FIGURE 8.

Individual-specific model performance for the prediction of the time since deposition of saliva stains, using data of the short-term (up to 1 month) stored saliva stains based on four bacterial species from 15 individuals. Data from sample duplicates 2 were used for model testing, while data from sample duplicates 1 were used for model building. The mean absolute error (MAE) measures the discrepancies between the real and the predicted time since deposition values. The correlation between real and predicted values is indicated with r.