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Manipulating AI memory for profit: The rise of AI Recommendation Poisoning

https://www.microsoft.com/en-us/security/blog/2026/02/10/ai-recommendation-poisoning/
1•doener•2m ago•0 comments

European Space Agency, China achieve gigabit links to geostationary satellites

https://www.theregister.com/2026/03/04/gigabit_laser_links_geostationary_satellites/
1•pseudolus•3m ago•0 comments

Just Use Postgres

https://nesbitt.io/2026/03/10/just-use-postgres.html
2•watchful_moose•3m ago•0 comments

Ask HN: Agencies/MSPs, how do you manage VPN access across many clients?

1•k4roshi•3m ago•0 comments

I (Still) Use Aider in 2026

https://semyonsinchenko.github.io/ssinchenko/post/aider_2026_and_other_topics/
1•s-sem•3m ago•0 comments

Why should operating systems and websites track the user age?

https://wiki.alcidesfonseca.com/blog/age-verification-in-operating-systems-and-the-internet/
1•alcidesfonseca•5m ago•0 comments

Scientists discover how falling cats almost always make perfect landings

https://phys.org/news/2026-03-japanese-scientists-falling-cats.html
1•pseudolus•6m ago•0 comments

Hacker Infrastructure

1•yjtpesesu2•6m ago•0 comments

Show HN: Aver – a language designed for AI to write and humans to review

https://github.com/jasisz/aver
1•jasisz•6m ago•1 comments

Getweeks: A life calendar that connects your goals to weekly lifestyle changes

https://www.getweeks.com/fr
1•benlatger•9m ago•1 comments

Wikipedia faces a double threat: the rise of AI and the decline of local media

https://www.cbc.ca/radio/sunday/wikipedia-25-year-ai-effect-9.7117795
1•1vuio0pswjnm7•10m ago•0 comments

'Demand Management' is doomed

https://loosemore.com/2026/03/11/demand-management-is-doomed-heres-how-to-get-over-it/
1•robin_reala•11m ago•0 comments

The Mini Cheetah Robot (2019)

https://robot-daycare.com/posts/2019-12-16-the-mini-cheetah-robot/
1•o4c•15m ago•0 comments

Compile and flash an STM32 in 8s from a single prompt using function calling

https://github.com/PrettyMyGirlZyy4Embedded/garycli/tree/main
1•gary_cli•16m ago•0 comments

Lunches.fyi

https://walzr.com/lunches-fyi/
1•coyney•18m ago•0 comments

LMF – LLM Markup Format

https://github.com/sarfraznawaz2005/lmf
1•sarfraz_nawaz•19m ago•0 comments

What nearly broke you in your first year as CTO?

1•Cannonball2134•19m ago•0 comments

Zipp 2001 Restoration

https://robot-daycare.com/posts/zipp-2001-restoration-part-1/
1•o4c•21m ago•0 comments

Black Hat USA 2025 – Breaking Control Flow Integrity by Abusing Modern C++ [video]

https://www.youtube.com/watch?v=hxIPoi4ONNA
1•pjmlp•23m ago•0 comments

As US missiles leave South Korea, the Philippines asks: are we next?

https://www.scmp.com/week-asia/politics/article/3346226/us-missiles-leave-south-korea-philippines...
7•etiam•26m ago•0 comments

Show HN: AIWatermarkDetector: Detect AI Watermarks in text or code

https://github.com/ulrischa/AIWatermarkDetector
1•ulrischa•30m ago•1 comments

Whitehall can't cost digital ID until it decides how to build it

https://www.theregister.com/2026/03/11/digital_id_cost/
1•jjgreen•30m ago•0 comments

Meta Acquires Moltbook

https://arstechnica.com/ai/2026/03/meta-acquires-moltbook-the-ai-agent-social-network/
1•lnrd•30m ago•0 comments

The Anthropic Institute

https://www.anthropic.com/institute
1•pretext•31m ago•0 comments

The return-to-the-office trend backfires

https://thehill.com/opinion/technology/5775420-remote-first-productivity-growth/
4•PretzelFisch•33m ago•0 comments

Tensorlake

https://tensorlake.ai/
1•handfuloflight•34m ago•0 comments

Now I have a clear picture. Let me understand the issue

1•noduerme•35m ago•0 comments

I Need a Partner

2•justYooz•36m ago•1 comments

Ask HN: Which EU country would you recommend for setting up a startup?

1•stein1946•36m ago•1 comments

NextCell – a portable spreadsheet editor inspired by Excel 97

https://redata.dev/nextcell/
3•Suliman123•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•10mo ago

Comments

zljdanceholic•10mo 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!