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

Constructor

set radius

Set maximum radius

Set eta

Trait Implementations

Returns a copy of the value. Read more

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Deserialize this value from the given Serde deserializer. Read more

Serialize this value into the given Serde serializer. Read more

Name of the solver. Mainly used in Observers.

Initializes the algorithm. Read more

Computes a single iteration of the algorithm and has access to the optimization problem definition and the internal state of the solver. Returns an updated state and optionally a KV which holds key-value pairs used in Observers. Read more

Used to implement stopping criteria, in particular criteria which are not covered by (terminate_internal. Read more

Checks whether basic termination reasons apply. Read more

Auto Trait Implementations

Blanket Implementations

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Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

Checks if self is actually part of its subset T (and can be converted to it).

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The inclusion map: converts self to the equivalent element of its superset.

The resulting type after obtaining ownership.

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🔬 This is a nightly-only experimental API. (toowned_clone_into)

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The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.