US11354682B2
патент
(57) claimer . Embodiments of a system method and computer program product for selecting an advertisement and presenting it to a user are described . Products and services offered by various merchants are read using a merchant specific catalog and stored in a common format. Categories for such products and services are normalized and virtual categories are cre ated using various product attributes . Visual creatives, termed as ad -templates are created to control the visual and interactive aspects of the ad , including ad- size , color, as well as product attributes that are displayed in the ad . Ad templates may be constrained to specific products or product categories. A learning algorithm uses an adaptive sampling process to sample various products, product categories and ad - templates independently for different learning units such as individual users, groups of users determined by some demographics , individual web pages and groups of web pages grouped using various similarity criteria . The perfor mance of the ad is measured using various learning statistics ,
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