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

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Proceedings 23rd International conference on Distributed Computing systems

Proceedings 23rd International Conference on Distributed Com...

引用

International conference on Distributed Computing systems

The following topics are dealt with: self-stabilizing systems; sensor networks and energy management; peer-to-peer services; distributed algorithms; multimedia streaming; secure data sharing; quality of service; Internet protocols; middleware communication services; fault-tolerant systems; ubiquitous computing; network security; real-time systems; Web servers; formal methods; ad hoc network protocols; wide area distributed computing; mobile agents; and wireless access control.

关键词： Distributed algorithms multimedia systems Data security Internet Transport protocols Open systems

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International conference on Information Networking, ICOIN 2003

International Conference on Information Networking, ICOIN 20...

引用

International conference on Information Networking, ICOIN 2003

ISBN: (纸本)3540408274

The proceedings contain 107 papers. The special focus in this conference is on High-Speed Network Technologies, Enhanced Protocols in Internet, QOS in Internet and Mobile Internet. The topics include: A comparative analysis of scheduling algorithms;design of load-adaptive queue management for internet congestion control;performance analysis of an IP lookup algorithm for high speed router systems;a high speed ATM/IP switch fabric using distributed scheduler;an approach to improve efficiency of WDM optical burst switching networks;performance analysis of degree four topologies for the optical core of IP-over-WDM networks;analysis of end-to-end recovery algorithms with preemptive priority in GMPLS networks;an efficient restoration scheme using protection domain for dynamic traffic demands in WDM networks;periodic communication support in multiple access networks exploiting token with timer;an adaptive contention period control in HFC networks;an extension of scalable global IP any casting for load balancing in the internet;energy-efficient communication protocols for wireless networks;router-assisted TCP-friendly traffic control for layered multicast;the stability problem of multicast trees in layered multicast;FUMRP protocol for reliable multicasting in wireless ad-hoc network environments;an MPLS broadcast mechanism and its extension for dense-mode multicast support;error recovery algorithm for multimedia stream in the tree-based multicast environments;shortest-path mailing service using active technology;robust audio streaming over lossy packet-switched networks;personal server model for real-space networking and CORBA extensions to support QoS-aware distributed systems.

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Progressive and scalable encryption for multimedia content access control

Progressive and scalable encryption for multimedia content a...

引用

IEEE International conference on Communications (ICC)

作者： H.H. Yu Xiaolong Yu Panasonic Information and Networking Technologies Laboratory NJ USA Tsinghua University Beijing China

Encryption is one of the most important security tools for secure message communication. There is an increasing need for secure digital multimedia communication technologies to restrict unauthorized access. Prior to the availability of variable bit rate (VBR) communication services, systems typically treat every portion of a message equally and encrypt each and every bit of a message that is decrypted at the same rate as encrypted. Hence, encryption/decryption processes at both ends of the network were required to operate at the same rate. The advent of VBR multimedia communication services require new cryptography system implementations that can operate at different data rates, i.e., be scaled to different speed, different network bandwidths, and diverse receiver device capabilities. In this paper, we describe a progressive and scalable encryption scheme that supports scalability. One desirable feature of the proposed scheme is its simplicity and flexibility in supporting scalable multimedia communication and multimedia content access control.

关键词： Cryptography access control multimedia communication Communication system security Communications technology Availability Bit rate multimedia systems Bandwidth Scalability

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Synchronized multimedia language on mobile phone

Synchronized multimedia language on mobile phone

引用

IEEE International conference on Consumer Electronics (ICCE)

作者： Y. Sato Digital Systems Development Center Technology R&D Headquarters Sanyo Electronic Company Limited Japan

This paper describes a synchronized multimedia language optimized for mobile phones. We can integrate sound, text, and images into a synchronized multimedia content by the language, and play it on mobile phones.

关键词： Mobile handsets Timing Resource management Displays Digital systems Research and development Personal communication networks Radio access networks content management XML

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Relevance feedback algorithm based on learning from labeled and unlabeled data

Relevance feedback algorithm based on learning from labeled ...

引用

IEEE International conference on multimedia and Expo (ICME)

作者： R. Singh R. Kothari IBM India Research Laboratory New Delhi India

Supervised learning algorithms (relevance feedback (RF) algorithms) are often used in content based image retrieval (CBIR) systems to enhance interactive search and browsing of image databases. One of the issues associated with RF based CBIR systems is the lack of a large training set. Labeling of images is a time consuming activity and user's usually do not have the patience to label a large set. The challenge is to somehow leverage the much larger set of unlabeled images to improve the performance of CBIR systems. In this paper we propose a novel RF algorithm which learns from both labeled and unlabeled data. Our proposed algorithm also uses active learning so as to maximize the information gained from a given amount of user feedback.

关键词： Feedback Radio frequency Image databases Iterative algorithms Image retrieval Information retrieval content based retrieval Labeling Supervised learning Training data

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Architecture of a modular streaming media server for content delivery networks

Architecture of a modular streaming media server for content...

引用

IEEE International conference on multimedia and Expo (ICME)

作者： S. Roy J. Ankcorn S. Wee Streaming Media Systems Group Hewlett-Packard Laboratories Palo Alto USA Streaming Media Systems Group Hewlett-Packard Laboratories Palo Alto

A mobile streaming media content delivery network can facilitate the access of rich multimedia streams by mobile users on next generation wireless networks. A principal component of this network is the edge servers that cooperate to provide streaming functionalities. This paper describes some of the design requirements for such servers. It then describes the architecture of such a streaming content, a modular design, and an intelligent scheduler for providing better video quality in varying network conditions. Finally, preliminary performance results are shown.

关键词： Streaming media Network servers Bandwidth File servers Laboratories multimedia systems Next generation networking Wireless networks Web server Intelligent networks

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Scalable encryption for multimedia content access control

Scalable encryption for multimedia content access control

引用

International conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： H.H. Yu Panasonic Information and Networking Technologies Laboratory USA

Traditional cryptography systems treat every portion of a message (a video, an image, or an audio) equally and encrypt the entire message as a whole. As a result, those security systems often have only two states: access authorization and access denial. To facilitate multi-level access control with interoperability, scalable security mechanism is needed. Further, the availability of varying network bandwidth and diverse receiver device capabilities demand scalable and flexible approaches that are capable of adapting to changing network conditions as well as device capabilities. We describe a multimedia encryption scheme that supports scalability. One desirable feature of the proposed scheme is its simplicity and flexibility in supporting scalable content access control.

关键词： Cryptography access control Bit rate Channel capacity Authorization Scalability Protection Decoding Power system security Information security

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Media and metadata management for capture and access systems in electronic lecturing environments

Media and metadata management for capture and access systems...

引用

IEEE International conference on multimedia and Expo (ICME)

作者： A. Stewart P. Wolf M. Hemmje Fraunhofer-IPSI Darmstadt Germany Fraunhofer-IPSI Darmstadt Darmstadt Germany

One of the main challenges facing Web-based multimedia content creators today is the development of cost-effective digital media content for courseware that is reusable and interoperable. Given this, we propose the design and implementation of a model to manage the multimedia and metadata within a system of related topics in a course that is delivered via electronic lectures. This model not only supports the re-purposing and interchange of a course's digital media content, but also preserves the semantic dependencies and associated media-mapping, of pre-requisite and co-requisite knowledge within a course. Coarse grain or topic-based segmentations of an electronic lecture are used as building blocks to automatically create new, media-rich, electronic lecture experiences of interest to a user and subject to the constraints imposed by the model.

关键词： Environmental management Streaming media Electronic learning Costs Courseware multimedia systems Educational institutions content management content based retrieval Filtering

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Scalable multimedia authentication

Scalable multimedia authentication

引用

International conference on Information, Communications and Signal Processing

作者： Hong Heather Yu Panasonic Information and Networking Technologies Laboratory USA

ISBN: (纸本)0780381858

Advances in wireless communication and mobile computing and networking are providing us with growing business opportunities and demands for multimedia services. Consumer networks, increasingly used for multimedia information and commercial content delivery, are destined to be heterogeneous. Meanwhile, for many multimedia services, security is an important component to restrict unauthorized multimedia content access and distribution. This suggests the need for new cryptography system implementations that can operate at different data rates, i.e., be scaled to various multimedia content, different network topology, changing bandwidth, and diverse receiver device capabilities. content authentication is one important security tool for secure multimedia content communication. Conventional message authentication schemes do not offer suitable scalability for this new set of applications. In this paper, we study the design of scalable media data stream authentication when proxy caching is used and present a framework for multimedia authentication that supports various kinds of scalability.

关键词： Authentication Streaming media multimedia systems Communication system security Data security Scalability Wireless communication Mobile computing Computer networks Business communication

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Applying neural network on the content-based audio classification

Applying neural network on the content-based audio classific...

引用

International conference on Information, Communications and Signal Processing

作者： Xi Shao Changsheng Xu M.S. Kankanhalli Institute for Infocomm Research Singapore School of Computing National University of Singapore Singapore

ISBN: (纸本)0780381858

Many audio and multimedia applications would benefit if they could interpret the content of audio rather than relying on descriptions or keywords. These applications include multimedia databases and file systems, digital libraries, automatic segmentation or indexing of video (e.g., news or sports storage), and surveillance. This paper describes a novel content-based audio classification approach based on neural network and genetic algorithm. Experiments show this approach achieves a good performance of the classification.

关键词： Neural networks Speech Multiple signal classification multimedia databases Genetic algorithms Music information retrieval Audio recording Robustness Brightness Bandwidth

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