[−][src]Struct argmin::solver::landweber::Landweber
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)
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
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Trait Implementations
impl Clone for Landweber
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fn clone(&self) -> Landweber
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl<O> Solver<O> for Landweber where
O: ArgminOp,
O::Param: ArgminScaledSub<O::Param, f64, O::Param>,
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O: ArgminOp,
O::Param: ArgminScaledSub<O::Param, f64, O::Param>,
const NAME: &'static str
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fn next_iter(
&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<ArgminIterData<O>, Error>
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&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<ArgminIterData<O>, Error>
fn init(
&mut self,
_op: &mut OpWrapper<O>,
_state: &IterState<O>
) -> Result<Option<ArgminIterData<O>>, Error>
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&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
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Checks whether basic termination reasons apply. Read more
fn terminate(&mut self, _state: &IterState<O>) -> TerminationReason
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Checks whether the algorithm must be terminated
impl<'de> Deserialize<'de> for Landweber
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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
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__D: Deserializer<'de>,
impl Serialize for Landweber
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Auto Trait Implementations
impl Send for Landweber
impl Unpin for Landweber
impl Sync for Landweber
impl UnwindSafe for Landweber
impl RefUnwindSafe for Landweber
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> DeserializeOwned for T where
T: Deserialize<'de>,
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T: Deserialize<'de>,
impl<T> SendSyncUnwindSafe for T where
T: Send + Sync + UnwindSafe + ?Sized,
T: Send + Sync + UnwindSafe + ?Sized,