scirs2_graph::gnn::transformers::temporal_gnn

Struct MemoryModule

pub struct MemoryModule {
    pub memory: Array2<f64>,
    pub last_update: Vec<f64>,
    pub memory_dim: usize,
    pub time_dim: usize,
    pub n_nodes: usize,
    pub update_method: MemoryUpdateMethod,
    pub time_encoding: TimeEncoding,
    pub message_dim: usize,
    /* private fields */
}

Expand description

TGN-style memory module that maintains compressed node interaction history.

Each node has a memory vector that is updated when new events arrive. The memory captures temporal patterns and interaction history.

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§memory: Array2<f64>

Node memory states: [n_nodes, memory_dim]

§last_update: Vec<f64>

Last update timestamp per node

§memory_dim: usize

Memory dimension

§time_dim: usize

Time encoding dimension

§n_nodes: usize

Number of nodes

§update_method: MemoryUpdateMethod

Memory update method

§time_encoding: TimeEncoding

Time encoding module

§message_dim: usize

Message dimension (memory_dim + memory_dim + time_dim + optional features)

Implementations§

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impl MemoryModule

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pub fn new( n_nodes: usize, memory_dim: usize, time_dim: usize, update_method: MemoryUpdateMethod, ) -> Self

Create a new memory module.

§Arguments

n_nodes - Number of nodes in the graph
memory_dim - Dimension of node memory vectors
time_dim - Dimension for time encoding
update_method - Memory update method (GRU or MLP)

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pub fn process_event(&mut self, event: &TemporalEvent) -> Result<()>

Process a single temporal event and update node memories.

Updates the memory of both source and target nodes involved in the event.

§Arguments

event - The temporal interaction event

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pub fn process_events(&mut self, events: &[TemporalEvent]) -> Result<()>

Process a batch of temporal events in chronological order.

Events should be sorted by timestamp (ascending).

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pub fn get_memory(&self) -> &Array2<f64>

Get the current memory state for all nodes.

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pub fn reset(&mut self)

Reset all node memories to zero.

Trait Implementations§

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impl Clone for MemoryModule

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fn clone(&self) -> MemoryModule

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 MemoryModule

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for MemoryModule

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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