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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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    zeynep tufekci‏Verified account @zeynep 22 Jun 2016

    Absolutely unacceptable. Algorithms used in sentencing CANNOT be proprietary & secret. No. http://www.nytimes.com/2016/06/23/us/backlash-in-wisconsin-against-using-data-to-foretell-defendants-futures.html …pic.twitter.com/WlNpGK4JaH

    12:44 PM - 22 Jun 2016
    • 1,818 Retweets
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    • nickname All The Mikes Olalere Mao plopplop Devon Carmean Techie Nites Karson E­lfreda Peters Aleesha Chris dani
    55 replies 1,818 retweets 1,647 likes
      1. New conversation
      2. zeynep tufekci‏Verified account @zeynep 22 Jun 2016
        Replying to @zeynep

        Sometimes, there's a case for opaque algorithms so that it is harder to game it. For sentencing & parole? No. BASIC RIGHT to cross-examine.

        3 replies 46 retweets 95 likes
      3. dcg1114‏ @dcg1114 22 Jun 2016
        Replying to @zeynep

        Fundamental violation of right of confrontation in the Sixth Amendment. Yes, I am an ex-Prosecutor...

        2 replies 5 retweets 7 likes
      4. Show replies
      1. suldrew‏ @suldrew 22 Jun 2016
        Replying to @zeynep

        @alevin that is a clear violation of the sixth amendment

        0 replies 1 retweet 6 likes
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      1. AJ Witt‏ @kil0ran 22 Jun 2016
        Replying to @winjer @zeynep @ftrain

        nope, as fingerprint analysis is challengeable in court and breathalysers need a 2nd sample for confirmation

        0 replies 1 retweet 3 likes
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      1. New conversation
      2. zeynep tufekci‏Verified account @zeynep 22 Jun 2016
        Replying to @hyonschu

        Courts/judges can be biased; it may be a good idea to carefully add computation to balance human biases. But not like this, no.

        3 replies 2 retweets 15 likes
      3. Clive Thompson‏Verified account @pomeranian99 22 Jun 2016
        Replying to @zeynep

        This is a good way of framing it. If the code were open source and methods of data collection/scrubbing audited, it could be ...

        0 replies 0 retweets 1 like
      4. End of conversation
      1. zeynep tufekci‏Verified account @zeynep 22 Jun 2016
        Replying to @hyonschu

        Many are. This stuff isn't. Check this. Why did it take Propublica to run super basic tests on the system? https://www.propublica.org/article/machine-bias-risk-assessments-in-criminal-sentencing …

        0 replies 4 retweets 9 likes
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      1. New conversation
      2. Craig Stuntz‏ @craigstuntz 22 Jun 2016
        Replying to @zeynep

        IANAL, but wouldn't this have to be a Brady disclosure if used in sentencing? I guess that's why court tossed, but seems obvious?

        1 reply 0 retweets 0 likes
      3. Craig Stuntz‏ @craigstuntz 22 Jun 2016
        Replying to @craigstuntz @zeynep

        I misread, should be "referred" instead of "tossed."

        1 reply 0 retweets 0 likes
      4. Show replies
      1. New conversation
      2. Alper Sarikaya‏ @yelperalp 22 Jun 2016
        Replying to @zeynep

        and with a AUC (nominally, accurracy) of no better of 0.75, it's wrong at least 25% of the time. http://www.northpointeinc.com/downloads/research/Creating-Risk-Scores-in-Very-Imbalanced-Datasets.pdf … (pdf link)

        3 replies 0 retweets 2 likes
      3. Alper Sarikaya‏ @yelperalp 22 Jun 2016
        Replying to @yelperalp @zeynep

        though probably not right to call AUC of an ROC curve accuracy, it does call into question how sensitivity and fall-out are balanced

        1 reply 0 retweets 0 likes
      4. Show replies

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