preconditioning
- noun
- /ˌpriːkənˈdɪʃənɪŋ/
- Specialized
- Although it is possible to use different orderings for preconditioning and matrix-vector multiplication, doing so requires permuting a vector twice in every iteration.
Examples
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Applying preconditioning to the algorithm improved its overall efficiency in solving complex equations.
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Instead of doing that, what you'll do is use CG or PCG precondition CG to approximately solve the Newton system.
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It is a fast algorithm and has benefits in preconditioning as well, as explained in Section 6.
Academic text (1997) -
The researcher applied a preconditioning technique to the mathematical model to enhance its convergence speed during simulations.
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By utilizing preconditioning, the team was able to stabilize the iterative computations and reduce error rates significantly.
How Fast
- Specialized
- Specialized
Surface Forms
Morphology
preconditioning = precondition (semi-transparent) = pre + condition + ing
The immediate base 'precondition' is transparently built from 'pre-' + 'condition', but the specific computational meaning is specialized and may not be fully inferable by average learners.
Etymology
Preconditioning comes from the small part pre- ('before') and the verb condition ('prepare' or 'make ready'). So in computing it means you change a problem beforehand to make the solver work faster and more reliably.