Search Results for author: Lisi Qarkaxhija

Found 2 papers, 0 papers with code

De Bruijn goes Neural: Causality-Aware Graph Neural Networks for Time Series Data on Dynamic Graphs

no code implementations17 Sep 2022 Lisi Qarkaxhija, Vincenzo Perri, Ingo Scholtes

Our architecture builds on multiple layers of higher-order De Bruijn graphs, an iterative line graph construction where nodes in a De Bruijn graph of order k represent walks of length k-1, while edges represent walks of length k. We develop a graph neural network architecture that utilizes De Bruijn graphs to implement a message passing scheme that follows a non-Markovian dynamics, which enables us to learn patterns in the causal topology of a dynamic graph.

graph construction Model Selection +3

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