Visualization of (multimedia) dependencies from big data

Data dependencies represent one of the key metadata to characterize and profile multimedia and big data sources. With respect to traditional databases, in these new contexts it has been necessary to introduce some approximations in the definition of dependencies. This yields a proliferation of dependencies, which makes it difficult for a user to effectively analyze them. To this end, in this paper we present a technique for ranking and visualizing dependencies holding on big and multimedia data. A qualitative evaluation has highlighted the advantages of the proposed visualization metaphors.