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JJ Con '26 [video]

https://www.youtube.com/watch?v=DFjbAsWQ9ns
1•joshka•51s ago•0 comments

The Google Play app review process now regularly takes longer than a week

https://gultsch.social/@daniel/117280438824908947
1•inputmice•54s ago•0 comments

I Made a Time Machine

https://1matin.com/time-machine/
1•1matin•2m ago•0 comments

Is anyone else losing their motivation to nerd out and tinker because of AI?

1•rizsyed1•3m ago•1 comments

Anna Holmes on Saying No and Yes

https://www.cjr.org/the-interview/anna-holmes-saying-no-and-yes-jezebel-founder-struggle-freedom-...
1•Tomte•4m ago•0 comments

Nvidia announces native GPU programming in Rust

https://developer.nvidia.com/blog/introducing-cuda-rust-two-tracks-for-writing-gpu-kernels/
1•nonmaskable•4m ago•0 comments

Europe Time Machine, an interactive map of Europe's borders

https://europe-time-machine.vercel.app/
1•bebanR•6m ago•0 comments

Ask HN: How do you prevent customer PII from reaching LLMs unnecessarily?

1•Securelytixdev•6m ago•0 comments

An LLM-Turbocharged Community Calendar Reboot (2024)

https://thenewstack.io/an-llm-turbocharged-community-calendar-reboot/
1•zeristor•6m ago•1 comments

Devastated father says his 9-year-old son spent $118,000 on YouTube ads

https://www.tomshardware.com/video-games/devastated-father-says-his-9-year-old-son-spent-usd118-0...
1•vanburen•7m ago•0 comments

Silly Sound Bastard It is yet another clone of the well known Covox Speech Thing

https://github.com/necroware/silly-sound-bastard
1•Bluestein•13m ago•0 comments

Should markets discount the AI apocalypse?

https://www.ft.com/content/845a7c03-15b4-4bff-a49c-25781287b75c
1•cc62cf4a4f20•13m ago•0 comments

Cyber Defense for the Hybrid Enterprise in the Age of AI

https://www.ciscopress.com/store/cyber-defense-for-the-hybrid-enterprisein-the-age-of-9780135472781
1•teleforce•14m ago•0 comments

AI models need more data about biology, and OpenAI is paying to create it

https://www.technologyreview.com/2026/09/15/1144129/ai-models-need-more-data-about-biology-and-op...
1•joozio•17m ago•0 comments

Show HN: Omastorm – Live NEXRAD weather radar for Omarchy

https://github.com/wesleygrimes/omastorm
1•wesgrimes•19m ago•0 comments

Apodex – FrontierAgent

https://github.com/ApodexAI/FrontierAgent
1•marksully•19m ago•0 comments

Internal Tool Delegation for Agents vs. External Payment Auth

https://skyfire.xyz/ai-agent-authentication-authorization-platforms/
1•mooreds•20m ago•0 comments

Ask HN: What is the most career altering course or book you have gone through?

2•learner_yearner•21m ago•2 comments

China's open-weight AI models are now just 4 months behind frontier US offerings

https://www.tomshardware.com/tech-industry/artificial-intelligence/chinas-open-weight-ai-models-a...
2•rbanffy•21m ago•0 comments

What writing for the Washington Post taught me about standup comedy

https://pammoore.substack.com/p/what-writing-for-the-washington-post
1•mooreds•22m ago•0 comments

Mythos 5 Transcript Release

https://github.com/anthropics/mythos-5-incident-transcript
2•marksully•22m ago•0 comments

HP ZBook Ultra G3a 16 Preview: 192GB Unified Memory Aims for Top Local AI Laptop

https://www.storagereview.com/review/hp-zbook-ultra-g3a-16-preview-192gb-of-unified-memory-aims-f...
1•rbanffy•23m ago•0 comments

Show HN: IndexLaunch – free indexability checker and IndexNow submission queue

https://www.indexlaunch.site/
1•mp866137•24m ago•0 comments

The New Chinese Way of Cyberwar

https://www.foreignaffairs.com/china/new-chinese-way-cyberwar-ai
1•michaelhillaert•26m ago•0 comments

Show HN: Gescom MiniDisc Runner – 88 tracks, 88! possible orders

https://github.com/EI3LH/Gescom-MiniDisc-Runner
1•austinallegro•27m ago•0 comments

The End of EWS in Mail and AppleScript in Outlook

https://mjtsai.com/blog/2026/08/20/the-end-of-ews-in-mail-and-applescript-in-outlook/
1•vinni2•28m ago•0 comments

When Software Becomes Cheap, Trust Becomes Expensive

https://medium.com/@hbbio/when-software-becomes-cheap-trust-becomes-expensive-621cf347880f
1•hbbio•29m ago•0 comments

Ask HN: Can LLMs be used to invent a new human language?

1•loopies•29m ago•2 comments

Turn a musician's photo and video archive into a social content calendar

https://wdstck.co/
1•r13i•29m ago•1 comments

Cartman, Kenny, Stan and Kyle Are Back as South America Season 29 Premieres

https://southpark.cc.com/news/b2w25u/south-american-biker-gangs
1•HelloUsername•30m ago•1 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!