| import OAI.Combinatorics.EditApproximation.Specification.RawBandConsumers |
| import OAI.Combinatorics.EditApproximation.Definitions |
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| namespace OAI.EditApproximation.BinaryFraction |
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| def dyadicSampledGroupActionReadWithWorkRaw {ny M : ℕ} |
| (b exponent Q : ℕ) (F : BinaryFraction) |
| (initial current : Fin M → TargetInterval ny → BinaryFraction × ℕ) |
| (raw : List BinaryFraction) (hraw : raw.map value = groupDyadicScales M b F.value) |
| (draw : ∀ t : Fin (groupDyadicScales M b F.value).length, |
| Fin (groupSampleCount M Q b (groupDyadicScaleAt M b F.value t)) → Fin M) |
| (members : List (RawUnskippedBand M ny)) (hne : members ≠ []) := |
| sampledGroupActionReadWithWorkRaw b exponent Q initial current |
| (indexedGroupScales raw M b F.value hraw) |
| (fun t j => draw t (Fin.cast (congrArg (groupSampleCount M Q b) |
| (indexedGroupScales_value raw M b F.value hraw t)) j)) members hne |
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| def preparedCellGroupReadWithWorkRaw {α : Type*} (source target : List α) {M : ℕ} |
| (parent : TargetInterval source.length) (b P F exponent Q : ℕ) (_hb : 0 < b) (_hP : 0 < P) |
| (tau a : BinaryFraction) |
| (parentInitial : TargetInterval target.length → BinaryFraction × ℕ) |
| (child initial current : Fin M → TargetInterval target.length → BinaryFraction × ℕ) |
| (R C : ℕ) (_hr : ∀ i q, (child i q).2 ≤ R) (_hi : ∀ i q, (initial i q).2 ≤ C) |
| (raw : List BinaryFraction) (hraw : raw.map value = groupDyadicScales M b (nat F).value) |
| (draw : ∀ t : Fin (groupDyadicScales M b (nat F).value).length, |
| Fin (groupSampleCount M Q b (groupDyadicScaleAt M b (nat F).value t)) → Fin M) |
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| (cell : ℕ × ℕ) : |
| Option (BinaryBellmanAction (TargetInterval target.length) |
| (Fin M × TargetInterval target.length) M) × ℕ := |
| let centers := cellCentersReadWithWork P F b a (inversePowerTwo exponent) parentInitial cell |
| let members := filterMapWithWork |
| (preparedUnskippedReadWithWorkRaw parent b P exponent tau (nat F) child initial) centers.1 |
| if h : members.1 = [] then (none, centers.2 + members.2 + 1) else |
| let selected := dyadicSampledGroupActionReadWithWorkRaw b exponent Q (nat F) initial current raw hraw draw members.1 h |
| (some selected.1, centers.2 + members.2 + selected.2 + 2) |
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| end OAI.EditApproximation.BinaryFraction |
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