Facebook 的招募狀況

Facebook 的各種醜聞知道招募變難 (而且醜聞沒停過),但變得多困難則是第一次看到報導:「Facebook has struggled to hire talent since the Cambridge Analytica scandal, according to recruiters who worked there」。

新鮮人的接受從 85% 掉到 35%~55%,依據不同的學校而有差異:

Among top schools, Facebook’s acceptance rate for full-time positions offered to new graduates has fallen from an average of 85% for the 2017-2018 school year to between 35% and 55% as of December.

Among top schools, such as Stanford, Carnegie Mellon and Ivy League universities, Facebook’s acceptance rate for full-time positions offered to new graduates has fallen from an average of 85% for the 2017-2018 school year to between 35% and 55% as of December, according to former Facebook recruiters. The biggest decline came from Carnegie Mellon University, where the acceptance rate for new recruits dropped to 35%.

工程師則是從 90% 掉到 50%:

The company has seen a decline in its job offer acceptance rates to software engineer candidates from nearly 90% in late 2016 to almost 50% in early 2019.

Facebook 發言人 Anthony Harrison 否認,不過沒有給出說明:

After the publication of this story, Harrison contacted CNBC to say "these numbers are totally wrong."

Facebook disputed the accuracy of the recruiters' accounts, but declined to point out any specific points that were wrong.

Hacker News 上的討論也蠻有趣的:「https://news.ycombinator.com/item?id=19931977」,有不少其他的觀察。

Pornhub 想買 Tumblr?

看到 Pornhub 想要買 Tumblr 的新聞:「Pornhub wants to buy Tumblr and restore site to former porn-filled glory」。

如果是其他家買可能還沒感覺,但如果是 Pornhub 買的話真的有機會恢復往日榮光的感覺?當然本來已經被迫離開的那些人應該是不會回來...

Apache Software Foundation 把程式碼交給 GitHub 託管

ASFGitHub 兩邊的新聞稿都釋出了:「Apache Software Foundation joins GitHub open source community」、「The Apache® Software Foundation Expands Infrastructure with GitHub Integration」。

整個搬到 GitHub 上面省得自己管,而且這個年頭的開發者 (至少是 ASF 這群) 大多也都熟悉 Git 與 GitHub 的操作,轉移過去的學習成本不算高...

另外就是一堆既有的服務 (像是 CI/CD 類的) 都有支援 GitHub,不少對 open source project 是有免費方案可以用的,只需要按幾個鍵授權就好了,不用自己架設...

回來用 uBlock Origin 擋 Facebook 廣告...

基本上現在是哪個有用就用哪個... @_@

先前提到的「擋 Facebook 廣告的 Userscript」這個又不會動啦... 所以又到處找方法,目前看起來在 uBlock Origin 的「Facebook · Issue #3367 · uBlockOrigin/uAssets」這邊有一直在討論新的擋法,之後如果又看到廣告就過來這邊看一下...

目前用這組:

www.facebook.com##div[id^=hyperfeed_story_id_]:has(span[data-ft="{\"tn\":\"j\"}"])
www.facebook.com##.pagelet-group .pagelet:has(a:has-text(Sponsored))
www.facebook.com##.pagelet-group .pagelet:has(a:has-text(Create ad))

不知道可以活多久...

Facebook 員工爆料內部密碼存了明碼

Krebs on Security 這邊看到的:「Facebook Stored Hundreds of Millions of User Passwords in Plain Text for Years」,Facebook 官方的回應在「Keeping Passwords Secure」這邊。

幾個重點,第一個是範圍,目前已經有看到 2012 的資料都有在內:

The Facebook source said the investigation so far indicates between 200 million and 600 million Facebook users may have had their account passwords stored in plain text and searchable by more than 20,000 Facebook employees. The source said Facebook is still trying to determine how many passwords were exposed and for how long, but so far the inquiry has uncovered archives with plain text user passwords dating back to 2012.

另外的重點是這些資料已經被內部拿來大量搜尋 (喔喔):

My Facebook insider said access logs showed some 2,000 engineers or developers made approximately nine million internal queries for data elements that contained plain text user passwords.

另外是 Legal 與 PR 都已經啟動處理了,對外新聞稿會美化數字,降低傷害:

“The longer we go into this analysis the more comfortable the legal people [at Facebook] are going with the lower bounds” of affected users, the source said. “Right now they’re working on an effort to reduce that number even more by only counting things we have currently in our data warehouse.”

另外也會淡化後續的程序:

Renfro said the company planned to alert affected Facebook users, but that no password resets would be required.

去年的另外一則新聞可以交叉看:「Facebook’s security chief is leaving, and no one’s going to replace him」:

Instead of building out a dedicated security team, Facebook has dissolved it and is instead embedding security engineers within its other divisions. “We are not naming a new CSO, since earlier this year we embedded our security engineers, analysts, investigators, and other specialists in our product and engineering teams to better address the emerging security threats we face,” a Facebook spokesman said in an email. Facebook will “continue to evaluate what kind of structure works best” to protect users’ security, he said.

看起來又要再換一次密碼了... (還好已經習慣用 Password Manager,所以每個站都有不同密碼?)

喔對,另外補充一個概念,當他們說「我們沒有證據有人存取了...」的時候,比較正確的表達應該是「我們沒有稽核這塊... 所以沒有證據」。

加州大學宣佈不與 Elsevier 續約

加州大學 (這是一個大學系統,包括了十個校區,超過 25 萬的學生與 14 萬的教職員) 認為 Elsevier 沒有達到 open access 應有的標準,決定將不再跟 Elsevier 續約,並且發出新聞稿抨擊 Elsevier:「UC terminates subscriptions with world’s largest scientific publisher in push for open access to publicly funded research」。

As a leader in the global movement toward open access to publicly funded research, the University of California is taking a firm stand by deciding not to renew its subscriptions with Elsevier. Despite months of contract negotiations, Elsevier was unwilling to meet UC’s key goal: securing universal open access to UC research while containing the rapidly escalating costs associated with for-profit journals.

這應該是美國頂尖學院裡面的第一槍?後續會帶動多少單位不續訂...

LinkedIn 用機器學習提供雇主可能的職缺對象

先前看到「Learning Hiring Preferences: The AI Behind LinkedIn Jobs」這篇,LinkedIn 用機器學習提供雇主可能的對象。

依照官方的說法,這次提到的改進是透過雇主的行為調整推薦。當雇主對某個人有興趣的時候,LinkedIn 就會調整演算法去配合雇主有興趣的條件:

Based on how you interact with candidates, our algorithm learns your preferences and delivers increasingly relevant candidates across the Jobs product. If you’re consistently interested in candidates who are, say, accountants with leadership skills, or project managers who are adept at social media, we’ll send you more of those. And this all happens online in real time so that your feedback is taken instantly into account.

透過模擬 20% 的加成:

This new algorithm, which is used throughout the Jobs platform, performs nearly 20% better than the previous version in generating recommendations when we simulate our members' past hiring activity.

在 social network 這種演算法其實就是同溫層 (Echo chamber、Filter bubble),在 LinkedIn 這樣的行為不知道會不會牽扯到 Discrimination 的議題...

Internet 上的 3rd party js 的情況

Twitter 上看到這則:

裡面提到了「patrickhulce/third-party-web」的分析 (作者是從 HTTP Archive 的資料分析),裡面依照不同種類的 3rd party js (像是 ad,或是 social element,或是分析工具) 需要執行的時間,以及使用的站台數量。

Social 那邊意外看到 PIXNET 有上去,然後速度只比 Disqus 快一些,應該是沒有 optimize 的關係。

如果整體一起看的話 (總和花費時間),可以看到 Google 各項產品都在最前面,畢竟裡面每個項目都是被廣泛使用的。

西班牙透過新法規限制 Uber 營業

包括 UberCabify 都受到新規範影響:「Ride-hailing companies suspend Barcelona services after new regulations」。

新規範限制乘客必須在上車前十五分鐘叫車:

The Catalan government ruled that ride-hailing services could only pick up passengers after a 15-minute delay from the time they were booked.

不是直接說你違法,而是用這個方式壓制隨叫隨到的服務... 這個方式應該會擴散到其他地區。

Nuzzel 賣給 Scroll

Nuzzel 是一個可以提供你會有興趣的文章的服務,不過因為他使用的演算法比較簡單的關係 (列出追隨者的的追隨者有出現哪些文章),其實同溫層現象 (Echo chamber 或是 Filter bubble) 還濃的。但畢竟就取得資訊來說是個還可以的地方,就一直有在使用...

而剛剛看到 Nuzzel 被 Scroll 買下的消息,而原來團隊的大老就直接脫手了:「News aggregator Nuzzel sold to subscription service Scroll」。

Nuzzel founder and CEO Jonathan Abrams and COO Kent Lindstrom are leaving the company, Scroll CEO Tony Haile told VentureBeat.

Haile will oversee Nuzzel’s operations going forward, and he intends to keep the service independent. “Our first priority is not to screw that up,” he told VentureBeat. “If you like the email digest, you’ll still get the email digest. If you love the app, it will still give you the best discovery experience around.”

看起來不太妙... 又要找替代方案了嗎 :o