Wladzislaw, ratings are generated automatically by a particular algorithm based on the investment indexes of artists after the calculation of statistics for the entire database of Russian artists. To remove an artist from the rating, it should be removed from the database, but do not want to. I do not want to "twisted" one way or another algorithm to bring it into conformity with one's wishes.
However, these ratings are good and that they do not have any human factor and excluded those or other personal preferences. Pure mathematics - nothing more. But with their help, you can check their own feelings in regard to the investment attractiveness of a particular artist in comparison with others. The only disadvantage of a purely mathematical approach that mathematics is not available (or almost available) qualitative assessment of a particular artist's work. Accordingly, the indexing and ranking with the same weight are counted as strong (expensive) and weak (less expensive) work of artists. On the other hand, this approach allows to identify, so to speak, "averaged" the investment attractiveness of the artist, designed for his work as a whole.
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