Frank Nussbaum

franknu

Tel:      +49-3641 9 46328

Fax:     +49-3641 9 46322
Address: Mälzerstraße 3, 07745 Jena
E-mail:  frank.nussbaum@dlr.de
 
 
 
 
 
 

Research Interests


  • (non-)convex optimization
  • sparse and low-rank methods (e.g., regularization)
  • causality, probabilistic models

Software


  • estimators for CG (conditional Gaussian) distributions (especially sparse + low-rank pairwise models): cgmodsel

Publications


  • F. Nussbaum and J. Giesen. Disentangling Direct and Indirect Interactions in Polytomous Item Response Theory Models. To appear in: Proceedings of the 29th International Joint Conference on Artificial Intelligence (IJCAI), (2020)
  • F. Nussbaum and J. Giesen (2020). Pairwise sparse+ low-rank models for variables of mixed type. Journal of Multivariate Analysis, 178, 104601.
  • J. Giesen, F. Nussbaum, and C. Schneider. Efficient Regularization Parameter Selection for Latent Variable Graphical Models via Bi-Level Optimization. Proceedings of the 28th International Joint Conference on Artificial Intelligence (IJCAI), (2019)
  • F. Nussbaum and J. Giesen. Ising Models with Latent Conditional Gaussian Variables. Proceedings of the 30th International Conference on Algorithmic Learning Theory (ALT), (2019)