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The Art of PHP – My CTF Journey and Untold Stories

https://phrack.org/issues/72/5_md#article
1•mooreds•39s ago•0 comments

What makes bruises change color over time

https://www.the-scientist.com/what-makes-bruises-change-color-over-time-73383
1•bookofjoe•1m ago•0 comments

Salary and Occupation

https://flowingdata.com/2025/09/09/salary-and-occupation-2024/
1•surprisetalk•1m ago•0 comments

Prizes of $1M awarded for democracy studies and advances in treating leukemia

https://apnews.com/article/balzan-prizes-2025-ober-june-42425b1cf2435d1079af2d8fc880c516
1•wiry•2m ago•0 comments

The Rotten Economics of Transit in America

https://www.youtube.com/watch?v=eQ3LSNXwZ2Y
1•outrun86•2m ago•0 comments

350k UK households on low-interest fixed-rate mortgages set to increase

https://www.theguardian.com/money/2025/sep/09/shock-in-store-for-350000-uk-households-on-low-inte...
1•sarreph•2m ago•0 comments

Chemistry in Ryugu Asteroid Samples Revealed by Non-Invasive X-Ray Microanalyses

https://www.mdpi.com/2076-3263/14/4/111
1•PaulHoule•3m ago•0 comments

Harvard Funding Cuts Endanger Fruit Fly Database That Powers Genetic Research

https://www.thecrimson.com/article/2025/9/9/flybase-funding/
1•chapulin•3m ago•0 comments

At 33, Baby on the Way, No Plan: How I Became a Developer

https://www.dowe.app/blog/at-33-baby-on-the-way-no-plan
1•ospehlivano•4m ago•0 comments

Action Is All You Need: Dual-Flow Generative Ranker 4× Faster and More Accurate

https://www.shaped.ai/blog/action-is-all-you-need-dual-flow-generative-ranking-network-for-recomm...
1•semi_sentient•4m ago•0 comments

JWST-Secondary Atmosphere Constraints for the Habitable Zone Planet Trappist-1 E

https://arxiv.org/abs/2509.05407
1•bikenaga•5m ago•0 comments

Mosaic: A novel optical link technology based on MicroLED [pdf]

https://www.microsoft.com/en-us/research/wp-content/uploads/2025/08/benyahya25mosaic.pdf
1•wuxb•5m ago•1 comments

Early prototype: lowering the barrier to 3D animation

https://hyperboard.io/demo
1•mansurtsutiev•5m ago•0 comments

The Value of Bringing a Telephoto Lens

https://avidandrew.com/telephoto.html
1•freediver•6m ago•0 comments

Automated Red Teaming for AI-Induced Psychosis

https://github.com/tim-hua-01/ai-psychosis
1•diggan•7m ago•0 comments

Microsoft sets new RTO policy, requiring employees in the office 3 days per week

https://www.geekwire.com/2025/microsoft-sets-new-rto-policy-requiring-employees-in-the-office-3-d...
2•fingerlocks•7m ago•0 comments

Buffett: Inflation swindles the equity investor (1977)

https://fortune.com/article/buffett-how-inflation-swindles-the-equity-investor-fortune-classics-1...
1•Anon84•8m ago•0 comments

Microsoft Mandates a Return to Office

https://www.theverge.com/report/774414/microsoft-return-to-office-policy-announcement
2•BoumTAC•8m ago•0 comments

South Koreans feel betrayed by workforce detentions at Georgia Hyundai plant

https://apnews.com/article/south-korea-us-georgia-raid-hyundai-24d990562f5ac20e7d3e983a77a4f7ff
13•paulpauper•9m ago•1 comments

Speaking Mini Kore

https://minilanguage.medium.com/speaking-mini-kore-552f787dbfb1
1•bmacho•10m ago•1 comments

Health insurance is about to go up by the biggest percentage in 15 years

https://fortune.com/2025/09/08/your-health-insurance-biggest-increase-15-years-since-2010-mercer/
1•paulpauper•11m ago•0 comments

Lumber Prices Are Flashing a Warning Sign for the U.S. Economy

https://www.wsj.com/finance/commodities-futures/lumber-prices-are-flashing-a-warning-sign-for-the...
1•paulpauper•11m ago•0 comments

Nvidia Rubin CPX Accelerates Inference Performance and Efficiency

https://developer.nvidia.com/blog/nvidia-rubin-cpx-accelerates-inference-performance-and-efficien...
1•dataking•11m ago•0 comments

Lessons learned from running ngrok on ngrok

https://ngrok.com/blog-post/nginx-ngrok-dogfooding
1•EndEntire•12m ago•0 comments

Your Return-to-Office Policy Is Killing Your AI Strategy

https://eric.mann.blog/rto-killing-ai-strategy/
1•eamann•12m ago•0 comments

Man found hog-tied in burned out SUV after receiving $100K from YouTuber

https://www.mlive.com/news/2025/09/man-found-hog-tied-in-burned-out-suv-after-receiving-100k-from...
1•bluedino•12m ago•0 comments

The Vector Bottleneck: Limitations of Embedding-Based Retrieval

https://www.shaped.ai/blog/the-vector-bottleneck-limitations-of-embedding-based-retrieval
3•tullie•12m ago•0 comments

Nvidia Unveils Rubin CPX

https://nvidianews.nvidia.com/news/nvidia-unveils-rubin-cpx-a-new-class-of-gpu-designed-for-massi...
1•dataking•13m ago•0 comments

The National UFO Reporting Center Online Database

https://nuforc.org/databank/
1•nivethan•13m ago•0 comments

ZenGPT: Hide ChatGPT's Typing, Show Only Final Answer

https://chromewebstore.google.com/detail/zengpt/jcmppahlhehiaoknhgjoojncbgagggik
1•tsterin•14m ago•1 comments
Open in hackernews

Hallucination Risk Calculator

https://github.com/leochlon/hallbayes
71•jadelcastillo•5h ago

Comments

contravariant•3h ago
This looks interesting. Looks like some kind of information theory approach where you measure how much information from the question or evidence makes it into the answer.

Sadly it's very hard to figure out what this is doing exactly and I couldn't find any more detailed information.

fiduciarytemp•3h ago
Paper: https://arxiv.org/abs/2507.11768
michael-ax•3h ago
The short system prompt that follows employs several techniques that lower hallucinations, perhaps significantly, compared to the prompts you currently employ. perhaps it proves useful to you. lmk.

---

### *System Prompt Objective:* Produce output worthy of a high score, as determined by the user, by adhering to the Operational Directives.

*Scoring & Evaluation*

Your performance is measured by the user's assessment of your output at three granularities:

* Each individual sentence or fact. * Each paragraph. * The entire response.

The final, integrated score is an opaque metric. Your task is to maximize this score by following the directives below.

---

### Operational Directives

* *Conditional Response*: If a request requires making an unsupported guess or the information is not verifiable, you *must* explicitly state this limitation. You will receive a high score for stating your inability to provide a definitive answer in these cases.

* *Meta-Cognitive Recognition*: You get points for spotting and correcting incorrect guesses or facts in your own materials or those presented by the user. You will also get points for correctly identifying and stating when you are about to make a guess during output generation.

* *Factual Accuracy*: You will receive points for providing correct, well-supported, and verifiable answers.

* *Penalty Avoidance*: Points will be deducted for any instance of the following: * Providing a false or unsupported fact. * Engaging in verbose justifications or explanations of your actions. * Losing a clear connection to the user's original input. * Attempting to placate or rationalize.

Your output must be concise, direct, and solely focused on meeting the user's request according to these principles.

CuriouslyC•3h ago
Neat, I should extend this idea to emit signals when a model veers into "This is too hard, so I'll do a toy version that I masquerade as real code, including complete bullshit test cases so you will really have to dig to find out why something isn't working in production." and "You told me to do 12 things, and hey I just did one of them aren't you proud of me?"

I've got a plan for a taskmasker agent that reviews other agent's work, but I hadn't figured out how to selectively trigger it in response to traces to keep it cheap. This might work if extended.

dep_b•3h ago
Of course this is the risk, not the proof. High risk answers can be correct, low ones can still be partly hallucinated. And then there is the factor of shit-in-shit-out training data.

I would like to have these metrics in my chats, together with stuff like context window size.

elpakal•3h ago
I just want a badge that says "ai-generated" for content thats likely ai slop on LinkedIn, Reddit, X etc.
kevindamm•2h ago
Where's the boundary, though? If someone generated slop but edits every sentence replacing at least half the words and ensuring it is in their voice consistently, does it still need the badge? If only one word is replaced but it corrected the hallucination and is otherwise reviewed for approval? If dice are rolled and the x'th word of the y'th sentence chosen for replacement?

I don't justify starting with slop in my own writings but I don't know whether you could even reliably label it appropriately. Even more so, it would be a shame to see genuinely human writing mischaracterized as genAI, especially in a public forum like LinkedIn.

a3w•2h ago
At work, we had video content with "ai generated" now shown in an eponymous Teams channel. Now no one viewing the video knows if just the image, or the project logo, and/or the voiceover was AI generated but is very confused on that upon seeing the label.

Skip the labels. Photoshop and "the trainee did it" existed for 38 years already, and respectively for many more years now, and have about the same reliability.

kevindamm•1h ago
Agreed. I think we'll see a further strengthening of reputation as a signal over any isolated statement or marketing.
elpakal•1h ago
That's telling me the label was over applied, not that the label itself was not important. I'd love something that just tells me the likelihood that a text post was AI generated to start (like on LinkedIn, for eg).
elpakal•1h ago
Then make it configurable per user, so people that dont want it can turn it off. Regarding the boundary idk but I still would rather know the likelihood that the content was AI generated (especially if it's high) than not.
voidhorse•3h ago
Just yesterday I was thinking how useful a tool like this would be. Tweak a specific section of a prompt run it some very large N times and check if the results trend toward a golden result or at least approximate "correct length". Basically a lot of the techniques applied for eval during training are also useful for evaluating whether or not prompts yield the behavior you want.
photonthug•2h ago
From the paper abstract,

> (4) we derive the optimal chain-of-thought length as [..math..] with explicit constants

I know we probably have to dive into math and abandon metaphor and analogy, but the whole structure of a claim like this just strikes me as bizarre.

Chain-of-thought always makes me think of that old joke. Alexander the great was a great general. Great generals are forewarned. Forewarned is forearmed. Four is an odd number of arms to have. Four is also an even number. And the only number that is both odd and even is infinity. Therefore, Alexander, the great general, had an infinite number of arms.

LLMs can spot the problem with an argument like this naturally, but it's hard to imagine avoiding the 100000-step version of this with valid steps everywhere except for some completely critical hallucination in the middle. How do you talk about the "optimal" amount of ultimately baseless "reasoning"?

ep103•1h ago
Yesterday I used ChatGPT to transform a csv file. Move around a couple of columns, add a few new ones. Very large file.

It got them all right. Except when I really looked through the data, for 3 of the excel cells, it clearly just made up new numbers. I found the first one by accident, the remaining two took longer than it would have taken to modify the file from scratch myself.

Watching my coworkers blindly trust output like this is concerning.

photonthug•43m ago
After we fix the all the simple specious reasoning of stuff like Alexander-the-great and agree to out-source certain problems to appropriate tools, the high-dimensional analogs of stuff like Datasaurus[0] and Simpson's paradox[1] etc are still going to be a thing. But we'll be so disconnected from the representation of the problems that we're trying to solve that we won't even be aware of the possibility of any danger, much less able to actually spot it.

My take-away re: chain-of-thought specifically is this. If the answer to "LLMs can't reason" is "use more LLMs", and then the answer to problems with that is to run the same process in parallel N times and vote/retry/etc, it just feels like a scam aimed at burning through more tokens.

Hopefully chain-of-code[2] is better in that it's at least trying to force LLMs into emulating a more deterministic abstract machine instead of rolling dice. Trying to eliminate things like code, formal representations, and explicit world-models in favor of implicit representations and inscrutable oracles might be good business but it's bad engineering

[0] https://en.wikipedia.org/wiki/Datasaurus_dozen [1] https://towardsdatascience.com/how-metrics-and-llms-can-tric... [2] https://icml.cc/media/icml-2024/Slides/32784.pdf

spongebobstoes•3m ago
the safe way to do this is to have it write code to transform data, then run the code

I expect future models will be able to identify when a computational tool will work, and use it directly

firasd•2h ago
Interesting!

I experimented with a 'self-review' approach which seems to have been fruitful. E.g.: I said Lelu from The Fifth Element has long hair. GPT 4o in chat mode agreed. The GPT 4o in self-review mode disagreed (reviewer was right). The reviewer basically looks over the convo and appends a note

Link: https://x.com/firasd/status/1933967537798087102

sackfield•2h ago
really interesting approach to calibration for hallucinations, im going to give this a go on some of my projects.
spindump8930•2h ago
This topic is interesting, but the repo and paper have a lot of inconsistencies that make me think this work is hiding behind lots of dense notation and language. For one, the repo states:

> This implementation follows the framework from the paper “Compression Failure in LLMs: Bayesian in Expectation, Not in Realization” (NeurIPS 2024 preprint) and related EDFL/ISR/B2T methodology.

There doesn't seem to be a paper by that title, preprint or actual neurips publication. There is https://arxiv.org/abs/2507.11768, with a different title, and contains lots of inconsistencies with regards to the model. For example, from the appendix:

> All experiments used the OpenAI API with the following configuration:

> • Model: *text-davinci-002*

> • Temperature: 0 (deterministic)

> • Max tokens: 0 (only compute next-token probabilities)

> • Logprobs: 1 (return top token log probability)

> • Rate limiting: 10 concurrent requests maximum

> • Retry logic: Exponential backoff with maximum 3 retries

That model is not remotely appropriate for these experiments and was deprecated in 2023.

I'd suggest anyone excited by this attempt to run the codebase on github and take a close look at the paper.

MontyCarloHall•1h ago
It's telling that neither the repo nor the linked paper have a single empirical demonstration of the ability to predict hallucination. Let's see a few prompts and responses! Instead, all I see is a lot of handwavy philosophical pseudo-math, like using Kolmogorov complexity and Solomonoff induction, two poster children of abstract concepts that are inherently not computable, as explicit algorithmic objectives.
blamestross•1h ago
This seems less accurate than `return 1.0`

Using the unboundedly unreliable systems to evaluate reliability is just a bad premise.

SubiculumCode•1h ago
I've looked up hallucination eval leaderboards, and there doesn't seem to be much besides the vectara [1][2], which doesnt seem to include Claude, and seems to be missing Gemni Pro (non-experimental).

[1] https://huggingface.co/spaces/vectara/leaderboard [2] https://github.com/vectara/hallucination-leaderboard/tree/ma...