Search Results for author: Harald Binder

Found 13 papers, 8 papers with code

Combining propensity score methods with variational autoencoders for generating synthetic data in presence of latent sub-groups

1 code implementation12 Dec 2023 Kiana Farhadyar, Federico Bonofiglio, Maren Hackenberg, Daniela Zoeller, Harald Binder

The sources of such heterogeneity might be known, e. g., as indicated by sub-groups labels, or might be unknown and thus reflected only in properties of distributions, such as bimodality or skewness.

Synthetic Data Generation

A statistical approach to latent dynamic modeling with differential equations

1 code implementation27 Nov 2023 Maren Hackenberg, Astrid Pechmann, Clemens Kreutz, Janbernd Kirschner, Harald Binder

Neural networks are used for obtaining a low-dimensional latent space for dynamic modeling from a potentially large number of variables, and for obtaining patient-specific ODE parameters from baseline variables.

Deep learning and differential equations for modeling changes in individual-level latent dynamics between observation periods

no code implementations15 Feb 2022 Göran Köber, Raffael Kalisch, Lara Puhlmann, Andrea Chmitorz, Anita Schick, Harald Binder

These serve as interpretable resilience-related outcomes, to be predicted from characteristics of individuals, measured at baseline and a follow-up time point, and selecting a small set of important predictors.

Dimensionality Reduction

Adapting deep generative approaches for getting synthetic data with realistic marginal distributions

no code implementations14 May 2021 Kiana Farhadyar, Federico Bonofiglio, Daniela Zoeller, Harald Binder

While there are extensions that assume other distributions for the latent space, this does not generally increase flexibility for data with many different distributions.

Synthetic Data Generation

Using Differentiable Programming for Flexible Statistical Modeling

1 code implementation7 Dec 2020 Maren Hackenberg, Marlon Grodd, Clemens Kreutz, Martina Fischer, Janina Esins, Linus Grabenhenrich, Christian Karagiannidis, Harald Binder

Differentiable programming has recently received much interest as a paradigm that facilitates taking gradients of computer programs.

Deep dynamic modeling with just two time points: Can we still allow for individual trajectories?

1 code implementation1 Dec 2020 Maren Hackenberg, Philipp Harms, Michelle Pfaffenlehner, Astrid Pechmann, Janbernd Kirschner, Thorsten Schmidt, Harald Binder

Inspired by recent advances that allow to combine deep learning with dynamic modeling, we investigate whether such approaches can be useful for uncovering complex structure, in particular for an extreme small data setting with only two observations time points for each individual.

Is there a role for statistics in artificial intelligence?

no code implementations13 Sep 2020 Sarah Friedrich, Gerd Antes, Sigrid Behr, Harald Binder, Werner Brannath, Florian Dumpert, Katja Ickstadt, Hans Kestler, Johannes Lederer, Heinz Leitgöb, Markus Pauly, Ansgar Steland, Adalbert Wilhelm, Tim Friede

The research on and application of artificial intelligence (AI) has triggered a comprehensive scientific, economic, social and political discussion.

The JuliaConnectoR: a functionally oriented interface for integrating Julia in R

1 code implementation13 May 2020 Stefan Lenz, Maren Hackenberg, Harald Binder

Like many groups considering the new programming language Julia, we faced the challenge of accessing the algorithms that we develop in Julia from R. Therefore, we developed the R package JuliaConnectoR, available from the CRAN repository and GitHub (https://github. com/stefan-m-lenz/JuliaConnectoR), in particular for making advanced deep learning tools available.

Deep generative models in DataSHIELD

1 code implementation11 Mar 2020 Stefan Lenz, Harald Binder

Such data sets of artificial patients, which are not linked to real patients, can then be used for joint analyses.

Clustering

Distributed Multivariate Regression Modeling For Selecting Biomarkers Under Data Protection Constraints

1 code implementation1 Mar 2018 Daniela Zöller, Harald Binder

To minimize the amount of transferred data and the number of calls, we also provide a heuristic variant of the approach.

regression Variable Selection

Modeling Activity Tracker Data Using Deep Boltzmann Machines

no code implementations28 Feb 2018 Martin Treppner, Stefan Lenz, Harald Binder, Daniela Zöller

To investigate the feasibility of deep learning approaches for unsupervised learning with such data, we examine weekly usage patterns of Fitbit activity trackers with deep Boltzmann machines (DBMs).

The Evolution of Boosting Algorithms - From Machine Learning to Statistical Modelling

1 code implementation6 Mar 2014 Andreas Mayr, Harald Binder, Olaf Gefeller, Matthias Schmid

This review article attempts to highlight this evolution of boosting algorithms from machine learning to statistical modelling.

Methodology

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