Diffusion maps is a dimensionality reduction or feature extraction algorithm introduced by Coifman and Lafon which computes a family of embeddings of a data set into Euclidean space (often low-dimensional) whose coordinates can be computed from the eigenvectors and eigenvalues of a diffusion operator on the data. The Euclidean distance between points in the embedded space is equal to the "diffusion distance" between probability distributions centered at those points. Different from linear dimensionality reduction methods such as principal component analysis (PCA), diffusion maps is part of the family of nonlinear dimensionality reduction methods which focus on discovering the underlying manifold that the data has been sampled from. By integrating local similarities at different scales, diffusion maps give a global description of the data-set. Compared with other methods, the diffusion map algorithm is robust to noise perturbation and computationally inexpensive. (Wikipedia).
Diffusion Models | Paper Explanation | Math Explained
Diffusion Models are generative models just like GANs. In recent times many state-of-the-art works have been released that build on top of diffusion models such as #dalle or #imagen. In this video I give a detailed explanation of how they work. At first I explain the fundamental idea of th
From playlist Paper Explanations
Ultimate Guide to Diffusion Models | ML Coding Series | Denoising Diffusion Probabilistic Models
❤️ Become The AI Epiphany Patreon ❤️ https://www.patreon.com/theaiepiphany 👨👩👧👦 Join our Discord community 👨👩👧👦 https://discord.gg/peBrCpheKE In this 3rd video of my ML coding series, we do a deep dive into diffusion models! Diffusion is the powerhouse behind recent text-to-image g
From playlist Diffusion models
GCSE Science Revision Biology "Diffusion"
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks/ In this video, we look at diffusion. I take you through the concept of diffusion and then we look at three factors that affect the rate of diffusion. Image credits: All images were created by and are the pro
From playlist 9-1 GCSE Biology Paper 1 Cell Biology
Morosov2008 multi-species reaction-diffusion
Andrew Morozov, Shigui Ruan, Bai-Lian Li (2008) "Patterns of patchy spread in multi-species reaction–diffusion models" Ecological Complexity, Volume 5, Issue 4, Pages 313-328. The system shown in Figs. 5-8, with delta varying across the image from 0.095 to 0.15. Run it for yourself in Re
From playlist Ready
Chemistry of Gases (35 of 40) Diffusion of Gases: Basics
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basics of the diffusion of gases.
From playlist CHEMISTRY 10 THE CHEMISTRY OF GASES
Conway's Game of Life is the seed for a diffusion process. Inspired by http://edinburghhacklab.com/GGJ2012/ Created with Ready: https://code.google.com/p/reaction-diffusion/ Open this file in Ready: https://reaction-diffusion.googlecode.com/svn/trunk/Ready/Patterns/Experiments/LifeBlur.vt
From playlist Ready
A (somewhat) new paradigm for mathematics and physics | Diffusion Symmetry 1 | N J Wildberger
The current understanding of symmetry in mathematics and physics is through group theory. However in the last 120 years, a new strand of thought has gradually appeared in a number of disciplines, from as varied as character theory, strongly regular graphs, von Neumann algebras, Hecke algeb
From playlist Diffusion Symmetry: A bridge between mathematics and physics
Conway's Game of Life is the seed for a diffusion process. Inspired by http://edinburghhacklab.com/GGJ2012/ Created with Ready: https://code.google.com/p/reaction-diffusion/ Open this file in Ready: https://reaction-diffusion.googlecode.com/svn/trunk/Ready/Patterns/Experiments/LifeBlur.vt
From playlist Ready
Diffusion Models Beat GANs on Image Synthesis | ML Coding Series | Part 2
❤️ Become The AI Epiphany Patreon ❤️ https://www.patreon.com/theaiepiphany 👨👩👧👦 Join our Discord community 👨👩👧👦 https://discord.gg/peBrCpheKE 4th video in the ML coding series! In this one I continue explaining diffusion models! I cover the "Diffusion Models Beat GANs on Image Synt
From playlist Diffusion models
Neural Sheaf Diffusion: A Topological Perspective on Heterophily and Oversmoothing in GNNs
❤️ Become The AI Epiphany Patreon ❤️ https://www.patreon.com/theaiepiphany 👨👩👧👦 Join our Discord community 👨👩👧👦 https://discord.gg/peBrCpheKE In this video I cover "Neural Sheaf Diffusion: A Topological Perspective on Heterophily and Oversmoothing in GNNs" paper. The paper takes id
From playlist Graph Neural Nets
Abhishek Singharoy - Cryo-EM: Ensemble refinement, free-energy landscapes and molecular dynamics
Recorded 17 November 2022. Abhishek Singharoy of Arizona State University West presents "Cryo-EM and beyond: Ensemble refinement, free-energy landscapes and molecular dynamics" at IPAM's Cryo-Electron Microscopy and Beyond Workshop. Abstract: Molecular dynamics flexible fitting is popularl
From playlist 2022 Cryo-Electron Microscopy and Beyond
The Vector Heat Method - SIGGRAPH 2019
The Vector Heat Method. Nicholas Sharp, Yousuf Soliman, and Keenan Crane. ACM Trans. on Graph. (2019) Paper: http://www.cs.cmu.edu/~kmcrane/Projects/VectorHeatMethod/paper.pdf Code: https://github.com/nmwsharp/vector-heat-demo This paper describes a method for efficiently computing paral
From playlist Research
How Did Religion Spread Along the Silk Road? Crash Course Geography #31
Today we’re going to talk about the collection of routes known as the Silk Roads, and explore how worldview and other ideas spread along those trade routes. The Silk Roads are responsible for everything from the spices we use when we cook to the cloth we see as beautiful, but today we’re g
From playlist Geography
AMMI 2022 Course "Geometric Deep Learning" - Seminar 4 (Neural Sheaf Diffusion) - Cristian Bodnar
Video recording of the course "Geometric Deep Learning" taught in the African Master in Machine Intelligence in July 2022 Seminar 5 - Neural Sheaf Diffusion - Cristian Bodnar (Cambridge) Slides: https://www.dropbox.com/s/7hyqlwh45bdkv0f/AIMS%202022%20-%20Seminar%204%20-%20Neural%20sheaf
From playlist AMMI Geometric Deep Learning Course - Second Edition (2022)
Arnold diffusion for `complete' families of perturbations with... - Amadeu Delshams
Emerging Topics Working Group Topic: Arnold diffusion for `complete' families of perturbations with two or three independent harmonics Speaker: Amadeu Delshams Affiliation: UPC Date: April 9, 2018 For more videos, please visit http://video.ias.edu
From playlist Mathematics
Ingrid Daubechies: "Bones, Teeth and Animation"
Green Family Lecture Series "Bones, Teeth and Animation" Ingrid Daubechies, Duke University Abstract: The talk describes new distances between pairs of two-dimensional surfaces (embedded in three-dimensional space) that use both local structures and global information in the surfaces. Th
From playlist Public Lectures
In an attempt to create something pretty to look at that people are familiar with, I applied techniques I've learned to the Minecraft rendering pipeline. Code: https://github.com/GarrettGunnell/Minecraft-Shaders Twitter: https://twitter.com/Acerola_t Twitch: https://www.twitch.tv/acerola
From playlist Main Series
Objective Barriers To Passive Transport (Lecture 2) by George Haller
DISCUSSION MEETING WAVES, INSTABILITIES AND MIXING IN ROTATING AND STRATIFIED FLOWS (ONLINE) ORGANIZERS: Thierry Dauxois (CNRS & ENS de Lyon, France), Sylvain Joubaud (ENS de Lyon, France), Manikandan Mathur (IIT Madras, India), Philippe Odier (ENS de Lyon, France) and Anubhab Roy (IIT M
From playlist Waves, Instabilities and Mixing in Rotating and Stratified Flows (ONLINE)
Biologically relevant distances between morphological surfaces representing teeth and bones
Distinguished Visitor Lecture Series Biologically relevant distances between morphological surfaces representing teeth and bones Ingrid Daubechies Duke University, USA
From playlist Distinguished Visitors Lecture Series
Diffusion and Osmosis - Passive and Active Transport With Facilitated Diffusion
This Biology video tutorial discusses diffusion and osmosis. It also mentions the difference between passive and active transport. Diffusion is the movement of any material down the concentration gradient. Osmosis is the diffusion of water. Facilitated diffusion is the movement of mate
From playlist Biology