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检索条件"任意字段=Conference on Multimedia Content Access - Algorithms and Systems"

共 2023 条记录，以下是271-280 订阅

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content protected adaptive streaming of multimedia over IP networks

Content protected adaptive streaming of multimedia over IP n...

引用

IEEE 11th International conference on Emerging eLearning Technologies and Applications (ICETA)

作者： Michalko, M. Cymbalak, D. Tech Univ Kosice Kosice Slovakia

ISBN: (纸本)9781479921621

This paper deals with concept of protected access to multimedia with respect to rights management of transmitted content. Presented technologies are ready to be implemented and fulfill the needs of most of Internet Service Providers for video on demand service to customers with respect legal issues given by content owners. With numbers of users using mobile devices for streaming delivery there is need to implement new authentication models and methods. This paper presents some ideas based on features provided by modern mobile operating systems. Part of this work presents Videoserver platform developed by Computer Networks Laboratory at Technical University in Kosice. Videoserver platform serves as testbed for developing new solutions for better content handling and for providing secure access to content. Paper is focused mostly on outlines of possible solutions to open problems.

关键词： MULTI-MEDIA SYSTEM Internet Protocol networks video-on-demand service internet service providers Streaming Outlines paper Mobile devices demand service

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Preservation and access of cultural heritage objects through a Digital Archive Network for Anthropology 7

Preservation and access of cultural heritage objects through...

引用

7th International conference on Virtual systems and multimedia (VSMM 2000)

作者： Clark, JT Slator, BM Bergstrom, A Larson, F Frovarp, R Landrum, JE Perrizo, W N Dakota State Univ Dept Sociol & Anthropol Comp Sci Informat Technol Serv Fargo ND 58105 USA

ISBN: (纸本)0769514022

In 1999, the Archaeology Technologies Laboratory (ATL) at North Dakota State University (NDSU) began developing an Internet-based Digital Archive Network for Anthropology (DANA). This federation of databases links researchers, students, and the general public to distributed databases that include realistic, accurate, three-dimensional (313), visual representations of artifacts, fossils, and other objects, along with 2D digitized documents (e.g., maps, plan views, excavation profiles, and photographs) and various associated data. DANA is being created through development and implementation of cross-platform, open standards that will facilitate interoperability and exchange of information between remote systems. DANA enables dynamic use of digital models, virtual measurement tools, and an array of data supplied by contributing content providers (collaborators) for education and scholarly research. This online network of anthropology resources facilitates reliable, "anytime, anywhere" access to content and services. DANA constitutes an enormously valuable learning resource that can be accessed and used at all levels, from K-12, to undergraduate, to post-graduate, to professional, to lifelong learning.

关键词： Interoperability

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Strategies for video file replication based on multiple video popularity models

Strategies for video file replication based on multiple vide...

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Proceedings of the Seventh IASTED International conference on Internet and multimedia systems and Applications

作者： Chan, Cheok-Kuan To, Tsun-Ping J. Li, Chi-Kwong Department of Electronic Engineering Hong Kong Polytechnic University Hung Hom SAR Hong Kong

ISBN: (纸本)0889863806

Fast Internet access technology (ADSL and VDSL) and the coming 3G mobile communication system of high data bandwidth capacity highly facilitate multimedia traffic demands by people. However, there are comparatively little technological advancements in the storage system, the essential part of VoD system. Disk array seems to be the most cost effective choice when I/O Bandwidths, disk space cost and scalability are all considered. The central question is how to offer more concurrent accesses to the videos(especially the popular ones) with the QoS requirements satisfied. In this paper, two replication algorithms are developed and evaluated. The system is modeled and evaluated by a SIMSCRIPT II simulation program. The results illustrate that the two algorithms successfully manage disk resources to support more concurrent video stream.

关键词： multimedia systems

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ELM-N: E-learning Media Navigator

ELM-N: E-learning Media Navigator

引用

-ACM multimedia 2001 Workshops- 2001 multimedia conference

作者： Dorai, C. Kermani, P. Stewart, A. IBM T.J. Watson Research Center P.O. Box 704 Yorktown Heights NY 10598 United States

E-learning or learning via the Web is now changing the way universities and corporations offer education and training. Rather than using conventional means for remotely distributing and delivering courses and classroom lectures, universities and enterprises are moving towards Web-based academic and training offerings. While content acquisition and distribution can be automated in a systematic fashion, research challenges remain in the area of personalized content delivery, access, and augmented interaction. Automated content indexing and annotation for easy and efficient access and navigation of various media elements associated with the course material become key tasks in flexible content delivery and use. E-Learning Media Navigator (ELM-N) from IBM Research is a system with which a user can access and interact with online courses presented as audiovisual material, along with related slides and white board contents in a time-synchronized fashion. In this demonstration, the system capabilities and the research technologies behind them will be presented.

关键词： multimedia systems

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multimedia content analysis and indexing: Evaluation of a distributed and scalable architecture

Multimedia content analysis and indexing: Evaluation of a di...

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conference on Internet multimedia Management systems IV

作者： Mandviwala, HA Blackwell, S Weikart, C Van Thong, J Hewlett Packard Labs Cambridge Res Lab Cambridge MA 02142 USA

ISBN: (纸本)0819451258

multimedia search engines facilitate the retrieval of documents from large media content archives now available via intranets and the Internet. Over the past several years, many research projects have focused on algorithms for analyzing and indexing media content efficiently. However, special system architectures are required to process large amounts of content from real-time feeds or existing archives. Possible solutions include dedicated distributed architectures for analyzing content rapidly and for making it searchable. The system architecture we propose implements such an approach: a highly distributed and reconfigurable batch media content analyzer that can process media streams and static media repositories. Our distributed media analysis application handles media acquisition, content processing, and document indexing. This collection of modules is orchestrated by a task flow management component, exploiting data and pipeline parallelism in the application. A scheduler manages load balancing and prioritizes the different tasks. Workers implement application-specific modules that can be deployed on an arbitrary number of nodes running different operating systems. Each application module is exposed as a web service, implemented with industry-standard interoperable middleware components such as Microsoft *** and Sun J2EE. Our system architecture is the next generation system for the multimedia indexing application demonstrated by ***. It can process large volumes of audio recordings with minimal support and maintenance, while running on low-cost commodity hardware. The system has been evaluated on a server farm running concurrent content analysis processes.

关键词： multimedia information systems content-based searching media indexing media processing distributed computing grid computing web services

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Model-Based Development of Interactive multimedia System 3

Model-Based Development of Interactive Multimedia System

引用

3rd IEEE International conference on Cybernetics (CYBCONF)

作者： Leonard, Scott Olszewska, Joanna Isabelle GE Aviat Southampton Hants England Univ Gloucestershire Cheltenham Glos England

ISBN: (纸本)9781538622018

The increase of the number of flights and connections has led to new demands in terms of passengers' media experience and consumption of In-Flight Entertainment (IFE) systems. For this purpose, we have designed and developed an IFE multimedia system architecture using the Model-Based Development (MBD) approach. Our IFE system has been implemented at both software and hardware levels and includes an LCD screen and Arduino microcontrollers. Hence, our embedded, real-time system allows users to interactively and easily access multimedia content through a low-cost IFE system which has been successfully tested to a standard required by certification authorities.

关键词： Human-Machine Cooperation and systems Human-Machine Interface and Communications multimedia Arduino MatLab Simulink Model-Based Development

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Building hyperaudio: Experimental results in audio source separation

Building hyperaudio: Experimental results in audio source se...

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Proceedings of the Seventh IASTED International conference on Internet and multimedia systems and Applications

作者： Melih, Kathy Gonzalez, Ruben School of Information Technology Griffith University Gold Coast Mail Centre PMB 50 Gold Coast QLD 9761 Australia

ISBN: (纸本)0889863806

Due to the proliferation of technologies to capture, store and present it, we live in a world dominated by multimedia data. However, information access mechanisms to this data by and large are rather primitive. This is especially the case for audio data that presents specific research challenges. One particularly difficult challenge is that of audio source separation. The authors are in the process of developing a perceptually based system to perform audio source separation. This paper presents the results of extensive testing of the most promising candidate algorithms.

关键词： multimedia systems

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myCOMAND: Automotive HMI Framework for Personalization of Web-based content Collections

myCOMAND: Automotive HMI Framework for Personalization of We...

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IEEE International conference on systems, Man and Cybernetics

作者： Fischer, Philipp Nuernberger, Andreas Mercedes Benz R&D N Amer Infotainment & Telemat Palo Alto CA USA Otto von Guericke Univ Fac Comp Sci Magdeburg Germany

ISBN: (纸本)9781424465880

The myCOMAND automotive infotainment system enables in-vehicle access to the large variety of information and multimedia content aggregated from public Web services. In this paper, the fuzzy logic approach for preference modeling for user-related personalization and its bindings to a flexible user interface framework are described. Both components are used to create flexible user interface components that visually rank and group any content items based on user preferences. access to the preferred and most important items with only a few interaction steps can avoid distraction when browsing large web-based content collections on smaller screen sizes. Ranking for each information item is annotated based on fuzzy preferences and a shared taxonomy of content categories. Preference values are implicitly learned from user interaction or can be set explicitly by the user. In particular, a use case for browsing Internet radio stations is described. Items are ranked according to the user's preferences and item novelty and arranged in a carousel-like layout. A visual overview mode helps to quickly review the structure of large content collections.

关键词： Automotive Vser Interface Human Machine Interaction Fuzzy Preference Modeling content-based Recommendation Personalization Proto typing VI Framework

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accessibility of multimedia resources in Web

Accessibility of multimedia resources in Web

引用

3rd International conference on Web Information systems and Technologies

作者： Moreno, Lourdes Iglesias, Ana Martinez, Palorna Univ Carlos III Madrid Dept Comp Sci Avda Univ 30 Madrid 28911 Spain

ISBN: (纸本)9789728865788

This paper emphasises the importance of providing accessibility of Web-based information resources for everybody, not only for people with disabilities. Due to the continuous technical and social changes of the Web, it is necessary to have in mind that new scenarios and user behaviour are appearing. Nowadays, most of Web sites use multimedia resources and it is indispensable to provide accessibility not only to the resource content, but the access to the resource in the Web site. This work summarises some items to take into account in order to make accessible a multimedia resource and present some best practices including on-line multimedia resources in a Web site.

关键词： multimedia accessibility usability user interfaces user needs adaptability caption audio description

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Distributed power control for rate-varying multimedia CDMA systems

Distributed power control for rate-varying multimedia CDMA s...

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43rd IEEE conference on Decision and Control

作者： Akar, M Univ So Calif Dept Elect Engn Syst Commun Sci Inst Los Angeles CA 90089 USA

ISBN: (纸本)0780386825

Future wireless systems will support a variety of different services such as voice, data and video, with variable bit rate requirements. In this work, we consider a multimedia code division multiple access (CDMA) system for which different rates are represented by varying the processing gain, and study the dynamic properties of distributed power control algorithms using the theory of stability for switched systems and M-matrices. Of particular interest is the stability issue under fluctuations in the desired rates for individual users. We demonstrate that the convergence of a distributed power algorithm can be jeopardized for some cases. Furthermore, we provide conditions to check for possible instabilities and study the degradation in system capacity when such instabilities need to be avoided.

关键词： distributed power control rate management resource allocation multimedia wireless switched system

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