Question of index ARTIMX on this site

[Nedogonov]

Hello! I would be very grateful to the knowledgeable people who could clarify for me the question of art-indexes on this site.

Nowhere were unable to find an algorithm for calculating them.

Maybe it's a trade secret? However, no algorithm is available for discussion and verification, price them, it seems, is close to zero.

In the limit, any "slogger" can come up with its index, calculated on the wind rose for example, and start promoting it to the Internet ...
  
If I'm not mistaken, the index ArtpPice and ArtTactic obtained by the mass (or at least representative) survey. If any of tutoshnih specialists will find the time to answer - thanks:)