Results 21 to 30 of about 244,754 (100)

Directional clustering through matrix factorization [PDF]

open access: yes, 2016
This paper deals with a clustering problem where feature vectors are clustered depending on the angle between feature vectors, that is, feature vectors are grouped together if they point roughly in the same direction.
Blumensath, Thomas
core   +1 more source

Blind Audio Source Separation Using Nonnegative Tensor Factorization Techniques [PDF]

open access: yes, 2008
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2008Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2008Bu çalışmada, kokteyl partisi problemi olarak da bilinen, gözü kapalı ses işareti ...
Keyder, Mehmet Altuğ
core  

Controlling sparseness in nonnegative tensor factorization

open access: yes, 2006
Non-negative tensor factorization (NTF) has recently been proposed as sparse and efficient image representation (Welling and Weber, Patt. Rec. Let., 2001).
Christoph Schnörr, Matthias Heiler
core   +1 more source

Robust Manifold Nonnegative Tucker Factorization for Tensor Data Representation [PDF]

open access: yes, 2022
Nonnegative Tucker Factorization (NTF) minimizes the euclidean distance or Kullback-Leibler divergence between the original data and its low-rank approximation which often suffers from grossly corruptions or outliers and the neglect of manifold ...
Tang, Linruize   +3 more
core  

Using underapproximations for sparse nonnegative matrix factorization [PDF]

open access: yes
Nonnegative Matrix Factorization (NMF) has gathered a lot of attention in the last decade and has been successfully applied in numerous applications.
GILLIS, Nicolas, GLINEUR, François
core  

Nonnegative factorization and the maximum edge biclique problem [PDF]

open access: yes
Nonnegative matrix factorization (NMF) is a data analysis technique based on the approximation of a nonnegative matrix with a product of two nonnegative factors, which allows compression and interpretation of nonnegative data. In this paper, we study the
GILLIS, Nicolas, GLINEUR, François
core  

Coupled Nonnegative Matrix/Tensor Factorization in Brain Imaging Data

open access: yes, 2020
Continuous advancement of brain imaging techniques has witnessed data analysis methods evolving from matrix component analysis to tensor component analysis, from individual analysis to group analysis regarding the analysis of brain data with multi-set/
Wang, Xiulin   +4 more
core   +1 more source

Theorems on positive data: on the uniqueness of NMF. [PDF]

open access: yes, 2008
We investigate the conditions for which nonnegative matrix factorization (NMF) is unique and introduce several theorems which can determine whether the decomposition is in fact unique or not.
Plumbley, MD   +9 more
core   +1 more source

Multichannel nonnegative tensor factorization with structured constraints for user-guided audio source separation

open access: yes, 2011
International audienceSeparating multiple tracks from professionally produced music recordings (PPMRs) is still a challenging problem. We address this task with a user-guided approach in which the separation system is provided segmental information ...
Cedric Fevotte   +7 more
core   +1 more source

NIMFA: A Python Library for Nonnegative Matrix Factorization [PDF]

open access: yes, 2012
NIMFA is an open-source Python library that provides a unified interface to nonnegative matrix factorization algorithms. It includes implementations of state-of-the-art factorization methods, initialization approaches, and quality scoring.
Zupan, Blaz, Zitnik, Marinka
core  

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