lisson.constantin

Teaching

Fall Term 2026 · EBS Universität

• BSc Data Science (Labs)→
  Course homepage

Fall Term 2024 · EBS Universität

BSc Data Science (Lecture slides)

• Linear Regression→
• Classification→
• Multiple Testing & Resampling→
• Model Selection & Regularization→
• Tree-Based Methods→
• Unsupervised Learning→

Explorables

• Meaningless Price Path

  A freshly generated meaningless price path, based on a Brownian Motion with drift — the model that says markets are efficient and your stock picks are pure luck. Consider it an invitation to meditate on how false pattern recognition may lead one astray.

  A simulated stock price chart.

  click the chart for a fresh path

• 字 Radix — Learn characters without brute force→
  An app Claude and I built for learning Chinese and Japanese characters without spaced repetition and without rote visual memorization. Built for my own study, shared because it might help someone.
• Game of Life→
  Conway’s cellular automaton — a few rules about birth and death on a grid, out of which gliders, oscillators, and deterministic chaos emerge. Cells are coloured by how crowded their neighbourhood is.
  An animated Game of Life grid.
• Shrinkage — Lasso, Ridge, and Elastic Net→
  An interactive version of Tibshirani’s “Lasso Picture” to illustrate what the penalty parameter does in regularized regression and how shrinkage and variable selection are special cases of the elastic net idea.
  Two diagrams of elliptical loss contours, one meeting a lasso constraint diamond at its corner and one meeting a ridge constraint circle off-axis.
• Block Bootstrap — alternative histories for time series→
  Resample time series in 30-day blocks and the structure that matters — cross-asset correlation, volatility clustering — survives into every alternative history. Built up visually from the plain bootstrap, with the method’s limitations demonstrated as honestly as its powers.
  Three strips comparing the original sample, a block-bootstrap resample of contiguous chunks, and an i.i.d. resample scrambled into confetti.
• Map of the shadow banking system→
  An interactive rebuild of the New York Fed’s famous wall map of pre-crisis market-based finance (Pozsar et al., Staff Report No. 458). Take the guided tour, or hover or tap any box, band, or flow — conduits, SIVs, ABS CDOs, money funds, and the crisis facilities that backstopped them — and the map explains itself in the words of the report.
• CLT — the Central Limit Theorem on a Galton board→
  Drop balls through a quincunx and watch a bell curve assemble itself, with a live histogram, kernel density estimate, normal fit, and a Kolmogorov–Smirnov test. A second mode shows the same bell emerging no matter how lumpy or skewed the underlying distribution is.
  An animated Galton board assembling a bell curve, beside its empirical, kernel density, and normal CDFs.

• 🚧 A field guide to information theory→
  Shannon’s 1948 theory, from first principles to the noisy channel: surprise and entropy, twenty questions, a live Huffman coder, typical sets computed honestly, the entropy of English measured on the page’s own prose, mutual information, KL divergence, and an image corrupted by noise and rescued by a Hamming code you can poke at. Every idea stated formally and playable interactively.
• 🚧 Classification: Sensitivity, specificity, precision, recall→
  One confusion matrix, four fields, a dozen names. Drag a threshold through two overlapping score distributions and watch the table, the Venn diagrams, and the ROC and precision–recall curves move with it; see why a 99%-specific test can still be mostly wrong, find aircraft on a simulated radar scope, and learn why medicine says sensitivity where libraries say recall.
• 🚧 Overtones — the hidden chord in every note→
  Why the same A sounds different on a flute, an oboe and a trumpet. Pluck a string and hear its modes, draw a wave and hear its harmonics, take away a note’s fundamental without changing its pitch, and find out why drums and bells don’t play whole numbers. Then take real orchestral instruments apart: overtone spectra measured from anechoic recordings, rebuilt partial by partial until you can’t tell the copy from the original.
• 🚧 The circle of fifths, from the ground up→
  Why musicians draw twelve notes in that odd order. Start from a keyboard and a clock face, hear why the fifth is the strongest bond between two notes, walk around the clock in fifths, and fold it into the circle. Then use it: keys as slices, key signatures, the six chords of every key, and the Pythagorean comma that keeps the circle from quite closing.
• 🚧 Urlicht — a Mahler life→
  A small, dark, Stardew-shaped biography of Gustav Mahler, 1880–1911. Winters you conduct, summers you compose in the lakeside huts, and the tragedies arrive on schedule regardless of how well you play. Twelve chapters from the Bad Hall spa theatre to the sanatorium of 1911; finishing a work plays its actual theme, from the Resurrection chorale to the Adagietto.

Writing

• Using Prospect Theory to Determine Investor Risk Aversion→
  In: Liermann, V., Stegmann, C. (eds). The Impact of Digital Transformation and FinTech on the Finance Professional. Palgrave Macmillan · 2019
• Robust Filtering for Financial Time Series→
  Master thesis · SSRN · 2017
• The Components of Private Debt Performance→
  Giuzio, M., Gintschel, A., Paterlini, S. The Journal of Alternative Investments, 20(4), 21–35 · 2018 · Research support

Elsewhere

Find me on LinkedIn, book a time to talk, or write to public@lisson.co.