timshell

5 ms·

1.
Silicon Valley Is Not Ambitious Enough(mayank-agrawal.com)
5 points by timshell 21d ago|1 comments
2.
Proof of Human (YC S23) Is Hiring a Member of Technical Staff(ycombinator.com)
1 points by timshell 27d ago
3.
by timshell 2mo ago
I think many cognitive scientists think language is a core part of human cognition, and that LLMs were a major advance in AI/cognitive science due to connecting AI algorithms with language production, but LLMs aren’t considered (or eve
4.
by timshell 2mo ago
This was the core premise behind my research during grad school and beyond. My favorite project — which ultimately became my dissertation — was a proposal to connect reinforcement learning algorithms, neuronal data, psychological behavior,
5.
by timshell 3mo ago
My team has been working on this in the concept of Turing Test and human vs. AI discrimination: https://arxiv.org/pdf/2605.06524 Specifically, our approach is to separate classic output-based approaches (CAPTCHAs, fing
6.
by timshell 4mo ago
> In that case you could just add a login form This is the product insight. We're not going to deploy Stroop tasks for authentication :)
7.
by timshell 4mo ago
Thanks all for the discussion! Would like to highlight two parts that maybe didn't come fully through, and we'll work on making this clearer: 1. CAPTCHAs can still detect AI agents...if you know where to look. Most commercial CAPT
8.
by timshell 4mo ago
I mean, their CAPTCHAs presumably have tons of data collected over the years, and they can't detect a pretty clear AI agent here: https://www.youtube.com/watch?v=UeTpCdUc4Ls
9.
by timshell 4mo ago
Yeah, we benchmarked against a few bot detection provides end of last year ( https://research.roundtable.ai/bot-benchmarking/ ), and Turnstile didn't do great when it came to AI agent detection. We hypothesized that
10.
by timshell 4mo ago
This is relatively close to our conclusion from the paper: unless agents are specifically trained for the task and know all the information ahead of time, they're not able to generalize from one cognitive CAPTCHA to another
11.
CAPTCHAs can still detect AI agents(research.roundtable.ai)
84 points by timshell 4mo ago|72 comments
12.
Omaha as Judgment Day for AGI(mayankagrawalphd.substack.com)
2 points by timshell 4mo ago|0 comments
13.
Proof of Human as a research agenda, not a product feature(mayankagrawalphd.substack.com)
2 points by timshell 4mo ago|0 comments
14.
Why I Turned Down a Tenure-Track Professorship(mayankagrawalphd.substack.com)
1 points by timshell 5mo ago|0 comments
15.
A Guide to the AI Tribes(micheljusten.substack.com)
2 points by timshell 6mo ago|0 comments
16.
The Cartel: the talent was always there, the market access wasn't(mayankagrawalphd.substack.com)
3 points by timshell 6mo ago|0 comments
17.
by timshell 6mo ago
My grad school research was on computational models of human/machine cognition, and I'm now commercializing it as a 'proof-of-human API' for bot detection, spam reduction, and identity verification. One of the mistakes p
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The Most Interesting Fund in the World(mayankagrawalphd.substack.com)
2 points by timshell 6mo ago|0 comments
19.
Notes from the trough of sorrow: why we killed our own product
3 points by timshell 6mo ago|0 comments
20.
by timshell 8mo ago
https://mayank-agrawal.com/
21.
by timshell 9mo ago
https://research.roundtable.ai/bot-benchmarking/ :)
22.
by timshell 9mo ago
Yup! It depends on your use case. Cloudflare is really good at network bot detection. Rate-limiting is super helpful here, for example during DDoS attacks. Our customers are a little different. They sometimes struggle with high-volume bot a
23.
by timshell 9mo ago
Check out a demo of a similar tool we created ( https://model-guessr.com/ ) that was bot-gated by Roundtable Proof of Human. Happy to talk more details about PoH (disclaimer: I'm a cofounder and this is my YC S23 company
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Roundtable (YC S23) Is Hiring Two Sales Development Representatives (SDRs)(ycombinator.com)
1 points by timshell 10mo ago
25.
by timshell 10mo ago
The 'Process Turing Test' extends the CAPTCHA from 'What would a reasonable person click' to 'How would a reasonable person click'. For example, hesitation/confusion patterns in CAPTCHAs are different betw
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by timshell 10mo ago
Yeah, we've looked at it in the context of reCAPTCHA v3 and 'invisible behavioral analysis': https://www.youtube.com/watch?v=UeTpCdUc4Ls It doesn't catch OpenAI even though the mouse/click behavior
27.
by timshell 10mo ago
One of the writers here. We believe the real Turing Test is whether your AI performs a CAPTCHA like a human would/does.
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Why behavior beats device and network in bot detection (benchmarks inside)(research.roundtable.ai)
3 points by timshell 1y ago|0 comments
29.
by timshell 1y ago
I think about this as a startup founder building a 'proof-of-human' layer on the Internet. One of the hard parts in this space is what level of transparency should you have. We're advancing the thesis that behavioral biometri
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Humans experience cognitive fatigue to go offline and replay memories [pdf](swh.princeton.edu)
5 points by timshell 1y ago|0 comments

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