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ARCHITECTURE.md

@@ -279,12 +279,17 @@ Where:
 Before feeding raw signals into estimators, the pipeline executes deterministic preprocessing:
 1. **Target Leakage Prevention**: Strips redundant diagnostic alarm flags (`Heart Rate Alert`, `SpO2 Alert`, `Blood Pressure Alert`).
 2. **Encoding Normalization**: Replaces corrupt degree characters (`\ufffd` or ISO artifacts) with UTF-8 `°C`.
-3. **Synthetic Clinical Interaction Feature (Risk Severity)**:
-   $$\text{Risk\textunderscore Severity} = \mathbb{I}(\text{Heart\textunderscore Rate} > 105) + \mathbb{I}(\text{SpO2\textunderscore Level} < 94)$$
-   Where $\mathbb{I}(\cdot)$ is the indicator function:
-   $$\mathbb{I}(P) = \begin{cases} 1 & \text{if } P \text{ is true} \\ 0 & \text{if } P \text{ is false} \end{cases}$$
+3. **Synthetic Clinical Interaction Feature (`Risk_Severity`)**:
+
+$$\text{Risk\_Severity} = \mathbb{I}(\text{Heart\_Rate} > 105) + \mathbb{I}(\text{SpO2\_Level} < 94)$$
+
+Where $\mathbb{I}(\cdot)$ is the binary indicator evaluation function:
+
+$$\mathbb{I}(P) = \begin{cases} 1, & \text{if } P \text{ is true} \\ 0, & \text{if } P \text{ is false} \end{cases}$$
+
 4. **Standard Scaling Affine Transformation**:
-   $$z_j = \frac{x_j - \mu_j}{\sigma_j} \quad \text{for } j \in \{0, 1, 2, 3, 4, 5\}$$
+
+$$z_j = \frac{x_j - \mu_j}{\sigma_j} \quad \text{for } j \in \{0, 1, 2, 3, 4, 5\}$$
 
 #### Precomputed Scaling Constants (Flash ROM & In-Memory Registry)
 
@@ -449,10 +454,10 @@ flowchart TD
     C --> D["Fit 5 Estimators in Parallel<br/>(RF, SVM, LogReg, SmallNN, KNN)"]
     D --> E["Stratified 20% Holdout Split Evaluation"]
     
-    E --> F{"Holdout F1 >= Active Baseline?"}
+    E --> F{"Holdout F1 ≥ Active Baseline?"}
     
-    F -->|YES (Validated)| G["Atomic Pointer Hot-Swap<br/>(0ms Downtime In-Memory Transition)"]
-    F -->|NO (Degraded)| H["Automated Rollback Trigger<br/>(Preserve Active Registry, Log Incident)"]
+    F -->|YES - Validated| G["Atomic Pointer Hot-Swap<br/>(0ms Downtime In-Memory Transition)"]
+    F -->|NO - Degraded| H["Automated Rollback Trigger<br/>(Preserve Active Registry, Log Incident)"]
 
     classDef pass fill:#F0FDF4,stroke:#16A34A,stroke-width:2px,color:#14532D;
     classDef fail fill:#FEF2F2,stroke:#DC2626,stroke-width:2px,color:#991B1B;