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Ask HN: How is GPU power draw measured at scale?

1•anax32•2m ago•0 comments

The fight against data centers has nothing to do with data centers

https://twitter.com/mcuban/status/2070211760196587534
1•tosh•3m ago•0 comments

Apple hints at more price increases coming later

https://9to5mac.com/2026/06/25/apple-hints-at-more-price-increases-coming-later/
1•virgildotcodes•3m ago•0 comments

ChoiceBeat: The Visual Novel and Interactive Fiction Zine

https://willyelektrix.itch.io/choicebeat-issue-17
1•Schiphol•6m ago•0 comments

Stop generating what you already have

https://aazar.me/posts/stop-generating-what-you-already-have
1•44za12•7m ago•0 comments

A Niche Technology Became a Choke Point for A.I

https://www.nytimes.com/2026/06/26/technology/ai-advanced-chip-packaging-tsmc.html
1•thinkcontext•8m ago•0 comments

Analysed 3k+ AI thought leaders posts for Q2

https://aiweekly.co/recap/q2-2026
1•adu_onemore•9m ago•0 comments

Why AI in the classroom is a catastrophe – Sophie Winkleman [ARC 2026] [video]

https://www.youtube.com/watch?v=yFp5-i5fzyQ
2•yesbut•12m ago•0 comments

OpenAI Codex bombards SSDs with needless write operations, costing millions

https://www.theregister.com/ai-and-ml/2026/06/23/openai-codex-bombards-ssds-with-needless-write-o...
1•YeGoblynQueenne•12m ago•0 comments

Trump administration asks OpenAI to limit next model release

https://www.axios.com/2026/06/25/trump-administration-openai-gpt-model-release
1•FergusArgyll•13m ago•1 comments

$1.4T investment helps China restore freshwater ecosystem's oxygen

https://www.courthousenews.com/1-4-trillion-investment-helps-china-restore-freshwater-ecosystems-...
3•ilreb•16m ago•0 comments

The AI LinkedIn Post Generator That Grows Your Professional Brand

https://elevenwritt.com/blog/ai-linkedin-post-generator
2•piusk•16m ago•2 comments

Domino Tiling: From Dynamic Programming to Finite Fields

https://www.omegasyntax.com/domino/
3•birdculture•22m ago•0 comments

AMD Readies Full Open-Source HDMI 2.1 Support for Linux

https://www.techpowerup.com/348723/amd-readies-full-open-source-hdmi-2-1-support-for-linux
4•tosh•29m ago•1 comments

Windows-Copilot-API; Access GPT-4 and GPT-5 models without API keys or billing

https://github.com/sums001/Windows-Copilot-API
5•vantareed•30m ago•0 comments

Ask HN: Which free video downloader do you trust in 2026?

3•vanshsoni0027•34m ago•3 comments

Strange Knowledgeability

https://contraptions.venkateshrao.com/p/strange-knowledgeability
2•jger15•34m ago•0 comments

The Vim Learning Curve Is a Myth

https://thoughtbot.com/blog/the-vim-learning-curve-is-a-myth
4•tzury•35m ago•1 comments

The AI Productivity Trap Is More Output

https://www.vincentschmalbach.com/the-ai-productivity-trap-is-more-output/
2•vincent_s•38m ago•0 comments

Show HN: Unofficial cross-platform Shure MV client

https://github.com/Humblemonk/shurectl
2•PennRobotics•39m ago•0 comments

Show HN: Yet another self-hosted web analytics with no UI but MCP

https://yetanotherwebanalytics.dev/
3•le_chuck•40m ago•0 comments

Cali BioLab Peptides

https://www.calibiolabpeptides.com/
2•annweslay11•43m ago•0 comments

Continuous Enforcement and Continuous Verification

https://aguilar-pelaez.co.uk/continuous-enforcement-continuous-verification.html
3•r4vik•44m ago•0 comments

Optimal Travel App

https://web.docvalidity.com
3•TripCheck•46m ago•0 comments

Building a live football community is much harder than I expected

https://footychat.app/
2•olympikesoft•46m ago•0 comments

Llama.cpp flags auto-tuning tool

https://github.com/raketenkater/ggrun
2•raketenkater•48m ago•0 comments

You must be This Tall to Ride

https://www.jacquescorbytuech.com/writing/you-must-be-tall-ride
2•iamacyborg•49m ago•0 comments

Agentlint – A security scanner for MCP server configs

https://github.com/Leporis14/agentlint
2•leporis14•50m ago•0 comments

AI Search Engine Exa Raises $250M Series C

https://exa.ai/blog/announcing-series-c
2•ankitg12•53m ago•0 comments

MDLight: 14MB Markdown reader (Wails, Go and Svelte) – no vaults or plugins

https://github.com/mdlight-dev/mdlight/
3•ZuhayrBarhoumi•54m 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!