It's not like anyone is forcing the students to participate. If someone of voting age wants to engage someone on policy positions, then they accept the consequences. Likewise, if someone wants to engage with voters, then a college campus is a perfectly legitimate location.
> Existing mitigation approaches often degrade performance on open-ended generation and downstream tasks, limiting their practical utility. [...] Unlike continuous reward schemes, our approach assigns a reward of one only when the model's output is entirely factually correct, and zero otherwise.
Someone correct me if I am wrong, as I'm am on the very edge of this space looking in, but does this mean that they are using a "degraded performance with fewer hallucinations" model to fact check the "more powerful yet prone to hallucinations" model?
My understanding is no, they are collecting a cache of documents from the training set, then after pre-training prompt about those topics. A separate verifier is given both the relevant source documents and generated response, and tasked with checking for conflicts in factuality.
They describe using Qwen 32B as the verifier, and the model under training is Qwen 8B. So in fact the verifier is beefier than the trainee model, though it's unclear if that has to be the case as you scale up.
Also on the edge, but it appears they are relying on the search-augmented identification of conflicts in the generated statement, which is an easier task than constructing an answer to the question. It also encourages abstention because there are no conflicts in “I don’t know” (so “mitigating hallucinations” and “answering more questions correctly” are not necessarily the same thing)
Ironically, I love using em dashes in my writing, but if I ever have to AI generate an email or summary or something, I will remove it for this exact reason.
For a standard globe that you might see in a classroom, the Earth's atmosphere is about as thick as the paper glued to the outside that displays the map.
That didn't sound right to me, and so I checked it as follows:
Estimate for a standard classroom globe at 13" in diameter (I'm seeing a rnage of 12-14 inches as typical). I'm reporting in inches because that is what came up first and most of the globes are for sale in the US. Mixing units here, but, it works out.
But, in meters, the diameter of the Earth is 12,742,000 m on average. if we use the 'Karman line' as defining the edge of what the atmosphere is, that is 100,000 meters. Solving for X ... (13" / 12742000 m)=(X / 100,000 m). gives us an atmosphere thickness of approximately 0.1". -----
Paper glued to the globe would have a thickness of maybe, 0.004" (thin paper) to 0.012" (like a card stock paper).... so that analogy is off by an order of magnitude or more.
Even if you use the mesosphere as the definition for the top of the atmosphere, that is still 85,000 meters and thus similar.
People can check the numbers I used.
* Perhaps the analogy should go more like: the thickness of the cardboard sphere the globe is made out of is about the thickness of the atmosphere. Because, having completely destroyed a globe once in my youth, I remember the cardboard shell being approximately a tenth of an inch thick. But, that's maybe not a great reference for the analogy because not everyone has cut apart a classroom globe....
If I recall correctly... my very first post on Reddit was doing calculations for a (practically immortal) person eating beans and storing the flatus for a trip to the moon (searching shows that this is a not-infrequent request). It was only concerned with quantity - not storage or the engine.
... and the source document for the numbers was based on a paper that is fairly easy to find given the proper keywords in google search... https://pubmed.ncbi.nlm.nih.gov/1648028/ (and I learned that methane more rare in flatus than not).
Did you account for the weight of storage? Because I would think the tyranny of the rocket equation for such a low ISP would cause various levels of impossibility, not to mention the problem of getting enough thrust.
I think the scale was on the hundreds of thousands of years. We're dealing with 700 ml of hydrogen and 70 ml of methane at standard pressures and scaling this up to 90,000 kg of hydrogen and 635,000 kg of kerosene (with the 1:1 methane).
I wonder how standard this globe size is. My mental one is the one we had at home that was about 15" in diameter I'd guess.
Another comment talks about atmosphere being a 1 mm layer on a grapefruit... so definition of atmosphere extents might be different in these two anecdotes.
(edit: I submitted this comment two minutes after another comment did the math on the globe/paper layer version...)
I suspect that they are trying to recreate the experience of bumping into someone they know. Since the destruction of third-spaces, it is increasingly unlikely that you'll serendipitously interact with someone in an unplanned, but welcome, social environment. Leaving your location on for friends and family in this way signals something close to "If you see me, say hi". Whereas announcing "I will be at X for Y time" is a bit more heavy handed. And just knowing that isn't sufficient to actually act on the information, you still have to reach out and plan something unless you are an granular as the actual building you are in, which feels weird. It feels a little intrusive to constantly be announcing my location. Like "Hey! Hey! obk0943t! I'm gonna be in NYC just so you know!" If I just left my location on, then /if/ you care, you can find out. But if you don't, you are not interrupted with the information. Finally, posting leaves a record, whereas location sharing is always "right now". Sure, someone can use that to construct a timeline, but that takes effort on their part (and possibly malice).
The short version is that its in limited supply, it has luxury value (think jewelry or artisan crafting), and its doesn't corrode. So it's a supply and demand issue. There is basically always the same amount, kings want it, and it doesn't ever disappear.
It s superior to currency because while (for example) the US dollar will always have value as long as you pay taxes with it, there is not a limited supply
It is superior to bartering because while (for example) a chicken has value due to its utility as food, it naturally disappears (because you ate it or it died).
Gold and other precious metals sort of sit in the middle ground as the "next best thing" to almost everything that humans want. So it remains a useful means of preserving and communicating value.
Many years ago when I had an iphone I would set text vibrations to be the morse code of the first letter of someone's name so I knew who messaged me without looking. That's the only feature I still miss to this day with my android.
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