The h-index is an author metric developed by Jorge Hirsch and is used to measure the productivity and impact of a specific scholar. It is based on the author's most cited papers and the number of citations they have received in other publications.
Wikipedia explains the calculation of the h-index in this manner:
Formally, if f is the function that corresponds to the number of citations for each publication, we compute the h index as follows. First we order the values of f from the largest to the lowest value. Then, we look for the last position in which f is greater than or equal to the position (we call h this position). For example, if we have a researcher with 5 publications A, B, C, D, and E with 10, 8, 5, 4, and 3 citations, respectively, the h index is equal to 4 because the 4th publication has 4 citations and the 5th has only 3. In contrast, if the same publications have 25, 8, 5, 3, and 3, then the index is 3 because the fourth paper has only 3 citations.
If we have the function f ordered in decreasing order from the largest value to the lowest one, we can compute the h index as follows:
To find the h-index in Scopus:
To find your h-index in Google Scholar, you will need to create a profile, using your gmail account, in Google Scholar. To do that: