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You can't buy 20 pieces of aluminum tube online

https://vestalmetals.com/blog/aluminum-tube-bin-packing/
1•pdfiv•32s ago•0 comments

The Platform that Builds itself

https://opengeni.substack.com/p/the-platform-that-builds-itself
1•davletdz•1m ago•0 comments

Markdown Locker – local Markdown notes agents can attach to via MCP

https://markdown.locker/
1•fortblocks•2m ago•0 comments

Slack Shortcuts

https://slack.com/intl/en-gb/help/articles/360057554553-Use-shortcuts-to-take-actions-in-Slack?no...
1•ankitg12•2m ago•0 comments

Revision Prompting: improves industrial LLM processes

https://revisionprompting.info/
1•idiliv•2m ago•0 comments

Show HN: DejaVu – instant replay for Windows that survives crashes (160 KB exe)

https://github.com/blancodagoat/DejaVu
1•signalsift•4m ago•0 comments

Cross-Examine – replay base behavior against an AI-generated PR

https://github.com/stefbuilds/cross-examine
1•stefanospalyvos•4m ago•0 comments

I monetized my API in 30 minutes with x402 no accounts, no API keys, fast USDC

https://6766587364.lol
1•MikeDorian•4m ago•0 comments

Show HN: A deterministic gate that checks agent tool calls before they run

https://github.com/login
1•zahraarman•5m ago•0 comments

uBlock Origin stops dealing with Facebook any longer

https://www.reddit.com/r/uBlockOrigin/comments/1vgcjg5/about_disgusting_facebook_devs/
1•gbil•5m ago•0 comments

DEF CON dingus suspected of trying to take over Delta in-flight Wi-Fi

https://www.theregister.com/security/2026/08/11/def-con-dingus-suspected-of-trying-to-take-over-d...
1•hahahaa•5m ago•0 comments

With Trump Secretly Evacuated, Imperiled Air Force One Became a Flying Decoy

https://www.nytimes.com/2026/08/11/us/politics/trump-air-force-one-decoy.html
2•jbegley•7m ago•0 comments

2026 Eclipse Webcams

https://jonty.github.io/2026_eclipse_webcams/
2•zoenolan•7m ago•0 comments

SpaceX's Earnings Show Elon Wiped Out Two-Thirds of Twitter's Ad Business

https://www.techdirt.com/2026/08/10/spacexs-earnings-show-elon-wiped-out-two-thirds-of-twitters-a...
2•_1•8m ago•0 comments

Jellyfish force shutdown of three reactors at French nuclear plant

https://www.lemonde.fr/en/france/article/2026/08/11/jellyfish-force-shutdown-of-three-reactors-at...
2•geox•9m ago•0 comments

I built an MCP server to show my AI my screen

https://desktopvisionmcp.com/
1•AquiGorka•9m ago•1 comments

The Egison Programming Language

https://www.egison.org/
2•Tomte•9m ago•0 comments

An LLM-generated counterexample far outside one's area of expertise

https://mathoverflow.net/questions/514181/what-does-one-do-when-one-accidentally-stumbles-upon-an...
1•jjgreen•10m ago•1 comments

Ask HN: GitHub project that showed all edits (somewhat proving human authorship)

1•4d66ba06•11m ago•0 comments

Instant Messaging and Interruption: Influence of Task Type on Performance

https://www.microsoft.com/en-us/research/publication/instant-messaging-and-interruption-influence...
2•ankitg12•13m ago•0 comments

The StubHub Customers Who Battled for Tickets–and Battle Harder for a Refund

https://www.wsj.com/business/stubhub-tickets-resell-refund-de5ef8c3
1•JumpCrisscross•13m ago•0 comments

Multiple local news stations say the same thing verbatim (2018) [video]

https://www.youtube.com/watch?v=ksb3KD6DfSI
1•edot•15m ago•0 comments

Show HN: KidScreen, a finite YouTube shelf chosen by parents

https://kidscreen.app
2•Tintly•16m ago•0 comments

Show HN: The Digital Junk Drawer – a shoebox of tiny web apps

https://the-digital-junk-drawer.vercel.app/
1•Nex07•17m ago•0 comments

5th Heat Dome Expands Across Europe: 40°C+ Target Western and Central Europe

https://www.severe-weather.eu/global-weather/excessive-heat-dome-heatwave-western-europe-mid-augu...
2•robtherobber•18m ago•1 comments

China's Great Jobs Squeeze

https://www.ft.com/content/a3803e70-cb4d-444f-a31e-05be2f2c44f6
4•porridgeraisin•18m ago•1 comments

Confessions of a former star M&A reporter

https://www.ft.com/content/a5d5239c-9206-418c-822a-ace82d47f05c
1•thm•19m ago•0 comments

Computer scientists today are in the position of economists in the early 2000s

https://statmodeling.stat.columbia.edu/2026/08/11/computer-scientists-today-are-like-economists-i...
1•jreynar•19m ago•0 comments

Show HN: Play Chess. Earn coins. Build an army

https://chesspoly.com/
1•skyfantom•21m ago•0 comments

What good requirements look like (and how to write them)

https://projan.ai/blog/what-good-requirements-look-like-and-how-to-write-them
2•davec271•24m 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!