Marian, L; Le Meur, JY; Rajman, M; Vesely, M. 2010. Citation Graph Based Ranking in Invenio. RESEARCH AND ADVANCED TECHNOLOGY FOR DIGITAL LIBRARIES 6273: 236-247

[Eugene Garfield]

Marian, L; Le Meur, JY; Rajman, M; Vesely, M. 2010. Citation Graph Based 
Ranking in Invenio. RESEARCH AND ADVANCED TECHNOLOGY FOR DIGITAL 
LIBRARIES 6273: 236-247. edited by Lalmas, M; Jose, J; Rauber, A; Sebastiani, 
F; Frommholz, I. presented at 14th European Conference on Research and 
Advanced Technology for Digital Libraries in Glasgow, SCOTLAND, SEP 06-10, 
2010.

Author Full Name(s): Marian, Ludmila; Le Meur, Jean-Yves; Rajman, Martin; 
Vesely, Martin
Book series title: Lecture Notes in Computer Science
Language: English
Document Type: Proceedings Paper

Author Keywords: CDS; Invenio; Inspire; citation graph; PageRank; external 
citations; time decay

Abstract: Invenio is the web-based integrated digital library system developed 
at CERN. Within this framework, we present four types of ranking models based 
on the citation graph that complement the simple approach based on citation 
counts: time-dependent citation counts, a relevancy ranking which extends the 
Page Rank model, a time-dependent ranking which combines the freshness of 
citations with Page Rank and a ranking that takes into consideration the 
external citations. We present our analysis and results obtained on two main 
data sets: Inspire and CERN Document Server. Our main contributions are: (i) a 
study of the currently available ranking methods based on the citation graph; 
(ii) the development of new ranking methods that correct some of the identified 
limitations of the current methods such as treating all citations of equal 
importance, not taking time into account or considering the citation graph 
complete; (iii) a detailed study of the key parameters for these ranking 
methods.

Addresses: [Marian, Ludmila; Le Meur, Jean-Yves] European Org Nucl Res, CH-
1211 Geneva 23, Switzerland

E-mail Address: ludmila.marian at cern.ch; jean-Yves.le.meur at cern.ch; 
martin.rajman at epfl.ch; martin.vesely at epfl.ch
ISSN: 0302-9743
ISBN: 978-3-642-15463-8
PDF: http://cdsweb.cern.ch/record/1295598/files/CERN-IT-2010-001.pdf