Figure 3.

Precision/Recall curves for genes selected by the gap method and k-means. Precision/recall curves in red are associated with the gap method, and the point marked with a circle denotes the precision/recall associated with patterns associated with 63 probe sets or less. Gray curves show precision/recall for all replicates of k-means clustering, and the average expected precision/recall curve is shown in black. Recall values are based on the 71 stem cell markers defined in Table 2, whereas precision is the fraction of marker genes identified in the total number of predicted marker genes.

Krzyzanowski and Andrade-Navarro Genome Biology 2007 8:R193   doi:10.1186/gb-2007-8-9-r193
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