Reel Friends: Building Social Discovery that Scales to Billions
Reel Friends: Building Social Discovery that Scales to Billions
好友短视频：构建可扩展至数十亿用户的社交发现功能
By Pascal Hartig 作者：Pascal Hartig
On its face the new Friend Bubbles feature looks simple enough. It highlights Reels your friends have watched and reacted to. But sometimes the features that seem the most straightforward require the deepest engineering work. 从表面上看，新的“好友气泡”（Friend Bubbles）功能看起来非常简单。它会突出显示你的好友观看并互动过的 Reels 短视频。但有时，那些看起来最直观的功能，往往需要最深度的工程投入。
On this episode of the Meta Tech Podcast, Pascal Hartig chats with Subasree and Joseph, two software engineers from the Facebook Reels team, about what it took to bring Friend Bubbles to life. They discuss the evolution of the machine learning model behind the feature, the different behaviors between iOS and Android users, and the surprising discovery that finally made the whole feature click. 在本期 Meta 技术播客中，Pascal Hartig 与来自 Facebook Reels 团队的两位软件工程师 Subasree 和 Joseph 进行了交流，探讨了实现“好友气泡”功能背后的心路历程。他们讨论了该功能背后机器学习模型的演进、iOS 与 Android 用户之间的行为差异，以及最终让整个功能“点睛”的那个令人惊喜的发现。
If you’ve ever underestimated a “simple” feature, this one’s for you. Download or listen to the episode below: 如果你曾经低估过某个“简单”的功能，那么这一期节目非常适合你。请在下方下载或收听本期节目：
You can also find the episode wherever you get your podcasts, including: Spotify, Apple Podcasts, Pocket Casts. 你也可以在你常用的播客平台找到本期节目，包括：Spotify、Apple Podcasts 和 Pocket Casts。
The Meta Tech Podcast is a podcast, brought to you by Meta, where we highlight the work Meta’s engineers are doing at every level – from low-level frameworks to end-user features. Meta 技术播客是由 Meta 推出的节目，旨在展示 Meta 工程师在各个层面所做的工作——从底层框架到终端用户功能，应有尽有。
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