Hi there! I am a *data scientist* based in Vienna, and this is my knowledge repository. I call it my *second brain*, as I organize what I study and read into a structure that aligns with my way of thinking. For me, learning is all about revisiting concepts, connecting ideas and keeping things fresh. My second brain helps me out on this. My areas of focus are *statistics*, *machine learning*, and *finance*. Feel free to connect with me here: <a href="https://github.com/bernhard-pfann" class="pill-button">GitHub</a> <a href="https://bernhard-pfann.medium.com" class="pill-button">Medium</a> <a href="https://www.linkedin.com/in/bernhard-pfann/" class="pill-button">LinkedIn</a> ## Recently Edited Notes | Note | Last Edited | | --------------------------------------------------------------------------------------------- | ----------- | | [[notes/Quant Finance/Geometric Brownian Motion.md\|Geometric Brownian Motion]] | 2025-03-09 | | [[notes/Quant Finance/Itô Processes and Itô's Lemma.md\|Itô Processes and Itô's Lemma]] | 2025-03-08 | | [[notes/Quant Finance/Brownian Motion.md\|Brownian Motion]] | 2025-03-06 | | [[notes/Quant Finance/Brownian Motion Property.md\|Brownian Motion Property]] | 2025-03-06 | | [[notes/Calculus/Derivative in Differential Form.md\|Derivative in Differential Form]] | 2025-03-06 | | [[notes/Calculus/Total Derivative.md\|Total Derivative]] | 2025-03-05 | | [[notes/Quant Finance/Partial Autocorrelation Function.md\|Partial Autocorrelation Function]] | 2025-02-27 | | [[notes/Quant Finance/Gamblers Ruin.md\|Gamblers Ruin]] | 2025-02-27 | | [[notes/Quant Finance/Calibrating Binomial Tree.md\|Calibrating Binomial Tree]] | 2025-02-26 | | [[notes/Quant Finance/Forecast Error.md\|Forecast Error]] | 2025-02-24 |