New metrics developed to normalize academic citation impact
Researchers have developed new methods to analyze and compare academic research impact by accounting for the age of publications. By analyzing approximately 1.5 million publications from faculty at top US universities, a study established citation benchmarks across different time milestones.
Findings indicate that a median paper receives roughly 20 citations five years after publication, 50 citations within ten years, and approximately 100 citations over its lifetime. Papers in the 75th percentile reach about 50 citations at five years and 200 citations over their lifetime.
To improve the estimation of a paper's future potential, a new metric called the PiP-AUC score has been introduced. This method utilizes the percentile of citations relative to the year of publication, a value that tends to stabilize within three years of a paper's release. Additionally, researchers developed a way to normalize productivity by calculating percentiles for the number of papers published, allowing for a more accurate comparison of academic performance across different career stages.