Topic
Multimedia database
About: Multimedia database is a research topic. Over the lifetime, 1404 publications have been published within this topic receiving 19856 citations. The topic is also known as: Multimedia database & MMDB.
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TL;DR: In this paper the advantages of multimedia GIS over traditional GIS are explained and future development of MMGIS (using new multimedia technologies such as Virtual Reality and Virtual Reality Modeling Language) is discussed.
Abstract: A geographical information system (GIS) is used to capture, store, retrieve, analyzed and display the spatial (locationally defined) data. In contrast to traditional GIS, multimedia GIS is not only able to collect, analyze and store the data in traditional formats i.e. text, images (pictures) and graphs but also audio (sound), animations and video (moving pictures) as well. In this paper the advantages of multimedia GIS over traditional GIS are explained. Multimedia GIS is fully capable of providing services to both technical and non-technical users and users of multimedia GIS can retain more knowledge than users of traditional GIS. It can be applied to various fields such as tourism, environment, education etc. Some implementation issues such as data updating, information retrieval and data compression etc. are also addressed. Finally, future development of MMGIS (using new multimedia technologies such as Virtual Reality and Virtual Reality Modeling Language) is discussed.
12 citations
03 Jun 1997
TL;DR: This paper describes the general concept of Reactive Playout Management (RPM) which provides an application-independent service for adaptive multimedia presentations and proposes the PYLOT scheme (PlaYout Load OpTimization scheme) to enable RPM in best-effort architectures.
Abstract: Multimedia database systems must accommodate the capability to adapt the resource demand of executing presentations. This concerns adaptations across components of presentations as well as across concurrent sessions adhering to the individual needs of content providers and viewers. This paper describes the general concept of Reactive Playout Management (RPM) which provides an application-independent service for adaptive multimedia presentations. Furthermore, it proposes the PYLOT scheme (PlaYout Load OpTimization scheme) to enable RPM in best-effort architectures. In particular the global resource allocation routine of PYLOT is elaborated which manipulates the load proportions such that minimal total adjustment costs and maximal total adjustment profit are achieved, respectively. This linear programming based optimization is demonstrated by experimental results.
12 citations
TL;DR: The architecture is based on a new object-oriented metamodel that has support for multimedia types and federated metadata and can determine precisely how data is structured and the types of operations that are possible.
Abstract: Recent research in federated database systems has advanced in the direction of federations of multimedia databases. However, in each project studied, there has been little emphasis placed on the subject of metamodels. Conversely, standard database systems (relational, object-relational and object-oriented) define metadata models that lack multimedia and federation features. In this paper, a specification of a metadata architecture for a multimedia database federation is presented. The architecture is based on a new object-oriented metamodel that has support for multimedia types and federated metadata. By using this metamodel, administrators and users of a multimedia federation can determine precisely how data is structured and the types of operations that are possible.
12 citations
28 Sep 2007
TL;DR: This paper addresses multimedia database fragmentation to take into account the rich characteristics of multimedia objects and makes use of the neighborhood concept in knowledge bases to identify semantic implications, which constitutes the core of the proposal.
Abstract: Database fragmentation allows reducing irrelevant data accesses by grouping data frequently accessed together in dedicated segments. In this paper, we address multimedia database fragmentation to take into account the rich characteristics of multimedia objects. We particularly discuss multimedia primary horizontal fragmentation and focus on semantic-based textual predicates implication required as a pre-process in current fragmentation algorithms in order to partition multimedia data efficiently. Identifying semantic implication between similar queries (if a user searches for the images containing a car, he would probably mean auto, vehicle, van or sport-car as well) will improve the fragmentation process. Making use of the neighborhood concept in knowledge bases to identify semantic implications constitutes the core of our proposal. A prototype has been implemented to evaluate the performance of our approach.
12 citations
TL;DR: A hypermedia-based distributed design image database system that can provide simple and flexible user access capabilities based on the "kansei" link method, and has developed a prototype distributed multimedia information network incorporating the DHS model.
Abstract: We introduce a hypermedia-based distributed design image database system that can provide simple and flexible user access capabilities based on the "kansei" link method. As proof of this concept, we have developed a prototype distributed multimedia information network incorporating the DHS model. Dubbed the Textile Design Image Database System (TDIDS), this database aids designers using apparel computer-aided design (CAD) systems in different locations, collaborating or working separately, in the design of clothes, including kimonos. Our purpose has been to create a database that will allow each designer to make the best use of his or her creativity and originality-his or her "style and sensitivity to beauty," or, in Japanese, kansei.In our hypermedia system, "metanodes" are defined as abstract nodes that are dynamically organized by multimedia objects, while "metalinks" are defined as flexible kansei links. Metanodes and metalinks are combined to organize a dynamic hypermedia space from which users can easily retrieve desired design image objects by querying a knowledge agent. The knowledge agent, utilizing the knowledge base, creates links from kansei word objects provided by the user to suitable design image objects among those stored on multimedia databases distributed across the network. The knowledge agent also performs query conversion of individual users' subjective kansei (idiosyncratic, subjective use of kansei words) into objective kansei words using each user's own "user model," These objective kansei words are then converted to equivalent color values. Color value is the means by which all stored design images are characterized. This dynamic linking of kansei word objects to equivalent design images allows individual users' kansei to influence the retrieval process. The sophisticated and flexible CAD systems of the future will require multimedia database systems with cooperative supporting capabilities similar to our kansei system.
12 citations