Peter Filzmoser

Dynamic log file analysis: An unsupervised cluster evolution approach for anomaly detection

2018 · Computers & Security

Technological advances and increased interconnectivity have led to a higher risk of previously unknown threats. Cyber Security therefore employs Intrusion Detection Systems that continuously monitor log lines in order to protect systems from such attacks. …

Robust principal component analysis for compositional tables

2020 · Journal of Applied Statistics

A data table arranged according to two factors can often be considered a compositional table. An example is the number of unemployed people, split according to gender and age classes. Analyzed as compositions, the relevant …

spar: Sparse Projected Averaged Regression in R

2024 · arXiv (Cornell University)

Package spar for R builds ensembles of predictive generalized linear models with high-dimensional predictors. It employs an algorithm utilizing variable screening and random projection tools to efficiently handle the computational challenges associated with large sets …