Alexander Hapfelmeier

According to our database, Alexander Hapfelmeier authored at least 13 papers between 2011 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2024

Multi forests: Variable importance for multi-class outcomes.

Roman Hornung, Alexander Hapfelmeier

CoRR, 2024

2023

Efficient permutation testing of variable importance measures by the example of random forests.

Alexander Hapfelmeier, Roman Hornung, Bernhard Haller

Comput. Stat. Data Anal., May, 2023

2022

Sequential Permutation Testing of Random Forest Variable Importance Measures.

Alexander Hapfelmeier, Roman Hornung, Bernhard Haller

CoRR, 2022

2019

A Simulation Study Comparing Different Statistical Approaches for the Identification of Predictive Biomarkers.

Bernhard Haller, Kurt Ulm, Alexander Hapfelmeier

Comput. Math. Methods Medicine, 2019

2017

Nonparametric Subgroup Identification by PRIM and CART: A Simulation and Application Study.

Armin Ott, Alexander Hapfelmeier

Comput. Math. Methods Medicine, 2017

2015

Letter to the Editor: On the term 'interaction' and related phrases in the literature on Random Forests.

Anne-Laure Boulesteix, Silke Janitza, Alexander Hapfelmeier, Kristel Van Steen, Carolin Strobl

Briefings Bioinform., 2015

2014

A new variable importance measure for random forests with missing data.

Alexander Hapfelmeier, Torsten Hothorn, Kurt Ulm, Carolin Strobl

Stat. Comput., 2014

Variable selection by Random Forests using data with missing values.

Alexander Hapfelmeier, Kurt Ulm

Comput. Stat. Data Anal., 2014

2013

A new variable selection approach using Random Forests.

Alexander Hapfelmeier, Kurt Ulm

Comput. Stat. Data Anal., 2013

2012

Analysis of missing data with random forests.

Alexander Hapfelmeier

PhD thesis, 2012

Recursive partitioning on incomplete data using surrogate decisions and multiple imputation.

Alexander Hapfelmeier, Torsten Hothorn, Kurt Ulm

Comput. Stat. Data Anal., 2012

2011

Needs assessment for next generation computer-aided mammography reference image databases and evaluation studies.

Alexander Horsch, Alexander Hapfelmeier, Matthias Elter

Int. J. Comput. Assist. Radiol. Surg., 2011

Image feature evaluation in two new mammography CAD prototypes.

Alexander Hapfelmeier, Alexander Horsch

Int. J. Comput. Assist. Radiol. Surg., 2011