News Recommendation in Real-Time - Smart Information Systems: Computational Intelligence for Real-Life Applications - page 158

Fig. 6.1 Integration overview. Visiting a news portal initiates a circular, event-driven sequence
of messages. Publishers pass the request for recommendations to the platform. Subsequently, the
platform issues the request to recommendation servers. These reply with lists of recommended
items. A bandit component blends these lists and forwards the resulting selection via platform and
publisher to the visitor
6.3.4 Graphical User Interface
ORP supports participants with a graphical user interface displaying their algorithms'
performances. We identify three performance affecting factors: impressions, clicks,
and click-through rate (CTR). ORP shows all of them on a daily basis. Impressions
Fig. 6.2 Illustration of the graphical user interface (GUI) of ORP. The header section offers a
sequence of tabs to access different sections. The figure shows the statistic section. ORP displays
trajectories of the number of requests, clicks, and their relation. Additionally, ORP provides a table
with absolute values for each variable