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##Normalized paper count

For a list of N papers (i=1,...N), where Nauthi is the number of authors for publication i, the normalized paper count is the sum over 1/Nauthi

##Normalized citations

For a list of N papers (i=1,...N), where Nauthi is the number of authors for publication i and Ci the number of citations that this paper received, the normalized citation count for each article is Ci/Nauthi, and the 'normalized citations' for this list of N papers is the sum of these N numbers.

##h-index

Hirsch's h-index is the largest number H such that H publications have at least H citations. It attempts to measure the productivity and impact of a researcher in a single number. Wikipedia entry

##m-index The m-index is the h-index divided by the time (years) between the first and most recent publication.

##iN-index (where N is 10 or 100)

The iN-index is the number of publications with at least N citations.

##g-index

Given a set of articles ranked in decreasing order of the number of citations that they received, the g-index is the (unique) largest number such that the top g articles received (together) at least g2 citations.

##tori-index

The total research impact of a scholar (tori) is calculated using the reference lists of the citing papers, where self-citations are removed. The contribution of each citing paper is then normalized by the number of remaining references in the citing papers and the number of authors in the cited paper. The tori-index is defined as the amount of work that others have devoted to his/her research, measured in research papers. (See arXiv:1209.2124)

##riq-index

The research impact quotient (riq) equals the square root of the tori-index, divided by the time between the first and last publication, multiplied by 1000 (See arXiv:1209.2124)

##read10-index

Read10 is the current readership rate for all an individual's papers published in the most recent ten years, normalized for number of authors (See: Kurtz et al. (2005), The Journal of the American Society for Information Science and Technology, Vol. 56, p. 111)