Erick Mwangi
Back to All Case Studies
AI Research2024 — 2025

ETHOS Framework

Published Research & AI Trustworthy Healthcare Decision Framework

Role & Responsibility:Lead Researcher & AI Systems Architect
Primary Metrics:Peer-Reviewed Publication • Deterministic Safety Guardrails • Sub-100ms Inference
ETHOS Framework

Problem Context & Objectives

Black-box diagnostic AI models present unacceptable risks when deployed in rural clinical settings without specialist oversight. ETHOS introduces a verifiable, constraint-bound inference framework that combines deep learning with expert rule safety bounds.

Architectural Highlights & Systems Engineering

  • Pattern 1

    Deterministic Fallback Trees: Hybrid inference engine that automatically downgrades AI recommendations to deterministic clinical decision trees whenever diagnostic confidence drops below ethical thresholds.

  • Pattern 2

    Explainable Diagnostic Surfaces: Integrated SHAP and LIME visual attribution maps displaying exact clinical indicators responsible for model recommendations.

  • Pattern 3

    Sub-100ms Micro-Controller Deployment: Optimized model weights for edge execution on micro-server hardware without requiring active internet connectivity.

Technology Stack

PythonPyTorchSHAP/LIMEFastAPIBibTeXLaTeX

Compliance Standards

  • WHO Principles for Ethics & Governance of AI for Health
  • IEEE Ethical AI Standards
Interactive Architectural Schema

ETHOS Framework Pipeline Blueprint

Click nodes to inspect implementation payload

Deterministic Guardrails

Ethical Safety Bounds
Zero Unchecked Diagnoses

Hybrid decision engine downgrading AI outputs to WHO-certified clinical decision trees if model confidence falls below 85%.

PythonPyTorchRuleEngine
Payload / Schema Inspection:
{
  "framework": "ETHOS-v2.1",
  "model_confidence": 0.74,
  "threshold": 0.85,
  "action": "FALLBACK_TO_DETERMINISTIC_TREE",
  "active_rule": "WHO_MATERNAL_HYPERTENSION_PROTOCOL_3"
}

Measurable Outcomes & Impact

  • Outcome #1Published research paper presenting ethical AI deployment methodologies for developing nations.
  • Outcome #2Integrated into TotoAfya diagnostic recommendation pipeline as core safety layer.