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throwaway849755 commented on Observation of zero resistance above 100 K in Pb₁₀₋ₓCuₓ(PO₄)₆O   arxiv.org/abs/2308.01192... · Posted by u/segfaultbuserr
kurthr · 2 years ago
Well, it's at a 1mA test current (I'm assuming a 4 point probe to mitigate contact resistance) so 10u Ohm would give a 10nV DC signal. That's a pretty small voltage signal and comparable to a fairly standard chopper stabilized instrumentation amp rms noise at room temp near DC.

I'm not sure whether higher currents are all that reasonable. Cooling the precision amp is an option to reduce the noise figure, but at that point you'll want optical isolation and battery supply too.

https://www.analog.com/media/en/training-seminars/tutorials/...

throwaway849755 · 2 years ago
A comment above says they are using https://www.qdusa.com/products/ppms.html with the DC 4-wire option.

All my instincts would prefer they were using the AC 4-wire option, given any reason to question results, and/or issues with contact effects, etc.

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throwaway849755 commented on Experts starting to doubt AI ‘hallucinations’ will go away: ‘This isn’t fixable’   fortune.com/2023/08/01/ca... · Posted by u/cratermoon
TillE · 2 years ago
Both are anthropomorphizations, implying some kind of "thought" process which doesn't exist.

The generated text is wrong, false, inaccurate. I don't think we really need a jargon-y term for it.

throwaway849755 · 2 years ago
Perhaps with both 'hallucination' and 'confabulation' there are suggestions of both thought and absence of thought. The former suggestions are likely anthropomorphic. Suggesting some seamless lack of thought might not be?
throwaway849755 commented on Experts starting to doubt AI ‘hallucinations’ will go away: ‘This isn’t fixable’   fortune.com/2023/08/01/ca... · Posted by u/cratermoon
cratermoon · 2 years ago
Yes, 100% agree. See <https://universeodon.com/@siderea/109883198218504351> for some thoughts. I think we're stuck with the term 'hallucination' in most usage, if for no other reason than cognitive sloth.
throwaway849755 · 2 years ago
Good link. And perhaps to be even less misleading above, LLM Confabulation. As another comment says, not fixable within the LLM.
throwaway849755 commented on Experts starting to doubt AI ‘hallucinations’ will go away: ‘This isn’t fixable’   fortune.com/2023/08/01/ca... · Posted by u/cratermoon
mindcrime · 2 years ago
Well, I agree with your general sentiment to a point, but I would say that in the lexicon of the day, "AI" and "LLM" are not synonymous. LLM's are one (current very popular and useful) approach to AI, but only a VERY casual observer would conflate the two terms as being completely equivalent. To me, it goes without saying that the world of AI is bigger than just LLM's.

But since we're talking about an article in Fortune, maybe it's fair to think of this strictly from a lay-person perspective.

Also, to the extent that it matters, I'm not necessarily saying "build something (completely) different than an LLM". I can picture a world with systems that include LLM's that interoperate with other components that do more of the "world model" and "commonsense reasoning" parts, yielding an aggregate system that does more/better than any of the parts could do in isolation.

throwaway849755 · 2 years ago
From 2008 there was How to Build a Person by John Pollock. I don't recall whether he included some putative "explainer" disciplined by other components.
throwaway849755 commented on Experts starting to doubt AI ‘hallucinations’ will go away: ‘This isn’t fixable’   fortune.com/2023/08/01/ca... · Posted by u/cratermoon
throwaway849755 · 2 years ago
I believe a more accurate term would be AI confabulation.

When one confabulates, one shamelessly inserts words which sound smooth and grammatical and potentially acceptable to a listener (and the speaker), but shamelessly with no hesitation or corrections to achieve actual truth.

I suspect there needs to be some layering on of reflection and inhibition to avoid this.

throwaway849755 commented on LK-99: The live online race for a room-temperature superconductor   forums.spacebattles.com/t... · Posted by u/fofoz
throwaway849755 · 2 years ago
Is there any HN effect by which enough contrary early opinion here could increase the odds of eventual triumph?

On the chance that there is, I will do my part:

In mice.

u/throwaway849755

KarmaCake day37July 31, 2023View Original