[][src]Struct argmin::solver::landweber::Landweber

pub struct Landweber { /* fields omitted */ }

The Landweber iteration is a solver for ill-posed linear inverse problems.

In iteration k, the new parameter vector x_{k+1} is calculated from the previous parameter vector x_k and the gradient at x_k according to the following update rule:

x_{k+1} = x_k - omega * \nabla f(x_k)

Example

References

[0] Landweber, L. (1951): An iteration formula for Fredholm integral equations of the first kind. Amer. J. Math. 73, 615–624 [1] https://en.wikipedia.org/wiki/Landweber_iteration

Methods

impl Landweber[src]

pub fn new(omega: f64) -> Self[src]

Constructor

Trait Implementations

impl Clone for Landweber[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl<O> Solver<O> for Landweber where
    O: ArgminOp,
    O::Param: ArgminScaledSub<O::Param, f64, O::Param>, 
[src]

fn init(
    &mut self,
    _op: &mut OpWrapper<O>,
    _state: &IterState<O>
) -> Result<Option<ArgminIterData<O>>, Error>

Initializes the algorithm Read more

fn terminate_internal(&mut self, state: &IterState<O>) -> TerminationReason

Checks whether basic termination reasons apply. Read more

fn terminate(&mut self, _state: &IterState<O>) -> TerminationReason

Checks whether the algorithm must be terminated

impl Serialize for Landweber[src]

impl<'de> Deserialize<'de> for Landweber[src]

Auto Trait Implementations

impl Send for Landweber

impl Sync for Landweber

Blanket Implementations

impl<T> From for T[src]

impl<T, U> Into for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

impl<T, U> TryFrom for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> BorrowMut for T where
    T: ?Sized
[src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> DeserializeOwned for T where
    T: Deserialize<'de>, 
[src]

impl<T> SendSyncUnwindSafe for T where
    T: Send + Sync + UnwindSafe + ?Sized