1 pointby nico7 hours ago1 comment
  • PaulHoule7 hours ago
    Calibration is a really well defined problem when you have two-classes. I've looked at the multi-class case enough to know that there aren't any completely satisfactory answers.
    • PaulHoule7 hours ago
      ... yo nico, you're writing really great comments that keep winding up [dead], go write the admins and find out what's going on!

      I spent a lot of time in the 2010s trying to revive symbolic A.I. I rejected (and still reject) the usual conclusion that knowledge base construction is too expensive, but I found the lack of a rigorous and systematic approach to dealing with uncertainty was fundamental... And boy did I learn that half-baked approaches to the problem didn't quite work!

      • nico6 hours ago
        Thank you Paul! I emailed the admins

        > I rejected (and still reject) the usual conclusion that knowledge base construction is too expensive

        This is very interesting. Even though it's not the same, I feel MS' Phi-1 is a bit of demonstration of the impact that high quality data has on training

        The cool thing vs 2010 though, is that there are so many resources and you can do so much stuff locally. I keep my M3's MPS and CPU busy most of the day and night doing training runs with models in the 800k-40M params size. And lately I've been offloading to cloud GPU too (incredible that you can get an H100 for about $2/hr). So it's a great time for individual/local research

        Would love to know more about what you've worked on before? Care to share any links?

        • PaulHoule4 hours ago
          Some of my old slide decks are here

          https://www.slideshare.net/paulahoule

          note there are some good ones on page 2. The big picture was that my biz dev guy and I believed it was possible to build a system with a feedback loop to build symbolic AI databases and that this could be applied to data integration, low/node-code and a few other business areas.

          In the midst of this whenever money got tight I would up working on neural nets for people!

          I definitely recognized you could use the same feedback loops to train and eval machine learning models and in fact the idea was these were going to integrate with the symbolic models. In 2017 I worked for a startup that was creating very similar feedback loops around CNN-based neural network models.

          What I did end up producing in that time is an ISO document describing how to use semantic web modelling for describing document formats which could have been a replacement for the system they were using for ISO 20022 -- so it felt like a second PhD when it was all said and done. I am definitely thinking of writing up a retrospective of the time because the vision makes more sense to me than it did back then and was certainly ahead of it's time... Like in 2019 I thought that "Chatbots in 2017" talk aged poorly but once ChatGPT came out it was... prophetic!

        • baderalotaibi34 hours ago
          [dead]
    • nico7 hours ago
      [dead]