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GraphAdjacencyMatrix

god_gragh::tensor::graph_tensor

Struct GraphAdjacencyMatrix 

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pub struct GraphAdjacencyMatrix {
    pub num_nodes: usize,
    pub num_edges: usize,
    pub is_directed: bool,
    /* private fields */
}
Expand description

Adjacency matrix representation for graph neural networks

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§num_nodes: usize

Number of nodes

§num_edges: usize

Number of edges

§is_directed: bool

Whether the graph is directed

Implementations§

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impl GraphAdjacencyMatrix

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pub fn from_edge_list( edges: &[(usize, usize)], num_nodes: usize, is_directed: bool, ) -> Result<Self, TensorError>

Create adjacency matrix from edge list

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pub fn to_coo(&self) -> COOTensor

Convert to COO format

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pub fn as_sparse_tensor(&self) -> &CSRTensor

Get sparse tensor representation

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pub fn normalized_with_self_loops(&self) -> Result<Self, TensorError>

Compute normalized adjacency matrix (for GCN)

Returns: D^(-1/2) * (A + I) * D^(-1/2) where D is the degree matrix and I is the identity matrix

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pub fn degree_matrix(&self) -> DenseTensor

Compute degree matrix

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pub fn inverse_degree_matrix(&self) -> DenseTensor

Compute inverse degree matrix (for normalization)

Trait Implementations§

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impl Clone for GraphAdjacencyMatrix

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fn clone(&self) -> GraphAdjacencyMatrix

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for GraphAdjacencyMatrix

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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