WeightedSampler

saorsa_core::placement::algorithms

Struct WeightedSampler 

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

Efraimidis-Spirakis weighted sampling algorithm implementation

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impl WeightedSampler

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pub fn new() -> Self

Create new weighted sampler

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pub fn calculate_weight( &self, node_id: &NodeId, trust_score: f64, stability_score: f64, capacity_factor: f64, diversity_factor: f64, alpha: f64, beta: f64, gamma: f64, ) -> PlacementResult<f64>

Calculate composite weight for a node Formula: w_i = (τ_i^α) * (p_i^β) * (c_i^γ) * d_i Where:

  • τ_i: EigenTrust score
  • p_i: Predicted stability (churn resistance)
  • c_i: Capacity factor
  • d_i: Diversity factor
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pub fn sample_nodes( &mut self, candidates: &[(NodeId, f64)], k: usize, ) -> PlacementResult<Vec<NodeId>>

Sample k nodes using Efraimidis-Spirakis algorithm

Trait Implementations§

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impl Clone for WeightedSampler

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fn clone(&self) -> WeightedSampler

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 WeightedSampler

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

Formats the value using the given formatter. Read more
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impl Default for WeightedSampler

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fn default() -> Self

Returns the “default value” for a type. Read more

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