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Updated: Aug 11, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Blind separation of a mixture of uniformly distributed source signals: A novel approach
1RIKEN Frontier Research Program, Hirosawa 2-1 Wako-shi, Saitama 351-01, Japan. jayanta@zoo.riken.go.jp
Abstract:
A new, efficient algorithm for blind separation of uniformly distributed sources is proposed. The mixing matrix is assumed to be orthogonal by prewhitening the observed signals. The learning rule adaptively estimates the mixing matrix by conceptually rotating a unit hypercube so that all output signal components are contained within or on the hypercube. Under some ideal constraints, it has been theoretically shown that the algorithm is very similar to an ideal O(1/T2) convergent algorithm, which is much faster than the existing O(1/T) convergent algorithms. The algorithm has been generalized to take care of the noisy signals by adaptively dilating the hypercube in conjunction with its rotation.
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