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In this paper, a knowledge representation infrastructure for semantic multimedia content analysis and reasoning is presented. This is one of the major objectives of the aceMedia Integrated Project where ontolo-gies are being extended and enriched to include low-level audiovisual features, descriptors and behavioural models in order to support automatic(More)
Annotations of multimedia documents typically have been pursued in two different directions. Either previous approaches have focused on low level descriptors, such as dominant color, or they have focused on the content dimension and corresponding annotations, such as person or vehicle. In this paper , we present a software environment to bridge between the(More)
In this paper we discuss the use of knowledge for the automatic extraction of semantic metadata from multimedia content. For the representation of knowledge we extended and enriched current general-purpose ontologies to include low-level visual features. More specifically, we implemented a tool that links MPEG-7 visual descriptors to high-level,(More)
Annotations of multimedia documents typically have been pursued in two different directions. Either previous approaches have fo-cused on low level descriptors, such as dominant color, or they have focused on the content dimension and corresponding annotations, such as person or vehicle. In this paper, we present a software environment to bridge between the(More)
Knowledge representation and annotation of multimedia documents typically have been pursued in two different directions. Previous approaches have focused either on low level descriptors, such as dominant color, or on the semantic content dimension and corresponding manual annotations, such as person or vehicle. In this paper, we present a knowledge(More)
Preface Knowledge representation and use has been a central concern for computer vision since decades. This topic becomes even more important as it is now possible to augment the reality thru real-time computer graphics in combination with real-time computer vision. As both disciplines need to cooperate, they also need to agree on common representation(More)
In this paper a novel electronic payment protocol suitable for " peer-to-peer " (P2P) networks is presented. It implements electronic cash-based transactions, between buyers and merchants. It is based on a bank account, though it can be easily extended and can be readily applied to other account payment models like debit cards. The proposed protocol is(More)
Knowledge representation and annotation of multimedia documents typically have been pursued in two different directions. Previous approaches have focused either on low level descriptors, such as dominant color, or on the content dimension and corresponding manual annotations, such as person or vehicle. In this paper, we present a knowledge infrastructure to(More)
A measurement of the ratio of the branching fractions of the B(+) → K(+)μ(+)μ(-) and B(+) → K(+)e(+)e(-) decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb(-1), recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton(More)