Struct argmin::solver::trustregion::trustregion_method::TrustRegion
source · [−]pub struct TrustRegion<R, F> { /* private fields */ }
Expand description
The trust region method approximates the cost function within a certain region around the current point in parameter space. Depending on the quality of this approximation, the region is either expanded or contracted.
The calculation of the actual step length and direction is done by one of the following methods:
This subproblem can be set via set_subproblem(...)
. If this is not provided, it will default
to the Steihaug method.
References:
[0] Jorge Nocedal and Stephen J. Wright (2006). Numerical Optimization. Springer. ISBN 0-387-30303-0.
Implementations
sourceimpl<R, F: ArgminFloat> TrustRegion<R, F>
impl<R, F: ArgminFloat> TrustRegion<R, F>
Trait Implementations
sourceimpl<R: Clone, F: Clone> Clone for TrustRegion<R, F>
impl<R: Clone, F: Clone> Clone for TrustRegion<R, F>
sourcefn clone(&self) -> TrustRegion<R, F>
fn clone(&self) -> TrustRegion<R, F>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl<'de, R, F> Deserialize<'de> for TrustRegion<R, F> where
R: Deserialize<'de>,
F: Deserialize<'de>,
impl<'de, R, F> Deserialize<'de> for TrustRegion<R, F> where
R: Deserialize<'de>,
F: Deserialize<'de>,
sourcefn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl<R, F> Serialize for TrustRegion<R, F> where
R: Serialize,
F: Serialize,
impl<R, F> Serialize for TrustRegion<R, F> where
R: Serialize,
F: Serialize,
sourceimpl<O, R, F> Solver<O> for TrustRegion<R, F> where
O: ArgminOp<Output = F, Float = F>,
O::Param: Clone + Debug + Serialize + ArgminMul<F, O::Param> + ArgminWeightedDot<O::Param, F, O::Hessian> + ArgminNorm<F> + ArgminDot<O::Param, F> + ArgminAdd<O::Param, O::Param> + ArgminSub<O::Param, O::Param> + ArgminZeroLike,
O::Hessian: Clone + Debug + Serialize + ArgminDot<O::Param, O::Param>,
R: ArgminTrustRegion<F> + Solver<O>,
F: ArgminFloat,
impl<O, R, F> Solver<O> for TrustRegion<R, F> where
O: ArgminOp<Output = F, Float = F>,
O::Param: Clone + Debug + Serialize + ArgminMul<F, O::Param> + ArgminWeightedDot<O::Param, F, O::Hessian> + ArgminNorm<F> + ArgminDot<O::Param, F> + ArgminAdd<O::Param, O::Param> + ArgminSub<O::Param, O::Param> + ArgminZeroLike,
O::Hessian: Clone + Debug + Serialize + ArgminDot<O::Param, O::Param>,
R: ArgminTrustRegion<F> + Solver<O>,
F: ArgminFloat,
sourcefn init(
&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<Option<ArgminIterData<O>>, Error>
fn init(
&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<Option<ArgminIterData<O>>, Error>
Initializes the algorithm Read more
sourcefn next_iter(
&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<ArgminIterData<O>, Error>
fn next_iter(
&mut self,
op: &mut OpWrapper<O>,
state: &IterState<O>
) -> Result<ArgminIterData<O>, Error>
Computes one iteration of the algorithm.
sourcefn terminate(&mut self, _state: &IterState<O>) -> TerminationReason
fn terminate(&mut self, _state: &IterState<O>) -> TerminationReason
Checks whether the algorithm must be terminated
sourcefn terminate_internal(&mut self, state: &IterState<O>) -> TerminationReason
fn terminate_internal(&mut self, state: &IterState<O>) -> TerminationReason
Checks whether basic termination reasons apply. Read more
Auto Trait Implementations
impl<R, F> RefUnwindSafe for TrustRegion<R, F> where
F: RefUnwindSafe,
R: RefUnwindSafe,
impl<R, F> Send for TrustRegion<R, F> where
F: Send,
R: Send,
impl<R, F> Sync for TrustRegion<R, F> where
F: Sync,
R: Sync,
impl<R, F> Unpin for TrustRegion<R, F> where
F: Unpin,
R: Unpin,
impl<R, F> UnwindSafe for TrustRegion<R, F> where
F: UnwindSafe,
R: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more