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Ask HN: In a world with AI agents how has software task estimation changed?

1•yalogin•49s ago•0 comments

Web platform support is returning to Unreal Engine

https://twitter.com/UnrealEngine/status/2117603978489811012
5•astlouis44•1m ago•0 comments

I Performed Forensics on a Server and It Got Somebody Fired

https://louwrentius.com/i-performed-forensics-on-a-server-and-it-got-somebody-fired.html
1•louwrentius•1m ago•0 comments

Show HN: QuanterLab, describe a trading strategy, watch it build in front of you

https://quanterlab.com/
1•serhatgirgin•2m ago•0 comments

Nordstjernen, Northstar, Southstar: minimalist webbrowsers in C and Rust

https://nordstjernen.org/
1•Propelloni•2m ago•1 comments

Show HN: I moved to Barcelona and outgrew Duolingo, so I built this

https://noentiendo.app
1•moritzme_•3m ago•0 comments

Show HN: PDF Reading, Annotation and Signing Inside Your Markdown Notes

https://blog.etherpk.com/pdf-reading-annotation-and-signing-inside-your-markdown-notes
1•gb2d_hn•3m ago•0 comments

Show HN: I built Postraid to help founders create social media content with AI

https://www.postraid.com
1•Z4cki•3m ago•1 comments

Show HN: Green tests are not proof – verifier for C/C++ and firmware fixes

https://unfix.dev/
1•u-pump•4m ago•0 comments

My boy filling out applications but My nieces and Daughter

https://twitter.com/WomanDefiner/status/2118053619790455016
1•bilsbie•6m ago•0 comments

Show HN: Droplis – a one click logic game

https://droplis.lalo.li/
2•franze•8m ago•0 comments

Hard to Fool: A bounded LLM research loop for quantitative finance

https://arxiv.org/abs/2611.06607
1•henryzhangpku•9m ago•0 comments

Post-Quantum Questions to Ask Your Vendors

https://www.cisa.gov/resources-tools/resources/post-quantum-questions-ask-your-vendors
1•dboreham•9m ago•0 comments

Show HN: Radio Dystopia

https://radiodystopia.com/
1•drcode•10m ago•0 comments

Software as a Garden

https://carllapierre.com/blog/software-as-a-garden
1•staffor•10m ago•0 comments

Mizu – zero-copy parallel R and Python over shared memory

https://github.com/shikokuchuo/pymizu
3•cscheid•10m ago•0 comments

A gleam implementation of Solitare encryption scheme

https://code.mfashby.net/solitare/file/src/solitare.gleam.html
1•speckx•11m ago•0 comments

Raising the bar for 8 GB Windows 11 PCs: what's improved and how to get it

https://blogs.windows.com/windowsexperience/2026/11/03/raising-the-bar-for-8-gb-windows-11-pcs-wh...
2•taubek•11m ago•0 comments

Show HN: EpubCC, PDF to ePub that beats Calibre on 14/19 PDFs (loses on Arabic)

https://epubcc.com/
1•lou_alcala•11m ago•0 comments

Together AI Compiler for Inference

https://www.together.ai/blog/together-compiler-continual-compilation-for-ai-inference
1•sha_rad•12m ago•0 comments

A writing app that helps you spot what could be clearer and how to improve

https://yukiwriter.com/
2•partsch•12m ago•1 comments

Show HN: Revline – An open-source AI-native video editor

https://tryrevline.com
1•ZuraMakaradzeHe•13m ago•0 comments

Canva layoffs: design giant to cut or relocate more than 1,200 jobs

https://www.theguardian.com/australia-news/2026/nov/04/canva-layoffs-job-cuts-restructure
3•pseudolus•13m ago•0 comments

I Gave Claude Code a Realtime Voice Mode on My MacBook

https://www.storminthecastle.com/posts/claude-voice/
1•johnrobinsn•13m ago•0 comments

French blood banks hit alongside cyberattack on European supermarkets

https://www.yahoo.com/news/world/articles/several-french-blood-banks-hit-124448641.html
1•pseudolus•14m ago•0 comments

Batman's bike could be yours, if you have a spare $1.2 million

https://www.cnn.com/2026/11/05/entertainment/batman-batpod-auction-scli-intl
1•cisc•16m ago•0 comments

Show HN: Engine-X – Interactive 3D machines you can take apart in the browser

https://engx3d.com/
1•parth_mecheng•16m ago•0 comments

Bluesky was right all along and will accept your apology any time

https://www.fastcompany.com/91635647/bluesky-was-right-all-along-and-will-accept-your-apology-any...
2•donohoe•16m ago•0 comments

Show HN: Isoform – open-source Mac app that learns you and works as you

https://github.com/yubozhao/isoform
1•yubozhao•17m ago•1 comments

First Paper to Link CO2 and Global Warming (1856) (2019)

https://publicdomainreview.org/collection/first-paper-to-link-co2-and-global-warming-by-eunice-fo...
1•zenincognito•18m 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!