The h-index qualifies the impact and quantity of an individual’s research performance.
Features of an h-index
It is a measure of the number of high impact papers a researcher has published.
The larger the number of highly cited papers, the higher the h-index, regardless of where the work was published.
It can be summed up as 'h publications with h citations each'.
For example, to have an h-index of 10, you must have at least 10 publications with at least 10 citations each.
There are three main tools to generate an h-index, including:
You can create a profile with each of these tools to save you time when locating your citation counts.
N.B. to generate your h-index with Google Scholar, you must have a Google Scholar profile.
||Image source: Wikimedia Commons http://en.wikipedia.org/wiki/File:H-index-en.svg
Issues to be aware of
- In general, values can only be compared within a single discipline. Different citation patterns across disciplines make comparisons difficult. For example, An average medical researcher will generally have much larger h-index values than a world-class mathematician.
- Even within a discipline, comparing h-index values is only useful if all information has been found using
- the same database
- the same method
It is therefore useful to identify your h-index by its source, e.g. a 'Scopus h-index'
- The h-index may be less useful in some disciplines, particularly the humanities and social sciences. This is because
- publishing and citation patterns in these disciplines may mean that there are not enough citations available to generate a useful measure
- the publications and citations are not indexed in databases