Search Results for author: Katharina Morik

Found 25 papers, 7 papers with code

Fast Inference of Tree Ensembles on ARM Devices

no code implementations15 May 2023 Simon Koschel, Sebastian Buschjäger, Claudio Lucchese, Katharina Morik

Second, we extend our implementation from ranking models to classification models such as Random Forests.

Quantization

Energy Efficiency Considerations for Popular AI Benchmarks

1 code implementation17 Apr 2023 Raphael Fischer, Matthias Jakobs, Katharina Morik

Advances in artificial intelligence need to become more resource-aware and sustainable.

Shrub Ensembles for Online Classification

no code implementations7 Dec 2021 Sebastian Buschjäger, Sibylle Hess, Katharina Morik

Among the most successful online learning methods are Decision Tree (DT) ensembles.

Classification

There is no Double-Descent in Random Forests

1 code implementation8 Nov 2021 Sebastian Buschjäger, Katharina Morik

Last, we study the diversity of an ensemble as a tool the estimate its performance.

Improving the Accuracy-Memory Trade-Off of Random Forests Via Leaf-Refinement

1 code implementation19 Oct 2021 Sebastian Buschjäger, Katharina Morik

In this paper, we revisit ensemble pruning in the context of `modernly' trained Random Forests where trees are very large.

Ensemble Pruning

Explaining Deep Learning Representations by Tracing the Training Process

1 code implementation13 Sep 2021 Lukas Pfahler, Katharina Morik

We propose a novel explanation method that explains the decisions of a deep neural network by investigating how the intermediate representations at each layer of the deep network were refined during the training process.

Noisy Labels for Weakly Supervised Gamma Hadron Classification

no code implementations30 Aug 2021 Lukas Pfahler, Mirko Bunse, Katharina Morik

Gamma hadron classification, a central machine learning task in gamma ray astronomy, is conventionally tackled with supervised learning.

Astronomy Classification

Providing Meaningful Data Summarizations Using Exemplar-based Clustering in Industry 4.0

no code implementations25 May 2021 Philipp-Jan Honysz, Alexander Schulze-Struchtrup, Sebastian Buschjäger, Katharina Morik

Data summarizations are a valuable tool to derive knowledge from large data streams and have proven their usefulness in a great number of applications.

Clustering

Bit Error Tolerance Metrics for Binarized Neural Networks

no code implementations2 Feb 2021 Sebastian Buschjäger, Jian-Jia Chen, Kuan-Hsun Chen, Mario Günzel, Katharina Morik, Rodion Novkin, Lukas Pfahler, Mikail Yayla

In this study, our objective is to investigate the internal changes in the NNs that bit flip training causes, with a focus on binarized NNs (BNNs).

Fighting Filterbubbles with Adversarial BERT-Training for News-Recommendation

no code implementations1 Jan 2021 Lukas Pfahler, Katharina Morik

Our experiments show that the features we can extract this way are significantly less predictive of the news outlet and thus offer the possibility to reduce the risk of manifestation of new filter bubbles.

News Recommendation

Generalized Negative Correlation Learning for Deep Ensembling

2 code implementations5 Nov 2020 Sebastian Buschjäger, Lukas Pfahler, Katharina Morik

Ensemble algorithms offer state of the art performance in many machine learning applications.

Resource-Constrained On-Device Learning by Dynamic Averaging

no code implementations25 Sep 2020 Lukas Heppe, Michael Kamp, Linara Adilova, Danny Heinrich, Nico Piatkowski, Katharina Morik

This paper investigates an approach to communication-efficient on-device learning of integer exponential families that can be executed on low-power processors, is privacy-preserving, and effectively minimizes communication.

BIG-bench Machine Learning Privacy Preserving

Towards Explainable Bit Error Tolerance of Resistive RAM-Based Binarized Neural Networks

no code implementations3 Feb 2020 Sebastian Buschjäger, Jian-Jia Chen, Kuan-Hsun Chen, Mario Günzel, Christian Hakert, Katharina Morik, Rodion Novkin, Lukas Pfahler, Mikail Yayla

Finally, we explore the influence of a novel regularizer that optimizes with respect to this metric, with the aim of providing a configurable trade-off in accuracy and BET.

The SpectACl of Nonconvex Clustering: A Spectral Approach to Density-Based Clustering

no code implementations1 Jul 2019 Sibylle Hess, Wouter Duivesteijn, Philipp Honysz, Katharina Morik

When it comes to clustering nonconvex shapes, two paradigms are used to find the most suitable clustering: minimum cut and maximum density.

Clustering Clustering Algorithms Evaluation

The Trustworthy Pal: Controlling the False Discovery Rate in Boolean Matrix Factorization

no code implementations1 Jul 2019 Sibylle Hess, Nico Piatkowski, Katharina Morik

The Boolean product is a disjunction of rank-1 binary matrices, each describing a feature-relation, called pattern, for a group of samples.

The PRIMPing Routine -- Tiling through Proximal Alternating Linearized Minimization

no code implementations17 Jun 2019 Sibylle Hess, Katharina Morik, Nico Piatkowski

In contrast to existing work, the new algorithm minimizes the description length of the resulting factorization.

Data Compression Model Selection

C-SALT: Mining Class-Specific ALTerations in Boolean Matrix Factorization

no code implementations17 Jun 2019 Sibylle Hess, Katharina Morik

Given labeled data represented by a binary matrix, we consider the task to derive a Boolean matrix factorization which identifies commonalities and specifications among the classes.

Evolution of Eigenvalue Decay in Deep Networks

no code implementations28 May 2019 Lukas Pfahler, Katharina Morik

The linear transformations in converged deep networks show fast eigenvalue decay.

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