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Leo Egghe

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2009
72EELeo Egghe: New relations between similarity measures for vectors based on vector norms. JASIST 60(2): 232-239 (2009)
71EELeo Egghe, Loet Leydesdorff: The relation between Pearson's correlation coefficient r and Salton's cosine measure. JASIST 60(5): 1027-1036 (2009)
2008
70EELeo Egghe, Ronald Rousseau: An h-index weighted by citation impact. Inf. Process. Manage. 44(2): 770-780 (2008)
69EELeo Egghe: The measures precision, recall, fallout and miss as a function of the number of retrieved documents and their mutual interrelations. Inf. Process. Manage. 44(2): 856-876 (2008)
68EELeo Egghe: Mathematical theory of the h- and g-index in case of fractional counting of authorship. JASIST 59(10): 1608-1616 (2008)
67EELeo Egghe, I. K. Ravichandra Rao: 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. JASIST 59(10): 1688-1693 (2008)
66EELeo Egghe: A model for the size-frequency function of coauthor pairs. JASIST 59(13): 2133-2137 (2008)
65EELeo Egghe, I. K. Ravichandra Rao: Study of different h-indices for groups of authors. JASIST 59(8): 1276-1281 (2008)
64EELeo Egghe: The influence of transformations on the h-index and the g-index. JASIST 59(8): 1304-1312 (2008)
63EELeo Egghe, Liming Liang, Ronald Rousseau: Fundamental properties of rhythm sequences. JASIST 59(9): 1469-1478 (2008)
2007
62EELeo Egghe: Existence theorem of the quadruple (P, R, F, M): Precision, recall, fallout and miss. Inf. Process. Manage. 43(1): 265-272 (2007)
61EELeo Egghe: Dynamic h-index: The Hirsch index in function of time. JASIST 58(3): 452-454 (2007)
60EELeo Egghe: Untangling Herdan's law and Heaps' law: Mathematical and informetric arguments. JASIST 58(5): 702-709 (2007)
59EELeo Egghe: Uncertainty and information: Foundations of generalized information theory. JASIST 58(5): 756-758 (2007)
58EELeo Egghe, Ronald Rousseau, Sandra Rousseau: TOP-curves. JASIST 58(6): 777-785 (2007)
57EELeo Egghe: Probabilities for encountering genius, basic, ordinary or insignificant papers based on the cumulative nth citation distribution. Scientometrics 70(1): 167-181 (2007)
2006
56EELeo Egghe, Ronald Rousseau: Classical retrieval and overlap measures satisfy the requirements for rankings based on a Lorenz curve. Inf. Process. Manage. 42(1): 106-120 (2006)
55EELeo Egghe: Expansion of the field of informetrics: The second special issue. Inf. Process. Manage. 42(6): 1405-1407 (2006)
54EELeo Egghe, Ronald Rousseau: Systems without low-productive sources. Inf. Process. Manage. 42(6): 1428-1441 (2006)
53EELeo Egghe: Properties of the n-overlap vector and n-overlap similarity theory. JASIST 57(9): 1165-1177 (2006)
52EELeo Egghe, I. K. Ravichandra Rao, Bibhuti Bhusan Sahoo: Proof of a conjecture of Moed and Garfield on authoritative references and extension to non-authoritative references. Scientometrics 66(3): 537-549 (2006)
51EELeo Egghe, Ronald Rousseau: An informetric model for the Hirsch-index. Scientometrics 69(1): 121-129 (2006)
50EELeo Egghe: Theory and practise of the g-index. Scientometrics 69(1): 131-152 (2006)
2005
49EELeo Egghe: Expansion of the field of informetrics: Origins and consequences. Inf. Process. Manage. 41(6): 1311-1316 (2005)
48EELeo Egghe: Continuous, weighted Lorenz theory and applications to the study of fractional relative impact factors. Inf. Process. Manage. 41(6): 1330-1359 (2005)
47EELeo Egghe: Relations between the continuous and the discrete Lotka power function. JASIST 56(7): 664-668 (2005)
46EELeo Egghe: The power of power laws and an interpretation of Lotkaian informetric systems as self-similar fractals. JASIST 56(7): 669-675 (2005)
45EELeo Egghe: Zipfian and Lotkaian continuous concentration theory. JASIST 56(9): 935-945 (2005)
44EELeo Egghe: A characterization of the law of Lotka in terms of sampling. Scientometrics 62(3): 321-328 (2005)
43EELeo Egghe: An explanation of disproportionate growth using linear 3-dimensional informetrics and its relation with the fractal dimension. Scientometrics 63(2): 277-296 (2005)
42EELeo Egghe: The share of items of highly productive sources as a function of the size of the system. Scientometrics 65(3): 275-291 (2005)
2004
41EELeo Egghe: A universal method of information retrieval evaluation: the "missing" link M and the universal IR surface. Inf. Process. Manage. 40(1): 21-30 (2004)
40EELeo Egghe: Vector retrieval, fuzzy retrieval and the universal fuzzy IR surface for IR evaluation. Inf. Process. Manage. 40(4): 603-618 (2004)
39EELeo Egghe: Solution of a problem of Buckland on the influence of obsolescence on scattering. Scientometrics 59(2): 225-232 (2004)
38EELeo Egghe, Ronald Rousseau: How to measure own-group preference? A novel approach to a sociometric problem. Scientometrics 59(2): 233-252 (2004)
37EELeo Egghe: Positive reinforcement and 3-dimensional informetrics. Scientometrics 60(3): 497-509 (2004)
36EELeo Egghe: The source-item coverage of the Lotka function. Scientometrics 61(1): 103-115 (2004)
2003
35EELeo Egghe, Christine Michel: Construction of weak and strong similarity measures for ordered sets of documents using fuzzy set techniques. Inf. Process. Manage. 39(5): 771-807 (2003)
34EELeo Egghe, Ronald Rousseau: a Measure for the Cohesion of Weighted Networks. JASIST 54(3): 193-202 (2003)
33EELeo Egghe: Type/Token-Taken informetrics. JASIST 54(7): 603-610 (2003)
2002
32EELeo Egghe, Christine Michel: Strong similarity measures for ordered sets of documents in information retrieval. Inf. Process. Manage. 38(6): 823-848 (2002)
31 Leo Egghe, I. K. Ravichandra Rao: Duality revisited: Construction of fractional frequency distributions based on two dual Lotka laws. JASIST 53(10): 789-801 (2002)
30 Leo Egghe: Sampling and concentration values of incomplete bibliographies. JASIST 53(4): 271-281 (2002)
29 Leo Egghe: Book review: Mathematical foundations of information retrieval. JASIST 53(5): 409-410 (2002)
2001
28EELeo Egghe, Ronald Rousseau: Elementary Statistics for Library and Information Service Management. Inf. Res. 7(1): (2001)
27 Leo Egghe: A noninformetric analysis of the relationship between citation age and journal productivity. JASIST 52(5): 371-377 (2001)
2000
26 Leo Egghe, Ronald Rousseau: Aging, obsolescence, impact, growth, and utilization: Definitions and relations. JASIS 51(11): 1004-1017 (2000)
25 Leo Egghe, Ronald Rousseau: Partial orders and measures for language preferences. JASIS 51(12): 1123-1130 (2000)
24 Leo Egghe, Ronald Rousseau, Guido Van Hooydonk: Methods for accrediting publications to authors or countries: Consequences for evaluation studies. JASIS 51(2): 145-157 (2000)
23 Leo Egghe, Ronald Rousseau: The influence of publication delays on the observed aging distribution of scientific literature. JASIS 51(2): 158-165 (2000)
1999
22 Leo Egghe: On the Law of Zipf-Mandelbrot for Multi-Wort Phrases. JASIS 50(3): 233-241 (1999)
1998
21 Leo Egghe, Ronald Rousseau: A Theoretical Study of Recall and Precision Using a Topological Approach to Information Retrieval. Inf. Process. Manage. 34(2-3): 191-218 (1998)
20 Leo Egghe, Ronald Rousseau: Topological Aspects of Information Retrieval. JASIS 49(13): 1134-1160 (1998)
1997
19 Leo Egghe: Price Index and Its Relation to the Mean and Median Reference Age. JASIS 48(6): 564-573 (1997)
1996
18 Leo Egghe, Ronald Rousseau: Modelling Multi-Relational Data with Special Attention to the Average Number of Collaborators as a Variable in Informetric Distributions. Inf. Process. Manage. 32(5): 563-571 (1996)
17 Leo Egghe: Source-Item Production Laws for the Case That Items Have Multiple Sources with Fractional Counting of Credits. JASIS 47(10): 730-748 (1996)
1995
16 Leo Egghe, Ronald Rousseau: Sensitivity Aspects of Inequality Measures. Inf. Process. Manage. 31(4): 511-523 (1995)
15 Leo Egghe, Ronald Rousseau: Generalized Success-Breeds-Success Principle Leading to Time-Dependent Informetric Distributions. JASIS 46(6): 426-445 (1995)
1994
14 Leo Egghe: A Theory of Continuous Rates and Applications to the Theory of Growth and Obsolescence Rates. Inf. Process. Manage. 30(2): 279-292 (1994)
13 Leo Egghe: Special Features of the Author-Publication Relationship and a New Explanation of Lotka's Law Based on Convolution Theory. JASIS 45(6): 422-427 (1994)
1993
12 Leo Egghe, Ronald Rousseau: Evolution of Information Production Processes and its Relation to the Lorenz Dominance Order. Inf. Process. Manage. 29(4): 499-514 (1993)
11 Leo Egghe: Exact Probabilistic and Mathematical Proofs of the Relation Between the Mean µ and the Generalized 80/20-Rule. JASIS 44(7): 369-375 (1993)
1992
10 Leo Egghe: Duality Aspects of the Gini Index for General Information Production Processes. Inf. Process. Manage. 28(1): 35-44 (1992)
9 Leo Egghe, I. K. Ravichandra Rao: Citation Age Data and the Obsolescence Function: Fits and Explanations. Inf. Process. Manage. 28(2): 201-218 (1992)
1991
8EELeo Egghe: Theory of collaboration and collaborative measures. Inf. Process. Manage. 27(2-3): 177-202 (1991)
7 P. Bonckaert, Leo Egghe: Rational normalization of concentration measures. JASIS 42(10): 715-722 (1991)
6 Leo Egghe, Ronald Rousseau: Transfer principles and a classification of concentration measures. JASIS 42(7): 479-489 (1991)
1990
5EELeo Egghe: A New Method for Information Retrieval, Based on the Theory of Relative Concentration. SIGIR 1990: 469-493
4 Leo Egghe: A note on different Bradford multipliers. JASIS 41(3): 204-209 (1990)
3 Leo Egghe: Applications of the theory of Bradford's Law to the calculation of Leimkuhler's Law and to the completion of bibliographies. JASIS 41(7): 469-492 (1990)
1988
2EELeo Egghe: Concentration places, concentration evolutions, and online information retrieval techniques for calculating them. Inf. Process. Manage. 24(2): 109-121 (1988)
1EELeo Egghe: Mathematical relations between impact factors and average number of citations. Inf. Process. Manage. 24(5): 567-576 (1988)

Coauthor Index

1P. Bonckaert [7]
2Guido Van Hooydonk [24]
3Loet Leydesdorff [71]
4Liming Liang [63]
5Christine Michel [32] [35]
6I. K. Ravichandra Rao [9] [31] [52] [65] [67]
7Ronald Rousseau [6] [12] [15] [16] [18] [20] [21] [23] [24] [25] [26] [28] [34] [38] [51] [54] [56] [58] [63] [70]
8Sandra Rousseau [58]
9Bibhuti Bhusan Sahoo [52]

Colors in the list of coauthors

Copyright © Sun May 17 03:24:02 2009 by Michael Ley (ley@uni-trier.de)