Search Results for author: Rasmus Bro

Found 6 papers, 2 papers with code

An AO-ADMM approach to constraining PARAFAC2 on all modes

1 code implementation4 Oct 2021 Marie Roald, Carla Schenker, Vince D. Calhoun, Tülay Adalı, Rasmus Bro, Jeremy E. Cohen, Evrim Acar

We also apply our model to two real-world datasets from neuroscience and chemometrics, and show that constraining the evolving mode improves the interpretability of the extracted patterns.

Concurrent Alternating Least Squares for multiple simultaneous Canonical Polyadic Decompositions

1 code implementation9 Oct 2020 Christos Psarras, Lars Karlsson, Rasmus Bro, Paolo Bientinesi

We observe that, in practice, experts often have to compute multiple decompositions of the same tensor, each with a small number of components (typically fewer than 20), to ultimately find the best ones to use for the application at hand.

Interpretable Feature Learning in Multivariate Big Data Analysis for Network Monitoring

no code implementations5 Jul 2019 José Camacho, Katarzyna Wasielewska, Rasmus Bro, David Kotz

There is an increasing interest in the development of new data-driven models useful to assess the performance of communication networks.

Anomaly Detection

Cross-product Penalized Component Analysis (XCAN)

no code implementations28 Jun 2019 José Camacho, Evrim Acar, Morten A. Rasmussen, Rasmus Bro

In this paper, we introduce the cross-product penalized component analysis (XCAN), a sparse matrix factorization based on the optimization of a loss function that allows a trade-off between variance maximization and structural preservation.

Clustering

Nonnegative PARAFAC2: a flexible coupling approach

no code implementations14 Feb 2018 Jeremy E. Cohen, Rasmus Bro

In the following manuscript, a relaxation of the PARAFAC2 model is introduced, that allows for imposing nonnegativity constraints on the varying mode.

Tensor Decomposition

Joint Tensor Factorization and Outlying Slab Suppression with Applications

no code implementations16 Jul 2015 Xiao Fu, Kejun Huang, Wing-Kin Ma, Nicholas D. Sidiropoulos, Rasmus Bro

Convergence of the proposed algorithm is also easy to analyze under the framework of alternating optimization and its variants.

Speech Separation

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