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 | 2013 | |
|---|---|---|
| j135 |      | Leo Egghe: Study of the rank- and size-frequency functions in the case of power law growth of sources and items and proof of Heaps' law. Inf. Process. Manage. 49(1): 99-107 (2013) |
| j134 | | Leo Egghe: Comparative study of four impact measures and qualitative conclusions. Inf. Process. Manage. 49(4): 865-870 (2013) |
| j133 | | Leo Egghe: 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]. Inf. Process. Manage. 49(4): 981 (2013) |
| j132 | | |
| j131 | | |
| j130 | | Leo Egghe: The functional relation between the impact factor and the uncitedness factor revisited. J. Informetrics 7(1): 183-189 (2013) |
| j129 | | Leo Egghe: A mathematical characterization of the Hirsch-index by means of minimal increments. J. Informetrics 7(2): 388-393 (2013) |
| j128 | | Leo Egghe: A rationale for the relation between the citer h-index and the classical h-index of a researcher. Scientometrics 94(3): 873-876 (2013) |
| j127 | | Leo Egghe: Theoretical justification of the central area indices and the central interval indices. Scientometrics 95(1): 25-34 (2013) |
| j126 | | Leo Egghe, Raf Guns, Ronald Rousseau: Measuring co-authors' contribution to an article's visibility. Scientometrics 95(1): 55-67 (2013) |
| 2012 | ||
| j125 | | |
| j124 | | Leo Egghe, Ronald Rousseau: The Hirsch index of a shifted Lotka function and its relation with the impact factor. JASIST 63(5): 1048-1053 (2012) |
| j123 | | |
| j122 | | Leo Egghe: Remarks on the paper by A. De Visscher, "what does the g-index really measure?". JASIST 63(10): 2118-2121 (2012) |
| j121 | | Leo Egghe: Averages of ratios compared to ratios of averages: Mathematical results. J. Informetrics 6(2): 307-317 (2012) |
| j120 | | |
| j119 | | Leo Egghe: Study of rank- and size-frequency functions and their relations in a generalized Naranan framework. Mathematical and Computer Modelling 55(7-8): 1898-1903 (2012) |
| j118 | | Leo Egghe, Ronald Rousseau: Theory and practice of the shifted Lotka function. Scientometrics 91(1): 295-301 (2012) |
| 2011 | ||
| j117 | | Leo Egghe, Ludo Waltman: Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution. Inf. Process. Manage. 47(2): 238-245 (2011) |
| j116 | | Leo Egghe, Raf Guns, Ronald Rousseau: Thoughts on uncitedness: Nobel laureates and Fields medalists as case studies. JASIST 62(8): 1637-1644 (2011) |
| j115 | | Leo Egghe, Lutz Bornmann, Raf Guns: A proposal for a First-Citation-Speed-Index. J. Informetrics 5(1): 181-186 (2011) |
| j114 | | Leo Egghe: Characterizations of the generalized Wu- and Kosmulski-indices in Lotkaian systems. J. Informetrics 5(3): 439-445 (2011) |
| j113 | | Leo Egghe: Mathematical relations of the h-index with other impact measures in a Lotkaian framework. Mathematical and Computer Modelling 53(5-6): 610-616 (2011) |
| j112 | | Leo Egghe: Mathematical derivation of the scale-dependence of the h-index and other h-type indices. Scientometrics 87(2): 287-292 (2011) |
| j111 | | Leo Egghe: The impact factor rank-order distribution revisited. Scientometrics 87(3): 683-685 (2011) |
| j110 | | Leo Egghe: The influence of random removal of sources and items on the h-index. Scientometrics 88(2): 363-370 (2011) |
| j109 | | Leo Egghe: Problems with "natural selection of academic papers". Scientometrics 88(2): 663-667 (2011) |
| j108 | | Leo Egghe: The single publication H-index and the indirect H-index of a researcher. Scientometrics 88(3): 1003-1004 (2011) |
| j107 | | Leo Egghe: The single publication H-index of papers in the Hirsch-core of a researcher and the indirect H-index. Scientometrics 89(3): 727-739 (2011) |
| 2010 | ||
| j106 | | |
| j105 | | Leo Egghe: Influence of adding or deleting items and sources on the h-index. JASIST 61(2): 370-373 (2010) |
| j104 | | Leo Egghe: On the relation between the association strength and other similarity measures. JASIST 61(7): 1502-1504 (2010) |
| j103 | | Leo Egghe: Good properties of similarity measures and their complementarity. JASIST 61(10): 2151-2160 (2010) |
| j102 | | Leo Egghe: A new short proof of Naranan's theorem, explaining Lotka's law and Zipf's law. JASIST 61(12): 2581-2583 (2010) |
| j101 | | Leo Egghe: Characteristic scores and scales based on h-type indices. J. Informetrics 4(1): 14-22 (2010) |
| j100 | | Leo Egghe: Conjugate partitions in informetrics: Lorenz curves, h-type indices, Ferrers graphs and Durfee squares in a discrete and continuous setting. J. Informetrics 4(3): 320-330 (2010) |
| j99 | | Leo Egghe: A model showing the increase in time of the average and median reference age and the decrease in time of the Price Index. Scientometrics 82(2): 243-248 (2010) |
| j98 | | Leo Egghe: Characteristic scores and scales in a Lotkaian framework. Scientometrics 83(2): 455-462 (2010) |
| j97 | | Leo Egghe: The distribution of the uncitedness factor and its functional relation with the impact factor. Scientometrics 83(3): 689-695 (2010) |
| j96 | | Leo Egghe: On the relation between Schubert's h-index of a single paper and its total number of received citations. Scientometrics 84(1): 115-117 (2010) |
| j95 | | |
| 2009 | ||
| j94 | | |
| j93 | | |
| j92 | | Leo Egghe: New relations between similarity measures for vectors based on vector norms. JASIST 60(2): 232-239 (2009) |
| j91 | | Leo Egghe, Loet Leydesdorff: The relation between Pearson's correlation coefficient r and Salton's cosine measure. JASIST 60(5): 1027-1036 (2009) |
| j90 | | Leo Egghe: A rationale for the Hirsch-index rank-order distribution and a comparison with the impact factor rank-order distribution. JASIST 60(10): 2142-2144 (2009) |
| j89 | | Leo Egghe, Liming Liang, Ronald Rousseau: A relation between h-index and impact factor in the power-law model. JASIST 60(11): 2362-2365 (2009) |
| j88 | | Leo Egghe: Mathematical derivation of the impact factor distribution. J. Informetrics 3(4): 290-295 (2009) |
| j87 | | Leo Egghe: Time-dependent Lotkaian informetrics incorporating growth of sources and items. Mathematical and Computer Modelling 49(1-2): 31-37 (2009) |
| j86 | | Leo Egghe: The theorem of Fellman and Jakobsson: A new proof and dual theory. Mathematical and Computer Modelling 50(11-12): 1595-1605 (2009) |
| j85 | | |
| j84 | | Leo Egghe: Performance and its relation with productivity in Lotkaian systems. Scientometrics 81(2): 567-585 (2009) |
| i1 | | Leo Egghe, Loet Leydesdorff: The relation between Pearson's correlation coefficient r and Salton's cosine measure. CoRR abs/0911.1318 (2009) |
| 2008 | ||
| j83 | | Leo Egghe, Ronald Rousseau: An h-index weighted by citation impact. Inf. Process. Manage. 44(2): 770-780 (2008) |
| j82 | | Leo 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) |
| j81 | | Leo Egghe, I. K. Ravichandra Rao: Study of different h-indices for groups of authors. JASIST 59(8): 1276-1281 (2008) |
| j80 | | Leo Egghe: The influence of transformations on the h-index and the g-index. JASIST 59(8): 1304-1312 (2008) |
| j79 | | Leo Egghe, Liming Liang, Ronald Rousseau: Fundamental properties of rhythm sequences. JASIST 59(9): 1469-1478 (2008) |
| j78 | | Leo Egghe: Mathematical theory of the h- and g-index in case of fractional counting of authorship. JASIST 59(10): 1608-1616 (2008) |
| j77 | | Leo 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) |
| j76 | | Leo Egghe: A model for the size-frequency function of coauthor pairs. JASIST 59(13): 2133-2137 (2008) |
| j75 | | Leo Egghe: Examples of simple transformations of the h-index: Qualitative and quantitative conclusions and consequences for other indices. J. Informetrics 2(2): 136-148 (2008) |
| j74 | | |
| 2007 | ||
| j73 | | Leo Egghe: Existence theorem of the quadruple (P, R, F, M): Precision, recall, fallout and miss. Inf. Process. Manage. 43(1): 265-272 (2007) |
| j72 | | |
| j71 | | Leo Egghe: Untangling Herdan's law and Heaps' law: Mathematical and informetric arguments. JASIST 58(5): 702-709 (2007) |
| j70 | | Leo Egghe: Uncertainty and information: Foundations of generalized information theory. JASIST 58(5): 756-758 (2007) |
| j69 | | |
| j68 | | |
| j67 | | |
| j66 | | Leo Egghe: General evolutionary theory of information production processes and applications to the evolution of networks. J. Informetrics 1(2): 115-122 (2007) |
| j65 | | Leo Egghe, G. Proot: The estimation of the number of lost multi-copy documents: A new type of informetrics theory. J. Informetrics 1(4): 257-268 (2007) |
| j64 | | Leo Egghe: Item-time-dependent Lotkaian informetrics and applications to the calculation of the time-dependent h-index and g-index. Mathematical and Computer Modelling 45(7-8): 864-872 (2007) |
| j63 | | Leo Egghe: Probabilities for encountering genius, basic, ordinary or insignificant papers based on the cumulative nth citation distribution. Scientometrics 70(1): 167-181 (2007) |
| 2006 | ||
| j62 | | Leo 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) |
| j61 | | Leo Egghe: Expansion of the field of informetrics: The second special issue. Inf. Process. Manage. 42(6): 1405-1407 (2006) |
| j60 | | Leo Egghe, Ronald Rousseau: Systems without low-productive sources. Inf. Process. Manage. 42(6): 1428-1441 (2006) |
| j59 | | Leo Egghe: Properties of the n-overlap vector and n-overlap similarity theory. JASIST 57(9): 1165-1177 (2006) |
| j58 | | Leo Egghe, Thierry Lafouge: On the relation between the Maximum Entropy Principle and the Principle of Least Effort. Mathematical and Computer Modelling 43(1-2): 1-8 (2006) |
| j57 | | Leo Egghe: The dependence of the height of a Lorenz curve of a Zipf function on the size of the system. Mathematical and Computer Modelling 43(7-8): 870-879 (2006) |
| j56 | | Leo Egghe, Ronald Rousseau: Lorenz theory of symmetric relative concentration and similarity, incorporating variable array length. Mathematical and Computer Modelling 44(7-8): 628-639 (2006) |
| j55 | | Leo 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) |
| j54 | | Leo Egghe, Ronald Rousseau: An informetric model for the Hirsch-index. Scientometrics 69(1): 121-129 (2006) |
| j53 | | |
| 2005 | ||
| j52 | | Leo Egghe: Expansion of the field of informetrics: Origins and consequences. Inf. Process. Manage. 41(6): 1311-1316 (2005) |
| j51 | | Leo Egghe: Continuous, weighted Lorenz theory and applications to the study of fractional relative impact factors. Inf. Process. Manage. 41(6): 1330-1359 (2005) |
| j50 | | Leo Egghe: Relations between the continuous and the discrete Lotka power function. JASIST 56(7): 664-668 (2005) |
| j49 | | Leo Egghe: The power of power laws and an interpretation of Lotkaian informetric systems as self-similar fractals. JASIST 56(7): 669-675 (2005) |
| j48 | | |
| j47 | | Leo Egghe, Ronald Rousseau: Comparing partial and truncated conglomerates from a concentration theoretic point of view. Mathematical and Computer Modelling 41(2-3): 301-311 (2005) |
| j46 | | Leo Egghe: The exact rank-frequency function and size-frequency function of N-grams and N-word phrases with applications. Mathematical and Computer Modelling 41(6-7): 807-823 (2005) |
| j45 | | Leo Egghe: A characterization of the law of Lotka in terms of sampling. Scientometrics 62(3): 321-328 (2005) |
| j44 | | Leo Egghe: An explanation of disproportionate growth using linear 3-dimensional informetrics and its relation with the fractal dimension. Scientometrics 63(2): 277-296 (2005) |
| j43 | | Leo 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 | ||
| j42 | | Leo 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) |
| j41 | | Leo Egghe: Vector retrieval, fuzzy retrieval and the universal fuzzy IR surface for IR evaluation. Inf. Process. Manage. 40(4): 603-618 (2004) |
| j40 | | Leo Egghe, Ronald Rousseau: An approach to similarity measurement of absence-presence data: the case that common zeros matter. J. Information Science 30(6): 509-519 (2004) |
| j39 | | Leo Egghe: Solution of a problem of Buckland on the influence of obsolescence on scattering. Scientometrics 59(2): 225-232 (2004) |
| j38 | | Leo Egghe, Ronald Rousseau: How to measure own-group preference? A novel approach to a sociometric problem. Scientometrics 59(2): 233-252 (2004) |
| j37 | | Leo Egghe: Positive reinforcement and 3-dimensional informetrics. Scientometrics 60(3): 497-509 (2004) |
| j36 | | |
| 2003 | ||
| j35 | | Leo 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) |
| j34 | | Leo Egghe, Ronald Rousseau: a Measure for the Cohesion of Weighted Networks. JASIST 54(3): 193-202 (2003) |
| j33 | | |
| 2002 | ||
| j32 | | Leo Egghe, Christine Michel: Strong similarity measures for ordered sets of documents in information retrieval. Inf. Process. Manage. 38(6): 823-848 (2002) |
| j31 | | Leo Egghe: Sampling and concentration values of incomplete bibliographies. JASIST 53(4): 271-281 (2002) |
| j30 | | Leo Egghe: Book review: Mathematical foundations of information retrieval. JASIST 53(5): 409-410 (2002) |
| j29 | | 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) |
| 2001 | ||
| j28 | | Leo Egghe: A noninformetric analysis of the relationship between citation age and journal productivity. JASIST 52(5): 371-377 (2001) |
| 2000 | ||
| j27 | | 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) |
| j26 | | Leo Egghe, Ronald Rousseau: The influence of publication delays on the observed aging distribution of scientific literature. JASIS 51(2): 158-165 (2000) |
| j25 | | Leo Egghe, Ronald Rousseau: Aging, obsolescence, impact, growth, and utilization: Definitions and relations. JASIS 51(11): 1004-1017 (2000) |
| j24 | | Leo Egghe, Ronald Rousseau: Partial orders and measures for language preferences. JASIS 51(12): 1123-1130 (2000) |
| 1999 | ||
| j23 | | |
| 1998 | ||
| j22 | | 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) |
| j21 | | Leo Egghe, Ronald Rousseau: Topological Aspects of Information Retrieval. JASIS 49(13): 1134-1160 (1998) |
| 1997 | ||
| j20 | | Leo Egghe: Price Index and Its Relation to the Mean and Median Reference Age. JASIS 48(6): 564-573 (1997) |
| 1996 | ||
| j19 | | 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) |
| j18 | | 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 | ||
| j17 | | Leo Egghe, Ronald Rousseau: Sensitivity Aspects of Inequality Measures. Inf. Process. Manage. 31(4): 511-523 (1995) |
| j16 | | Leo Egghe, Ronald Rousseau: Generalized Success-Breeds-Success Principle Leading to Time-Dependent Informetric Distributions. JASIS 46(6): 426-445 (1995) |
| 1994 | ||
| j15 | | 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) |
| j14 | | 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 | ||
| j13 | | 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) |
| j12 | | 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 | ||
| j11 | | Leo Egghe: Duality Aspects of the Gini Index for General Information Production Processes. Inf. Process. Manage. 28(1): 35-44 (1992) |
| j10 | | 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 | ||
| j9 | | Leo Egghe: Theory of collaboration and collaborative measures. Inf. Process. Manage. 27(2-3): 177-202 (1991) |
| j8 | | Leo Egghe, Ronald Rousseau: Transfer principles and a classification of concentration measures. JASIS 42(7): 479-489 (1991) |
| j7 | | P. Bonckaert, Leo Egghe: Rational normalization of concentration measures. JASIS 42(10): 715-722 (1991) |
| 1990 | ||
| j6 | | |
| j5 | | 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) |
| c1 | | Leo Egghe: A New Method for Information Retrieval, Based on the Theory of Relative Concentration. SIGIR 1990: 469-493 |
| 1988 | ||
| j4 | | Leo Egghe: Concentration places, concentration evolutions, and online information retrieval techniques for calculating them. Inf. Process. Manage. 24(2): 109-121 (1988) |
| j3 | | Leo Egghe: Mathematical relations between impact factors and average number of citations. Inf. Process. Manage. 24(5): 567-576 (1988) |
| j2 | | Leo Egghe: The relative concentration of a journal with respect to a subject and the use of online services in calculating it. JASIS 39(4): 281-284 (1988) |
| 1987 | ||
| j1 | | Leo Egghe: Pratt's measure for some bibliometric distributions and its relation with the 80/20 rule. JASIS 38(4): 288-297 (1987) |
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