Search Results for author: Islem Mhiri

Found 3 papers, 3 papers with code

StairwayGraphNet for Inter- and Intra-modality Multi-resolution Brain Graph Alignment and Synthesis

1 code implementation6 Oct 2021 Islem Mhiri, Mohamed Ali Mahjoub, Islem Rekik

Our SG-Net is grounded in three main contributions: (i) predicting a target graph from a source one based on a novel graph generative adversarial network in both inter (e. g., morphological-functional) and intra (e. g., functional-functional) domains, (ii) generating high-resolution brain graphs without resorting to the time consuming and expensive MRI processing steps, and (iii) enforcing the source distribution to match that of the ground truth graphs using an inter-modality aligner to relax the loss function to optimize.

Generative Adversarial Network Super-Resolution

Non-isomorphic Inter-modality Graph Alignment and Synthesis for Holistic Brain Mapping

1 code implementation30 Jun 2021 Islem Mhiri, Ahmed Nebli, Mohamed Ali Mahjoub, Islem Rekik

Our three core contributions lie in (i) predicting a target graph (e. g., functional) from a source graph (e. g., morphological) based on a novel graph generative adversarial network (gGAN); (ii) using non-isomorphic graphs for both source and target domains with a different number of nodes, edges and structure; and (iii) enforcing the predicted target distribution to match that of the ground truth graphs using a graph autoencoder to relax the designed loss oprimization.

Generative Adversarial Network Graph Generation

Supervised Multi-topology Network Cross-diffusion for Population-driven Brain Network Atlas Estimation

2 code implementations23 Sep 2020 Islem Mhiri, Mohamed Ali Mahjoub, Islem Rekik

Estimating a representative and discriminative brain network atlas (BNA) is a nascent research field in mapping a population of brain networks in health and disease.

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