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lebede-ngartera/README.md
Professional Title Animation
Research Focus



TeraSystemsAI LLC — Trustworthy AI Research & Engineering


Lebede Ngartera

AI Research Strategist | Applied Mathematician | Machine Learning Engineer
Founder & Chief Research Architect, TeraSystemsAI LLC

Ph.D. in Applied Mathematics • Trustworthy AI • Bayesian Machine Learning • Environmental Intelligence • Decision Intelligence

I design and engineer trustworthy AI systems that support high-stakes decision-making through scientific rigor, uncertainty-aware learning, and evidence-grounded reasoning.

My work bridges peer-reviewed research and production-oriented AI engineering, translating advances in applied mathematics, probabilistic machine learning, and artificial intelligence into systems that remain transparent, auditable, and reliable under real-world conditions.

My current research focuses on:

  • Trustworthy AI
  • Uncertainty Quantification
  • Evidence-Governed AI
  • Environmental Intelligence
  • Healthcare AI
  • Fraud Detection
  • Decision Intelligence
  • AI Governance

Rather than asking:

"Can an AI system produce an answer?"

my work explores a more fundamental question:

"Can the available evidence justify that answer, and how confidently should it be trusted?"


Selected Research Publications

Title Journal Year DOI
BRAG: Bayesian Retrieval-Augmented Generation; A Methodological Framework for Evidence-Governed Decision Support Machine Learning and Knowledge Extraction 2026 https://doi.org/10.3390/make8060151
Stochastic Inventory Optimization with Coherent Risk Measures: A Decision-Theoretic Framework for Probabilistic Forecasting and Constrained Optimization Journal of Risk and Financial Management 2026 https://doi.org/10.3390/jrfm19030173
Bayesian RAG: Uncertainty-Aware Retrieval for Reliable Financial Question Answering Frontiers in Artificial Intelligence 2026 https://doi.org/10.3389/frai.2025.1668172
Hybrid Naïve Bayes Models for Scam Detection IEEE Access 2025 https://doi.org/10.1109/access.2025.3569216
Enhancing Autonomous Systems with Bayesian Neural Networks Frontiers in Built Environment 2025 https://doi.org/10.3389/fbuil.2025.1597255
Application of Bayesian Neural Networks in Healthcare Machine Learning and Knowledge Extraction 2024 https://doi.org/10.3390/make6040127

Complete publication list: https://www.terasystems.ai/publications.html


Research Areas

  • Trustworthy AI
  • Bayesian & Probabilistic Machine Learning
  • Uncertainty Quantification
  • Environmental Intelligence
  • Evidence-Governed Retrieval-Augmented Generation
  • AI Governance
  • Decision Intelligence
  • Healthcare AI
  • Financial AI
  • Industrial AI
  • Explainable AI
  • Reproducible Machine Learning

Selected Engineering Projects

Trusted Environmental Intelligence (TEI)

A scientific initiative advancing evidence-bounded environmental interpretation through the Environmental Concordance Framework (ECF), quantified reliability, deterministic reasoning, and transparent environmental intelligence.

Explore


Customer Churn Risk Prediction

End-to-end machine learning pipeline emphasizing reproducibility, leakage prevention, explainability, calibration, and disciplined evaluation.

Repository

https://github.com/lebede-ngartera/customer-churn-risk-ml


Supply Chain Decision Intelligence

Decision intelligence integrating probabilistic forecasting, constrained optimization, coherent risk measures, and Monte Carlo simulation for operational planning under uncertainty.

Repository

https://github.com/lebede-ngartera/supply-chain-decision-intelligence


GeoFusion AI

Industrial multimodal AI platform integrating CAD geometry, engineering metadata, graph neural networks, retrieval, anomaly detection, and uncertainty-aware prediction.

Repository

https://lebede-ngartera.github.io/Industrial-3d-geometry-ai/


Scam Detection via Hybrid Bayesian Models

Implementation of peer-reviewed probabilistic models for scam detection in highly imbalanced environments.

Repository

In Progress


Research Philosophy

I believe trustworthy AI emerges from the integration of:

  • Scientific Research
  • Engineering Discipline
  • Transparent Evaluation

Research establishes scientific foundations.

Engineering transforms theory into deployable systems.

Evaluation determines whether a system deserves trust.

My work emphasizes making uncertainty explicit, quantifying reliability, and supporting accountable decision-making rather than optimizing single-point performance metrics.


Current Research Interests

  • Trustworthy AI
  • Environmental Intelligence
  • Bayesian Machine Learning
  • AI Governance
  • Evidence-Governed AI
  • Decision Intelligence
  • Healthcare AI
  • Financial AI
  • Industrial AI
  • Document Intelligence
  • Uncertainty Quantification
  • Explainable AI

Connect with Me

WebsitePublicationsLinkedInGitHub


"Building AI systems that know not only what they can infer, but also when the available evidence is insufficient."

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  1. customer-churn-risk-ml customer-churn-risk-ml Public

    End-to-end machine learning pipeline for customer churn risk prediction using real-world tabular data, with a focus on reproducibility, evaluation, and explainability.

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  2. lebede-ngartera.github.io lebede-ngartera.github.io Public

    Portfolio

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  3. orcid orcid Public

    🔬 ORCID Portfolio - Professional academic showcase featuring research publications, ORCID credentials, and AI expertise. Part of the Golden Edge Technology Showcase series.

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  4. portfolio portfolio Public

    GitHub Profile & Portfolio

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