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How Intelligence Agencies Deanonymized Admins of the "Boystown" Tor Service [video]

https://www.youtube.com/watch?v=Mzz6-mfevfs
1•intunderflow•4m ago•0 comments

A marketplace that kills the hidden ad-waste tax in e-commerce

2•Baqqla•15m ago•0 comments

AlphaFold: Five Years of Impact

https://deepmind.google/blog/alphafold-five-years-of-impact/
1•mariuz•15m ago•0 comments

Women's Rights Are Winning

https://foreignpolicy.com/2025/10/21/women-rights-equality-gender-abortion-populism-right-wing-fe...
2•mooreds•16m ago•0 comments

Geothermal Breakthrough in South Texas Signals New Era for Ercot

https://www.powermag.com/geothermal-breakthrough-in-south-texas-signals-new-era-for-ercot/
3•mooreds•17m ago•0 comments

The most sustainable feedstocks for precision fermentation (2024)

https://worldbiomarketinsights.com/the-most-sustainable-feedstocks-for-precision-fermentation/
1•mooreds•18m ago•0 comments

Merger (Purchase) Agreements Are Too Long

https://corpgov.law.harvard.edu/2025/11/28/merger-agreements-are-too-long/
2•cwwc•21m ago•0 comments

Are we in a GPT-4-style leap that evals can't see?

https://martinalderson.com/posts/are-we-in-a-gpt4-style-leap-that-evals-cant-see/
1•martinald•23m ago•0 comments

Rads on a Plane: Hot Seats in First Class

https://spaceweatherarchive.com/2015/07/31/rads-on-a-plane-hot-seats-in-first-class/
3•qwertyuiop_•26m ago•0 comments

Discovering that my smartphone had infiltrated my life

https://utcc.utoronto.ca/~cks/space/blog/tech/SmartphoneInfiltratedMyLife
3•walterbell•28m ago•0 comments

Sboxdb: A Distributed SQL Database Written in Rust – For Learners, by Learners

https://github.com/maxnilz/sboxdb
2•maxnilz•31m ago•0 comments

ASML Got EUV

https://www.construction-physics.com/p/how-asml-got-euv
1•NewCzech•32m ago•0 comments

Debunking the Hype of Innovation and Continuous Growth

https://medium.com/@ersinesen/debunking-the-hype-of-innovation-and-continuous-growth-34a49788d6e6
1•ersinesen•34m ago•1 comments

Beyond the Repository – Communications of the ACM

https://cacm.acm.org/practice/beyond-the-repository/
1•rbanffy•34m ago•0 comments

Migrating Dillo from GitHub

https://dillo-browser.org/news/migration-from-github/
14•todsacerdoti•34m ago•2 comments

Show HN: Online Toon Formatter and Converter

https://jsonpanda.com/toon-formatter
1•mixfox•35m ago•0 comments

I Built an Open Source Alternative to Fing Because Privacy Matters

https://nitrocode.sh/blog/2025/11/30/openfing-open-source-alternative-to-fing
2•nitrocode•36m ago•0 comments

Don't throw away your old PC–it makes a better NAS than anything you can buy

https://www.howtogeek.com/turned-old-windows-pc-into-inexpensive-nas/
11•makerdiety•37m ago•3 comments

The Great Consciousness Theory a Single-Axiom Model of Reality

1•MATE_VIGH•41m ago•0 comments

Email Should Be Programmable

https://github.com/divizend/divizend.github.io
2•sigalor•41m ago•0 comments

Wētā FX and AWS to Develop AI Tools for VFX Artists

https://www.awn.com/news/w-t-fx-and-aws-develop-ai-tools-vfx-artists
1•rbanffy•42m ago•0 comments

Antifragile Programming and Why AI Won't Steal Your Job

https://lemire.me/blog/2025/11/29/antifragile-programming-and-why-ai-wont-steal-your-job/
1•brazukadev•44m ago•0 comments

ChatGPT-5 offers dangerous advice to mentally ill people, psychologists warn

https://www.theguardian.com/technology/2025/nov/30/chatgpt-dangerous-advice-mentally-ill-psycholo...
1•hackernj•44m ago•0 comments

CachyOS November 2025 Release

https://cachyos.org/blog/2511-november-release/
1•doener•45m ago•0 comments

A unified theory of ambiguous cognition for humans and LLMs (FLCT)

https://zenodo.org/records/17769132
1•takeshi_sakamo•45m ago•2 comments

I wrote 40 papers about AI generating synthetic truth. I used AI to write them [pdf]

https://philpapers.org/archive/ALPTEN.pdf
2•GeldiBey•47m ago•1 comments

Flux Playground

https://playground.bfl.ai/image/generate
2•doener•49m ago•0 comments

Developers: Let Distros Do Their Job (2021)

https://drewdevault.com/2021/09/27/Let-distros-do-their-job.html
2•zbentley•49m ago•0 comments

Show HN: Gridscript – simplifying how you work with data

1•gridscript•53m ago•2 comments

Shopify Live Globe 2025

https://bfcm.shopify.com/
1•doppp•55m ago•0 comments
Open in hackernews

An Enterprise-Level Retrieval-Augmented Generation System

https://comfyai.app/article/llm-applications/enterprise-level-rag-hands-on-practice-II
6•zljdanceholic•6mo ago

Comments

zljdanceholic•6mo ago
How can we search the wanted key information from 10,000+ pages of PDFs within 2.5 hours? For fact check, how do we implement it so that answers are backed by page-level references, minimizing hallucinations?

RAG-Challenge-2 is a great open-source project by Ilya Rice that ranked 1st at the Enterprise RAG Challenge, which has 4500+ lines of code for implementing a high-performing RAG system. It might seem overwhelming to newcomers who are just beginning to learn this technology. Therefore, to help you get started quickly—and to motivate myself to learn its ins and outs—I’ve created a complete tutorial on this.

We have a complete graph to explain its workflow where multiple tools are used: Docling for parsing PDFs, LangChain for chunking text, faiss for vectorization and similarity searching, and chatgpt for LLMs.

Besides, I also outline the codeflow, demonstrating the running logic involving multiple python files where starters can easily get lost. Different files are colored differently. The purpose of showing this is not letting you memorize all of these file relationships. It works better for you to check the source code yourself and use this as a reference if you find yourself lost in the code.

The original project of Ilya Rice design its RAG system for answering questions of annual reports from companies, so he only designed three types of question response format for that challenge: a name, a number, or a boolean. But to ask questions about technical stuff, we absolutely ask general questions like How does RoPE work? to know about some concepts and the like Therefore, I further modify the system logic to fit this need by customizing an AnswerWithRAGContextExplanationPrompt class and automatically matching the most related chapter and corresponding pages via searching through all faiss databases (only retrieve the top-1) The final performance is demonstrated below (not cherry-picked, only tested once).

- What's the steps to train a nanoGPT from scratch? The answer is:

Training nanoGPT from scratch involves several clearly defined steps. First, set up the environment by installing necessary libraries, using either Anaconda or Google Colab, and then download the dataset (e.g., tinyShakespeare). Next, tokenize the text into numerical representations and split the data into training and validation sets. Define the model architecture including token/positional embeddings, transformer blocks with multi-head self-attention and feed-forward networks, and layer normalization. Configure training hyperparameters and set up an optimizer (such as AdamW). Proceed with a training loop that performs forward passes, computes loss, backpropagates, and updates parameters, while periodically evaluating performance on both training and validation data. Finally, use the trained model to generate new text from a given context.

All code are provided on Colab and the tutorial is referenced here. Hope this helps!