Optimisation in radiotherapy. III: Stochastic optimisation algorithms and conclusions

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Abstract

This is the final article in a three part examination of optimisation in radiotherapy. Previous articles have established the bases and form of the radiotherapy optimisation problem, and examined certain types of optimisation algorithm, namely, those which perform some form of ordered search of the solution space (mathematical programming), and those which attempt to find the closest feasible solution to the inverse planning problem (deterministic inversion). The current paper examines algorithms which search the space of possible irradiation strategies by stochastic methods. The resulting iterative search methods move about the solution space by sampling random variates, which gradually become more constricted as the algorithm converges upon the optimal solution. This paper also discusses the implementation of optimisation in radiotherapy practice.
Original languageEnglish
Pages (from-to)231-241
Number of pages11
JournalAustralasian Physical & Engineering Sciences In Medicine
Volume20
Issue number4
Publication statusPublished - 1997
Externally publishedYes

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