- Estimating the Size of a Demonstration. Shameless plug: more than 10 years ago I was part of a small team that did this as a hobby, with much simpler methods, in Spain. Our efforts are still up on El Manifestómetro.
Which political campaigns are targeting you on Facebook?. Hacker News discussion here, Guardian article here.
A tool exposing how voters are targeted with tailored propaganda on Facebook has been launched in response to what is likely to be the most extensive social media campaign in general election history.
Compas and other products with similar algorithms play a role in many states' criminal justice systems. "These proprietary techniques are used to set bail, determine sentences, and even contribute to determinations about guilt or innocence," a report from the Electronic Privacy Information Center found. "Yet the inner workings of these tools are largely hidden from public view.”
From 1816 until 2015, the algorithm correctly predicted 70.2% of the court's 28,000 decisions and 71.9% of the justices' 240,000 votes, the authors report in PLOS ONE. That bests the popular betting strategy of "always guess reverse," which has been the case in 63% of Supreme Court cases over the last 35 terms. It's also better than another strategy that uses rulings from the previous 10 years to automatically go with a "reverse" or an "affirm" prediction. Even knowledgeable legal experts are only about 66% accurate at predicting cases, the 2004 study found. "Every time we've kept score, it hasn't been a terribly pretty picture for humans," says the study's lead author, Daniel Katz, a law professor at Illinois Institute of Technology in Chicago.
[...] those keeping an eye on the dark side of the internet are deeply concerned that, seeing the benefits, cybercriminals are already fully invested in AI and are hard at work incorporating machine learning into their malware platforms.
Data Links is a periodic blog post published on Sundays (specific time may vary) which contains interesting links about data science, machine learning and related topics. You can subscribe to it using the general blog RSS feed or this one, which only contains these articles, if you are not interested in other things I might publish.
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