Rational extrapolation for the PageRank vector
نویسندگان
چکیده
منابع مشابه
Rational extrapolation for the PageRank vector
An important problem in web search is to determine the importance of each page. From the mathematical point of view, this problem consists in finding the nonnegative left eigenvector of a matrix corresponding to its dominant eigenvalue 1. Since this matrix is neither stochastic nor irreducible, the power method has convergence problems. So, the matrix is replaced by a convex combination, depend...
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An important problem in Web search is to determine the importance of each page. This problem consists in computing, by the power method, the left principal eigenvector (the PageRank vector) of a matrix depending on a parameter c which has to be chosen close to 1. However, when c is close to 1, the problem is ill-conditioned, and the power method converges slowly. So, the idea developed in this ...
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 2008
ISSN: 0025-5718,1088-6842
DOI: 10.1090/s0025-5718-08-02086-3