Results 111 to 120 of about 196,468 (204)
Frontiers in Applied Mathematics and StatisticsTemporal text data, such as news articles or Twitter feeds, often comprises a mixture of long-lasting trends and transient topics. Effective topic modeling strategies should detect both types and clearly locate them in time.
Lara Kassab +6 more
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Plastic tensor networks for interpretable generative modeling
Machine Learning: Science and TechnologyA structural optimization scheme for a single-layer nonnegative adaptive tensor tree (NATT) that models a target probability distribution is proposed as an alternative paradigm for generative modeling.
Katsuya O Akamatsu +3 more
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Doubly Nonnegative Tensors, Completely Positive Tensors and Applications
, 2015 The concept of double nonnegativity of matrices is generalized to doubly nonnegative tensors by means of the nonnegativity of all entries and $H$-eigenvalues. This generalization is defined for tensors of any order (even or odd), while it reduces to the class of nonnegative positive semidefinite tensors in the even order case.
Luo, Ziyan, Qi, Liqun
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NONNEGATIVE TENSOR FACTORIZATION FOR CONTINUOUS EEG CLASSIFICATION
, 2008 In this paper we present a method for continuous EEG classification, where we employ nonnegative tensor factorization (NTF) to determine discriminative spectral features and use the Viterbi algorithm to continuously classify multiple mental tasks.
Andrzej Cichocki +3 more
core
Nonnegative tensor train for the multicomponent Smoluchowski equation
Computational and Applied MathematicsWe propose an efficient implementation of the numerical tensor-train (TT) based algorithm solving the multicomponent coagulation equation preserving the nonnegativeness of solution. Unnatural negative elements in the constructed approximation arise due to the errors of the low-rank decomposition and discretization scheme.
Sergey A. Matveev, Ilya Tretyak
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, 2018 Summarization: We consider the problem of nonnegative tensor factorization. Our aim is to derive an efficient algorithm that is also suitable for parallel implementation.
Kostoulas Georgios(http://users.isc.tuc.gr/~gkostoulas) +8 more
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Polynomial Approximation on Unbounded Subsets and the Markov Moment Problem
International Journal of Analysis and Applications, 2013 We start this review paper by recalling some known and relatively recent results in polynomial approximation on unbounded subsets. These results allow approximation of nonnegative continuous functions with compact support contained in the first quadrant ...
Octav Olteanu
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New Journal of PhysicsMultiplex networks provide a powerful data structure for capturing diverse relationships among nodes, and the challenge of community detection within these networks has recently attracted considerable attention.
Fengqin Tang +3 more
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Advances in Nonnegative Matrix and Tensor Factorization
Computational Intelligence and Neuroscience, 2008 Andrzej Cichocki +4 more
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Countably many asymptotic tensor ranks [PDF]
In connection with recent work on gaps in the asymptotic subranks of complex tensors the question arose whether the number of nonnegative real numbers that arise as the asymptotic subrank of some complex tensor is countable.
Rupniewski, Filip +2 more
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