Vinkler P "The pi-index: a new indicator for assessing scientific impact " Journal of Information Science 35(5):602-612, October 2009

[Eugene Garfield]

e-MAIL:  pvinkler at chemres.hu     

TITLE : The pi-index: a new indicator for assessing scientific impact 
  
AUTHOR :  Vinkler P (Vinkler, Peter)1 

SOURCE :  JOURNAL OF INFORMATION SCIENCE    Volume: 35    Issue: 5    
Pages: 602-612    Published: OCT 2009    

ABSTRACT: 
There are several simple and sophisticated scientometric indicators 
generally applied in the literature (e.g. total number of publications and 
citations, citations per journal paper, relative citedness indexes, Hirsch 
index, etc.), which may characterize the publications of scientists both 
qualitatively and quantitatively. The calculation methods generally use 
data referring to the total set of papers studied. Scientific progress, 
however, may be attributed primarily to information in the highly cited 
publications. Therefore, a new indicator (pi-index) is suggested for 
comparative assessment of scientists active in similar subject fields. The 
pi-index is equal to one hundredth of the number of citations obtained to 
the top square root of the total number of journal papers ('elite set of 
papers') ranked by the decreasing number of citations. The relation of the 
pi-index to other indexes and its dependence on the field is studied, using 
data of journal papers of 'highly cited researchers'. 

Reprint Address: Vinkler, P (reprint author), , POB 17, H-1525 Budapest, 
Hungary  
Addresses:   
1. Hungarian Acad Sci, Chem Res Ctr, H-1051 Budapest, Hungary  
E-mail Addresses: pvinkler at chemres.hu     
Publisher: SAGE PUBLICATIONS LTD, 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 
1SP, ENGLAND    
IDS Number: 494GX    
ISSN: 0165-5515    
DOI: 10.1177/0165551509103601  

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