SMLEREVISE Technical Architecture
The only SMLE platform with an IRT-lite scaled scoring engine, interactive Medical Knowledge Graph, Google Embedding 2 semantic deduplication engine, and adaptive SM-2 SRS system — all built to SCFHS Blueprint and Saudi Ministry of Health protocols.
Medical Knowledge Graph (MKG)
The SMLEREVISE Medical Knowledge Graph is not just a diagram — it is a relational data structure built specifically for SCFHS pathways. Every node (disease, investigation, drug, procedure) is linked through causal and therapeutic relationships as they appear in Saudi Ministry of Health protocols.
Example: 'Cough' Symptom Node → Saudi TB Prevalence Data → MOH First-Line Treatment Protocol
- Node 1: Cough (Symptom) — a clinical presentation linked to 47 nodes in the knowledge graph
- Node 2: Saudi TB Prevalence — 15.2 per 100,000 population (WHO 2024). Data is directly linked to the clinical node.
- Node 3: MOH First-Line Treatment Protocol — INH + RIF + PZA + EMB for 6 months (first-line in Saudi Arabia).
- Relationship: Cough ← indicates ← Tuberculosis ← treated by protocol ← Saudi MOH.
Semantic Deduplication Engine (Google Embedding 2)
SMLEREVISE is the only SMLE platform that uses Google's Embedding 2 model to compute semantic similarity between questions. Every new question is embedded as a 768-dimensional vector and compared against all existing questions. If the cosine similarity exceeds 0.85, the question is flagged as a duplicate and reviewed for merging or removal.
- Vector Embedding: every question is converted to a 768-dimensional vector using Google Embedding 2
- Similarity Threshold: cosine similarity > 0.85 is flagged as a duplicate requiring review
- Variant Detection: the same clinical scenario with swapped lab values is automatically caught
- Full Coverage: ~4,500 unique concept-clinical patterns cover the entire SCFHS Blueprint
- Benchmark: UWorld — the gold standard for the hardest medical exams — uses only ~4,000 questions
IRT-lite Scaled Scoring Engine (200-800)
SMLEREVISE is the only platform that simulates the SCFHS scaled scoring system (200-800). The engine uses Item Response Theory (IRT) at a Lite level to compute scores.
- Question Difficulty (b-parameter): each question is calibrated with a difficulty coefficient from -3.0 to +3.0
- Discrimination (a-parameter): coefficient measuring the question's ability to differentiate between candidates
- Guessing (c-parameter): probability of correct answer by guessing (25% for multiple-choice)
- Formula: P(θ) = c + (1-c) / (1 + e^(-a(θ-b))) where θ is the candidate's true ability
- Scaled Score: μ = 500, σ = 100, with passing threshold 560
Adaptive SM-2 SRS System
The Spaced Repetition System in SMLEREVISE is built on the optimized SM-2 algorithm with intelligent injection of flashcards for weak topics.
- Repetition Interval: I(n) = I(n-1) × EF where EF is the ease factor (1.3 to 2.5)
- Intelligent Injection: when category performance drops below 70%, 5-10 high-yield cards are auto-injected
- Adaptation: the algorithm adjusts EF based on user performance at each review
- Calibration: cards are calibrated to the user's specified SMLE exam date
Medical Review Protocol
All medical content in SMLEREVISE undergoes a rigorous review protocol ensuring compliance with Saudi Ministry of Health protocols and the SCFHS Blueprint.
- First Review: a licensed Saudi doctor reviews content for clinical accuracy
- Protocol Verification: comparison with updated Saudi MOH protocols
- Drug Verification: confirming drug availability in Saudi Arabia and first-line status
- Second Review: additional review for high-risk content (dosages, interactions, contraindications)
- Documentation: every review is documented with reviewer name, date, and version
Security & Data Protection
SMLEREVISE adheres to the highest security standards to protect candidate data and medical content.
- Data Encryption: AES-256 for data at rest and TLS 1.3 for transmission
- Screenshot Protection: built-in system to prevent screenshots during mock exams
- Identity Verification: JWT with automatic session refresh
- Backup: daily backups with instant recovery
Ready to Prepare the Right Way?
SMLEREVISE is the only platform built from the ground up for the SMLE — with real SCFHS-scaled scoring, Saudi MOH-aligned content, and Sina for instant concept clearing without leaving the platform.