• Thumbnail for Diffusion map
    Diffusion maps is a dimensionality reduction or feature extraction algorithm introduced by Coifman and Lafon which computes a family of embeddings of a...
    19 KB (2,482 words) - 16:25, 13 June 2025
  • Thumbnail for Diffusion-weighted magnetic resonance imaging
    special kind of DWI, diffusion tensor imaging (DTI), has been used extensively to map white matter tractography in the brain. In diffusion weighted imaging...
    64 KB (9,251 words) - 19:41, 2 May 2025
  • Thumbnail for Nonlinear dimensionality reduction
    sets. Diffusion maps leverages the relationship between heat diffusion and a random walk (Markov Chain); an analogy is drawn between the diffusion operator...
    48 KB (6,119 words) - 04:01, 2 June 2025
  • In machine learning, diffusion models, also known as diffusion-based generative models or score-based generative models, are a class of latent variable...
    84 KB (14,123 words) - 01:54, 6 June 2025
  • representation learning are based on diffusion maps and their extensions to handle multiple modalities. Multi-view diffusion maps address the challenge of achieving...
    15 KB (2,009 words) - 18:48, 21 May 2025
  • Thumbnail for Reaction–diffusion system
    Reaction–diffusion systems are mathematical models that correspond to several physical phenomena. The most common is the change in space and time of the...
    29 KB (3,606 words) - 12:03, 27 February 2025
  • Thumbnail for Baker's map
    conjugate to the horseshoe map. In physics, a chain of coupled baker's maps can be used to model deterministic diffusion. As with many deterministic...
    6 KB (917 words) - 16:19, 5 March 2023
  • Thumbnail for Self-organizing map
    A self-organizing map (SOM) or self-organizing feature map (SOFM) is an unsupervised machine learning technique used to produce a low-dimensional (typically...
    35 KB (4,068 words) - 03:33, 2 June 2025
  • Thumbnail for Kernel density estimation
    discrete Laplace operators on point clouds for manifold learning (e.g. diffusion map). Kernel density estimates are closely related to histograms, but can...
    39 KB (4,618 words) - 09:26, 6 May 2025
  • Thumbnail for Rotational diffusion
    Rotational diffusion is the rotational movement which acts upon any object such as particles, molecules, atoms when present in a fluid, by random changes...
    24 KB (3,967 words) - 09:45, 22 May 2025
  • Thumbnail for Atkinson dithering
    original Macintosh computer. The algorithm achieves dithering using error diffusion, meaning it pushes (adds) the residual quantization error of a pixel onto...
    3 KB (310 words) - 06:48, 22 April 2025
  • Thumbnail for Tractography
    using data collected by diffusion MRI. It uses special techniques of magnetic resonance imaging (MRI) and computer-based diffusion MRI. The results are presented...
    9 KB (929 words) - 07:37, 28 July 2024
  • deformation mechanism map will be larger than in maps with very small grains. Additionally, the larger the grains, the less diffusional creep and thus the...
    32 KB (4,150 words) - 18:57, 22 May 2025
  • Thumbnail for Cartogram
    Michael T.; Newman, M.E.J. (May 18, 2004). "Diffusion-based Method for Producing Density-Equalizing Maps". Proceedings of the National Academy of Sciences...
    41 KB (4,113 words) - 16:45, 10 March 2025
  • Thumbnail for Dyadic transformation
    transformation (also known as the dyadic map, bit shift map, 2x mod 1 map, Bernoulli map, doubling map or sawtooth map) is the mapping (i.e., recurrence relation)...
    24 KB (4,718 words) - 15:26, 6 January 2025
  • Thumbnail for Subsurface scattering
    then be processed and reapplied to the model as a light map. To simulate diffusion, the light map texture can simply be blurred. Rendering the lighting...
    10 KB (1,201 words) - 12:20, 18 May 2024
  • Thumbnail for Artificial intelligence visual art
    of the 2020s, text-to-image models such as Midjourney, DALL-E, Stable Diffusion, and FLUX.1 became widely available to the public, allowing users to quickly...
    101 KB (9,581 words) - 21:45, 13 June 2025
  • The Society for the Diffusion of Useful Knowledge (SDUK) was founded in London in 1826, mainly at the instigation of Whig MP Henry Brougham, with the...
    20 KB (2,412 words) - 14:08, 21 September 2024
  • Isomap, which uses geodesic distances in the data space; diffusion maps, which use diffusion distances in the data space; t-distributed stochastic neighbor...
    21 KB (2,248 words) - 07:14, 18 April 2025
  • The Bass model or Bass diffusion model was developed by Frank Bass. It consists of a simple differential equation that describes the process of how new...
    18 KB (2,876 words) - 06:43, 25 May 2025
  • cells by type. Another example is the diffusion pseudotime (DPT) algorithm, which uses a diffusion map and diffusion process. Another class of methods such...
    48 KB (5,796 words) - 16:16, 18 April 2025
  • Thumbnail for Text-to-image model
    models—such as OpenAI's DALL-E 2, Google Brain's Imagen, Stability AI's Stable Diffusion, and Midjourney—began to be considered to approach the quality of real...
    20 KB (1,925 words) - 03:18, 7 June 2025
  • In applied mathematics, Arnold diffusion is the phenomenon of instability of nearly-integrable Hamiltonian systems. The phenomenon is named after Vladimir...
    12 KB (1,578 words) - 02:28, 13 June 2025
  • Thumbnail for Fertile Crescent
    influence, contrary to former suggestions. The studies further suggest a diffusion of this diverse population away from the Fertile Crescent, with the early...
    36 KB (3,566 words) - 13:34, 26 May 2025
  • also may be used to form images of non-living objects, such as mummies. Diffusion MRI and functional MRI extend the utility of MRI to capture neuronal tracts...
    93 KB (10,805 words) - 02:16, 14 June 2025
  • Thumbnail for Shogun (toolbox)
    Kernel Local Tangent Space Alignment, Multidimensional Scaling, Isomap, Diffusion Maps, Laplacian Eigenmaps Online learning algorithms such as SGD-QN, Vowpal...
    5 KB (468 words) - 06:14, 16 February 2025
  • Thumbnail for Trajectory inference
    a linear graph. Wishbone combines principal component analysis and diffusion maps to achieve dimensionality reduction then also creates a KNN graph. Waterfall...
    16 KB (1,865 words) - 19:19, 9 October 2024
  • applications, such as identifying factors involved in dangerous driving. Diffusion of innovations Discriminant analysis Marketing research Multidimensional...
    12 KB (1,623 words) - 06:18, 8 November 2023
  • Thumbnail for Shadow mapping
    Shadow mapping (redirect from Shadow map)
    principle used to create a shadow map. The light's view is rendered, storing the depth of every surface it sees (the shadow map). Next, the regular scene is...
    20 KB (2,410 words) - 22:42, 18 February 2025
  • Thumbnail for Zeev Farbman
    Graphics at SIGGRAPH conference. At Hebrew University, he wrote a paper on Diffusion maps for edge-aware image editing. His research on tone mapping of HDR images...
    7 KB (549 words) - 13:54, 24 April 2025