Аннотация
Recommender systems provide personalized suggestions about items that
users will find interesting. Typically, recommender systems require
a user interface that can "intelligently " determine the interest
of a user and use this information to make suggestions. The common
solution, "explicit ratings", where users tell the system what they
think about a piece of information, is well-understood and fairly
precise. However, having to stop to enter explicit ratings can alter
normal patterns of browsing and reading. A more "intelligent" method
is to use implicit ratings, where a rating is obtained by a method
other than obtaining it directly from the user. These implicit interest
indicators have obvious advantages, including removing the cost of
the user rating, and that every user interaction with the system
can contribute to an implicit rating. Current recommender systems
mostly do not use implicit ratings, nor is the ability of implicit
ratings to predict actual user interest well-unders...
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