Trait argmin::ArgminSolver

pub trait ArgminSolver<'a> {
    type Parameter: ArgminParameter;
    type CostValue: ArgminCostValue;
    type Hessian;
    type StartingPoints;
    type ProblemDefinition;
    fn init(
        &mut self, 
        _: &'a Self::ProblemDefinition, 
        _: &Self::StartingPoints
    ) -> Result<(), Error>;
    fn next_iter(
        &mut self
    ) -> Result<ArgminResult<Self::Parameter, Self::CostValue>, Error>;
    fn run(
        &mut self, 
        _: &'a Self::ProblemDefinition, 
        _: &Self::StartingPoints
    ) -> Result<ArgminResult<Self::Parameter, Self::CostValue>, Error>;
    fn terminate(&self) -> bool;
}

Trait every solve needs to implement (in the future)

Associated Types

type Parameter: ArgminParameter

Parameter vector

type CostValue: ArgminCostValue

Cost value

type Hessian

Hessian

type StartingPoints

Initial parameter(s)

type ProblemDefinition

Type of Problem (TODO: Trait!)

Required Methods

fn init(
    &mut self,
    _: &'a Self::ProblemDefinition,
    _: &Self::StartingPoints
) -> Result<(), Error>

Initializes the solver and sets the state to its initial state

fn next_iter(
    &mut self
) -> Result<ArgminResult<Self::Parameter, Self::CostValue>, Error>

Moves forward by a single iteration

fn run(
    &mut self,
    _: &'a Self::ProblemDefinition,
    _: &Self::StartingPoints
) -> Result<ArgminResult<Self::Parameter, Self::CostValue>, Error>

Run initialization and iterations at once

fn terminate(&self) -> bool

Handles the stopping criteria

Implementors

• impl<'a, T, U, V> ArgminSolver<'a> for SimulatedAnnealing<'a, T, U, V> where
    T: ArgminParameter + 'a,
    U: ArgminCostValue + 'a,
    V: 'a,  type Parameter = T; type CostValue = U; type Hessian = V; type StartingPoints = T; type ProblemDefinition = ArgminProblem<'a, Self::Parameter, Self::CostValue, Self::Hessian>;
• impl<'a> ArgminSolver<'a> for GradientDescent<'a> type Parameter = Array1<f64>; type CostValue = f64; type Hessian = Array1<f64>; type StartingPoints = Array1<f64>; type ProblemDefinition = ArgminProblem<'a, Self::Parameter, Self::CostValue, Self::Hessian>;
• impl<'a> ArgminSolver<'a> for NelderMead<'a> type Parameter = Vec<f64>; type CostValue = f64; type Hessian = Vec<f64>; type StartingPoints = Vec<Self::Parameter>; type ProblemDefinition = ArgminProblem<'a, Self::Parameter, Self::CostValue, Self::Hessian>;
• impl<'a> ArgminSolver<'a> for Newton<'a> type Parameter = Array1<f64>; type CostValue = f64; type Hessian = Array2<f64>; type StartingPoints = Self::Parameter; type ProblemDefinition = ArgminProblem<'a, Self::Parameter, Self::CostValue, Self::Hessian>;
• impl<'a> ArgminSolver<'a> for Landweber<'a> type Parameter = Array1<f64>; type CostValue = f64; type Hessian = Array2<f64>; type StartingPoints = Self::Parameter; type ProblemDefinition = ArgminOperator<'a>;
• impl<'a> ArgminSolver<'a> for ConjugateGradient<'a> type Parameter = Array1<f64>; type CostValue = f64; type Hessian = Array2<f64>; type StartingPoints = Self::Parameter; type ProblemDefinition = ArgminOperator<'a>;