Technical Reports

The ICICS/CS Reading Room

UBC CS TR-2007-27 Summary

An Inner/Outer Stationary Iteration for Computing PageRank, December 20, 2007 Andrew P. Gray, Chen Greif and Tracy Lau, 12 pages

We present a stationary iterative scheme for PageRank computation. The algorithm is based on a linear system formulation of the problem, uses inner/outer iterations, and amounts to a simple preconditioning technique. It is simple, can be easily implemented and parallelized, and requires minimal storage overhead. Convergence analysis shows that the algorithm is effective for a crude inner tolerance and is not particularly sensitive to the choice of the parameters involved. Numerical examples featuring matrices of dimensions up to approximately $107$ confirm the analytical results and demonstrate the accelerated convergence of the algorithm compared to the power method.

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