Struct FactorGraph 

pub struct FactorGraph { /* private fields */ }

Factor graph representation for PGM.

Implementations

impl FactorGraph

pub fn new() -> Self

Create a new empty factor graph.

pub fn add_variable(&mut self, name: String, domain: String)

Add a variable to the graph.

pub fn add_variable_with_card( &mut self, name: String, domain: String, cardinality: usize, )

Add a variable with specific cardinality.

pub fn add_factor(&mut self, factor: Factor) -> Result<()>

Add a factor to the graph.

pub fn add_factor_from_predicate( &mut self, name: &str, var_names: &[String], ) -> Result<()>

Add a factor from predicate name and variables.

pub fn get_variable(&self, name: &str) -> Option<&VariableNode>

Get variable node.

pub fn get_factor(&self, id: &str) -> Option<&Factor>

Get factor by ID.

pub fn get_factor_by_name(&self, name: &str) -> Option<&Factor>

Get factor by name.

pub fn get_adjacent_factors(&self, var: &str) -> Option<&Vec<String>>

Get factors connected to a variable.

pub fn get_adjacent_variables(&self, factor_id: &str) -> Option<&Vec<String>>

Get variables connected to a factor.

pub fn num_variables(&self) -> usize

Get number of variables.

pub fn num_factors(&self) -> usize

Get number of factors.

pub fn is_empty(&self) -> bool

Check if graph is empty.

pub fn variable_names(&self) -> impl Iterator<Item = &String>

Get all variable names.

pub fn factor_ids(&self) -> impl Iterator<Item = &String>

Get all factor IDs.

pub fn variables(&self) -> impl Iterator<Item = (&String, &VariableNode)>

Get all variables as an iterator.

pub fn factors(&self) -> impl Iterator<Item = &Factor>

Get all factors as an iterator.

pub fn get_all_factors(&self) -> Vec<&Factor>

Get all factors as a vector (for external use).

Trait Implementations

impl Clone for FactorGraph

fn clone(&self) -> FactorGraph

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FactorGraph

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

Formats the value using the given formatter.

impl Default for FactorGraph

fn default() -> Self

Returns the “default value” for a type.

impl QuantRSModelExport for FactorGraph

fn to_quantrs_model(&self) -> Result<ModelExport>

Export the model to a QuantRS-compatible format.

fn model_stats(&self) -> ModelStatistics

Get model statistics for QuantRS integration.

impl QuantumAnnealing for FactorGraph

fn to_qubo(&self) -> Result<QUBOProblem>

Convert the factor graph to a QUBO (Quadratic Unconstrained Binary Optimization) problem.

fn anneal(&self, config: &AnnealingConfig) -> Result<QuantumSolution>

Run quantum annealing to find the optimal assignment.

fn anneal_multiple( &self, config: &AnnealingConfig, num_runs: usize, ) -> Result<QuantumSolution>

Run multiple annealing runs and return the best solution.

impl QuantumInference for FactorGraph

fn solve_qaoa(&self, num_layers: usize) -> Result<HashMap<String, usize>>

Solve the optimization problem using QAOA (Quantum Approximate Optimization Algorithm).

fn quantum_marginals( &self, num_shots: usize, ) -> Result<HashMap<String, ArrayD<f64>>>

Compute marginal distributions using quantum sampling.

fn quantum_partition_function(&self) -> Result<f64>

Compute the partition function using quantum amplitude estimation.