Skip to content
View LennartJohnBaals's full-sized avatar

Block or report LennartJohnBaals

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
LennartJohnBaals/README.md

Lennart John Baals

ORCID Google Scholar LinkedIn

PhD Candidate & Applied ML Researcher | Graph-based Credit Scoring | Digital Finance Risk

About

Applied ML & quantitative finance researcher building reproducible credit-risk, graph-ML, and digital-finance analytics.

Affiliation Role
University of Twente PhD Candidate
Bern University of Applied Sciences Employed Doctoral Researcher
Columbia IEOR Visiting PhD Researcher (2025)

Dissertation: Risk Management in Digital Finance: Assessment and Pricing in an Emerging Fintech Era

Research Focus

  • Graph-based Credit Scoring — borrower similarity networks, graph features, and supervised models for default prediction
  • Credit-Risk Modeling — ML-driven decision support for risk segmentation and assessment
  • Digital Finance Risk — bubble detection and regime dynamics in crypto, NFT, and DeFi markets
  • Reproducible Research — documented workflows, notebooks, and reproducibility-oriented repo structure

Research Projects

Project Description Status
Network-based Credit Risk Models Graph-based credit scoring and borrower similarity modeling Active
Narrative Digital Finance Structural breaks, bubbles & market narratives Active
COST Action CA19130 Fintech and AI in Finance (international research network) Completed
MSCA IRP16 Time series forecasting & explainability Active
MSCA IRP17 Mean-variance optimization research Active

Selected Publications

Publication list is available via:

(Some publication metadata can also be retrieved via OpenAlex.)

Contact

Google Scholar

Pinned Loading

  1. selected-projects selected-projects Public

    Curated portfolio of selected public projects (credit risk, graph ML, digital finance) + links.

  2. p2p-model-bondora p2p-model-bondora Public

    P2P lending analytics & credit-risk modeling on Bondora data (reproducible notebooks + pipeline).

    Jupyter Notebook

  3. COST-Fintech-AI-in-Finance COST-Fintech-AI-in-Finance Public

    Collaborative materials for Fintech/AI-in-Finance activities (network contributions + documentation).

    HTML

  4. Narrative-Digital-Finance Narrative-Digital-Finance Public

    LaTeX research writing repo with structured build workflow and supporting artifacts.

    TeX

  5. MSCA_IRP16 MSCA_IRP16 Public

    MSCA project work (IRP16): documented notebook workflow and reproducible analysis artifacts.

    Jupyter Notebook

  6. MSCA_IRP17 MSCA_IRP17 Public

    MSCA project work (IRP17): continuation of IRP-style research pipeline and documentation.

    Jupyter Notebook