Study of different h-indices for groups of authors (2008)
In this article, for any group of authors, we define three different h-indices. First, there is the successive h-index h2 based on the ranked list of authors and their h-indices h1 as defined by...
The article studies the influence of the query formulation of a topic on its h-index. In order to generate pure random sets of documents, we used N-grams (N variable) to measure this influence:...
EGGHE, Leo, RAO, Ravichandra, Sahoo, Bibhuti Bhusan
In a recent paper [H. F. MOED, E. GARFIELD: In basic science the percentage of “authoritative”references decreases as bibliographies become shorter. Scientometrics 60 (3) (2004) 295-303] the...
EGGHE, Leo, RAO, Ravichandra, Sahoo, Bibhuti Bhusan
In a recent paper [H. F. MOED, E. GARFIELD: In basic science the percentage of “authoritative”references decreases as bibliographies become shorter. Scientometrics 60 (3) (2004) 295-303] the...
Fractional frequency distributions of, for example, authors with a certain (fractional) number of papers are very irregular and, therefore, not easy to model or to explain. This article gives a first...
Theory and experimentation on the most-recent-reference distribution (2002)
The cumulative distribution of the age of the most-recent-reference distribution is the ldquodualrdquo variant of the first-citation distribution. The latter has been modelled in previous...
The Israel Academy of Sciences and Humanities Edited by (1997)
Bluma C. Peritz, Leo Egghe, Mrs R. Askenazi, Bluma C. Peritz, Leo Egghe, Abraham Bookstein, ...
the
ON THE INFLUENCE OF PRODUCTION ON UTILIZATION FUNCTIONS - OBSOLESCENCE OR INCREASED USE (1995)
EGGHE, Leo, RAO, Ravichandra, ROUSSEAU, Ronald
We study the influence of production on utilization functions. A concrete example of this is the influence of the growth of literature on the obsolescence (aging) of this literature. Here,...
ON THE INFLUENCE OF PRODUCTION ON UTILIZATION FUNCTIONS - OBSOLESCENCE OR INCREASED USE (1995)
EGGHE, Leo, RAO, Ravichandra, ROUSSEAU, Ronald
We study the influence of production on utilization functions. A concrete example of this is the influence of the growth of literature on the obsolescence (aging) of this literature. Here,...
CLASSIFICATION OF GROWTH-MODELS BASED ON GROWTH-RATES AND ITS APPLICATIONS (1992)
In this paper, growth models are classified and characterised using two types of growth rates: from time t to t + 1 and from time t to 2t. They are interesting in themselves but can also be used for...
CITATION AGE DATA AND THE OBSOLESCENCE FUNCTION - FITS AND EXPLANTATIONS (1992)
The paper deals with the shape of the obsolescence function, which one can construct, based on the age data of reference lists. This paper shows that the obsolescence factor (aging factor) a is not a...
CLASSIFICATION OF GROWTH-MODELS BASED ON GROWTH-RATES AND ITS APPLICATIONS (1992)
In this paper, growth models are classified and characterised using two types of growth rates: from time t to t + 1 and from time t to 2t. They are interesting in themselves but can also be used for...
CITATION AGE DATA AND THE OBSOLESCENCE FUNCTION - FITS AND EXPLANTATIONS (1992)
The paper deals with the shape of the obsolescence function, which one can construct, based on the age data of reference lists. This paper shows that the obsolescence factor (aging factor) a is not a...
Empirical series of journal h-indices: the JCR category Horticulture as a case study
Liu, Yuxian, RAO, Ravichandra, ROUSSEAU, Ronald
Two types of series of h-indices for journals published in the field of Horticulture during the period 1998-2007 are calculated. Type I h-indices are based on yearly data, while type II h-indices use...