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 Results for DC.creator="A." AND DC.creator="Podjarny" in section 16.3.5 of volume F
Cluster analysis
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5.5, p. 441 [ doi:10.1107/97809553602060000852 ]
... 1990, 1995; Buehler et al., 2009). Cluster analysis is a branch of applied mathematics aimed at classifying a set of points in a multidimensional space into several compact groups called clusters (or ...

Phase averaging and assignment of the probability distribution
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5.4, pp. 440-441 [ doi:10.1107/97809553602060000852 ]
... with [theta] = [varphi]best, I1(T)/I0(T) = m, or a bimodal distribution,(Hendrickson & Lattman, 1970). These distributions may be ... phases at the next cycle of phasing. References Hendrickson, W. A. & Lattman, E. E. (1970). Representation of phase probability distributions ...

Multiple alignment and `central' phase set
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5.3, p. 440 [ doi:10.1107/97809553602060000852 ]
... when applied to several phase sets simultaneously. The choice of a `central' point of reference seems to be a reasonable solution, provided it minimizes the dispersion of the phase sets. To do so, let be a `cloud' of selected phase sets considered as points in ...

Phase ambiguity and alignment of phase sets
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5.2, p. 440 [ doi:10.1107/97809553602060000852 ]
... added as an allowed operation in the alignment process. Finally, a density transformation [rho](r)-->-[rho](r) preserves the magnitudes, changes the phases by [pi] and flips the envelopes for a given cutoff level. In order to assess which of the ... molecular envelopes is more probable, [rho](r) or -[rho](r), a generalized maximum-likelihood technique can be used (Lunin et ...

Formal comparison of phase sets
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5.1, pp. 439-440 [ doi:10.1107/97809553602060000852 ]
... quantities has its own disadvantage. The first is influenced by a number of weak reflections with poor phases that do not ... On the other hand, C[varphi] is influenced mostly by a small number of very strong reflections and is not so ... in resolution shells are applied to attenuate these effects. If a collection of phase sets is considered as a cloud ...

Processing of the output
Lunin, V.Y., Urzhumtsev, A.G. and Podjarny, A.  International Tables for Crystallography (2012). Vol. F, Section 16.3.5, pp. 439-441 [ doi:10.1107/97809553602060000852 ]
... The output of the selection procedure may be presented as a two-dimensional table. In this table, each column represents one ... by the phase value in different selected phase sets. If a selected phase set is considered as a point in multidimensional configuration space of all phase sets, ...

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