Welcome

Mathematics & computer science applied to data

Université Laval — Québec

Maths + code to understand, predict and secure real-world systems.

Salem Nkunda Nyisingize

This week

New — the “biblical finance” series continues. Three more articles, following Finance According to Solomon: Ecclesiastes, Wisdom and Leviticus (the hedonic treadmill, the first known discounting formula, the first known actuarial table); the Parable of the Talents, Jacob and Joseph (geometric compounding, the Matthew effect, an equity contract, the doubled dream as a Bayesian signal); and Ecclesiasticus (Ben Sira), the most financial of the wisdom books — recovery rates, suretyship, fraud thresholds, bookkeeping. Eighteen more interactive simulations.

Ecclesiastes, Wisdom, Leviticus → Talents, Jacob and Joseph → Ecclesiasticus (Ben Sira) →

Last week

A trilogy on the quantitative finance of persons — the dynamics of accumulation (the process that grows a fortune), the arithmetic of ruin (seven defensive laws, from variance drag to the Cramér–Lundberg theorem), and finance according to Solomon (the Book of Proverbs reread in equations), which opened the biblical series.

Dynamics of Accumulation → Arithmetic of Ruin → Finance According to Solomon →

Highlights

🔗

Copula Laboratory

Interactive simulation of dependence structures: five copula families, tail dependence, and Sklar's theorem in real time.

Open the lab →
🚀

Zero → One Lab

Six ideas from Zero to One (Thiel & Masters) restated as models: the power law, competitive erosion, Pólya urn, secrets and the 10x rule.

Open the lab →

Fractal Explorer

GPU visualization of Mandelbrot and Julia sets. Infinite zoom into the complex dynamics z² + c.

Explore →
🤖

FindSpot

Interactive ML demo to understand a model and its results in real time.

See the demo →
📈

Time Series

Supervised formulation, walk-forward validation, baselines and multi-step strategies.

Read →
🌍

Alimentrace

Agri-food traceability infrastructure for low-connectivity environments — from African farms to Québec grocery stores (CTO). (in development)

See the project →

Posters

OpenSpot Poster

OpenSpot

Academic poster: visualization, analysis and key results.

Contact

📧 salemnknd@gmail.com

📍 Québec, Canada