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Numerical Linear Algebra with Applications
Article . 2020 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2019
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Extrapolation methods for fixed‐point multilinear PageRank computations

Extrapolation methods for fixed-point multilinear PageRank computations.
Authors: Stefano Cipolla; Michela Redivo-Zaglia; Francesco Tudisco;

Extrapolation methods for fixed‐point multilinear PageRank computations

Abstract

SummaryNonnegative tensors arise very naturally in many applications that involve large and complex data flows. Due to the relatively small requirement in terms of memory storage and number of operations per step, the (shifted) higher order power method is one of the most commonly used technique for the computation of positive Z‐eigenvectors of this type of tensors. However, unlike the matrix case, the method may fail to converge even for irreducible tensors. Moreover, when it converges, its convergence rate can be very slow. These two drawbacks often make the computation of the eigenvectors demanding or unfeasible for large problems. In this work, we consider a particular class of nonnegative tensors associated with the multilinear PageRank modification of higher order Markov chains. Based on the simplified topological ε‐algorithm in its restarted form, we introduce an extrapolation‐based acceleration of power method type algorithms, namely, the shifted fixed‐point method and the inner‐outer method. The accelerated methods show remarkably better performance, with faster convergence rates and reduced overall computational time. Extensive numerical experiments on synthetic and real‐world datasets demonstrate the advantages of the introduced extrapolation techniques.

Country
United Kingdom
Keywords

Numerical computation of eigenvalues and eigenvectors of matrices, Extrapolation to the limit, deferred corrections, multilinear PageRank, higher order power method, Numerical linear algebra, Numerical Analysis (math.NA), graph, Markov chains (discrete-time Markov processes on discrete state spaces), tensor, 004, 510, extrapolation methods, Multilinear algebra, tensor calculus, FOS: Mathematics, fixed-point, Mathematics - Numerical Analysis, higher-order Markov chain, spacey random surfer, acceleration of convergence

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
23
Top 10%
Top 10%
Top 10%
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