Reverse k-Ranks Query

Provided by: VLD Digital
Topic: Big Data
Format: PDF
Finding matching customers for a given product based on individual user's preference are critical for many applications, especially in e-commerce. Recently, the reverse top-k query is proposed to return a number of customers who regard a given product as one of the k most favorite products based on a linear model. Although a few \"Hot\" products can be returned to some customers via reverse top-k query, a large proportion of products (over 90%, as the authors' example illustrates) cannot find any matching customers.

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