[ O: \mathcalT \to [0,1] \subset \mathbbR ]

with a threshold ( \theta \in [0,1] ), where ( O(\tau) \ge \theta ) indicates a .

Vub Oracle -

[ O: \mathcalT \to [0,1] \subset \mathbbR ]

with a threshold ( \theta \in [0,1] ), where ( O(\tau) \ge \theta ) indicates a .