| import OAI.Probability.MatroidProphet.Main | |
| namespace OAI | |
| /-! Concrete sacrificed-mask data for the secretary transport. | |
| The branch and every mask coordinate are functions of the complete source seed. | |
| The test mask is deliberately not part of the sacrificed mask. | |
| -/ | |
| namespace MatroidProphet.Secretary | |
| /-- The observation mask of the concrete source rule, before any values are seen. -/ | |
| noncomputable def sourceMask {n : ℕ} (r : Seed (mainSeedBits n)) : Finset (Fin n) := | |
| if mainBranch r then | |
| (mainMasks r).H ∪ (mainMasks r).D ∪ (mainMasks r).C | |
| else (mainMasks r).H | |
| /-- Literal branchwise Bernoulli rates from `sections/secretary.tex`. | |
| `false` is the maximum branch and `true` is the main branch. -/ | |
| noncomputable def branchRate (j : Bool) : ℝ := | |
| if j then 5 / 8 + 3 * ((2 : ℝ) ^ 143)⁻¹ else 1 / 2 | |
| end MatroidProphet.Secretary | |
| end OAI | |