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Table 4 Number of publications for different evaluation processes

From: Diagnosis support systems for rare diseases: a scoping review

EvaluationData drivenKnowledge-basedHybrid
Comparison to other methods15 studies9 studies4 studies
Comparison to other tools1 study8 studies3 studies
Comparison to experts3 studies1 study1 study
External validation8 studies8 studies2 studies
Method for imbalance issue2 studies0 studies0 studies
Total29 studies19 studies13 studies
  1. The number of studies is specified for each evaluation process according to the type of knowledge included. External validation is only specified in 18 studies, and a specific method to address imbalance issues is only specified in two studies