Joint network topology inference in the presence of hidden nodes

M Navarro, S Rey, A Buciulea… - IEEE Transactions …, 2024‏ - ieeexplore.ieee.org
We investigate the increasingly prominent task of jointly inferring multiple networks from
nodal observations. While most joint inference methods assume that observations are …

Recovering missing node features with local structure-based embeddings

VM Tenorio, M Navarro, S Segarra… - ICASSP 2024-2024 …, 2024‏ - ieeexplore.ieee.org
Node features bolster graph-based learning when exploited jointly with network structure.
However, a lack of nodal attributes is prevalent in graph data. We present a framework to …

Limits of dense simplicial complexes

TM Roddenberry, S Segarra - Journal of Machine Learning Research, 2023‏ - jmlr.org
We develop a theory of limits for sequences of dense abstract simplicial complexes, where a
sequence is considered convergent if its homomorphism densities converge. The limiting …

Mitigating subpopulation bias for fair network topology inference

M Navarro, S Rey, A Buciulea… - 2024 32nd …, 2024‏ - ieeexplore.ieee.org
We consider fair network topology inference from nodal observations. Real-world networks
often exhibit biased connections based on sensitive nodal attributes. Hence, different …

Online Network Inference from Graph-Stationary Signals with Hidden Nodes

A Buciulea, M Navarro, S Rey, S Segarra… - arxiv preprint arxiv …, 2024‏ - arxiv.org
Graph learning is the fundamental task of estimating unknown graph connectivity from
available data. Typical approaches assume that not only is all information available …

Joint graph learning from Gaussian observations in the presence of hidden nodes

S Rey, M Navarro, A Buciulea… - 2022 56th Asilomar …, 2022‏ - ieeexplore.ieee.org
Graph learning problems are typically approached by focusing on learning the topology of a
single graph when signals from all nodes are available. However, many contemporary …

Scalable Implicit Graphon Learning

A Azizpour, N Zilberstein, S Segarra - arxiv preprint arxiv:2410.17464, 2024‏ - arxiv.org
Graphons are continuous models that represent the structure of graphs and allow the
generation of graphs of varying sizes. We propose Scalable Implicit Graphon Learning …

Multiview Graph Learning with Consensus Graph

A Karaaslanli, S Aviyente - IEEE Transactions on Signal and …, 2025‏ - ieeexplore.ieee.org
Graph topology inference is a significant task in many application domains. Existing
approaches are mostly limited to learning a single graph assuming that the observed data is …

Nonparametric Two-Sample Test for Networks Using Joint Graphon Estimation

B Sischka, G Kauermann - arxiv preprint arxiv:2303.16014, 2023‏ - arxiv.org
This paper focuses on the comparison of networks on the basis of statistical inference. For
that purpose, we rely on smooth graphon models as a nonparametric modeling strategy that …

[PDF][PDF] Graphon models for network data: estimation, extensions and applications

B Sischka - 2023‏ - edoc.ub.uni-muenchen.de
Network data are nowadays prevalent in various fields such as social and political sciences,
economics, biology, neurosciences, and others. This is due to the fact that the structure …