The i10-index and h-index are metrics used to evaluate the impact and productivity of a researcher based on their publications.

1. i10-Index

• Definition: It is the number of a researcher’s publications that have been cited at least 10 times.

• Introduced by: Google Scholar.

• Example: If a researcher has 15 papers, and 10 of them have been cited at least 10 times, their i10-index is 10.

If x number of papers are having 10 citation minimum 

then the i10 index = x

2. h-Index

• Definition: It is the largest number hhh such that hhh of a researcher’s publications have been cited at least hhh times.

• Example:

  • If a researcher has 20 papers:

    • x number of papers have x+ citations each.

    • Their h-index = x.

Tools for Calculating:

• Google Scholar: Provides both i10-index and h-index.

• Scopus/Web of Science: Provides h-index (not i10-index).