This paper discusses the use of MPEG standards in the design and development of interoperable cloud based media architectures and services. Both offline and real-time media processing architectures are presented. Practical algorithms for metadata extraction from video content are discussed at a high level. Examples are given of derived metadata in MPEG-7 Detailed Audiovisual Profile (DAVP) for ...

As pervasive computing is becoming a reality that has already begun to shape our lives, the need for multimedia delivery systems in wireless and mobile environments is direr. The richness of multimedia data, the limitations of the wireless networks, and the restrictions imposed by the portable device modalities give rise to a complex problem that is in need of immediate solutions. The Moving Pi...

The growth of multimedia is increasing the need for standards to access and search distributed repositories. Recently, the Moving Picture Experts Group (MPEG) has developed the MPEG Query Format (MPQF) to make multimedia access and search easier and interoperable across search engines and repositories. Since MPQF is not supported by any database products including native XML databases and relat...

by identifying semantically meaningful entities can be arduous because it is difficult to simulate human perception. However, by creating an algorithm to respond interactively to user preference, content-retrieval systems can become more efficient and easier to use. O ver the past decade, the amount of existing multimedia data has exploded because of the proliferation of low-cost devices design...

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The flourish of data-intensive systems that are geared towards direct use by non-experts, such as Natural Language question answering systems and query-by-example frameworks calls for the incorporation of provenance management. Provenance is arguably even more important for such systems than for “classic” database application. This is due to the elevated level of uncertainty associated with the...

We show that a simple “reputation-style” test can always identify which of two experts is informed about the true distribution. The test presumes no prior knowledge of the true distribution, achieves any desired degree of precision in some fixed finite time, and does not use “counterfactual” predictions. Our analysis capitalizes on a result due to Fudenberg and Levine (1992) on the rate of conv...