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Ideorama – a reference board for images 3D, video and sound

https://ideorama.xyz
1•kvnlst•26s ago•0 comments

Flights halted at airports across US due to air traffic control comms problems

https://apnews.com/article/flights-halted-airports-faa-f81b0904331dafad6133f291e5f531a8
2•kelnos•2m ago•1 comments

Richard Feynman and the Math of Menu Choices

https://www.alumni.caltech.edu/techer/stories/richard-feynman-and-the-math-of-menu-choices/
1•greedo•4m ago•0 comments

Robot Arm Build

https://twitter.com/farevalo27/status/2121364960718750055
1•FabianArevalo•5m ago•1 comments

FAA expands AI advice to manage air traffic congestion across US airspace

https://arstechnica.com/ai/2026/11/faa-expands-ai-advice-to-manage-air-traffic-congestion-across-...
1•u1hcw9nx•5m ago•2 comments

Starship Launch 15 Live

https://x.com/i/broadcasts/2brajgZlOKRMka
2•gibsonf1•7m ago•0 comments

My first two months with AI agents: some confident assertions

https://www.mikehermele.com/blog/first-two-months/
1•EvgeniyZh•7m ago•0 comments

National Weather Service reports nationwide radar website outage amid FAA stop

https://www.news9.com/oklahoma-city-news/national-weather-service-reports-nationwide-radar-websit...
2•galleywest200•9m ago•1 comments

PixiJS 3D Open Sourced

https://pixijs.com/blog/pixi-3d-open-beta
1•andsoitis•10m ago•0 comments

Tanker collides with river cruiser near Port of New Orleans

https://www.cnn.com/2026/11/13/us/live-news/new-orleans-cruise-ship-crash
1•robotnikman•11m ago•0 comments

Starship Flight 15 live

https://twitter.com/SpaceX/status/2121316300702056595
6•mudil•15m ago•0 comments

CallMyMac – Give your Mac a phone number, call it to listen and control it

https://callmymac.com
1•debt•17m ago•0 comments

End‑to‑End 4‑Bit Training

https://thinkingmachines.ai/blog/end-to-end-4-bit-training/
2•stokedmartin•19m ago•0 comments

Simple, Shareable Todo Lists

https://todo.link
2•joekndy•20m ago•1 comments

Live airband on all frequencies from KORS. Victoria, CA also ground stopped

https://orcasairband.com/
9•mmaunder•21m ago•0 comments

1900s How do you Wash a Kimono?

https://www.oldphotosjapan.com/photos/877/laundry-washing-clothes-meiji-19th-century-vintage-albu...
1•Matrixik•21m ago•0 comments

DSPy vs. LangGraph: AI Agent Frameworks Explained – Stanford CS329Z [video]

https://www.youtube.com/watch?v=q0Q-Hy8TTps
1•matt_d•22m ago•0 comments

Show HN: Customer Intelligence and Monetization Toolkit for Claude Code

https://github.com/Satvik-jain/customer-intelligence-toolkit
1•admiral-mini-8b•22m ago•0 comments

Counter-Recon via Edge Deception

https://divert.cloud/blog/counter-recon-via-edge-deception-to-telegram
1•mhedrick•24m ago•0 comments

When Nothing Happens

https://mikefisher.substack.com/p/when-nothing-happens
1•fagnerbrack•25m ago•0 comments

Models Are Outpacing Environment Creation

https://www.fig.inc/blog/models-are-outpacing-environment-creation/
1•pranavguru•25m ago•0 comments

Flights grounded at US airports due to air traffic control issue

https://www.theguardian.com/us-news/live/2026/nov/13/us-politics-latest-news-updates-democrats-re...
4•nephihaha•25m ago•1 comments

FAA issues nationwide ground stop for all flights

https://www.cnn.com/2026/11/13/us/live-news/flights-ground-stop-faa
4•koolba•31m ago•1 comments

Jensen Huang Hired a PR Firm Known for Handling Sex Scandals Last Year

https://www.wired.com/story/nvidia-ceo-jensen-huang-hired-a-pr-firm-known-for-handling-sex-scanda...
1•mzs•32m ago•0 comments

FAA Declares a Rare Nationwide Ground Stop

https://www.nytimes.com/live/2026/11/13/us/ground-stop-nationwide-flights-faa
5•jbegley•36m ago•1 comments

Show HN: Algorithmic MIDI Companion – Viterbi SATB Solver and Euclidean Rhythms

https://midicompanion.revisitedlabs.com/
1•ntropey•36m ago•0 comments

FAA Ground Stop timeline via their real-time data feed

https://ifrmeter.com/blog/national-ground-stop-2026-11-13
6•mmaunder•36m ago•3 comments

US Air Force says it responded to 'suspected drones' over RAF Lakenheath

https://www.bbc.com/news/articles/c6jd75geegzyo
2•10xDev•37m ago•1 comments

Bitrise reports an active security incident

https://status.bitrise.io/incidents/7055z4g9nbck
1•vocoded•37m ago•0 comments

California startup aims to turn cow manure into sustainable jet fuel

https://www.aerotime.aero/articles/california-startup-cow-manure-jet-fuel
1•rmason•37m 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!