Fig. 2
From: Searching for universal model of amyloid signaling motifs using probabilistic context-free grammars
Number of variables effects on performance and grammar size. Mean number of lexical and structural rules with non-zero probability (a) and mean average precision (b) in the cross-validation experiment are shown with regard to the maximum number of variables (l: lexical, s: structural). Data for learning without (with) contact constraints are plotted in shades of blue (magenta)