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LMCKernel

Struct LMCKernel 

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pub struct LMCKernel { /* private fields */ }
Expand description

Linear Model of Coregionalization (LMC) kernel.

K((x, i), (y, j)) = Σ_q B_q[i, j] * k_q(x, y)

where:

  • Each (B_q, k_q) pair represents a latent process
  • B_q is a task covariance matrix
  • k_q is a kernel function

LMC is more expressive than ICM as it allows different kernels to capture different aspects of task relationships.

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impl LMCKernel

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pub fn new(num_tasks: usize) -> Self

Create a new LMC kernel.

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pub fn add_component( &mut self, kernel: Box<dyn Kernel>, task_covariance: Vec<Vec<f64>>, ) -> Result<()>

Add a latent process component.

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pub fn compute_tasks(&self, x: &TaskInput, y: &TaskInput) -> Result<f64>

Compute LMC kernel value for task inputs.

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pub fn num_components(&self) -> usize

Get number of components.

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pub fn num_tasks(&self) -> usize

Get number of tasks.

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pub fn compute_task_matrix(&self, inputs: &[TaskInput]) -> Result<Vec<Vec<f64>>>

Compute full kernel matrix for multiple task inputs.

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