Slack AI Training with Customer Data

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Slack's mission is to simplify work life while prioritizing customer data privacy and security, using machine learning and artificial intelligence in limited ways to enhance its product. The company has guiding principles and technical controls in place to prevent data leaks, offers customers choices around model training, and aggregates data to ensure anonymity when updating services.

The Forged Apple Employee Badge

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A person sold an Apple Employee #10 badge, claiming it was authentic, but Chris Espinosa, Apple Employee #8, suspected it was fake and the buyer eventually discovered several inconsistencies. The seller made mistakes and eBay failed to take action despite multiple reports of fraud.

Moment: A Family of Open Time-Series Foundation Models

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
We introduce MOMENT, a family of open-source foundation models for general-purpose time series analysis. Pre-training large models on time series data is challenging due to (1) the absence of a large and cohesive public time series repository, and (2) diverse time series characteristics which make multi-dataset training onerous. Additionally, (3) experimental benchmarks to evaluate these ...

Llama 3 implemented in pure NumPy

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The Llama 3 model uses NumPy to implement its structure, with a focus on RoPE embedding and RMSNorm normalization. The model's architecture includes Multi-Head Attention, Feed Forward networks, and SwiGLU activation functions, which are used to generate tokens one after another during the decoding process.

Improvements to Data Analysis in ChatGPT

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ChatGPT's new features allow users to interact with tables and charts, add files directly from Google Drive and Microsoft OneDrive, and analyze data by writing Python code. The updates include improved data analysis capabilities, customizable charts, and enhanced collaboration tools for ChatGPT Plus, Team, and Enterprise users.

Egypt's pyramids may have been built on a long-lost branch of the Nile

https://media.nature.com/lw767/magazine-assets/d41586-024-01449-y/d41586-024-01449-y_27097740.jpg
Researchers have discovered an ancient branch of the Nile River, named Ahramat Branch, which once flowed near many major pyramid sites in Egypt. The discovery suggests that ancient Egyptians may have used boats to transport building materials rather than carrying them over land, providing new insights into their construction methods and daily life.

Google Gemini: Context Caching

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Gemini API's context caching feature reduces request costs by caching repeat content with high input token counts. It's a paid feature, billed based on cache token count and suitable for scenarios with repeated references to initial contexts.

Exit Strategy: The Case for Single-Stair Egress

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American land-use reformers aim to address housing shortages by amending zoning codes and building codes, specifically allowing single-stair apartment buildings, which were once common in the US but are now banned due to fire safety regulations. By re-legalizing these designs, multifamily housing can be built cost-effectively on urban sites that would otherwise be developed as single-family homes.
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DeviantArt, a 24-year-old social network for artists, has been accused of promoting artificial intelligence-generated art and allowing bots to buy and sell artwork on its platform, leading to outrage among its community. The site's A.I. integrations have also led to lawsuits from artists who claim their work was scraped without permission and used to train generative-A.I. models, highlighting ...
https://www.potaroo.net/ispcol/2024-05/starlink-tcp-fig1.png
Digital communications systems always represent a collection of design trade-offs. Maximising one characteristic of a system may impair others, and various communications services may chose to optimise different performance parameters based on the intersection these design decisions with the physical characteristics of the communications medium. In this article I’ll look at the Starlink ...

Build WebGPU Apps Today with PlayCanvas

https://blog.playcanvas.com/assets/images/editor-webgpu-86041b7f4db9c53139d1883799815a85.png
PlayCanvas Editor now supports WebGPU, which offers improved performance and functionality, with Chrome and Edge browsers already enabled. To opt-in to WebGPU support, update Graphics Devices to include WebGPU (beta) in your project's settings, and provide feedback on any issues or feature requests.

Using Llamafiles for Embeddings in Local RAG Applications

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The authors recommend three embedding models for scaleable retrieval-augmented generation (RAG) on local hardware, considering factors such as model size, memory constraints, and document length. They also explain why they chose these models and provide a brief overview of their performance on RAG-relevant tasks, highlighting the importance of considering multiple metrics when evaluating model quality.

The United States of Avocado

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My infant is six months old, the age when US-based pediatricians, nutritionists, and social media influencers unanimously say that babies should begin eating solid food. How they should be eating is a more divisive topic. Are you in the baby-led weaning camp, the old-is-new method of letting children pick up pieces of solid foods to bring to their mouth on their own? Or do you purée, ...

F* – A Proof-Oriented Programming Language

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F* is a programming language that has been actively researched and applied in various fields, including security, cryptography, and formal methods. The language has evolved significantly since its introduction in 2011, with numerous papers published on its design, implementation, and applications in areas such as verified low-level programming, dependent types, and monadic effects.

LearnLM models tuned for human learning

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Google introduces LearnLM, a new family of models fine-tuned for learning, to enhance educational experiences and support educators. The technology will be integrated into various Google products, including Search, YouTube, and Gemini, to provide personalized learning experiences and help users deepen their understanding of complex topics.

Skio (YC S20) – Subscriptions for Shopify, ReCharge Migrations – Is Hiring

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We value minimal meeting culture, reversible decisions, and high-achieving individuals who question the status quo and drive results. Our company culture prioritizes adventure-driven decision-making, EV-based evaluation, and apolitical discussions to build a legendary company with fun memories.

Štar: an iteration construct for Common Lisp

tar is an extensible and general iteration construct for Common Lisp that aims to be pleasant to use, easy to understand, and fast, with a focus on separating iteration from value accumulation. It allows users to define custom iterators and optimizers, making it a flexible tool for iterating over various data structures.

D3 in Depth

https://www.d3indepth.com/img/visualising-data-with-js/cover.jpg
The book "Visualising Data with JavaScript" teaches data visualization using Chart.js, Leaflet, D3, and React. It covers HTML, SVG, CSS, and JavaScript fundamentals for building web-based data visualizations.

Show HN: Autopilot for my little HTML game called Andromeda Invaders

Smart Pointers in (GNU) C

The user created a smart pointer library in C, inspired by C++'s smart pointers, to manage memory allocation and deallocation with automatic cleanup. The library includes unique_ptr and shared_ptr implementations using metadata and variadic macros for easy usage.

Interactive Visualizations of Rate-Limiting Algorithms

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Rate limiting algorithms control traffic to services by blocking requests that exceed a set limit during a period. Three common algorithms are fixed window, sliding window, and token bucket, each with its own pros and cons for handling bursts and average rates of requests.

Wind farms can offset their emissions within two years, new study shows

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A new study finds that wind farms can offset their carbon emissions within two years, and generate all energy consumed across their lifespan within six months. The research highlights the importance of reducing emissions during the manufacturing process and recommends recycling end-of-life blades to minimize environmental impacts.

History of the Italian Electrical System

https://samuele963.github.io/electrics/images/history/old_line_voltages.png
Italy's electrical system has undergone significant changes over the past century, including multiple voltage and frequency standards, with 120V and 220V being used simultaneously in different regions. The country's dual-supply system, which included separate meters and plugs for lighting and appliances, was eventually phased out in favor of a single standard voltage supply.

A long list of (advanced) JavaScript questions, and their explanations

https://camo.githubusercontent.com/90d7e0a800f423e8e042a55252a744a59cafe8d976d3126da45e0ffa8259078d/68747470733a2f2f692e696d6775722e636f6d2f6b6f356b3066732e706e67
The JavaScript questions and explanations cover various topics such as variable hoisting, scope, functions, classes, prototypes, and more. The examples demonstrate how to use different syntax and features of JavaScript to solve problems or achieve specific results.

Introduction to the gfortran array descriptor / dope vector

Fortran 90 introduced array descriptors to handle arrays with dynamic sizes, which are necessary for assumed-shape and deferred-shape arrays. The array descriptor stores information such as the base address, stride, lower and upper bounds, and data type of each rank in the array.

The Sweet Spot: Maximizing Llama Energy Efficiency

https://jacquesmattheij.com/joulespertoken.png
Limiting GPUs to about 2/3rd of maximum power draw optimizes Joules consumed per token generated without speed penalty. The author used llama.cpp software and measured power consumption to find the "sweet spot" for their dual 3090 + i7 setup, achieving an efficiency of around 225W per GPU.

WD Releases New 6TB 2.5-Inch External Hard Drives – First Upgrade in Seven Years

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The vast majority of laptops nowadays use solid-state drives, which is why the development of new, higher-capacity 2.5-inch hard drives has all but come to a halt. Or rather, it almost has. It seems that the 2.5-inch form factor has a bit more life left in it after all, as today Western Digital has released a slate of new external storage products based on a new, high-capacity 6 TB 2.5-inch ...

Photobox – Free Open Source Google Photos Clone

https://res.cloudinary.com/photoboxdev/image/upload/c_limit,w_3840/f_auto/q_auto/v1/assets/photobox-media-library_qsqtf0?_a=BAVAEyAO0
Use Photobox Creations to create Collages, Animations, and more built on top of Cloudinary transformations to give a new experience to your images. Gain control over how your images are stored using Cloudinary's as the host for all of your images.

Why do CPUs have multiple cache levels? (2016)

The different levels of cache in a computer system are designed to optimize performance, power efficiency, and density by handling varying types of accesses and traffic patterns. Each level has its own unique characteristics, such as size, speed, and access granularity, which are tailored to meet the specific needs of the CPU core or cores it serves.

High-Quality Software Engineering (2007)

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The book "High-Quality Software Engineering" discusses the importance of software quality, particularly in high-reliability environments such as networking and device-level software, where systems must run for months or years without failure. The book covers various aspects of software engineering, including planning, testing, teamwork, and management to achieve high-quality software development.