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o_guest's profile
Olivia Guest | Ολίβια Γκεστ
Olivia Guest | Ολίβια Γκεστ
Olivia Guest | Ολίβια Γκεστ
@o_guest

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Olivia Guest | Ολίβια Γκεστ

@o_guest

• goth gremlin • computational cognitive/neuroscience modeling • geek & techish Cypriot • plant aficionada • came up with #bropenscience • http://neuroplausible.com  •

Τότεναμ, Λονδίνο & Cyprus
olivia.science
Joined October 2015

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    1. Catherine D'Ignazio‏ @kanarinka 22 May 2018
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      @schock says: algorithms should not be “color blind” (equality model that works best for ppl in power). Algorithms should be just (equity model that takes history & intersectionality into account). #datajustice18pic.twitter.com/JweD79JhNi

      1 reply 24 retweets 55 likes
    2. Ryan Persson‏ @persson_ryan 22 May 2018
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      Replying to @kanarinka @o_guest @schock

      This will be harder to do, as just blindly training algorithms on various data sets won't be enough. But I think it is necessary and worth doing. Otherwise stereotypes could become entrenched in decision making and analytics algorithms and create negative feedback loops.

      1 reply 2 retweets 3 likes
    3. Ryan Persson‏ @persson_ryan 23 May 2018
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      Replying to @persson_ryan @kanarinka and

      Good example is: Let's say a machine learning algorithm is fed data and predicts possibility of defaulting on a loan. If this algorithm is just blindly fed data, it could inadvertently develop a stereotype against African Americans as a larger percentage are -

      1 reply 3 retweets 3 likes
    4. Ryan Persson‏ @persson_ryan 23 May 2018
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      Replying to @persson_ryan @kanarinka and

      likely to be lower socioeconomic status than the general population. Such a stereotype buried in a machine learning algorithm would then be self perpetuating if it were used in banks decision making processes. We need to be vigilant against such biases showing up in our software

      1 reply 1 retweet 2 likes
    5. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 23 May 2018
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      Replying to @persson_ryan @kanarinka @schock

      You don't even need an example that brings SES into it (not in any direct way at least), as demonstrated by this huge fail: https://gizmodo.com/why-cant-this-soap-dispenser-identify-dark-skin-1797931773 …

      2 replies 4 retweets 6 likes
    6. Ryan Persson‏ @persson_ryan 23 May 2018
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      Replying to @o_guest @kanarinka @schock

      I think we can define two different failure modes based on how complex a working solution would need to be. Stuff like a soap dispenser not recognizing dark skin, or facial recognition not working for non-majority ethnicities can be fixed by using more diverse training data.

      1 reply 0 retweets 2 likes
    7. Ryan Persson‏ @persson_ryan 23 May 2018
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      Replying to @persson_ryan @o_guest and

      Problems like a loan default prediction algo having an implicit bias are harder to solve, bcuz the biases the algo would develop accurately reflect the real world (i.e low SES minorities are more likely to default) But the algo ethically needs to have these biases corrected for.

      1 reply 0 retweets 2 likes
    8. Ryan Persson‏ @persson_ryan 23 May 2018
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      Replying to @persson_ryan @o_guest and

      Making the algo "raceblind" isn't enough, bcuz it would end up tracking race as a hidden variable (i.e. through home address or ethnic sounding names.) Interestingly enough, it seems like these problems would end up mirroring systematic racism in the real world.

      1 reply 0 retweets 2 likes
      Olivia Guest | Ολίβια Γκεστ‏ @o_guest 23 May 2018
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      Replying to @persson_ryan @kanarinka @schock

      Yes, they would reflect the real world descriptively but not with a real understanding of the world like a human has (or can have! Because of course some racists are real descriptive bigots).

      10:53 AM - 23 May 2018
      • 2 Likes
      • Catherine D'Ignazio Ryan Persson
      1 reply 0 retweets 2 likes
        1. Olivia Guest | Ολίβια Γκεστ‏ @o_guest 23 May 2018
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          Replying to @o_guest @persson_ryan and

          I completely agree with you.

          0 replies 0 retweets 1 like
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