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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

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    1. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @zeynep @benedictevans and

      Plus, ML will allow us to classify and optimize at scale, and be better at it than humans potentially, but opaquely... Humans hire from alumni network, have gender/race biases in hiring and are credentialist. What is ML going to weed out? Don't even know where to begin to look.+

      2 replies 1 retweet 19 likes
    2. Benedict Evans‏Verified account @benedictevans 18 Nov 2018
      Replying to @zeynep @stevesi @qhardy

      You keep making this assertion. I keep pointing out why it’s flawed. This would be a more productive conversation if you could respond to that.

      2 replies 0 retweets 2 likes
    3. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @benedictevans @stevesi @qhardy

      When we take formal rules and put them in a database (say the CA immigration system: it adds points. Doesn't matter by hand or computation) or even when we automate a fairly well-understood system (flying) we have ways of debugging/troubleshooting that we don't have for ML. +

      1 reply 0 retweets 5 likes
    4. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @zeynep @benedictevans and

      So the Q is: do you think we will have explainable/interpretable AI? I'm on the this doesn't seem anymore likely than using brain scans to understand humans. ML is classification that works not via rules we wrote (not Symbolic/Minsky style code). That really is different! +

      2 replies 0 retweets 11 likes
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    6. Quentin Hardy‏Verified account @qhardy 18 Nov 2018
      Replying to @stevesi @zeynep @benedictevans

      One can also write a supra program that looks at results and tags, and reports anomalies, or things society deems are biases. Frequently, the problem with ML may be the mirror it holds up to us.

      1 reply 0 retweets 4 likes
    7. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @qhardy @stevesi @benedictevans

      Only for obvious variables like race/gender which we know to look for. That's why there is so much reporting on that. Familiar ground. But ML will detect and discriminate things we could not previously detect, will not even think to check for. No variable list to run against.

      1 reply 3 retweets 22 likes
    8. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @zeynep @qhardy and

      I think the current convo on AI/ML is what if it is wrong in the sense it reflects the biases in the training data which are often structural biases in human societies. I'm asking something different: what if it works, and detects something we previously could not—not at scale.

      1 reply 5 retweets 20 likes
    9. zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @zeynep @qhardy and

      And it's opacity means that we don't even know whatever latent thing it's using to classify. Instead of not hiring based on race, it's not hiring based on propensity to depression—and nobody knows that's what it's doing. No variable labeled "prop_depression". Just a giant matrix.

      5 replies 0 retweets 28 likes
    10. Nicolas Saunier‏ @nicolas_saunier 18 Nov 2018
      Replying to @zeynep @qhardy and

      We do know the input to any ML model. The problem is that the decision may be correlated to such things we don't know we can detect. But it's not a black box, at least not in the sense that we cannot study it's response to known inputs and compare to expected outputs.

      1 reply 0 retweets 1 like
      zeynep tufekci‏Verified account @zeynep 18 Nov 2018
      Replying to @nicolas_saunier @qhardy and

      But you don't know which of the million outputs matter, how, and if they group and correspond to latent variables that you don't even know to look for because it's not an input by itself. The construct ML is using may not even yet exist in human understanding but be predictive.

      6:27 PM - 18 Nov 2018
      1 reply 0 retweets 1 like
        1. Thicc first layer‏ @brisance 19 Nov 2018
          Replying to @zeynep @nicolas_saunier and

          For the winning algorithm in Netflix Prize where they did exactly what you said, it seems the authors were able to explain how it works. 🤷🏻‍♂️

          0 replies 0 retweets 0 likes
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