Search Results for author: Nairouz Mrabah

Found 5 papers, 4 papers with code

Hierarchical Aggregations for High-Dimensional Multiplex Graph Embedding

1 code implementation28 Dec 2023 Kamel Abdous, Nairouz Mrabah, Mohamed Bouguessa

To address these issues, we propose HMGE, a novel embedding method based on hierarchical aggregation for high-dimensional multiplex graphs.

Graph Embedding Link Prediction +1

A Contrastive Variational Graph Auto-Encoder for Node Clustering

1 code implementation28 Dec 2023 Nairouz Mrabah, Mohamed Bouguessa, Riadh Ksantini

Thanks to a newly identified term, our lower bound can escape Posterior Collapse and has more flexibility to account for the difference between the inference and generative models.

Clustering Contrastive Learning +2

Rethinking Graph Auto-Encoder Models for Attributed Graph Clustering

1 code implementation19 Jul 2021 Nairouz Mrabah, Mohamed Bouguessa, Mohamed Fawzi Touati, Riadh Ksantini

We study these issues from two aspects: (1) there is a trade-off between Feature Randomness and Feature Drift when clustering and reconstruction are performed at the same level, and (2) the problem of Feature Drift is more pronounced for GAE models, compared with vanilla auto-encoder models, due to the graph convolutional operation and the graph decoding design.

Clustering Graph Clustering +1

Deep Clustering with a Dynamic Autoencoder: From Reconstruction towards Centroids Construction

1 code implementation23 Jan 2019 Nairouz Mrabah, Naimul Mefraz Khan, Riadh Ksantini, Zied Lachiri

In unsupervised learning, there is no apparent straightforward cost function that can capture the significant factors of variations and similarities.

Clustering Deep Clustering +1

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