Chunk #91 — Online Methods — ROC curves.
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where S˜ is the set of significant units at threshold t,T˜ the set of true (non-null) units, and N˜ the set of null units: S˜:={j : pj≤t} N˜:={j : bjr=0, ∀r} T˜:={j : ∃ r s.t. bjr≠0}.
where S˜ is the set of significant units at threshold t,T˜ the set of true (non-null) units, and N˜ the set of null units: S˜:={j : pj≤t} N˜:={j : bjr=0, ∀r} T˜:={j : ∃ r s.t. bjr≠0}.