Assume you are a developer for a fancy travel platform and just implemented and ...
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Assume you are a developer for a fancy travel platform and just implemented and deployed a new hotel recommender system. It is configured to recommend 5 hotels per user based on their travel style. Your catalog is composed of 500 hotels to which the recommender system has access.
For your first (and only) two users of the system, the lists of recommended items are given below.
| u1 | u2 | |
| i1 | Domus Antea | Gianicolo Apartments |
| i2 | Relais Circo Massimo | Hotel Del Mare |
| i3 | Suite Palazzo Bonaventura | Relais Circo Massimo |
| i4 | Guest House Les Nobles | Hotel Artemis |
| i5 | Hotel Artemis | Casa Malupa |
What is the item coverage of your recommender? Provide your numeric answer in [0,1].