Directed networks allow us to solve flow problems. Flow problems involve moving units through a directed graph from a source to a sink, where the movement constrained by the capacities of the edges.

To create a directed graph in Python for solving problems on LeetCode, you typically represent the graph using data structures such as adjacency lists.

Abstract In directed graphs, relationships are asymmetric and these asymmetries contain essential structural information about the graph. Directed relationships lead to a new type of clustering that ...

The boost of signal processing on graph has recently solicited research on the problem of identifying (learning) the graph underlying the observed signal values according to given criteria, such as ...

Error in graph.adjacency.dense (adjmatrix, mode = mode, weighted = weighted, : At vendor/cigraph/src/constructors/adjacency.c:535 : Adjacency matrix should be symmetric to produce an undirected graph.

Transformer models have shown great versatility in modalities, such as images, audio, video, and undirected graphs, but transformers for directed graphs still lack attention. To address this gap, a ...

To maximize the homogeneity of these two distinct graphs, we design an improved semi-supervised contrastive loss. In order to enrich scarce label information, we propose a self-supervised mechanism to ...