Facebook報錯內容Share數

Facebook最近接二連三的傳出錯數問題。這回是Share數 (Share個別網址的數字)。一篇文章的Share數就是顯示它在網絡上流傳多廣泛，但偏偏Facebook這粒數就出了問題。

事緣Marketing Land的Tim Peterson在重新檢視Buzzfeed對於假新聞的Facebook Share數時，發現透過Graph API Explorer所拿到的數，與Facebook Mobile App上提供的數有出入。其中一些文章在Graph API Explorer的Like、Share與Comment的數，比起Mobile App Search Result的Share與Comment的數還少。這樣的情況明顯就是錯誤。

For 20 fake news links and 20 real news links from BuzzFeed’s investigation — the August to Election Day groups — I pulled the total number of engagements from Facebook’s Graph API and the total number of people who shared the link from Facebook’s mobile search results. And that’s when I saw something weird. For three of those 40 links — to NBC News, Breitbart and Liberty News — Facebook said that more people had shared or commented them than had shared or liked or commented on them. And the discrepancies weren’t small. At the time I checked, the NBC News link received 407,708 shares and comments , per the mobile search results, but 237,881 shares and comments and likes, per the Graph API results.

可能你會問，你何時會用到Graph API Explorer去Check數呢？這個情況當然很少，但Share / Like Button都是靠Graph Search來提供數據的 (當中包括了在Facebook站外的Like與Share數，以及在Facebook內的Like與Comment數)。換言之，Share / Like Button的數字與Mobile App上Search功能提供的數字很不相符。

暫時Facebook未知為何這兩個Share數有誤差，所以他們只能說「We are looking into why inputting the URL as a search query in Facebook’s mobile app might have corresponding numbers that can be higher or lower in certain cases. 」

這有待Facebook在查證過後，再交代那個數是準確，還是二者都有問題呢。Like、Comment、Share是Facebook最基本檢視內容散播能力的數字，希望Facebook能盡快提供這問題的更新。

後記：其實上星期五我跟朋友吃完晚飯回家，都有Check過Facebook Newsroom，但卻在Newsroom主頁看到他們最新的Metrics FYI文章，所以錯過了這重大的更新。以後似乎要經常到Metrics FYI這Section查閱了。

[ via Fb Newsroom ]

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