Three Aspects of the Research Impact by a Scientist: Measurement Methods and an Empirical Evaluation
Three different approaches for evaluation of the research impact by a scientist are considered. Two of them are conventional ones, scoring the impact over (a) citation metrics and (b) merit metrics. The third one relates to the level of results. It involves a taxonomy of the research field, that is, a hierarchy representing its composition. The impact is evaluated according to the taxonomy ranks of the subjects that have emerged or have been crucially transformed due to the results by the scientist under consideration Mirkin (Control Large Syst Spec Issue 44:292–307, 2013). To aggregate criteria in approaches (a) and (b) we use an in-house automated criteria weighting method oriented towards as tight a representation of the strata as possible Orlov (Bus Inf, 2014). To compare the approaches empirically, we use publicly available data of about 30 scientists in the areas of data analysis and machine learning. As our taxonomy of the field, we invoke a corresponding part of the ACM Computing Classification System 2012 and slightly modify it to better reflect results by the scientists in our sample. The obtained ABC stratifications are rather far each other. This supports the view that all the three approaches (citations, merits, taxonomic rank) should be considered as different aspects, and, therefore, a good method for scoring research impact should involve all the three.