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There are a few ways to measure an author's impact:
Document Counts, Citation Counts and h-index are available in Web of Science, Scopus and Google Scholar while i10-index is only available in Google Scholar.
h-index or Hirsch index was proposed in 2005 by Jorge E. Hirsch to quantify the research achievement of physicists based on their publication record. The number attempts to measure both the productivity and citation impact of the publications of a scientist or scholar.
The diagram shows a researcher with an index of h. Out of all his publications, h publications have at least h citations each. For example, an h-index of 20 means that, out of all papers published by an author, 20 of them have been cited at least 20 times.
Here are the steps to find document counts, citation counts and h-index of an author in Scopus.
► Step 1. Go to Scopus.
► Step 2. Conduct an Author Search.
You can search for an author with his/her ORCID, or via the author's name and affiliation, both under the Authors tab:
► Step 3. You can then find the document counts and h-index from the search result page.
► Step 4. After selecting the author profile, you can check the total citation count of the author.
You can also click View h-graph to visualize the metrics in other formats, and click View all metrics to find other available metrics.
Here are the steps to find document counts, citation counts and h-index of an author by creating a citation report in Web of Science.
► Step 1. Go to Web of Science.
► Step 2. Conduct an Author Search.
You can search for an author with his/her identifiers like ORCID under RESEARCHERS tab:
Alternatively, you can search for an author with name:
► Step 3. Click on View citation report.
► Step 4: View the author's document counts, citation counts, and h-index from the Citation Report.
To locate an author's metrics in Google Scholar, simply search the author's name using Google Scholar. The metrics will only be available for authors who have set up their Google Scholar profile with publications (in public view).
i10-index is the number of publications with at least 10 citations. It can be calculated against all publications for an author, or a 'recent' version (e.g. "Since 2012"), which is the number of publications that have received at least 10 new citations in the past 5 year.
Please note the followings when using h-index: