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Cake day: June 29th, 2023

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  • People sometimes act like the models can only reproduce their training data, which is what I’m saying is wrong. They do generalise.

    During training the models are trained to predict the next word, but after training the network is always effectively interpolating between the training examples it has memorised. But this interpolation doesn’t happen in text space but in a very high dimensional abstract semantic representation space, a ‘concept space’.

    Now imagine that you have memorised two paragraphs that occupy two points in concept space. And then you interpolate between them. This gives you a new point, potentially unseen during training, a new concept, that is in some ways analogous to the two paragraphs you memorised, but still fundamentally different, and potentially novel.
















  • " Several of the researchers are associated with public security authorities in China, a fact that “voids any notion of free informed consent”, said Yves Moreau, a professor of engineering at the University of Leuven, in Belgium, who focuses on DNA analysis. Moreau first raised concerns about the papers with Hart, MGGM’s editor-in-chief, in March 2021.

    One retracted paper studies the DNA of Tibetans in Lhasa, the capital of Tibet, using blood samples collected from 120 individuals. The article stated that “all individuals provided written informed consent” and that work was approved by the Fudan University ethics committee.

    But the retraction notice published on Monday stated that an ethical review “uncovered inconsistencies between the consent documentation and the research reported; the documentation was not sufficiently detailed to resolve the concerns raised”. "

    Weird. So they had written consent forms for the blood samples, but the forms weren’t detailed enough(?), and anyway you can’t trust anyone associated with the Chinese gvmt? Is that what they’re saying?

    This seems like weird reactionary virtue signalling.