Supports

• Beyond accuracy - evaluating recommender systems by coverage and serendipityBeyond accuracy - evaluating recommender systems by coverage and serendipity
  1. Coverage
  
  The coverage of a recommender is a measure of the domain of items over which the system can make recommendations
  2 concepts
  
  The percentage of the items for which the sys...
  • Coverage
    • Prediction Coverage
    • Catalogue Coverage
• Effective Catalog SizeEffective Catalog Size
  A metric that describes how spread viewing is across the items in our catalog. If most viewing comes from a single item, it will be close to 1. If all items generate the same amount of viewing, it ...

#recommender-system #recommender-system/quality #recommender-system/coverage