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Electronic Transactions on Numerical Analysis.

Volume 33, pp. 1-16, 2008.

Copyright2008, Kent State University.

ISSN 1068-9613.

ETNA

Kent State University [email protected]

EVALUATING SCIENTIFIC PRODUCTS BY MEANS OF CITATION-BASED MODELS: A FIRST ANALYSIS AND VALIDATION

DARIO A. BINIy, GIANNA M. DEL CORSOz,ANDFRANCESCO ROMANIz

Dedicated to G´erard Meurant on the occasion of his 60th birthday

Abstract. Some integrated models for ranking scientific publications together with authors and journals are presented and analyzed. The models rely on certain adjacency matrices obtained from the relationships between citations, authors and publications, which together give a suitable irreducible stochastic matrix whose Perron vector provides the ranking. Some perturbation theorems concerning the Perron vectors of nonnegative irreducible matrices are proved. These theoretical results provide a validation of the consistency and effectiveness of our models. Several examples are reported together with some results obtained on a real set of data.

Key words. Page rank, Perron vector, perturbation results, impact factor AMS subject classifications. 65F15

Received January 31, 2008. Accepted April 21, 2008. Published online on October 17, 2008. Recommended by Lothar Reichel.

yDipartimento di Matematica, Universit`a di Pisa, Largo B. Pontecorvo 5, 56127 Pisa, Italy ([email protected]).

zDipartimento di Informatica, Universit`a di Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy (fdelcorso,romanig@di.unipi.it).

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