| 摘要 |
A method of classifying a set of content items, each content item including at least one signal (11) for rendering in perceptible form on a presentation system (1,2) of content items, includes obtaining an at least one-dimensional feature vector for each content item comprised in the set, at least one co-ordinate of the feature vector comprising a parameter value characterizing the content item. The method also includes providing at least one query to a system (14-17) configured to collect information descriptive of content items, each query including at least one of data identifying a content item of the set and data identifying an attribute common to the content items in the set, using results of each provided query to determine a sub-set of the set of content items, and classifying at least one content item in the set according to a measure of similarity between its feature vector and feature vectors obtained for content items in the sub-set. |
