A fast Newton algorithm for entropy maximization in phase determination (Q2780622)
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scientific article; zbMATH DE number 1729232
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A fast Newton algorithm for entropy maximization in phase determination |
scientific article; zbMATH DE number 1729232 |
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15 April 2002
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X-ray crystallography
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protein structure determination
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entropy maximization
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Newton's method
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Fourier transform
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convolution
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numerical examples
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algorithm
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0.9641432
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0.8423331
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0.83891726
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0.83819675
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0.83229274
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0.8322224
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0.8302086
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0.8294506
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A fast Newton algorithm for entropy maximization in phase determination (English)
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The authors study the entropy maximization problem in the Bayesian statistical approach to the phase problem of X-ray crystallography. The entropy maximization problem is a semi-infinite convex program and can be solved in a finite dual space by using a standard Newton method. This Newton method is too expensive for this application. Therefore, a fast Newton algorithm is presented. Computational results are given.
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