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How we measured AI writing across arXiv, and where the measurement breaks

unslop.run

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Re: How we measured AI writing across arXiv, and where the measurement breaks

#23
post #3

The important question is: So what? Genuinely. I get that there may be some visceral reaction against this, but when I break it down, I mostly fail to see the problem. Seems like what is actually important is: Compared to before, when a human reads it, do they -- or society -- get something good out of it? Is it worth it to add this to the "pantheon?" If that's not what's happening enough, and if this doesn't describ…

I recently desk-rejected a paper where every single citation in its Introduction was hallucinated. That means that the entire connection between what the author(s) did and how it relates to existing research was simply made up. I've never seen this happening before AI but now there's at least one paper in every cycle pulling something similar.

My problem therefore is: we are seeing more and more papers written with tools that are known to make up facts, citations, and even entire papers. And the number of papers has increased, too. I therefore see it less as "people are being more productive" and more "people are releasing bad science much faster than we can keep up with".

Re: How we measured AI writing across arXiv, and where the measurement breaks

#24
post #3

The important question is: So what? Genuinely. I get that there may be some visceral reaction against this, but when I break it down, I mostly fail to see the problem. Seems like what is actually important is: Compared to before, when a human reads it, do they -- or society -- get something good out of it? Is it worth it to add this to the "pantheon?" If that's not what's happening enough, and if this doesn't describ…

If a human writes a given paragraph, I know it has attained a minimum level of awareness in some human mind at some point. If an AI writes a paper, I have no guarantee that it has reached that minimum. We also fear, with some reason, a correlation between AI writing and possibly being hallucinated or non-existent. Not just because AI is bad and people should feel bad for using them, but because given that a paper is somehow fake, it is probably more likely to be made with AI, and running that backwards it is reasonable to take closer looks at AI papers.

If fake papers weren't already a big problem before AI and the fields had already been policing themselves adequately, if this was already a functioning high-trust domain, maybe we could ignore this a bit more, but the fields already manifestly had problems. People taking advantage of that are reasonably more likely to use AI. The pressures to publish or perish provide the voltage and the AIs are a rather convenient path-to-ground.

I agree in some sense that if a truth is published, it doesn't matter if the AI or a human published it. However there are perfectly reasonable reasons to be concerned that AI usage is correlated to not publishing truths, especially in a world where merely being human-generated was already not an adequate check against that.

Re: How we measured AI writing across arXiv, and where the measurement breaks

#26

> If a tool marks 40% of new papers as machine-written but also marks 20% of papers written before ChatGPT existed, the real story is the 20% nobody mentioned. When 65% of the papers you read have the characteristics of being AI written, whether or not you use AI to write, your writing will be influenced by the AI style. I imagine this must be particularly the case for newbie researchers who are still developing thei…

I might be missing something but what’s the real story of the 20%.

To me it sounds like 1. Either your tool is just not that good and reliable as you thought, 2. AI is trained on human written articles, so some of that human written content informed the now established “AI slop”.

There are people who shipped “slop” before AI.

Re: How we measured AI writing across arXiv, and where the measurement breaks

#27

I scored the full text of 12,750 arXiv papers from 2021 through 2026 to find out how many of these get flagged as machine written and how much it increased since the release of chatGPT. I purposely tuned the detector to avoid false positives. My detection rate pre chatGPT is around .4% for that reason. The biggest results: in Jan of 2026 about 39% of papers got flagged as AI written. In computer science speicifcally…

this is neat! is the model available somewhere for local execution? or even a lookup table with your results for all arXiv pre-print codes? I want to run it on lots of pre-prints and I don't want to kill your server

Re: How we measured AI writing across arXiv, and where the measurement breaks

#28
Something I've thought about a lot is that there is having someone with some domain knowledge or reason to care a lot about a particular issue spend a bunch of tokens and cycles on it until something useful comes out the other end. The most obvious ones are the math problems that have been coming out and help push the frontier of various areas of math. Another example is taking all of the public NYC open data ecosystem and crunching it to get some value which I have spent a lot of time and tokens on but not found a great medium to share.

The question is just how to organize these outputs and conclusions in a way that is consistently reproducible and also how to correct errors or remove LLM nonsense where it refuses to take a position on something.

Before it made sense to do this in papers but it feels like we need something like a paper format.. that is fully reproducible ideally and optimized for aggregating knowledge in a better way. I.e. before a person spent months on one of these and there was just more filtering, and the output itself was a clear signal of time spent and effort that no longer exists.

Re: How we measured AI writing across arXiv, and where the measurement breaks

#29
post #3

The important question is: So what? Genuinely. I get that there may be some visceral reaction against this, but when I break it down, I mostly fail to see the problem. Seems like what is actually important is: Compared to before, when a human reads it, do they -- or society -- get something good out of it? Is it worth it to add this to the "pantheon?" If that's not what's happening enough, and if this doesn't describ…

Indeed. We'd likely find a similar pattern if we count spelling mistakes before and after autocorrect.
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