Search Results for author: Yuguo Chen

Found 6 papers, 1 papers with code

A Bayesian Nonparametric Latent Space Approach to Modeling Evolving Communities in Dynamic Networks

1 code implementation16 Mar 2020 Joshua Daniel Loyal, Yuguo Chen

Our proposed approach, the hierarchical Dirichlet process latent position clustering model (HDP-LPCM), incorporates transitivity, models both individual and group level aspects of the data, and avoids the computationally expensive selection of the number of groups required by most popular methods.

Methodology

Higher-Order Spectral Clustering under Superimposed Stochastic Block Model

no code implementations16 Dec 2018 Subhadeep Paul, Olgica Milenkovic, Yuguo Chen

In particular, we prove non-asymptotic upper bounds on the misclustering error of spectral community detection for a SupSBM setting in which triangles or 3-uniform hyperedges are superimposed with undirected edges.

Clustering Community Detection +1

Spectral and matrix factorization methods for consistent community detection in multi-layer networks

no code implementations24 Apr 2017 Subhadeep Paul, Yuguo Chen

We consider the problem of estimating a consensus community structure by combining information from multiple layers of a multi-layer network using methods based on the spectral clustering or a low-rank matrix factorization.

Clustering Community Detection

Null Models and Community Detection in Multi-Layer Networks

no code implementations1 Aug 2016 Subhadeep Paul, Yuguo Chen

Multi-layer networks are networks on a set of entities (nodes) with multiple types of relations (edges) among them where each type of relation/interaction is represented as a network layer.

Community Detection Methodology Social and Information Networks Physics and Society

Orthogonal symmetric non-negative matrix factorization under the stochastic block model

no code implementations17 May 2016 Subhadeep Paul, Yuguo Chen

We present a method based on the orthogonal symmetric non-negative matrix tri-factorization of the normalized Laplacian matrix for community detection in complex networks.

Clustering Community Detection +1

Community detection in multi-relational data with restricted multi-layer stochastic blockmodel

no code implementations8 Jun 2015 Subhadeep Paul, Yuguo Chen

We derive consistency results for community assignments of the maximum likelihood estimators (MLEs) in both models where MLSBM is assumed to be the true model, and either the number of nodes or the number of types of edges or both grow.

Community Detection Stochastic Block Model

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