caa a22 4500 605447594 CHVBK 20210128100132.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s11042-013-1794-0 doi (NATIONALLICENCE)springer-10.1007/s11042-013-1794-0 EnContRA: a generic multimedia information retrieval meta-framework [Elektronische Daten] [Ricardo Dias, Manuel Fonseca, Nelson Silva, Tiago Cardoso] Over the last years, multimedia collections have largely increased as new items are produced every day, such as pictures, audio/music or video. In Multimedia Information Retrieval, this exponential growth leads content-based approaches to gain advantage over other solutions, not only because they take advantage of the intrinsic information contained in the objects, but also because they automatically process and extract it, reducing the burden taken by developers. Several domain specific frameworks have been developed to efficiently retrieve multimedia items empowering the creation of new content-based applications. However, these frameworks are attached to a specific media type, are too complex to be used in a fast prototyping environment, and are not very flexible nor extensible. To solve these issues, we developed EnContRA, an architectural meta-framework that provides generic building blocks for creating domain specific frameworks. Our meta-framework aims at being ready to be used for fast prototyping, with support for rich and multimodal queries, allowing validation of new descriptors, indexing structures or searching algorithms, while creating domain specific frameworks. In this paper we present the meta-framework architecture and describe in detail its modules and features. To validate the meta-framework, we created an image retrieval framework and a demo application that combines image descriptors with textual information, showing how the hierarchical design of EnContRA could be applied to a searching system and to empower the creation of queries. Springer Science+Business Media New York, 2013 Architectural meta-framework nationallicence Multimedia information retrieval nationallicence Query processing nationallicence Dias Ricardo Department of Information Systems and Computer Science, INESC-ID/IST/ULisboa, Lisbon, Portugal aut Fonseca Manuel Department of Information Systems and Computer Science, INESC-ID/IST/ULisboa, Lisbon, Portugal aut Silva Nelson inEvo R&D, Lda, Lisboa, Portugal aut Cardoso Tiago inEvo R&D, Lda, Lisboa, Portugal aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/11(2015-06-01), 3691-3713 1380-7501 74:11<3691 2015 74 11042 https://doi.org/10.1007/s11042-013-1794-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-013-1794-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dias Ricardo Department of Information Systems and Computer Science, INESC-ID/IST/ULisboa, Lisbon, Portugal aut NATIONALLICENCE 700 1- Fonseca Manuel Department of Information Systems and Computer Science, INESC-ID/IST/ULisboa, Lisbon, Portugal aut NATIONALLICENCE 700 1- Silva Nelson inEvo R&D, Lda, Lisboa, Portugal aut NATIONALLICENCE 700 1- Cardoso Tiago inEvo R&D, Lda, Lisboa, Portugal aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/11(2015-06-01), 3691-3713 1380-7501 74:11<3691 2015 74 11042