Each type of system has its own strengths and weaknesses.
Most traditional and common methods of image retrieval utilize some method of adding metadata such as captioning, keywords, or descriptions to the images so that retrieval can be performed over the annotation words.
These approaches are often combined (see Hybrid Recommender Systems).
The differences between collaborative and content-based filtering can be demonstrated by comparing two popular music recommender systems – and Pandora Radio.
automotive, wireless, telecom and multimedia applications. The organisation of user group meetings, fringe meetings, a university booth, a Ph D forum, vendor presentations and social events offers a wide variety of extra opportunities to meet and exchange information on relevant issues for the design and test community.
Special space will also be allocated for EU-funded projects to show their results.