Vagrant Getting Started

The last few days, I was busy getting started with Vagrant. Vagrant is a nice tool to create a development environment to ‘just start’ developing. New team members, for instance, do not need to set up, but can simply run ‘vagrant up’ to have a fully configured, ready-to-start environment. Personally, in my case, it is … read more …

New Years Goals

Everyone has New Years Goals. At the end of the year, during the reflective Christmas season, we think about what we can do better in the following year. Most of the people want to do more sport, become a healthy lifestyle, quit smoking, etc.But also most of the people forget those goals very quickly. After … read more …

Extract Contact Data is here

Frankfurt, February 2019 – Extract Contact Data is online! One of my daily tasks for a honorary association is about extracting contact data like email, phone numbers and others from unstructured and long texts. While I wrote a simple command line tool to do this, I recently decided to create a little tool for this purpose! Extract … read more …

Traversing a 2D Matrix

The new years first blog is about algorithms (again😅) – more precisely: 2 dimensional matrices. I want to explore the ways how to find connected 1’s (so called islands) in a 2D array. This problem is also known as the “find the number of islands” or “connected components in an undirected graph“. Disclaimer: I generally use … read more …

Kotlin Cheat Sheet

For a project I was involved in at short notice, I had to become familiar with the Kotlin programming language. Before starting to code, I wanted to get familiar with the syntax and the language itself. As writing on a paper is the best way to learn (for me), I created the following Cheat sheet. Enjoy! … read more …

Item-Based Collaborative Filtering

Für ein Projekt an der Uni beschäftige ich mich seit längerer Zeit mit Empfehlungssystemen (Recommender Systems), welche i.d.R. aus Collaborative Filtering und Content-Based Recommendation Techniken bestehen. In diesem Blogpost möchte ich auf die Collaborative Filtering-Komponente, genauer auf das Item-Based Collaborative Filtering eingehen. Das Item-Based Collaborative Filtering wurde ursprünglich von Amazon entwickelt. “Traditionelles” Collaborative Filtering, besser … read more …