facebook

2 posts
How Facebook disappeared from the internet

Cloudflare describes how things looked from their point of view the day that Facebook, along with its other properties, went down. From the Border Gateway Protocol, which defines routing information: A BGP UPDATE message informs a router of any changes you’ve made to a prefix advertisement or entirely withdraws the prefix. We can clearly see this in the number of updates we received from Facebook when checking our time-series BGP...

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Facebook feed comparison between groups

As part of their Citizen Browser project to inspect Facebook, The Markup shows a side-by-side comparison between Facebook feeds for different groups, based on the feeds of 1,000 paid participants. There are pretty big differences for news sources and group suggestions, but the news stories don’t seem as big as you might think with a median 3 percentage points difference between groups. Although, the distribution shows a wider spread. Tags:...

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Trump’s criminal justice ad spending on Facebook

The Marshall Project contrasted ad spending on Facebook by Trump’s campaign against Joe Biden’s: Our analysis found that of the $82 million Trump’s reelection campaign has spent on Facebook ads this year, $6.6 million paid for ads about crime and policing—a top focus of his Facebook campaign. Almost all of it came since George Floyd was killed by police in Minneapolis in May. More than one-third of those ad buys...

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Readability of privacy policies for big tech companies

For The New York Times, Kevin Litman-Navarro plotted the length and readability of privacy policies for large companies: To see exactly how inscrutable they have become, I analyzed the length and readability of privacy policies from nearly 150 popular websites and apps. Facebook’s privacy policy, for example, takes around 18 minutes to read in its entirety – slightly above average for the policies I tested. The comparison is between websites...

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Judging connectedness of American communities, based on Facebook friendships

We talk about geographic bubbles a lot these days. Some areas are isolated, in their own bubble. Other areas seem more connected. Emily Badger and Quoctrung Bui for The Upshot looked at this geographic connectedness through the lens of Facebook friendships. In the millions of ties on Facebook that connect relatives, co-workers, classmates and friends, Americans are far more likely to know people nearby than in distant communities that share...

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Facebook logs calls and text messages

Woo. Woo. Alex Hern reporting for The Guardian: In at least one previous version of the Messenger app, Facebook only told users that the setting would enable them to “send and receive SMS in Messenger”, and presented the option to users without an obvious way to opt out: the prompt offered a big blue button reading “OK”, and a much smaller grey link to “settings”. Nowhere in the opt-in dialogue...

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What Facebook and Google know about you

Facebook and Google (among other companies) know a lot about you through the services you use. Dylan Curran for The Guardian provides a rundown: This information has millions of nefarious uses. You say you’re not a terrorist. Then how come you were googling Isis? Work at Google and you’re suspicious of your wife? Perfect, just look up her location and search history for the last 10 years. Manage to gain...

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Facebook still allowed race exclusion for housing advertisers

Last year, ProPublica revealed that Facebook allowed housing advertisers to exclude races in their campaigns. Facebook said they would address the issue. ProPublica returned to the topic. Facebook didn’t do a very good job. All of these groups are protected under the federal Fair Housing Act, which makes it illegal to publish any advertisement “with respect to the sale or rental of a dwelling that indicates any preference, limitation, or...

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Prophet for forecasting with a lot of data

Facebook released Prophet, which is a procedure to quickly forecast with time series data. Prophet is a procedure for forecasting time series data. It is based on an additive model where non-linear trends are fit with yearly and weekly seasonality, plus holidays. It works best with daily periodicity data with at least one year of historical data. Prophet is robust to missing data, shifts in the trend, and large outliers....

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Data Selfie: Chrome extension logs what Facebook learns about you

Facebook logs data about you and how you use their application. I know this. You know this. From there, Facebook makes inferences and serves you ads that might be relevant. Data Selfie is a Chrome extension that attempts to log similar data about you so that you can see what Facebook sees. The data stays local on your computer, and you can export it or delete it. You also get...

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