Search Results for author: Erik Skau

Found 6 papers, 1 papers with code

Generating Hidden Markov Models from Process Models Through Nonnegative Tensor Factorization

no code implementations3 Oct 2022 Erik Skau, Andrew Hollis, Stephan Eidenbenz, Kim Rasmussen, Boian Alexandrov

Monitoring of industrial processes is a critical capability in industry and in government to ensure reliability of production cycles, quick emergency response, and national security.

Model Selection

Distributed Out-of-Memory NMF on CPU/GPU Architectures

1 code implementation19 Feb 2022 Ismael Boureima, Manish Bhattarai, Maksim Eren, Erik Skau, Philip Romero, Stephan Eidenbenz, Boian Alexandrov

In this work, we extend NMFk by adding support for dense and sparse matrix operation on multi-node, multi-GPU systems.

Dimensionality Reduction Model Selection

Topic Analysis of Superconductivity Literature by Semantic Non-negative Matrix Factorization

no code implementations1 Dec 2021 Valentin Stanev, Erik Skau, Ichiro Takeuchi, Boian S. Alexandrov

We utilize a recently developed topic modeling method called SeNMFk, extending the standard Non-negative Matrix Factorization (NMF) methods by incorporating the semantic structure of the text, and adding a robust system for determining the number of topics.

Boolean Matrix Factorization via Nonnegative Auxiliary Optimization

no code implementations8 Jun 2021 Duc P. Truong, Erik Skau, Derek DeSantis, Boian Alexandrov

Instead of solving the BMF problem directly, this approach solves a nonnegative optimization problem with the constraint over an auxiliary matrix whose Boolean structure is identical to the initial Boolean data.

Distributed Non-Negative Tensor Train Decomposition

no code implementations4 Aug 2020 Manish Bhattarai, Gopinath Chennupati, Erik Skau, Raviteja Vangara, Hirsto Djidjev, Boian Alexandrov

Tensor train (TT) is a state-of-the-art tensor network introduced for factorization of high-dimensional tensors.

Determination of Latent Dimensionality in International Trade Flow

no code implementations29 Feb 2020 Duc P. Truong, Erik Skau, Vladimir I. Valtchinov, Boian S. Alexandrov

Nonnegative RESCAL computes a low dimensional tensor representation by finding the latent space containing multiple modalities.

Clustering Model Selection

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