Leo Egghe
2014
A good normalized impact and concentration measure
Leo Egghe
2014 Volume 65 Issue 10
Informetric explanation of some Leiden Ranking graphs
Leo Egghe
2014 Volume 65 Issue 4
2013
Study of the rank- and size-frequency functions in the case of power law growth of sources and items and proof of Heaps' law
Leo Egghe
2013 Volume 49 Issue 1
Corrigendum to "Study of the rank- and size-frequency functions in the case of power law growth of sources and items and proof of Heaps' law" [Inform. Process. Manage 49 (2013) 99-107]
Leo Egghe
2013 Volume 49 Issue 4
Comparative study of four impact measures and qualitative conclusions
Leo Egghe
2013 Volume 49 Issue 4
Theory of the topical coverage of multiple databases
Leo Egghe
2013 Volume 64 Issue 1
Note on a possible decomposition of the h-Index
Leo Egghe
2013 Volume 64 Issue 4
2012
The Hirsch index of a shifted Lotka function and its relation with the impact factor
Leo Egghe
|
Ronald Rousseau
2012 Volume 63 Issue 5
Applications of the generalized law of Benford to informetric data
Leo Egghe
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Raf Guns
2012 Volume 63 Issue 8
Remarks on the paper by A. De Visscher, "what does the g-index really measure?"
Leo Egghe
2012 Volume 63 Issue 10
Erratum
Leo Egghe
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Raf Guns
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Ronald Rousseau
2012 Volume 63 Issue 2
2011
Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution
Leo Egghe
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Ludo Waltman
2011 Volume 47 Issue 2
Thoughts on uncitedness: Nobel laureates and Fields medalists as case studies
Leo Egghe
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Raf Guns
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Ronald Rousseau
2011 Volume 62 Issue 8
2010
On the relation between the association strength and other similarity measures
Leo Egghe
2010 Volume 61 Issue 7
A new short proof of Naranan's theorem, explaining Lotka's law and Zipf's law
Leo Egghe
2010 Volume 61 Issue 12
Influence of adding or deleting items and sources on the h-index
Leo Egghe
2010 Volume 61 Issue 2
Good properties of similarity measures and their complementarity
Leo Egghe
2010 Volume 61 Issue 10
2009
An econometric property of the g-index
Leo Egghe
2009 Volume 45 Issue 4
Mathematical study of h-index sequences
Leo Egghe
2009 Volume 45 Issue 2
A relation between h-index and impact factor in the power-law model
Leo Egghe
|
Liming Liang
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Ronald Rousseau
2009 Volume 60 Issue 11
New relations between similarity measures for vectors based on vector norms
Leo Egghe
2009 Volume 60 Issue 2
A rationale for the Hirsch-index rank-order distribution and a comparison with the impact factor rank-order distribution
Leo Egghe
2009 Volume 60 Issue 10
The relation between Pearson's correlation coefficient r and Salton's cosine measure
Leo Egghe
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Loet Leydesdorff
2009 Volume 60 Issue 5
2008
The measures precision, recall, fallout and miss as a function of the number of retrieved documents and their mutual interrelations
Leo Egghe
2008 Volume 44 Issue 2
An h-index weighted by citation impact
Leo Egghe
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Ronald Rousseau
2008 Volume 44 Issue 2
The influence of the broadness of a query of a topic on its h-index: Models and examples of the h-index of n-grams
Leo Egghe
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I. K. Ravichandra Rao
2008 Volume 59 Issue 10
Mathematical theory of the h- and g-index in case of fractional counting of authorship
Leo Egghe
2008 Volume 59 Issue 10
The influence of transformations on the h-index and the g-index
Leo Egghe
2008 Volume 59 Issue 8
Study of different h-indices for groups of authors
Leo Egghe
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I. K. Ravichandra Rao
2008 Volume 59 Issue 8
Fundamental properties of rhythm sequences
Leo Egghe
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Liming Liang
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Ronald Rousseau
2008 Volume 59 Issue 9
A model for the size-frequency function of coauthor pairs
Leo Egghe
2008 Volume 59 Issue 13
2007
Existence theorem of the quadruple (P, R, F, M): Precision, recall, fallout and miss
Leo Egghe
2007 Volume 43 Issue 1
TOP-curves
Leo Egghe
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Ronald Rousseau
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Sandra Rousseau
2007 Volume 58 Issue 6
Dynamic h-index: The Hirsch index in function of time
Leo Egghe
2007 Volume 58 Issue 3
Uncertainty and information: Foundations of generalized information theory
Leo Egghe
2007 Volume 58 Issue 5
Untangling Herdan's law and Heaps' law: Mathematical and informetric arguments
Leo Egghe
2007 Volume 58 Issue 5
2006
Systems without low-productive sources
Leo Egghe
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Ronald Rousseau
2006 Volume 42 Issue 6
Expansion of the field of informetrics: The second special issue
Leo Egghe
2006 Volume 42 Issue 6
Classical retrieval and overlap measures satisfy the requirements for rankings based on a Lorenz curve
Leo Egghe
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Ronald Rousseau
2006 Volume 42 Issue 1
Properties of the n-overlap vector and n-overlap similarity theory
Leo Egghe
2006 Volume 57 Issue 9
2005
Continuous, weighted Lorenz theory and applications to the study of fractional relative impact factors
Leo Egghe
2005 Volume 41 Issue 6
Expansion of the field of informetrics: Origins and consequences
Leo Egghe
2005 Volume 41 Issue 6
Zipfian and Lotkaian continuous concentration theory
Leo Egghe
2005 Volume 56 Issue 9
The power of power laws and an interpretation of Lotkaian informetric systems as self-similar fractals
Leo Egghe
2005 Volume 56 Issue 7
Relations between the continuous and the discrete Lotka power function
Leo Egghe
2005 Volume 56 Issue 7
2004
Vector retrieval, fuzzy retrieval and the universal fuzzy IR surface for IR evaluation
Leo Egghe
2004 Volume 40 Issue 4
A universal method of information retrieval evaluation: the "missing" link M and the universal IR surface
Leo Egghe
2004 Volume 40 Issue 1
2003
Construction of weak and strong similarity measures for ordered sets of documents using fuzzy set techniques
Leo Egghe
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Christine Michel
2003 Volume 39 Issue 5
a Measure for the Cohesion of Weighted Networks
Leo Egghe
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Ronald Rousseau
2003 Volume 54 Issue 3
Type/Token-Taken informetrics
Leo Egghe
2003 Volume 54 Issue 7
2002
Strong similarity measures for ordered sets of documents in information retrieval
Leo Egghe
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Christine Michel
2002 Volume 38 Issue 6
Sampling and concentration values of incomplete bibliographies
Leo Egghe
2002 Volume 53 Issue 4
Book review: Mathematical foundations of information retrieval
Leo Egghe
2002 Volume 53 Issue 5
Duality revisited: Construction of fractional frequency distributions based on two dual Lotka laws
Leo Egghe
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I. K. Ravichandra Rao
2002 Volume 53 Issue 10
2001
A noninformetric analysis of the relationship between citation age and journal productivity
Leo Egghe
2001 Volume 52 Issue 5
2000
The influence of publication delays on the observed aging distribution of scientific literature
Leo Egghe
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Ronald Rousseau
2000 Volume 51 Issue 2
Methods for accrediting publications to authors or countries: Consequences for evaluation studies
Leo Egghe
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Ronald Rousseau
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Guido Van Hooydonk
2000 Volume 51 Issue 2
Partial orders and measures for language preferences
Leo Egghe
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Ronald Rousseau
2000 Volume 51 Issue 12
Aging, obsolescence, impact, growth, and utilization: Definitions and relations
Leo Egghe
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Ronald Rousseau
2000 Volume 51 Issue 11
1999
On the Law of Zipf-Mandelbrot for Multi-Wort Phrases
Leo Egghe
1999 Volume 50 Issue 3
1998
A Theoretical Study of Recall and Precision Using a Topological Approach to Information Retrieval
Leo Egghe
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Ronald Rousseau
1998 Volume 34 Issue 2-3
Topological Aspects of Information Retrieval
Leo Egghe
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Ronald Rousseau
1998 Volume 49 Issue 13
1997
Price Index and Its Relation to the Mean and Median Reference Age
Leo Egghe
1997 Volume 48 Issue 6
1996
Modelling Multi-Relational Data with Special Attention to the Average Number of Collaborators as a Variable in Informetric Distributions
Leo Egghe
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Ronald Rousseau
1996 Volume 32 Issue 5
Source-Item Production Laws for the Case That Items Have Multiple Sources with Fractional Counting of Credits
Leo Egghe
1996 Volume 47 Issue 10
1995
Sensitivity Aspects of Inequality Measures
Leo Egghe
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Ronald Rousseau
1995 Volume 31 Issue 4
Generalized Success-Breeds-Success Principle Leading to Time-Dependent Informetric Distributions
Leo Egghe
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Ronald Rousseau
1995 Volume 46 Issue 6
1994
A Theory of Continuous Rates and Applications to the Theory of Growth and Obsolescence Rates
Leo Egghe
1994 Volume 30 Issue 2
Special Features of the Author-Publication Relationship and a New Explanation of Lotka's Law Based on Convolution Theory
Leo Egghe
1994 Volume 45 Issue 6
1993
Evolution of Information Production Processes and its Relation to the Lorenz Dominance Order
Leo Egghe
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Ronald Rousseau
1993 Volume 29 Issue 4
Exact Probabilistic and Mathematical Proofs of the Relation Between the Mean μ and the Generalized 80/20-Rule
Leo Egghe
1993 Volume 44 Issue 7
1992
Duality Aspects of the Gini Index for General Information Production Processes
Leo Egghe
1992 Volume 28 Issue 1
Citation Age Data and the Obsolescence Function: Fits and Explanations
Leo Egghe
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I. K. Ravichandra Rao
1992 Volume 28 Issue 2
1991
Theory of collaboration and collaborative measures
Leo Egghe
1991 Volume 27 Issue 2-3
Transfer principles and a classification of concentration measures
Leo Egghe
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Ronald Rousseau
1991 Volume 42 Issue 7
Rational normalization of concentration measures
P. Bonckaert
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Leo Egghe
1991 Volume 42 Issue 10
1990
Applications of the theory of Bradford's Law to the calculation of Leimkuhler's Law and to the completion of bibliographies
Leo Egghe
1990 Volume 41 Issue 7
A note on different Bradford multipliers
Leo Egghe
1990 Volume 41 Issue 3
A New Method for Information Retrieval, Based on the Theory of Relative Concentration
Leo Egghe
SIGIR'90, 13th International Conference on Research and Development in Information Retrieval, Brussels, Belgium, 5-7 September 1990, Proceedings
1988
Concentration places, concentration evolutions, and online information retrieval techniques for calculating them
Leo Egghe
1988 Volume 24 Issue 2
Mathematical relations between impact factors and average number of citations
Leo Egghe
1988 Volume 24 Issue 5
The relative concentration of a journal with respect to a subject and the use of online services in calculating it
Leo Egghe
1988 Volume 39 Issue 4
1987
Pratt's measure for some bibliometric distributions and its relation with the 80/20 rule
Leo Egghe
1987 Volume 38 Issue 4
1986
Co-authors
- Ronald Rousseau 21
- I. K. Ravichandra Rao 4
- Raf Guns 3
- Liming Liang 2
- Christine Michel 2
- show all...