What is bibliometrics?
Measures of a scientific writer's influence are called bibliometrics. Techniques for discerning this influence, or impact, range from simple counts of publications to sophisticated mathematical equations. Two of the most well-known bibliometrics are the impact factor, typically applied to journals, and the h-index, typically applied to authors.
What is h-index?
The H index is an index to quantify an individuals scientific research output. J.E.Hirsch.
The h-index is an author level metric that attempts to measure both the productivity and citation impact of the publications of a scholar.
The h-index is based on a scholar's most cited papers and the number of citations that they have received in other publications.
The h- index serve as an alternative to traditional journal impact factor metrics in the evaluation of the impact of the work of a particular researcher. Only the most highly cited articles contribute to the h-index.
Advantages of h-index:
Allows for direct comparisons within a discipline.
Measures quantity and impact by a single value.
Measure simultaneously the quality and quantity of scientific output.
Disadvantages of h-index:
Does not compare across disciplines.
Does not consider context.
The h-index does not account for the typical number of citations in different fields.