title: Elastic principal manifolds and their practical applications creator: Gorban, A.N. creator: Zinovyev, A.Yu. subject: Statistical Models description: Principal manifolds defined as lines or surfaces passing through "the middle" of the data distribution serve as useful objects for many practical applications. We propose a new algorithm for fast construction of grid approximations of principal manifolds with given topology. One advantage of the method is a new form of the functional to be minimized, which becomes quadratic at the step of the vertexes positions refinement. This makes the algorithm very effective, especially for parallel implementations. date: 2004-05 type: Preprint type: NonPeerReviewed format: application/pdf identifier: http://cogprints.org/3919/1/0405648.pdf identifier: Gorban, A.N. and Zinovyev, A.Yu. (2004) Elastic principal manifolds and their practical applications. [Preprint] relation: http://cogprints.org/3919/