Published on: 2025-04-25 12:57:42
antirez 2 hours ago. 3506 views. About three years ago I saw a quite curious and interesting post on Hacker News. A student, Christopher Tarry, was able to use cosine similarity against a vector of top words frequencies in comments, in order to detect similar HN accounts — and, sometimes, even accounts actually controlled by the same user, that is, fake accounts used to uncover the identity of the writer. This is the original post: https://news.ycombinator.com/item?id=33755016 I was not aware,
Keywords: used user vector word words
Find related items on AmazonPublished on: 2025-04-26 10:01:41
Let's remove Quaternions from every 3D Engine (An Interactive Introduction to Rotors from Geometric Algebra) The clearest explanation of 3D geometric algebra within 15 minutes that I've seen so far —BrokenSymmetry I am sold. While I can understand quaternions to an extent, this way of thinking is a much more intuitive and elegant approach. —Jack Rasksilver This sets a high standard for educational material, and is a shining example of how we can improve education with today's technologies. —Se
Keywords: mathbf product vector vectors wedge
Find related items on AmazonPublished on: 2025-04-23 11:54:53
A flowing WebGL gradient, deconstructed April 12, 2025 A few weeks ago I embarked on a journey to create a flowing gradient effect — here’s what I ended up making: Loading canvas... This effect is written in a WebGL shader using noise functions and some clever math. In this post, I’ll break it down step by step. You need no prior knowledge of WebGL or shaders — we’ll start by building a mental model for writing shaders and then recreate the effect from scratch. We’ll cover a lot in this pos
Keywords: canvas color float noise vec3
Find related items on AmazonPublished on: 2025-04-30 21:42:16
✊ Unleashing the Power of Reinforcement Learning for Math and Code Reasoners 🤖 🔥 News April 13, 2025 : We release the Skywork-OR1 (Open Reasoner 1) series of models, including Skywork-OR1-Math-7B , Skywork-OR1-32B-Preview , and Skywork-OR1-7B-Preview . We open-source 🤗 Model weights: Skywork-OR1-Math-7B , Skywork-OR1-32B-Preview , Skywork-OR1-7B-Preview 🤗 Training data: Skywork-OR1-RL-Data (Coming Soon) 🧑💻 Code: Skywork-OR1 We also release a Notion Blog to share detailed training recipes and
Keywords: 7b livecodebench math or1 skywork
Find related items on AmazonPublished on: 2025-05-02 06:25:13
In computer graphics, we rarely encounter continuous data. We often work with digital data, and in the context of geometric modeling, this means we typically work with polygon meshes rather than procedural surfaces like Bézier patches. The most popular technique for constructing digital three-dimensional objects in dedicated modeling software is polygon modeling. The result of the creation phase is a set of polygons (mesh), where the polygons in the mesh can share vertices and edges with other p
Keywords: beta float gamma shader vec
Find related items on AmazonPublished on: 2025-05-09 06:13:11
This post from Rive's Head of Runtime Chris Dalton shows how we built a fully vector-based feathering system from scratch. It’s a deep dive into the Rive Renderer, why it’s more performant, and how it solves a problem that legacy specs never could. March, 2024. GDC. I was talking to a colleague when Sarah Warn , our VP of Growth, came over and asked, “Hey, could you please do glows and shadows?” She wasn’t asking on a whim. Designers had been requesting this for a while. She knew that if we shi
Keywords: blur edges gaussian rive vector
Find related items on AmazonPublished on: 2025-05-23 11:01:22
Brought to you by explained.ai The Matrix Calculus You Need For Deep Learning Terence Parr and Jeremy Howard (Terence is a tech lead at Google and ex-Professor of computer/data science in University of San Francisco's MS in Data Science program. You might know Terence as the creator of the ANTLR parser generator. For more material, see Jeremy's fast.ai courses and University of San Francisco's Data Institute in-person version of the deep learning course.) Please send comments, suggestions,
Keywords: chain derivative function rule vector
Find related items on AmazonPublished on: 2025-05-29 06:10:30
Sharding pgvector Mar 25th, 2025 Lev Kokotov If you find yourself working with embeddings, you’ve shopped around for a vector database. pgvector is a great option if you’re using Postgres already. Once you reach a certain scale (about a million arrays), building indices starts taking a long time. Some workarounds, like parallel workers, help, but you still need to fit the whole graph in memory. The solution to lots of data is more compute, so we sharded pgvector. In this context, we’re speci
Keywords: centroids ivfflat sharding using vector
Find related items on AmazonPublished on: 2025-06-03 10:52:21
Posted Sat Mar 22, 2025 2:57 pm Both the light pen and goggles mentioned in the article were in fact produced and sold for a brief time. Believe it or not, the Vectrex stand-alone unit can now be transformed into a home computer! With the assistance of a new keyboard developed by General Consumer Electronics, the plug-in adds 16K ROM and 16K RAM to the unit, and even incorporates a 65-key typewriter-style keyboard. Software for the computer is made on wafer-tapes, providing for 128K bytes
Keywords: article computer keyboard storage vectrex
Find related items on AmazonPublished on: 2025-06-07 12:41:35
A Simple Physics Engine in GoLang ☻ Introduction Physix.go is a simple, easy-to-use, and fast physics engine written in GoLang. It provides functions to perform physics calculations efficiently, including particle-based physics simulations. Features Vector Calculations Physics Calculations Spring Dynamics Easy to use with Ebiten.go Getting Started Prerequisites GoLang must be installed. Ebiten must be installed. Installation To start, clone this project: git clone https://github.co
Keywords: collision physix rigidbody var vector
Find related items on AmazonPublished on: 2025-06-06 02:25:28
One of the most annoying things about programming in C is the lack of support for generic types, also known as parametric polymorphism. Not to be confused with the abomination that is _Generic. I wish C had something like the following: struct Vector<T> { T* data; size_t capacity; size_t length; }; void vector_resize<T>(Vector<T>* v, size_t capacity) { v->data = realloc(v->data, capacity * sizeof(T)); v->capacity = capacity; } void vector_append<T>(Vector<T>* v, T element) { if (v->length >= v
Keywords: capacity data length size_t vector
Find related items on AmazonPublished on: 2025-06-11 21:14:04
A while back I was looking for a vector database that would work across Windows / Mac / Linux platforms. Some of the options required specific processors like Intel. I am curious if there are any alternatives to a Vector DB that can run cross platform and are easy to setup?
Keywords: alternatives cross curious db vector
Find related items on AmazonPublished on: 2025-06-14 19:32:53
Robert Vanderbei has written a beautiful series of articles and talks about a method for finding the radius of the earth based on a single photograph of a sunset over a large, calm lake. Vanderbei’s analysis is an elegant and subtle exercise in classical trigonometry. In this post, I would like to present an alternative analysis in a different language: Geometric Algebra. I believe that geometric algebra is a more powerful system for formulating and solving trigonometry problems than the classi
Keywords: algebra geometric left product vectors
Find related items on AmazonPublished on: 2025-06-23 10:20:20
Published: Mar 8, 2025 at To understand how an AI can understand that the word “cat” is similar to “kitten,” you must realize cosine similarity. In short, with the help of embeddings, we can represent words as vectors in a high-dimensional space. If the word “cat” is represented as a vector [1, 0, 0], the word “kitten” would be represented as [1, 0, 1]. Now, we can use cosine similarity to measure the similarity between the two vectors. In this blog post, we will break down the concept of cosin
Keywords: cosine similarity veca vecb vectors
Find related items on AmazonPublished on: 2025-06-26 22:54:14
is a senior reporter focusing on wearables, health tech, and more with 13 years of experience. Before coming to The Verge, she worked for Gizmodo and PC Magazine. AliveCor has suffered another setback in its long-running patent case against Apple. Today, the US Court of Appeals for the Federal Circuit has upheld a decision that the medical device maker’s EKG patents are not actually patentable. As a result, the Apple Watch won’t face a second import ban from the International Trade Commission (
Keywords: alivecor apple ban import itc
Find related items on AmazonPublished on: 2025-06-27 03:29:04
Apple and health technology company AliveCor have been embroiled in multiple legal battles for years, including a back-and-forth case with the International Trade Commission. In a decision today, the US Court of Appeals for the Federal Circuit upheld a previous decision from the US Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB) that found the three AliveCor patents at the center of its ITC case to be unpatentable. In 2021, AliveCor went to the ITC to accuse Apple of infring
Keywords: alivecor apple itc patents ptab
Find related items on AmazonPublished on: 2025-07-08 13:24:30
Introduction The last few weeks, OpenGL has caught my eye (frankly, it was a hiring challenge that nerd sniped me). I had 0 experience with OpenGL whatsover and thought that this might be a good time to give graphics a shot! If nothing I’ll at least revise the graphics concepts that I’ve long forgotten after my 6th Semester. However, I should mention that this post is not intended to be a learning guide for OpenGL or WASM, I have attached resources in the end for the same. This is supposed to
Keywords: 20 sphere spheres texture vec3
Find related items on AmazonPublished on: 2025-07-08 14:24:19
Transplanting insulin-producing cells along with engineered blood-vessel-forming cells has successfully reversed type 1 diabetes, according to a new preclinical study. With further testing, the novel approach could one day cure the as-yet incurable condition. The pancreatic islet is the only human tissue that produces insulin in response to rising blood glucose levels. In type 1 diabetes, the immune system attacks and slowly destroys these islets, leading to insulin deficiency. Remarkable progr
Keywords: blood insulin islets vecs vessels
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