This article covers a Bloomreach Experience Manager version 13. There's an updated version available that covers our most recent release.

07-01-2019

Trends Scores

Introduction

The Trends tab in the Audiences perspective includes a Top N list of peak performing categories. Each category is assigned a score of at most 5 stars. This page explains how the scores are computed.

How Scores are Computed

The number of stars for an item is computed in the following way: let f (foreground) be the frequency of the item in the selection. For example, in the screenshot above, 'energy' has f=0.38. Let b (background) be the frequency of the item in the full population, for example, 'energy' has b=0.09. The 'score' for item 'energy' is then set to s=(f-b)(f/b).

There are two ways to get a high score:

  1. An item which increases from 4% to 8% benefits primarily from the f/b term.
  2. An item which increases from 50% to 60% benefits primarily from the f-b term.

In principle, the scores can be arbitrarily large. The number of stars shown in the Score column is defined as stars = floor(6s/(|s|+c)) with c=0.1 chosen empirically.

Note: the word Score is used here in a different sense than in the documentation about scoring and normalization of segment scores.
Did you find this page helpful?
How could this documentation serve you better?
On this page
    Did you find this page helpful?
    How could this documentation serve you better?

    We rely on cookies

    to optimize our communication and to enhance your customer experience. By clicking on the Accept and Close button, you agree to the collection of cookies. You can also adjust your preferences by clicking on Manage Preferences. For more information please see our Privacy policy.

    Manage cookies
    Accept & close

    Cookies preferences

    Accept & close
    Back