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關於我在 Twitter 上貼的連結... (像是 Retweet,或是透過 Nuzzle/Pocket 貼的連結)

tl;dr:我把 Twitter 當暫存區,把手機上看到的連結丟到 Twitter 後再用桌機打開來看,所以有很多連結我雖然轉發,但未必看過。

我習慣在通勤或是睡前刷一下手機,看一下各類媒體有什麼資訊 (參考「為什麼我還繼續用 RSS (Feed)」這邊,是我找「未知的來源」的一部分),但這麼一來會遇到幾個問題:

  • 時間很零散,或是不長,所以有些文章我會看標題就先找個地方丟出來。
  • 手機上的廣告阻擋機制不太好,桌機的阻擋機制強大許多。

前陣子有些朋友問到為什麼 Twitter 上會有些明顯跟我的意見不同的 tweet,原因就是這樣啦...

Twitter 推出 Full-archive search API

在先前的「Twitter 要推出 Premium API」這篇文章裡有提到 Twitter 打算在 Standard 與 Enterprise 兩個層級中間推出 Premium API,算是補產品線的概念,提供 Startup 有中間階段的服務可以使用。

而在昨天,Twitter 推出了 Full-archive search API:「Introducing the premium full-archive search endpoint」,從 Rate limit 就可以看出來對 Enterprise 不夠用,但對 Startup 應該有機會使用:

台灣用 Twitter 的量偏低,也許對專注在台灣的應用來說還好,但對國外的單位來說應該是多了不少變化可以玩...

幾個 Web API Manager 要設定的東西...

在上一篇提到的「控制瀏覽器裡的 Web API」,用了一兩天後有遇到一些問題,大概整理一下...

  • Gmail 會開不起來,需要將 mail.google.com 列入白名單 (一個阻擋條件都不能設),這是因為遇到瀏覽器的 bug,在「General breakage on specific site · Issue #55 · snyderp/web-api-manager」這邊作者有找到問題,他判斷是瀏覽器的問題後開了 ticket 給 FirefoxChrome,不知道什麼時候會好...
  • 同理,Facebook 右上角的通知也出不來,也是同樣的問題,需要把 www.facebook.com 列入白名單。
  • 另外是 Google Maps 用滑鼠滾輪滾動本來是平滑式的縮放,現在用起來會變成階段式的縮放,原因是 Google Maps 用到 WebGL Specification (在 Lite 裡面會阻擋)。這有兩個方向可以改,一個是把 www.google.com (或是 www.google.com.tw,看你用的網域) 另外開一組設定管理,另外一個是直接把 WebGL Specification 的阻擋關掉。

目前遇到的大概就是這些了...

各種道路設計對於流量的影響?

在「The rates of traffic flow on different kinds of 4-way intersections」這邊看到有趣的東西,利用遊戲 Cities: Skylines 模擬各種道路設計對流量的影響:

This is an animation of traffic flows simulated on 30 different kinds of four-way junctions, from two roads intersecting with no traffic lights or signs to complex stacked interchanges that feature very few interactions between individual cars. It was recorded in a game called Cities: Skylines, a more realistic take on SimCity.

影片在這:

記得這是模擬,實際情況會有其他考量,所以裡面的結果參考就好...

然後裡面有看到很多常見的設計,還有一些沒看過的神奇設計 XD 另外有些設計超級複雜,第一次開的人真的會知道怎麼開嗎 XDDD

Facebook 自己找人研究,Social Media 是否對人類有害 XDDD

之前看到「Hard Questions: Is Spending Time on Social Media Bad for Us?」這篇,一直不知道要怎麼吐槽... 然後看到 Twitter 上的這則 tweet XDDD

既視感太重了,找了一下其他行業對應的資料:

真的不知道怎麼吐槽 XDDD

Twitter 放出來的 Vireo,一套 Open Source 授權的 Video Processing Library

Twitter 放出 Vireo,一套以 MIT License 釋出的 Video Processing Library:「Introducing Vireo: A Lightweight and Versatile Video Processing Library」。專案庫在 GitHubtwitter/vireo 可以取得。

C++ 寫的,另外也已經提供 Scala 的接口,這應該是讓 Twitter 的人可以方便使用:

Vireo is a lightweight and versatile video processing library that powers our video transcoding service, deep learning recognition systems and more. It is written in C++11 and built with functional programming principles. It also optionally comes with Scala wrappers that enable us to build scalable video processing applications within our backend services.

在 Tools 的部份也可以看到很多功能,像是:

thumbnails: extracts keyframes from the input video and saves them as JPG images

viddiff: checks if two video files are functionally identical or not (does not compare data that does not affect the playback behavior)

另外要注意的是,預設不會將 GPL 的套件納入編譯,需要指定 --enable-gpl 才會編進去:

The following libraries are disabled by default. To enable GPL licensed components, they have to be present in your system and --enable-gpl flag have to be explicitly passed to configure

看起來主要就是最常見的那包... (libavformat / libavcodec / libavutil / libswscale / libx264)

俄羅斯在英國脫歐的議題上,也利用 Social Network 的廣告影響民意

TechCrunch 上看到的,俄羅斯政府不只在美國選舉時這樣做,同時也在英國脫歐公投的議題上進行操作:「Twitter says Russians spent ~$1k on six Brexit-related ads」。

不過金額比美國選舉時小了很多:

In response to the Commission’s request for information concerning Russian-funded campaign activity conducted during the regulated period for the June 2016 EU Referendum (15 April to 23 June 2016), Twitter reviewed referendum-related advertising on our platform during the relevant time period.

Among the accounts that we have previously identified as likely funded from Russian sources, we have thus far identified one account—@RT_com— which promoted referendum-related content during the regulated period. $1,031.99 was spent on six referendum-related ads during the regulated period.

With regard to future activity by Russian-funded accounts, on 26 October 2017, Twitter announced that it would no longer accept advertisements from RT and Sputnik and will donate the $1.9 million that RT had spent globally on advertising on Twitter to academic research into elections and civil engagement. That decision was based on a retrospective review that we initiated in the aftermath of the 2016 U.S. Presidential Elections and following the U.S. intelligence community’s conclusion that both RT and Sputnik have attempted to interfere with the election on behalf of the Russian government. Accordingly, @RT_com will not be eligible to use Twitter’s promoted products in the future.

Twitter 的 280 字帶來的差異

在「140 Vs. 280: Users Engage With Longer Tweets Data Shows」這邊分析了在 Twitter 上 0~140 與 141~280 字的 tweet 所帶來的互動差異:

可以看到較長的 tweet 會有比較多的 retweet 與 like,不過更細一步的分析就沒有了... 文章內也有提到資料的分析是怎麼來的:

The data parameters: 30,000 publisher tweets that included links between November 29 – December 6.
The results: The click-through rate was roughly equal for both tweet length types but overall engagement nearly doubled for longer tweets. On tweets containing 141-280 characters, the average retweet was a staggering 26.52% – compared the 13.71% for tweets with 0-140 characters. For likes, tweets containing 141-280 characters had an average of a whopping 50.28%, compared to 0-140’s 26.96%.

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