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Trump threatens 100% tariff on European digital services taxes

https://www.bbc.co.uk/news/articles/cn4rd71411ko
1•lifeisstillgood•2m ago•0 comments

Waveloop: What Fable Left Me

https://neynt.ca/writing/waveloop/
1•personjerry•2m ago•0 comments

Ask HN: Anthropic Billing Issues?

1•nycdatasci•3m ago•0 comments

Steam Controller auto-charge with computer vision tracking

https://github.com/FossPrime/Steam-Controller-Auto-Charge
1•phoronixrly•6m ago•0 comments

A molecular seesaw drives healthy skin development: research

https://med.stanford.edu/news/all-news/2026/06/molecular-seesaw-skin-development.html
1•hhs•7m ago•0 comments

Darwin: Libsystem_malloc .dylib and XZone

https://df-f.com/blog/darwin-libsystem-malloc-dylib-and-xzone
1•akyuu•9m ago•0 comments

Decker Fantasy Camp 2026

https://itch.io/jam/decker-fantasy-camp-2026
1•RodgerTheGreat•14m ago•0 comments

Understanding Ordinary Events

https://ordinary.blog/posts/understanding-ordinary-events/
2•watters•14m ago•0 comments

Speeding Up Ratchets with Resharp

https://danverbraganza.com/writings/ratchets-run-faster-with-resharp
1•nvader•19m ago•0 comments

The Church-Turing Thesis from the Perspective of Discrete Physics

https://gist.github.com/wyniijj5-wq/66f06982a912fa4b4812cea5615c2d6f
1•wij•22m ago•0 comments

Volkswagen reportedly planning to axe 100k jobs

https://www.cnn.com/2026/06/26/economy/volkswagen-job-cuts
4•teleforce•22m ago•0 comments

Thomas Salme

https://en.wikipedia.org/wiki/Thomas_Salme
4•st_goliath•26m ago•0 comments

Apple Internals: Swift in the Kernel

https://blog.calif.io/p/apple-internals-swift-in-the-kernel
1•akyuu•27m ago•0 comments

Revolut dials back remote work for graduates

https://sifted.eu/articles/revolut-dials-back-remote-work-for-graduates
1•tg180•27m ago•0 comments

Over 1/3 of households in Poland consist of one person amid demographic change

https://notesfrompoland.com/2026/06/25/over-a-third-of-households-in-poland-now-consist-of-one-pe...
1•toomuchtodo•28m ago•1 comments

Retraction questions claim that cancer therapy works better in morning

https://www.science.org/content/article/retraction-questions-claim-cancer-therapy-works-better-mo...
1•hentrep•28m ago•0 comments

Trump admin allows Anthropic to release Mythos AI model to some companies

https://www.cnbc.com/2026/06/26/us-government-anthropic-claude-mythos5-ai.html
3•dataking•31m ago•1 comments

US releases powerful Anthropic model Mythos to some US companies

https://www.semafor.com/article/06/27/2026/us-releases-powerful-anthropic-model-mythos-to-some-us...
2•wasting_time•33m ago•0 comments

Rocket Lab launches 10th Synspective satellite – SpaceNews

https://spacenews.com/rocket-lab-launches-10th-synspective-satellite/
2•rbanffy•36m ago•0 comments

Interview – ADHD Child vs. Non-ADHD Child [video]

https://www.youtube.com/watch?v=-IO6zqIm88s
1•gurjeet•39m ago•1 comments

You can't always trust a BMC's inventory of the server's hardware

https://utcc.utoronto.ca/~cks/space/blog/tech/BMCDontTrustHardwareInventory
3•LorenDB•40m ago•0 comments

Due to the AI memory crisis, Apple is bringing back the original Apple I

https://old.reddit.com/r/MacStudio/comments/1ugkygr/due_to_the_ai_memory_crisis_apple_is_bringing/
1•akirahittoxyz•41m ago•0 comments

The US lifts its block on Mythos 5

https://twitter.com/Techmeme/status/2070638481265905837
52•bobrenjc93•43m ago•19 comments

Ask HN: Any OSS models as good as GPT-4o-mini?

2•ra0x3•47m ago•0 comments

Mankato Unofficial Website

http://city-mankato.us/
2•limbicsystem•47m ago•0 comments

Why does kinetic energy increase quadratically, not linearly, with speed? (2011)

https://physics.stackexchange.com/questions/535/why-does-kinetic-energy-increase-quadratically-no...
3•ProxyTracer•48m ago•0 comments

I built a tiny free app to track money saved by skipping small purchases

https://skipd.coffee/
1•dariyam•51m ago•0 comments

Show HN: Imap2gmail – A self-contained mass-migrations orchestrator for Gmail

https://github.com/overflowy/imap2gmail
1•overflowy•53m ago•0 comments

Workbench: A TUI for parallel coding agents

https://github.com/erikqu/workbench-cli
3•erikqu•53m ago•1 comments

Assessing GPT-5.6 Sol Against Cybersecurity Benchmarks

https://www.irregular.com/research/assessing-gpt-5.6-sol
1•edanm•55m 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!