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2020 – today
- 2022
[j190]Leo Egghe:
Impact measures: What are they? Scientometrics 127(1): 385-406 (2022)- 2021
- [j189]Leo Egghe:
A theory of pointwise defined impact measures. J. Informetrics 15(3): 101169 (2021) - [j188]Leo Egghe, Ronald Rousseau
:
The h-index formalism. Scientometrics 126(7): 6137-6145 (2021) - 2020
- [j187]Leo Egghe, Ronald Rousseau:
Polar coordinates and generalized h-type indices. J. Informetrics 14(2): 101024 (2020) - [j186]Leo Egghe, Ronald Rousseau:
h-Type indices, partial sums and the majorization order. Quant. Sci. Stud. 1(1): 320-330 (2020)
2010 – 2019
- 2019
- [j185]Leo Egghe, Yves Fassin, Ronald Rousseau:
Equalities between h-type Indices and Definitions of Rational h-type Indicators. J. Data Inf. Sci. 4(1): 22-31 (2019) - [j184]Leo Egghe, Ronald Rousseau:
Infinite sequences and their h-type indices. J. Informetrics 13(1): 291-298 (2019) - [j183]Leo Egghe, Ronald Rousseau:
Solution by step functions of a minimum problem in L2[0, T], using generalized h- and g-indices. J. Informetrics 13(3): 785-792 (2019) - [j182]Leo Egghe, Ronald Rousseau:
A geometric relation between the h-index and the Lorenz curve. Scientometrics 119(2): 1281-1284 (2019) - [j181]Leo Egghe, Ronald Rousseau:
Measures of linear type lead to a characterization of Zipf functions. Scientometrics 121(3): 1707-1715 (2019) - 2017
- [j180]Yuxian Liu, Ronald Rousseau, Leo Egghe:
Partial orders for zero-sum arrays with applications to network theory. J. Informetrics 11(1): 257-274 (2017) - 2015
- [j179]Leo Egghe:
Message from the retiring Editor-in-Chief. J. Informetrics 9(1): A1-A2 (2015) - 2014
- [j178]Leo Egghe:
Informetric explanation of some Leiden Ranking graphs. J. Assoc. Inf. Sci. Technol. 65(4): 737-741 (2014) - [j177]Leo Egghe:
A good normalized impact and concentration measure. J. Assoc. Inf. Sci. Technol. 65(10): 2152-2154 (2014) - [j176]Leo Egghe:
Impact coverage of the success-index. J. Informetrics 8(2): 384-389 (2014) - [j175]Leo Egghe:
Comments on "year-based h-type indicators". Scientometrics 98(3): 2369-2370 (2014) - [j174]Leo Egghe:
Comments on the paper of J. M. Campanario: The effect of citations on the significance of decimal places in the computation of journal impact factors. Scientometrics 101(3): 2071-2075 (2014) - 2013
- [j173]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. Manag. 49(1): 99-107 (2013) - [j172]Leo Egghe:
Comparative study of four impact measures and qualitative conclusions. Inf. Process. Manag. 49(4): 865-870 (2013) - [j171]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. Manag. 49(4): 981 (2013) - [j170]Leo Egghe:
Theory of the topical coverage of multiple databases. J. Assoc. Inf. Sci. Technol. 64(1): 126-131 (2013) - [j169]Leo Egghe:
Note on a possible decomposition of the h-Index. J. Assoc. Inf. Sci. Technol. 64(4): 871 (2013) - [j168]Leo Egghe, Lutz Bornmann:
Fallout and miss in journal peer review. J. Documentation 69(3): 411-416 (2013) - [j167]Leo Egghe:
The functional relation between the impact factor and the uncitedness factor revisited. J. Informetrics 7(1): 183-189 (2013) - [j166]Leo Egghe:
A mathematical characterization of the Hirsch-index by means of minimal increments. J. Informetrics 7(2): 388-393 (2013) - [j165]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) - [j164]Leo Egghe:
Theoretical justification of the central area indices and the central interval indices. Scientometrics 95(1): 25-34 (2013) - [j163]Leo Egghe, Raf Guns, Ronald Rousseau:
Measuring co-authors' contribution to an article's visibility. Scientometrics 95(1): 55-67 (2013) - [j162]Leo Egghe:
On the correction of the h-index for career length. Scientometrics 96(2): 563-571 (2013) - 2012
- [j161]Leo Egghe, Raf Guns, Ronald Rousseau:
Erratum. J. Assoc. Inf. Sci. Technol. 63(2): 429 (2012) - [j160]Leo Egghe, Ronald Rousseau:
The Hirsch index of a shifted Lotka function and its relation with the impact factor. J. Assoc. Inf. Sci. Technol. 63(5): 1048-1053 (2012) - [j159]Leo Egghe, Raf Guns:
Applications of the generalized law of Benford to informetric data. J. Assoc. Inf. Sci. Technol. 63(8): 1662-1665 (2012) - [j158]Leo Egghe:
Remarks on the paper by A. De Visscher, "what does the g-index really measure?". J. Assoc. Inf. Sci. Technol. 63(10): 2118-2121 (2012) - [j157]Lutz Bornmann, Leo Egghe:
Journal peer review as an information retrieval process. J. Documentation 68(4): 527-535 (2012) - [j156]Leo Egghe:
Averages of ratios compared to ratios of averages: Mathematical results. J. Informetrics 6(2): 307-317 (2012) - [j155]Leo Egghe:
Five years "Journal of Informetrics". J. Informetrics 6(3): 422-426 (2012) - [j154]Leo Egghe:
Study of rank- and size-frequency functions and their relations in a generalized Naranan framework. Math. Comput. Model. 55(7-8): 1898-1903 (2012) - [j153]Leo Egghe, Ronald Rousseau:
Theory and practice of the shifted Lotka function. Scientometrics 91(1): 295-301 (2012) - 2011
- [j152]Leo Egghe, Ludo Waltman:
Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution. Inf. Process. Manag. 47(2): 238-245 (2011) - [j151]Leo Egghe, Raf Guns, Ronald Rousseau:
Thoughts on uncitedness: Nobel laureates and Fields medalists as case studies. J. Assoc. Inf. Sci. Technol. 62(8): 1637-1644 (2011) - [j150]Leo Egghe, Lutz Bornmann, Raf Guns:
A proposal for a First-Citation-Speed-Index. J. Informetrics 5(1): 181-186 (2011) - [j149]Leo Egghe:
Characterizations of the generalized Wu- and Kosmulski-indices in Lotkaian systems. J. Informetrics 5(3): 439-445 (2011) - [j148]Leo Egghe:
Mathematical relations of the h-index with other impact measures in a Lotkaian framework. Math. Comput. Model. 53(5-6): 610-616 (2011) - [j147]Leo Egghe:
Mathematical derivation of the scale-dependence of the h-index and other h-type indices. Scientometrics 87(2): 287-292 (2011) - [j146]Leo Egghe:
The impact factor rank-order distribution revisited. Scientometrics 87(3): 683-685 (2011) - [j145]Leo Egghe:
The influence of random removal of sources and items on the h-index. Scientometrics 88(2): 363-370 (2011) - [j144]Leo Egghe:
Problems with "natural selection of academic papers". Scientometrics 88(2): 663-667 (2011) - [j143]Leo Egghe:
The single publication H-index and the indirect H-index of a researcher. Scientometrics 88(3): 1003-1004 (2011) - [j142]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
- [j141]Leo Egghe:
The Hirsch index and related impact measures. Annu. Rev. Inf. Sci. Technol. 44(1): 65-114 (2010) - [j140]Leo Egghe:
Influence of adding or deleting items and sources on the h-index. J. Assoc. Inf. Sci. Technol. 61(2): 370-373 (2010) - [j139]Leo Egghe:
On the relation between the association strength and other similarity measures. J. Assoc. Inf. Sci. Technol. 61(7): 1502-1504 (2010) - [j138]Leo Egghe:
Good properties of similarity measures and their complementarity. J. Assoc. Inf. Sci. Technol. 61(10): 2151-2160 (2010) - [j137]Leo Egghe:
A new short proof of Naranan's theorem, explaining Lotka's law and Zipf's law. J. Assoc. Inf. Sci. Technol. 61(12): 2581-2583 (2010) - [j136]Leo Egghe:
Characteristic scores and scales based on h-type indices. J. Informetrics 4(1): 14-22 (2010) - [j135]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) - [j134]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) - [j133]Leo Egghe:
Characteristic scores and scales in a Lotkaian framework. Scientometrics 83(2): 455-462 (2010) - [j132]Leo Egghe:
The distribution of the uncitedness factor and its functional relation with the impact factor. Scientometrics 83(3): 689-695 (2010) - [j131]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) - [j130]Leo Egghe:
Letter to the editor: On Randic's H-sequence. Scientometrics 84(3): 795-797 (2010)
2000 – 2009
- 2009
- [j129]Leo Egghe:
Mathematical study of h-index sequences. Inf. Process. Manag. 45(2): 288-297 (2009) - [j128]Leo Egghe:
An econometric property of the g-index. Inf. Process. Manag. 45(4): 484-489 (2009) - [j127]Leo Egghe:
New relations between similarity measures for vectors based on vector norms. J. Assoc. Inf. Sci. Technol. 60(2): 232-239 (2009) - [j126]Leo Egghe, Loet Leydesdorff:
The relation between Pearson's correlation coefficient r and Salton's cosine measure. J. Assoc. Inf. Sci. Technol. 60(5): 1027-1036 (2009) - [j125]Leo Egghe:
A rationale for the Hirsch-index rank-order distribution and a comparison with the impact factor rank-order distribution. J. Assoc. Inf. Sci. Technol. 60(10): 2142-2144 (2009) - [j124]Leo Egghe, Liming Liang, Ronald Rousseau:
A relation between h-index and impact factor in the power-law model. J. Assoc. Inf. Sci. Technol. 60(11): 2362-2365 (2009) - [j123]Leo Egghe:
Mathematical derivation of the impact factor distribution. J. Informetrics 3(4): 290-295 (2009) - [j122]Leo Egghe:
Time-dependent Lotkaian informetrics incorporating growth of sources and items. Math. Comput. Model. 49(1-2): 31-37 (2009) - [j121]Leo Egghe:
The theorem of Fellman and Jakobsson: A new proof and dual theory. Math. Comput. Model. 50(11-12): 1595-1605 (2009) - [j120]Leo Egghe:
Comparative study of h-index sequences. Scientometrics 81(2): 311-320 (2009) - [j119]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
- [j118]Leo Egghe, Ronald Rousseau:
An h-index weighted by citation impact. Inf. Process. Manag. 44(2): 770-780 (2008) - [j117]Leo Egghe:
The measures precision, recall, fallout and miss as a function of the number of retrieved documents and their mutual interrelations. Inf. Process. Manag. 44(2): 856-876 (2008) - [j116]Leo Egghe, I. K. Ravichandra Rao:
Study of different h-indices for groups of authors. J. Assoc. Inf. Sci. Technol. 59(8): 1276-1281 (2008) - [j115]Leo Egghe:
The influence of transformations on the h-index and the g-index. J. Assoc. Inf. Sci. Technol. 59(8): 1304-1312 (2008) - [j114]Leo Egghe, Liming Liang, Ronald Rousseau:
Fundamental properties of rhythm sequences. J. Assoc. Inf. Sci. Technol. 59(9): 1469-1478 (2008) - [j113]Leo Egghe:
Mathematical theory of the h- and g-index in case of fractional counting of authorship. J. Assoc. Inf. Sci. Technol. 59(10): 1608-1616 (2008) - [j112]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. J. Assoc. Inf. Sci. Technol. 59(10): 1688-1693 (2008) - [j111]Leo Egghe:
A model for the size-frequency function of coauthor pairs. J. Assoc. Inf. Sci. Technol. 59(13): 2133-2137 (2008) - [j110]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) - [j109]Leo Egghe:
The influence of merging on h-type indices. J. Informetrics 2(3): 252-262 (2008) - [j108]Leo Egghe:
The mathematical relation between the impact factor and the uncitedness factor. Scientometrics 76(1): 117-123 (2008) - [j107]Leo Egghe:
Modelling successive h-indices. Scientometrics 77(3): 377-387 (2008) - 2007
- [j106]Leo Egghe:
Existence theorem of the quadruple (P, R, F, M): Precision, recall, fallout and miss. Inf. Process. Manag. 43(1): 265-272 (2007) - [j105]Leo Egghe:
Dynamic h-index: The Hirsch index in function of time. J. Assoc. Inf. Sci. Technol. 58(3): 452-454 (2007) - [j104]Leo Egghe:
Untangling Herdan's law and Heaps' law: Mathematical and informetric arguments. J. Assoc. Inf. Sci. Technol. 58(5): 702-709 (2007) - [j103]Leo Egghe:
Uncertainty and information: Foundations of generalized information theory. J. Assoc. Inf. Sci. Technol. 58(5): 756-758 (2007) - [j102]Leo Egghe, Ronald Rousseau, Sandra Rousseau:
TOP-curves. J. Assoc. Inf. Sci. Technol. 58(6): 777-785 (2007) - [j101]Leo Egghe, Marc Goovaerts:
A note on measuring overlap. J. Inf. Sci. 33(2): 189-195 (2007) - [j100]Leo Egghe:
Welcome to the Journal of Informetrics. J. Informetrics 1(1): 1 (2007) - [j99]Leo Egghe:
General evolutionary theory of information production processes and applications to the evolution of networks. J. Informetrics 1(2): 115-122 (2007) - [j98]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) - [j97]Leo Egghe:
Item-time-dependent Lotkaian informetrics and applications to the calculation of the time-dependent h-index and g-index. Math. Comput. Model. 45(7-8): 864-872 (2007) - [j96]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
- [j95]Leo Egghe, Ronald Rousseau:
Classical retrieval and overlap measures satisfy the requirements for rankings based on a Lorenz curve. Inf. Process. Manag. 42(1): 106-120 (2006) - [j94]Leo Egghe:
Expansion of the field of informetrics: The second special issue. Inf. Process. Manag. 42(6): 1405-1407 (2006) - [j93]Leo Egghe, Ronald Rousseau:
Systems without low-productive sources. Inf. Process. Manag. 42(6): 1428-1441 (2006) - [j92]Leo Egghe:
Properties of the n-overlap vector and n-overlap similarity theory. J. Assoc. Inf. Sci. Technol. 57(9): 1165-1177 (2006) - [j91]Leo Egghe, Thierry Lafouge:
On the relation between the Maximum Entropy Principle and the Principle of Least Effort. Math. Comput. Model. 43(1-2): 1-8 (2006) - [j90]Leo Egghe:
The dependence of the height of a Lorenz curve of a Zipf function on the size of the system. Math. Comput. Model. 43(7-8): 870-879 (2006) - [j89]Leo Egghe, Ronald Rousseau:
Lorenz theory of symmetric relative concentration and similarity, incorporating variable array length. Math. Comput. Model. 44(7-8): 628-639 (2006) - [j88]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) - [j87]Leo Egghe, Ronald Rousseau:
An informetric model for the Hirsch-index. Scientometrics 69(1): 121-129 (2006) - [j86]Leo Egghe:
Theory and practise of the g-index. Scientometrics 69(1): 131-152 (2006) - 2005
- [j85]Leo Egghe:
Expansion of the field of informetrics: Origins and consequences. Inf. Process. Manag. 41(6): 1311-1316 (2005) - [j84]Leo Egghe:
Continuous, weighted Lorenz theory and applications to the study of fractional relative impact factors. Inf. Process. Manag. 41(6): 1330-1359 (2005) - [j83]Leo Egghe:
Relations between the continuous and the discrete Lotka power function. J. Assoc. Inf. Sci. Technol. 56(7): 664-668 (2005) - [j82]Leo Egghe:
The power of power laws and an interpretation of Lotkaian informetric systems as self-similar fractals. J. Assoc. Inf. Sci. Technol. 56(7): 669-675 (2005) - [j81]Leo Egghe:
Zipfian and Lotkaian continuous concentration theory. J. Assoc. Inf. Sci. Technol. 56(9): 935-945 (2005) - [j80]Leo Egghe, Ronald Rousseau:
Comparing partial and truncated conglomerates from a concentration theoretic point of view. Math. Comput. Model. 41(2-3): 301-311 (2005) - [j79]Leo Egghe:
The exact rank-frequency function and size-frequency function of N-grams and N-word phrases with applications. Math. Comput. Model. 41(6-7): 807-823 (2005) - [j78]Leo Egghe:
A characterization of the law of Lotka in terms of sampling. Scientometrics 62(3): 321-328 (2005) - [j77]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) - [j76]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
- [j75]Leo Egghe:
A universal method of information retrieval evaluation: the "missing" link M and the universal IR surface. Inf. Process. Manag. 40(1): 21-30 (2004) - [j74]Leo Egghe:
Vector retrieval, fuzzy retrieval and the universal fuzzy IR surface for IR evaluation. Inf. Process. Manag. 40(4): 603-618 (2004) - [j73]Leo Egghe, Ronald Rousseau:
An approach to similarity measurement of absence-presence data: the case that common zeros matter. J. Inf. Sci. 30(6): 509-519 (2004) - [j72]Leo Egghe:
Solution of a problem of Buckland on the influence of obsolescence on scattering. Scientometrics 59(2): 225-232 (2004) - [j71]Leo Egghe, Ronald Rousseau:
How to measure own-group preference? A novel approach to a sociometric problem. Scientometrics 59(2): 233-252 (2004) - [j70]Leo Egghe:
Positive reinforcement and 3-dimensional informetrics. Scientometrics 60(3): 497-509 (2004) - [j69]Leo Egghe:
The source-item coverage of the Lotka function. Scientometrics 61(1): 103-115 (2004) - 2003
- [j68]