| 摘要 |
The method involves, for each elementary subset which does not have the minimum dimension, an iteration of a sequence of steps having a division suitability estimation step during which a suitability for division of the elementary subset is estimated. The suitability estimate does not meet predetermined so-called "quality" criteria, a step of "supplementary partitioning" of the subset into so-called "intermediate" elementary subsets (Ki). A "construction" step in which, for each elementary subset resulting from the last partitioning step, n working subsets (Li) are considered, n being non-zero, and an elementary mapping of the n working subsets in the elementary subset under consideration is constructed by determining the parameters (ai, b) of the elementary mapping so as to make contractive a so-called "first type" global mapping. For the set of data, the global mapping belongs to the group of mappings composed of multidimensional mappings and non-linear mappings. The restrictions of the global mapping to the elementary subsets being composed of the elementary mappings. The fixed point of the global mapping constitutes an approximation of all or part of this set, allow the use of a method of successive approximations (407-410) converging towards the fixed point of the global contractive mapping. The set of parameters determined, and, when a supplementary partitioning step has taken place, so-called "partitioning" information, representing each the supplementary partitioning, jointly constitutes a primary representation of the set of data.
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