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AnimaAnandkumar's profile
Prof. Anima Anandkumar
Prof. Anima Anandkumar
Prof. Anima Anandkumar
@AnimaAnandkumar

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Prof. Anima Anandkumar

@AnimaAnandkumar

Director of #AI #research @nvidia, Bren #Professor @Caltech, Fmr Principal scientist @awscloud #Sloan fellow #Tensors Erdos #2 #dancer http://anima-ai.org 

Santa Clara, CA
tensorlab.cms.caltech.edu/users/anima/
Joined October 2014

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    1. Prof. Anima Anandkumar‏ @AnimaAnandkumar 7 Dec 2019
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      Prof. Anima Anandkumar Retweeted Yann LeCun

      I disagree. It's difficult to understand and fix bias through #AI algorithms for #DeepLearning These are highly non-linear blackbox models. they amplify biases. many works show that trying to fix superficially is like putting lipstick on a pig. We need fresh thinkinghttps://twitter.com/ylecun/status/1203211859366576128 …

      Prof. Anima Anandkumar added,

      Yann LeCun @ylecun
      People are biased. Data is biased, in part because people are biased. Algorithms trained on biased data are biased. But learning algorithms themselves are not biased. Bias in data can be fixed. Bias in people is harder to fix. https://www.nytimes.com/2019/12/06/business/algorithm-bias-fix.html#click=https://t.co/lkLEpfDwF9 …
      33 replies 182 retweets 701 likes
      Show this thread
    2. Prof. Anima Anandkumar‏ @AnimaAnandkumar 7 Dec 2019
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      Prof. Anima Anandkumar Retweeted Prof. Anima Anandkumar

      In a recent work we report an intriguing finding to detect bias : assess hardness of different samples for #DeepLearning model. It's a first step. Using it to fix bias is much harderhttps://twitter.com/animaanandkumar/status/1203090855097057280 …

      Prof. Anima Anandkumar added,

      Prof. Anima Anandkumar @AnimaAnandkumar
      Intriguing measure of #bias in #DeepLearning We find angular distance as a robust + universal measure of hardness of a training example and corresponds with human ambiguity. @beidichen @animesh_garg @jankautz @NvidiaAI https://twitter.com/Deep__AI/status/1203028047651205120 …
      Show this thread
      3 replies 6 retweets 64 likes
      Show this thread
    3. Prof. Anima Anandkumar‏ @AnimaAnandkumar 7 Dec 2019
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      More importantly our work shows that #DeepLearning model is deciding which samples are hard for it to classify and introducing bias. Here I use bias to mean disparate treatment not statistical bias. Model leaves harder example with worse accuracy and more vulnerability to noise

      1 reply 2 retweets 42 likes
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    4. Prof. Anima Anandkumar‏ @AnimaAnandkumar 7 Dec 2019
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      So which #DeepLearning model you choose changes the bias introduced. We show that older models like Alexnet are worse compared to newer models like resnet. So that's a good thing. @BeidiChen @Anshumali_ @animesh_garg @jankautz @NvidiaAI

      1 reply 1 retweet 38 likes
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      Prof. Anima Anandkumar‏ @AnimaAnandkumar 7 Dec 2019
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      It's important for our #AI leaders to acknowledge that #DeepLearning makes it harder to deal with bias. Models themselves introduce bias. It's important for our leaders not to be so dismissive of deep work happening in this area. They should listen and learn from others.

      7:39 PM - 7 Dec 2019 from Richmond, British Columbia
      • 8 Retweets
      • 67 Likes
      • GamingMind Rachit Bansal ADAS Development Pro ingrid brady Dan Gavrila Carla Vieira Shubham Singh Devan Becker Violeta Damjanovic-Behrendt
      5 replies 8 retweets 67 likes
        1. Vijay Singh‏ @bijouvj 7 Dec 2019
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          Replying to @AnimaAnandkumar

          Do they introduce bias, or as you said before, they amplify the bias present in the data? If it’s the former, I would appreciate if you could point me to some work on this.

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        2. sinaptica‏ @_sinaptica 8 Dec 2019
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          Replying to @AnimaAnandkumar

          We induce our subjectivity to #AI entities, and in our opinion, we aren't sure that it is something entirely wrong, it's the base of intelligence.

          1 reply 0 retweets 0 likes
        3. sinaptica‏ @_sinaptica 8 Dec 2019
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          Replying to @_sinaptica @AnimaAnandkumar

          #simulation We ignore the truly significant, we consider it a problem and it is, in our opinion, the opposite.pic.twitter.com/LNbAeolrHs

          0 replies 0 retweets 0 likes
        4. End of conversation
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        2. Log Odds-Ratio‏ @DrLukeOR 8 Dec 2019
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          Replying to @AnimaAnandkumar

          Isn't Yann talking about social bias, like racial or gender disparity in ML outcomes? The bias you reportt is totally real, but has no reason to equate to recognisable social bias (vs other random bias). Or are you saying that social bias is consistently identified by hardness?

          1 reply 0 retweets 0 likes
        3. Prof. Anima Anandkumar‏ @AnimaAnandkumar 8 Dec 2019
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          Replying to @DrLukeOR

          The two are related certainly, and further research needs to be done to understand it.

          1 reply 0 retweets 3 likes
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        1. Jim Kleban‏ @jtk 8 Dec 2019
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          Replying to @AnimaAnandkumar

          Thank you ! A good reminder not to downplay the effects of the decision making in ensuring fairness. Is it accurate to say that any decision criteria is potentially biased (adds disparate treatment), including ones that aren’t learned, and the work is to understand and mitigate?

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        1. Anders Schneiderman‏ @raschneiderman 9 Dec 2019
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          Replying to @AnimaAnandkumar

          And as you & others have said, this is another ex of why diversity in tech is so crucial — if AI leaders were more diverse & had to frequently deal w bias, black box models would’ve been a nonstarter

          0 replies 2 retweets 6 likes
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