منابع مشابه
Mathematical study of h-index sequences
This paper studies mathematical properties of h-index sequences as developed by Liang [Liang, L. (2006). h-Index sequence and h-index matrix: Constructions and applications. Scientometrics, 69(1), 153–159]. For practical reasons, Liming studies such sequences where the time goes backwards while it is more logical to use the time going forward (real career periods). Both type of h-index sequence...
متن کاملH-index Sequences across Fields: A Comparative Analysis
This study presents the first analysis of h-index sequences on a larger scale. Exemplarily, we investigated researchers from three different fields within Computer Science. We use Google Scholar citation profiles as data source to construct the h-index sequences of individual researchers. Our ultimate goal is to develop a self-evaluation tool, to assess one’s own development of the h-index in c...
متن کاملMathematical results on the H-index and H-sequence of Randić
We present mathematical formulae for the H-sequence and H-index of Randić in a Lotkaian framework. We also present a variant of the H-index of Randić. We prove that the following assertions are equivalent, given two persons with the same hindex of Hirsch: the Randić H-index 1 H of the first person is larger than 2 H , the one of the second person, if and only if the H-sequence of the first pers...
متن کاملIndex of Sequences
Let Zn denote the cyclic group of n elements. For every x ∈ Zn, we denote by |x|n the smallest positive integer in the residual class x. Let S = (a1, . . . , ak) be a sequence of elements in Zn. We say that S has index n if there is an integer m co-prime to n such that Pk i=1 |mai|n = n. In this paper, we prove that a sequence of n elements in Zn with repetition at least n 2 contains a subseque...
متن کاملMathematical Constants and Sequences
Basic math constants Derived from the basic ones ... from 0 and 1 ... from i ... from 1 and i ... from π ... from e ... from e and π ... from γ ... from Φ Named real math constants Other notable real constants Notable integer numbers Named/notable functions on N Named/notable integer sequences Related to Factorials Related to Hamming weight Related to Powers Related to Divisors Related to Aliqu...
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ژورنال
عنوان ژورنال: Information Processing & Management
سال: 2009
ISSN: 0306-4573
DOI: 10.1016/j.ipm.2008.12.002