Search Results for author: Pedro Mercado

Found 7 papers, 4 papers with code

Generalized Matrix Means for Semi-Supervised Learning with Multilayer Graphs

no code implementations NeurIPS 2019 Pedro Mercado, Francesco Tudisco, Matthias Hein

We study the task of semi-supervised learning on multilayer graphs by taking into account both labeled and unlabeled observations together with the information encoded by each individual graph layer.

Stochastic Block Model

Spectral Clustering of Signed Graphs via Matrix Power Means

no code implementations15 May 2019 Pedro Mercado, Francesco Tudisco, Matthias Hein

Moreover, we prove that the eigenvalues and eigenvector of the signed power mean Laplacian concentrate around their expectation under reasonable conditions in the general Stochastic Block Model.

Clustering Stochastic Block Model

Community detection in networks via nonlinear modularity eigenvectors

no code implementations18 Aug 2017 Francesco Tudisco, Pedro Mercado, Matthias Hein

In this work we propose a nonlinear relaxation which is instead based on the spectrum of a nonlinear modularity operator $\mathcal M$.

Community Detection

Clustering Signed Networks with the Geometric Mean of Laplacians

1 code implementation NeurIPS 2016 Pedro Mercado, Francesco Tudisco, Matthias Hein

As a solution we propose to use the geometric mean of the Laplacians of positive and negative part and show that it outperforms the existing approaches.

Clustering

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