Figure 1.

Comparison of the accuracy of KNN, sequential KNN, EM style sequential KNN, and MI methods for three different types of data sets. The accuracies were assessed by Root Mean Squared (RMS) error. Tested data sets were time series data set [22] (a), mixed (time series and non-time series) data set [23] (b), and non-time series data set [9] (c).