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Cake day: June 30th, 2025

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  • NotANumber@lemmy.dbzer0.comtoScience Memes@mander.xyzWhat would you do?
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    17 days ago

    Did you actually read what I wrote or the context behind it? I don’t think you did.

    I am saying not everyone wants to learn these things just for the sake of it. Some people want to learn the parts of maths that are more practical and want to be given practical examples. I don’t see a problem with accommodating those students or looking down on people who think that way like the original commenter was doing.

    What I am not saying is that no one should learn any maths at all. I don’t know how you got that from my comment. It’s like you are deliberately trying to misinterpret what I am saying.


  • NotANumber@lemmy.dbzer0.comtoScience Memes@mander.xyzWhat would you do?
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    17 days ago

    Did you actually read what I wrote or the context behind it? I don’t think you did. I am saying not everyone wants to learn these things just for the sake of it. Some people want to learn the parts of maths that are more practical and want to be given practical examples. I don’t see a problem with accommodating those students or looking down on people who think that way like the original commenter was doing.




  • I don’t think that’s actually true. To do AC to AC conversion at grid frequencies normally requires large inefficient transformers. A PC power supply is an example of a switch mode power supply. Basically what happens is: AC mains -> DC (at mains voltage) -> AC (high frequency, mains voltage) -> transformer -> AC (low voltage, still high frequency) -> DC (low voltage). Why do all this? Because doing the voltage conversion at grid frequency would need a much bigger transformer. They could just do the voltage conversion at grid frequency and only have to rectify once with no conversion back to ac, but it’s actually less efficient and requires more expensive hardware. So actually DC to DC conversion is more efficient, even if it means using high frequency AC in the middle. Not all switch mode supplies use this AC trick, though they do all involve switching current. buck and boost converters are used in smartphones, laptops, motherboards don’t have any transformer and are incredibly compact and efficient.The fact that many many things also need DC would be a bonus. Recitifying single phase AC at low frequency is not the most efficient thing in the world. Three phase is better, but having straight DC and only needing to change voltage would probably be best.






  • It’s not just general intelligence that people discriminate on. For example it might be decided that emotional intelligence is what’s important, and that therefore one gender must be superior because they have more. It could be aggression or resilience. There are lots of reasons why people think that men or women are better besides general intelligence. So saying that there are any biological differences becomes something that either misandry or misogyny can exploit.






  • NotANumber@lemmy.dbzer0.comtoScience Memes@mander.xyzSquiggly Boie
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    6 months ago

    To be more specific this is an MLP (Multi-Layer Perceptron). Neural Network is a catch all term that includes other things such as Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), Diffusion models and of course Transformers.

    What you are arguing online is some variant of a Generative Pre-trained Transformer, which do have MLP or MoE layers but that’s only one part of what they are. They also have multi-headed attention mechanisms and embedding + unembedding vectors.

    I know all this and wouldn’t call myself a machine learning expert. I just use the things. Though I did once train a simple MLP like the one in the picture. I think it’s quite bad calling yourself a machine learning expert and not knowing all of this stuff and more.






  • That’s another one I don’t understand. In my country at least when I grew up (born 2001) most kids didn’t get chickenpox vaccines. I didn’t have one and actually caught the virus. I think I even had a scar from it. I know someone about 4 years younger than me who also is scarred from it. Not sure if they started giving it out now. I certainly hope so.