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North Korea 'Likely' Behind $388M Hack of Crypto Exchange Bitget

https://gizmodo.com/north-korea-very-likely-behind-388-million-hack-of-crypto-exchange-bitget-200...
1•MC995•2m ago•0 comments

Excel now supports multiple values in a single cell

https://techcommunity.microsoft.com/blog/excelblog/excel-now-supports-multiple-values-in-a-single...
2•luispa•5m ago•0 comments

Analyzing Frontier Model Progress with My Favourite Game: Prince of Persia

https://blog.priyan.in/2026/09/analyzing-frontier-model-progress-with.html
1•msephton•6m ago•0 comments

Learning the Bitter Lesson of Agent Harnesses [video]

https://www.youtube.com/watch?v=smBOBYZ3-5w
1•tuanlda•12m ago•1 comments

What one vLLM replica on an L40 can carry and how it fails

https://percentes.ai/writing/2026/calibrating-one-l40-configuration/
1•itsveems•12m ago•0 comments

The stupidity and arrogance of GNOME developers

https://felipec.wordpress.com/2024/03/18/stupid-gnome-developers/
1•Muhammad523•12m ago•0 comments

Finally, A True Blue Rose Exists

https://www.sciencenews.org/article/true-blue-rose-pigment-copigment
2•bookofjoe•16m ago•0 comments

Using Claude Code: Spending your effort

https://twitter.com/trq212/status/2103576349499855160
1•mfiguiere•16m ago•0 comments

Cringe and Corny

https://ambrook.com/offrange/culture/on-cringe-and-corny
1•surprisetalk•18m ago•0 comments

Yegge's Paradox

https://willbeddow.substack.com/p/yegges-paradox
1•willbeddow•18m ago•0 comments

Show HN: Piloxa – an MCP server that sends USPS Certified Mail from your AI

https://piloxa.com/for-ai-agents
1•kameir•22m ago•0 comments

Tell HN: Chrome 154 corrupt Fontconfig cache and crash KDE Plasma

1•vdfs•22m ago•0 comments

Too AI; Didn't Read

https://www.tai-dr.com/
3•rfonseca•22m ago•0 comments

The Scarcity Premium: AI made images free; advertising as a solvency bond

https://scarcity.danieldeboulay.com
2•freedmans•24m ago•0 comments

Asteroids named after Tom Lehrer and 'Weird Al' Yankovic

https://science.slashdot.org/story/26/09/24/009238/asteroids-named-after-tom-lehrer-and-weird-al-...
3•MilnerRoute•26m ago•0 comments

Show HN: I read ISO 273 off the standard because the online charts disagree

https://supra.silviaai.dev/reference/iso-273-clearance-holes
1•Seeper•27m ago•0 comments

Anthropic's Claims over Its "Supply Chain Risk" Exclusion by Dow Rejected

https://reason.com/volokh/2026/09/25/anthropics-first-amendment-claim-against-department-of-war-r...
2•theptip•28m ago•2 comments

Show HN: A free resume builder where the AI can rewrite but can't invent

https://nokku.payanai.com/resume-builder
1•payanai•28m ago•0 comments

More than a taken branch per cycle?

https://lemire.me/blog/2026/09/21/more-than-a-taken-branch-per-cycle/
1•surprisetalk•30m ago•0 comments

Of 1,364 four-year colleges, 17 admit fewer than 1 in 10 applicants

https://m.regrok.info/college-admission.html
1•vipin211•31m ago•0 comments

One Shotted

https://www.quarter--mile.com/One-Shotted
1•surprisetalk•32m ago•0 comments

Container Registry on the Edge

https://ewpratten.com/blog/zot-edge/
1•ewpratten•33m ago•0 comments

AI starter pack for the X-curious

https://xstarterpack.com/
1•rmason•34m ago•0 comments

AI will grow beyond our control, we must instill good values before it does

https://blog.kradle.ai/p/ai-will-grow-beyond-our-control-we
2•jamest•39m ago•0 comments

Making `wc` 20x faster with parallel state machines

https://aarol.dev/posts/wc-dfa/
2•ibobev•39m ago•0 comments

Writing Efficient C++ Code

https://asawicki.info/articles/writing_efficient_cpp_code.php
1•ibobev•40m ago•0 comments

Time Measurement in Game Programming

https://asawicki.info/articles/time_measurement_in_game_programming.php
3•ibobev•40m ago•0 comments

2027 Tesla Semi First Drive

https://www.motortrend.com/reviews/2027-tesla-semi-first-drive-review-electric-big-rig
3•fprog•40m ago•0 comments

Build Plugins for Claude

https://claude.com/blog/build-plugins-for-claude
3•pretext•42m ago•0 comments

Commodified Intelligence

https://herecomesthemoon.net/2026/09/commodified-intelligence/
1•dimonomid•43m 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•1y ago

Comments

zljdanceholic•1y 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!