeting tools for ads that’s of most interest.

Over time, many performance advertisers have been increasingly recommending that marketers trust Meta’s AI targeting, with newer offerings like Advantage+ driving strong results, with far less manual targeting effort.

Advantage+ puts almost total trust in Meta’s AI targeting systems. You can choose a couple of targeting options for your campaigns, but for the most part, the process is designed to limit manual impact, in order to let Meta’s systems determine the right audience for your ads.

Which may feel like you’re ceding too much control, but according to Meta, its continued AI investment is now driving better results.

Heavy investment in artificial intelligence tools has enabled the company to improve ad-targeting systems to make better predictions based on less data, according to the interviews and documents […] That, along with shifting to forms of advertising less dependent on harvesting user data from off its platforms, are key to the company’s plans to overcome an Apple privacy change that restricted Meta’s capacity to gather information about what its users do outside its platforms’ walls, the documents show.”

That’s likely worth considering in your process, putting more trust in Meta’s targeting systems to drive better results. At the least, it may be worth experimenting with Meta’s evolving AI for ad targeting. 

It’s not all good news. Meta also notes that while time spent in its apps is on the rise, creation and engagement is declining, with fewer people posting to both Facebook and Instagram than they have in the past.

That’s particularly true among younger audiences, while notably, usage of Instagram Stories is also in decline, down 10% on previous levels.

So while Meta is driving more engagement from Reels, which draws on content from across the app, as opposed to the people and Pages you follow, that’s also led to a decline in user posting.

Is that a bad thing? I mean, logically, engagement is important in keeping people interested in the app, and Meta also relies on those signals to help refine its ad targeting. So it does need users to be sharing their own content too, but if it can get more people spending more time in its apps, that will help it maintain advertiser interest.

In essence, despite all of the reports of Facebook’s demise, it remains a key connective platform, in various ways, while Meta’s improving ad targeting systems are also helping to drive better results, which will keep it as a staple for brands moving forward.

If you were thinking of diversifying your social media marketing spend this year, maybe don’t reduce Facebook investment just yet.


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