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Rating is based on the positions of the first 100 thousand pictures (top100k) of category Vectors on Shutterstock. Rating of vector (place in the top) is determined by Shutterstock. (Now the algorithm more complicated, but the principle remains the same.) Depending on the position the picture gets a rank (weight). The sum of ratings of all images in a portfolio of top100k forms the rating of the portfolio (it is divided by 100 to increase readability).
This approach gives several advantages to the portfolios with a large number of images over the portfolios that have only a few papers on the first pages. In our point of view, this is right: a diverse portfolio, based on the marketability of many works is more sustainable and stable than one with a couple of hits.
However, it should be mentioned that the positions of the images in top100k cannot be reflected only by their sales. We came to the conclusion that in the sorting top100k the age of the images and the dynamics of sales is also taking into the account. For example, recent picture with gradually increasing sales will surpass the older one, in which the number of sales is much more, but the sales gradually decrease. And, consequently, a fresh portfolio with growing sales will overtake by rating old one with well-deserved hits.
We can say that the rating conveys not only (or even mainly) the current status of sales, but the trend. Rating can be a good tool for comparative analysis of portfolios and evaluation efforts of the authors.
 +99998 per week |  +99997 per week |  +64 per week |  +401 per week |  +99986 per week |  +76 per week |
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