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Complex multimedia data are at the heart of several modern applications , such as image/video retrieval and the comparison of collection of documents. Frequently, such complex data are modeled as hierarchical objects that consist of different components, like videos including shots, images including visually coherent regions, and so on. When such complex(More)
Several modem multimedia applications require the management of complex data, that can be defined as hierarchical objects consisting of several component elements. In such scenarios, the concept of similarity between complex objects clearly recursively depends on the similarity between component data, making difficult the resolution of several common tasks,(More)
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