英语翻译In this case,therecommender system accumulates user rati

英语翻译
In this case,the
recommender system accumulates user ratings of items,
identifies users with common ratings,and offers
recommendations based on inter-user comparison.As such,
the CF recommender compares researchers’ ratings of
resources,and tries to determine the rating the researcher will
give to the current resource,determining whether the resource
will satisfy the researcher or not.The CF process is composed
of two steps:first determine the neighborhood of the
researcher,which consists of k researchers with the highest
ratings’ similarity.The similarity between the researcher a and
his neighbor u is derived using Pearson correlation coefficient
highlighted in the following equation: