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X Window System at 40

https://blog.dshr.org/2024/07/x-window-system-at-40.html
1•mariuz•53s ago•0 comments

Selling Out

https://www.seangoedecke.com/selling-out/
2•johnny313•5m ago•0 comments

PLCBench: Can Autonomous LLM Agents Turn PLC Access into Sustained Physical

https://arxiv.org/abs/2608.26882
1•sbulaev•9m ago•0 comments

Mac extension (panel/pill/nub) to show LLM usage

https://github.com/abhayKashyap03/usage-notch
1•abhaykashyap03•10m ago•0 comments

Breaking Claude Code Opus 5 Auto Mode

https://embracethered.com/blog/posts/2026/breaking-claude-code-opus-5-and-automode/
2•jaksa•12m ago•1 comments

Show HN: A comic/webtoon reader with CSS scroll-snap, vanilla JavaScript

https://jazzy-torrone-fd91d9.netlify.app/
1•EditArteSoy•12m ago•0 comments

Psychedelics align brain activity with context

https://www.nature.com/articles/s41586-026-10910-z
1•jbotz•13m ago•0 comments

The Internet Archive's Vintage AI Collection

https://archive.org/details/vintageai
2•OuterVale•16m ago•0 comments

There are no more moats anymore

https://twitter.com/auren/status/2093826482384589218
1•tosh•16m ago•0 comments

Title: Show HN: I turned my homelab GPU into a paid API on Base mainnet

https://github.com/Runuk/argo-x402-reference
1•ru_nuk_01•21m ago•0 comments

ECMAScript spec proposal for ShadowRealm API

https://github.com/tc39/proposal-shadowrealm
1•tosh•21m ago•0 comments

Open source dataset cleaner for JSONL outputs

https://pypi.org/project/dataset-cleaner-cli/
1•Galvatar•25m ago•0 comments

A local-first workspace for documents, tasks and meetings on macOS

https://github.com/bitwize-ai/Logue
2•westerosweb•27m ago•0 comments

Show HN: Offline music practice apps – no account,no subscription,no analytics

https://music-buddha.com/
1•gabelopez•29m ago•0 comments

Guide to Rock Licking

https://geoscopy.com/the-rock-licking-guide-why-geologists-really-do-it-and-when-you-shouldnt/
2•Eridanus2•31m ago•0 comments

The viral leftist teens of Campaign 2020 work for OpenAI now

https://www.cnn.com/2026/08/29/us/gravel-teens-openai-cec
2•1659447091•35m ago•1 comments

Show HN: Claypot – a block-based studio for kids to inspect AI systems

https://claypot.app/
1•arvindm1991•38m ago•0 comments

See a Scam? Report It

https://150proc.pl/en/scamwatch
1•dara5•39m ago•0 comments

Curiosity Vault – an open-source library of practical guides, built with Astro

https://github.com/RomelAnte/curiosity-vault
1•romelantedev•39m ago•0 comments

Test

1•YasuoTanaka•41m ago•0 comments

Accidentally Hacked Three Family Members

https://blog.nathanlangley.dev/posts/accidentally-hacked-family.html
1•ninjahawk1•43m ago•0 comments

The hidden health cost of dollar store groceries

https://news.ucr.edu/articles/2026/08/18/hidden-health-cost-dollar-store-groceries
1•hhs•44m ago•0 comments

Australia usually hosts the biggest cuttlefish mating event – not this year

https://www.bbc.com/news/articles/c75gyw0nkzno
1•blondie9x•45m ago•0 comments

Online reviews risk cyberattacks

https://news.mccombs.utexas.edu/research/online-reviews-risk-cyberattacks/
1•hhs•45m ago•0 comments

Microsoft Admits AI Training in New User Privacy Statment

https://slashdot.org/submission/17350256/microsoft-admits-ai-training-in-new-user-privacy-statment
2•MilnerRoute•46m ago•0 comments

Light-powered soft robots can keep jumping forever

https://news.ncsu.edu/2026/08/soft-robots-jumping-forever/
1•hhs•47m ago•0 comments

Percent on ARC-AGI-3

https://monotykamary.com/posts/100-percent-on-arc-agi-3/
1•freediver•48m ago•0 comments

New Bimodal Design Could Supercharge Nuclear Spacecraft

https://spectrum.ieee.org/bimodal-nuclear-spacecraft
1•rbanffy•48m ago•0 comments

Reconstructing lattice point enumeration using Asian counting rods

https://oborona.zip/post/polygon-partitioning-and-piled-pile-sequences-on-an-equilateral-triangul...
1•gg582•52m ago•0 comments

Critical: Persistent back end data retention after deletion in AI Studio

https://issuetracker.google.com/issues/554464766
1•Bitu79•57m 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!