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fdupress commented on Microsoft-backed UK tech unicorn Builder.ai collapses into insolvency   ft.com/content/9fdb4e2b-9... · Posted by u/louthy
ath3nd · 3 months ago
Is it though?

Where are blockchains widely used nowadays, pray tell?

fdupress · 3 months ago
Transparency logs like [Certificate Transparency](https://datatracker.ietf.org/doc/html/rfc6962) use permissioned chains (and other things) to distribute trust in the internet public key infrastructure.

That's all I can think of, though.

fdupress commented on Reviewing the cryptography used by Signal   soatok.blog/2025/02/18/re... · Posted by u/todsacerdoti
fdupress · 6 months ago
The "keyed SHA-256" in key transparency's leaf_hash is ok in its current state, but limits future evolution (or presents a risk if that evolution is not done carefully): SHA-256 is subject to length extension.

I could not follow where the leaf_hash is used carefully enough to figure out exactly how dangerous this is in the broader context and taking future evolution into account. But it's clearly safe as it is used now because all expected inputs have the same length.

fdupress commented on Asynchronous Consensus Without Trusted Setup or Public-Key Cryptography   eprint.iacr.org/2024/677... · Posted by u/simonpure
chc4 · a year ago
In case you haven't seen, there was actually a quantum algorithm on preprint recently for solving some class of learning with errors problems in polynomial time. https://eprint.iacr.org/2024/555
fdupress · a year ago
And since you apparently haven't seen, the abstract now includes the following note.

> Note: Update on April 18: Step 9 of the algorithm contains a bug, which I don’t know how to fix. See Section 3.5.9 (Page 37) for details. I sincerely thank Hongxun Wu and (independently) Thomas Vidick for finding the bug today. Now the claim of showing a polynomial time quantum algorithm for solving LWE with polynomial modulus-noise ratios does not hold. I leave the rest of the paper as it is (added a clarification of an operation in Step 8) as a hope that ideas like Complex Gaussian and windowed QFT may find other applications in quantum computation, or tackle LWE in other ways.

fdupress commented on The right not to be subjected to AI profiling based on publicly available data   link.springer.com/article... · Posted by u/tokai
fdupress · a year ago
Yes, and surely the right to not be profiled on publicly available data is already enshrined in GDPR?
fdupress · a year ago
Self-response: the article does consider this (section 6), argues that the exceptions to restrictions on the use of publicly available data in GDPR are exactly in places where it makes sense to prevent AI usage, and further argues it makes sense to consider AI profiling a more severe breach because of the higher potential for harm.
fdupress commented on The right not to be subjected to AI profiling based on publicly available data   link.springer.com/article... · Posted by u/tokai
personjerry · a year ago
Surely the issue in "AI profiling" is "profiling" not "AI"?
fdupress · a year ago
Yes, and surely the right to not be profiled on publicly available data is already enshrined in GDPR?
fdupress commented on Kyber   pq-crystals.org/kyber/... · Posted by u/tosh
bjoli · 2 years ago
They use it for key exchange. That removes the part that quantum computing will break easily.

AES is still safe. It is a replacement for public key crypto schemes, like Ed25519.

fdupress · 2 years ago
You might want to clarify that "It" in the last sentence is Kyber/ML-KEM.
fdupress commented on Citation cartels help mathematicians-and their universities-climb the rankings   science.org/content/artic... · Posted by u/pseudolus
abdullahkhalids · 2 years ago
Your claim about applied fields is not correct. When you do your research, you survey what other people have done in some subarea. You determine what has not been done. And then you do it.

When you write your paper you say exactly this in the introductory context. Here is what other people have done, here is a problem not yet solved in this area, we solve it. It saves the reader an enormous amount of time by not having to do a literature review themselves to see how the paper fits into the larger thrust of the field, and what the novelty is.

How can you justify the novelty other than by comparing to other people's work?

fdupress · 2 years ago
Sorry, just saw this.

Which claim do you disagree with? The claim that the trend I describe exists, or the fact that it is bad?

Note that what you describe is what I advocate: you explain that the question exists and hasn't been answered. This is not an argument that is based on the volume of work that exists.

It is also an argument you cannot (as an author) be trusted to make. Even if you cite everything that has been published that is tangentially related to your claimed contribution, there is no way a reviewer will know all of it, and no way a reviewer will be able to go and read all of it. So they can't determine whether your claim of novelty is correct unless they already know the entire field. The only defense against this is to encourage crisp and clear descriptions of claimed contributions (to knowledge or practice) and violently reject any overinflated claims. It is not to include an entire survey paper in the introduction of every piece of work that pushes the state of the art forward.

It does mean that the average paper is less accessible to the non-expert. It also encourages the regular publication of surveys whose role is solely to critically and exhaustively compare recent advances, and of textbooks whose role is to describe historic developments and their context. This is not something every paper should be doing.

fdupress commented on Citation cartels help mathematicians-and their universities-climb the rankings   science.org/content/artic... · Posted by u/pseudolus
canadiantim · 2 years ago
Qualifications of truth are often written into the paper too tho, so e.g. in biology paper people will cite studies, but then explain their mitigating circumstances and context and how they need to be balanced with other studies.

So while I agree that generally citations are a statement of claim and the reference given allows people to see if that statement of claim is actually supported, within the paper itself good authors also explicitly weigh the "truth value of a proposition".

fdupress · 2 years ago
You're arguing against practice in mathematics based on practice in an empirical field, though. Truth in biology is fuzzy in a way truth in most mathematical fields is not.
fdupress commented on Citation cartels help mathematicians-and their universities-climb the rankings   science.org/content/artic... · Posted by u/pseudolus
michaelt · 2 years ago
Academic papers often include an introduction which summarises the context in which the paper is written. Consider https://arxiv.org/pdf/2201.03545v2.pdf where the paper says "For many decades, this has been the default use of ConvNets, generally on limited object categories such as digits [43], faces [58, 76] and pedestrians [19, 63]. Entering the 2010s, the region-based detectors [23, 24, 27, 57] further elevated ConvNets to the position of being the fundamental building block in a visual recognition system."

This shows the authors are familiar with the field, avoids inadvertent plagiarism, allows them to make it clear precisely how their contribution contributes to knowledge, shows people from funding bodies that this is a cutting edge and important field of research, and points readers in the right direction if they want to see earlier ideas, or ideas in a more applied context.

If among those 92 citations should be a few papers from your boss and your colleagues, nobody will see that as unusual - as long as they're at least marginally relevant.

fdupress · 2 years ago
This is a lot less true in mathematics research, where a question existing and not being trivial is enough motivation to investigate.

I would in fact argue that the trend, in "applied" fields, of justifying the importance of a piece of work by pointing out that a lot of people are doing similar work is in fact self-fulfilling. That makes it somewhat useless as a measure of importance.

Scientific context should be critical, not just descriptive.

u/fdupress

KarmaCake day97September 1, 2019
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