Yannik Stein

activity

20142023

collaborators

3 papers

cs.IR2023

Unbiased Offline Evaluation for Learning to Rank with Business Rules

Matej Jakimov, Alexander Buchholz, Yannik Stein +1

For industrial learning-to-rank (LTR) systems, it is common that the output of a ranking model is modified, either as a results of post-processing logic that enforces business requ…

cs.CG2016

The Rainbow at the End of the Line --- A PPAD Formulation of the Colorful Carathéodory Theorem with Applications

Frédéric Meunier, Wolfgang Mulzer, Pauline Sarrabezolles +1

Let $C_{1}, ..., C_{d + 1}$ be $d + 1$ point sets in $R^{d}$ , each containing the origin in its convex hull. A subset $C$ of $⋃_{i = 1}^{d + 1} C_{i}$ is called a colorful choice (o…

cs.CG2014

Approximate k-flat Nearest Neighbor Search

Wolfgang Mulzer, Huy L. Nguyen, Paul Seiferth +1

Let $k$ be a nonnegative integer. In the approximate $k$ -flat nearest neighbor ( $k$ -ANN) problem, we are given a set $P \subset R^{d}$ of $n$ points in $d$ -dimensional space…