Instagram用戶丟失了70%的貼文和50%的好友貼文，而在2016年7月，該應用放棄了按時間倒序排列的推送給演算法。儘管人們對排序的混亂反應強烈，但Instagram現在表示，相關性排序已經導致8億多用戶看到了他們朋友的90%的貼文，並花更多的時間在這款應用上。
Yet Instagram has never explained exactly how the algorithm chooses what to show you until today. The Facebook -owned company assembled a group of reporters at its under-construction new San Francisco office to take the lid off the Instagram feed ranking algorithm.
然而，直到今天，Instagram還從未確切地解釋過演算法是怎麼挑選貼文給你。在Facebook旗下的公司在尚在裝修中的San Francisco新辦公室召集了一群記者，試圖揭開Instagram
feed排名演算法的面紗。
Instagram’s feed ranking criteria
Instagram relies on machine learning based on your past behavior to create a unique feed for everyone. Even if you follow the exact same accounts as someone else, you’ll get a personalized feed based on how you interact with those accounts.
Instagram的排名標準
Instagram依靠你過去行為的機器學習為每個人創建一個獨特的feed。即使你關注的帳戶和其他人完全相同，你也可以根據你與這些帳戶的互動方式獲得個性化的資訊。
Three main factors determine what you see in your Instagram feed:
三個主要因素決定了你在Instagram上看到了什麼:
Interest: How much Instagram predicts you’ll care about a post, with higher ranking for what matters to you, determined by past behavior on similar content and potentially machine vision analyzing the actual content of the post.
興趣:Instagram預測你會對一篇文章有多在意，對你來說什麼更重要，取決於你過去對類似內容的行為，以及分析文章實際內容的機器視覺。
Recency: How recently the post was shared, with prioritization for timely posts over weeks-old ones.
近似值:這個貼文最近是如何被分享的，及時發佈的貼文比幾個星期前發佈的貼文要優先。
Relationship: How close you are to the person who shared it, with higher ranking for people you’ve interacted with a lot in the past on Instagram, such as by commenting on their posts or being tagged together in photos.
人際關係:你和分享你的人有多親密，對於你過去在Instagram上經常與之互動的人來說，你的排名更高，比如評論他們的貼文或者在照片中被貼上標籤。
Beyond those core factors, three additional signals that influence rankings are:
除了這些核心因素，影響排名的另外三個因素是:
Frequency: How often you open Instagram, as it will try to show you the best posts since your last visit.
頻率:你打開Instagram的頻率，因為它會向你展示自上次瀏覽以來最好的貼文。
Following: If you follow a lot of people, Instagram will be picking from a wider breadth of authors so you might see less of any specific person.
追蹤:如果你關注很多人，Instagram會從更廣泛的追蹤者中挑選，這樣你將會看到較少的人。
Usage: How long you spend on Instagram determines if you’re just seeing the best posts during short sessions, or it’s digging deeper into its catalog if you spend more total time browsing.
用法:你在Instagram上花了多長時間，決定了你是否只是在短時間內看到了最好的貼文，或者如果你花較多的時間去瀏覽，它會深入到你的目錄中。
Instagram mythbusting
Instagram破解謎底Instagram’s team also responded to many of the most common questions and conspiracy theories about how its feed works. TechCrunch can’t verify the accuracy of these claims, but this is what Instagram’s team told us:
Instagram的團隊還回答了許多最常見的問題和關於其feed如何工作的陰謀論。TechCrunch無法證實這些說法的準確性，但Instagram的團隊告訴我們:
Instagram is not at this time considering an option to see the old reverse chronological feed because it doesn’t want to add more complexity (users might forget what feed they’re set to), but it is listening to users who dislike the algorithm.
Instagram目前沒有考慮查看舊的倒敘提要的選項，因為它不想增加更多的複雜性(用戶可能會忘記設置的提要是什麼)，但它正在傾聽不喜歡該演算法的使用者的意見。
Instagram does not hide posts in the feed, and you’ll see everything posted by everyone you follow if you keep scrolling.
Feed ranking does not favor the photo or video format universally, but people’s feeds are tuned based on what kind of content they engage with, so if you never stop to watch videos you might see fewer of them.
Instagram不會在feed中隱藏文章，如果你繼續滑IG，你會看到你關注的每個人發佈的所有內容。
feed排名並不普遍支援照片或影片格式，但是人們的feed是根據他們所參與的內容進行調整的，所以如果你不停止觀看視頻，你可能會看到更少的視頻。
Instagram’s feed doesn’t favor users who use Stories, Live, or other special features of the app.
Instagram doesn’t downrank users for posting too frequently or for other specific behaviors, but it might swap in other content in between someone’s if they rapid-fire separate posts.
Instagram doesn’t give extra feed presence to personal accounts or business accounts, so switching won’t help your reach.
Instagram的feed並不支援那些使用故事、直播或其他特殊功能的用戶。
Instagram不會因為用戶發佈太頻繁或其他特定行為而降低用戶的排名，但如果他們快速地發佈不同的貼文，它可能會在使用者的其他內容之間切換。
Instagram不給個人帳戶或商業帳戶提供額外的服務，所以切換不會説明你達到目標。
Shadowbanning is not a real thing, and Instagram says it doesn’t hide people’s content for posting too many hashtags or taking other actions.
“Shadowbanning”並不是真的事情，Instagram表示，它不會因為發佈了太多的話題標籤或採取了其他行動而隱藏人們的內容。
Today’s Instagram whiteboard session with reporters, its first, should go a long way to clearing up misunderstandings about how it works. When people feel confident that their posts will reach their favorite people, that they can reliably build a public audience, and that they’ll always see great content, they’ll open the app more often.
今天Instagram上與記者們的白板會議是第一次，對於消除人們對其工作方式的誤解應該大有説明。當人們相信他們的文章會被他們喜歡的人看到，他們可以可靠地建立公眾受眾，並且他們總是能看到很棒的內容時，他們就會更經常地打開應用。
Yet on the horizon looms a problem similar to what Facebook’s algorithm experienced around 2015: competition reduces reach. As more users and businesses join Instagram and post more often, but feed browsing time stays stable per user, the average post will get drowned out and receive fewer views. People will inevitably complain that Instagram is trying to force them to buy ads, but it’s a natural and inevitable consequence of increasingly popular algorithmic feeds.
然而，在地平線上出現了一個問題，類似於Facebook在2015年所經歷的演算法:競爭降低了覆蓋面。隨著越來越多的用戶和企業加入Instagram並更頻繁地發佈內容，但是每個使用者的feed瀏覽時間都保持穩定，一般的貼文會被淹沒，瀏覽量也會減少。人們不可避免地會抱怨Instagram試圖強迫他們購買廣告，但這是越來越流行的演算法回饋的自然而不可避免的結果。
The more Instagram can disarm that problem by pushing excess content creation to Stories and educating users about how the feed operates, the less they’ll complain. Facebook is already uncool, so Instagram must stay in our good graces.
Instagram可以通過將多餘的內容創建到Stories中，並教育用戶如何操作來消除這個問題，他們會抱怨的越少。Facebook已經不酷了，所以Instagram必須保持我們大眾的好感度。
*chronological
形容詞:依時間前後排列而記載的
*disarm
動詞:消除……的傷害力、消除……的怒氣（或敵意等）、緩和
原文出處: https://techcrunch.com/2018/06/01/how-instagram-feed-works/
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翻譯練習，中文僅供參考
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