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Detecting h-index manipulation through self-citation analysis
Scientometrics
|April 8, 2011
Summary
Researchers can inflate their h-index using self-citations. A new q-index is proposed to detect manipulation, highlighting that high citation by others and productivity are key for a genuine high h-index.
Area of Science:
- Bibliometrics
- Scientometrics
- Research Evaluation
Background:
- The h-index is a widely used metric for assessing researcher and organizational impact.
- Concerns exist regarding the potential for manipulation of the h-index through self-citation practices.
Purpose of the Study:
- To investigate the extent to which authors can inflate their h-index via strategic self-citations.
- To introduce a new metric, the q-index, for detecting h-index manipulation.
Main Methods:
- Simulation using an extended Burrell's publication model.
- Implementation of three self-citation strategies: random, recent, and h-manipulating.
Main Results:
- Authors can significantly inflate their h-index through self-citations.
- The q-index effectively identifies strategic self-citation patterns.
- High citation rates from other researchers and overall productivity positively impact the h-index.
Conclusions:
- Self-citation strategies can artificially elevate the h-index.
- The q-index offers a valuable tool for identifying potential h-index manipulation.
- Genuine research impact, evidenced by external citations and productivity, remains the most effective way to achieve a high h-index.
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