which metric is best for area under recall precision curve which math term best describes the area under the recall precision curve? can RankBoost be used as an au rpc what is au rpc used for how to maximize au rpc where is the au rpc metric used how to maximize au and rpc how to optimize au how to maximize au rpc what is au/au/au rpc how to maximize au auc instead of auc how does rank boost optimize auc? what is au-rpc when to use auc instead of auc in rank boost what is au-rpc used for what is the difference between au and rpc which auc is best for recall how to maximize rpc in rank boost what is the au-rpc can you optimize auc in rank boost