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检索条件"任意字段=Conference on Multimedia Computing and Networking"

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An overview of content-based image retrieval techniques

An overview of content-based image retrieval techniques

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International conference on Advanced Information networking and Applications (AINA)

作者： Sagarmay Deb Yanchun Zhang Department of Maths & Computing University of Southern Queensland NSW Australia School of Computer Science and Mathematics Victoria University of Technology Melbourne VIC Australia

Content-based image retrieval is currently a very important area of research in the area of multimedia databases. Plenty of research work has been undertaken to design efficient image retrieval techniques from image or multimedia databases. Although a large number of indexing and retrieval techniques have been developed, there are still no universally accepted feature extraction, indexing and retrieval techniques available. In this paper, we present an up-to-date review of various content-based image retrieval systems. Since the volume of literature available in the field is enormous, only selected works are mentioned.

关键词： Image retrieval Content based retrieval Information retrieval multimedia databases Indexing Image segmentation Shape Image databases Australia Computer science

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A-STAR: A mobile ad hoc routing strategy for metropolis vehicular communications

A-STAR: A mobile ad hoc routing strategy for metropolis vehi...

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3rd International IFIP-TC6 networking conference, networking 2004

作者： Seet, Boon-Chong Liu, Genping Lee, Bu-Sung Foh, Chuan-Heng Wong, Kai-Juan Lee, Keok-Kee Centre for Multimedia and Network Technology Nanyang Technological University Singapore Network Technology Research Centre Nanyang Technologkai University Singapore Institute for Computing Systems Architecture Informatics University of Edinburgh United Kingdom

ISBN: (纸本)9783540246930

One of the major issues that affect the performance of Mobile Ad hoc NETworks (MANET) is routing. Recently, position-based routing for MANET is found to be a very promising routing strategy for inter-vehicular communication systems (IVCS). However, position-based routing for IVCS in a built-up city environment faces greater challenges because of potentially more uneven distribution of vehicular nodes, constrained mobility, and difficult signal reception due to radio obstacles such as high-rise buildings. This paper proposes a new position-based routing scheme called Anchor-based Street and Traffic A ware Routing (A-STAR), designed specifically for IVCS in a city environment. Unique to A-ST AR istheusage of information on city bus routes to identify an anchor path with high connectivity for packet delivery. Along with a new recovery strategy for packets routed to a local maximum, the proposed protocol shows significant performance improvement in a comparative simulation study with other similar routing approaches. © IFIP International Federation for Information Processing 2004.

关键词： Stars

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The database which creates multilingual web information on preventing infectious diseases

The database which creates multilingual web information on p...

引用

International conference on e-health networking, Applications and Services (HealthCom)

作者： Y. Ishibashi I. Nakajima Statlab Inc. USA Institute of Medical Sciences Tokai University Japan

It is important to improve the knowledge of preventative measures among low-income people. A multimedia-assisted public health courseware would be far more cost-effective rather than providing systems to support high-income doctors. In order to give poor people educations on preventing infectious diseases intelligible narration and impressive representation are indispensable. We have realized this with multimedia technology in Internet environment, and we have developed a courseware on preventing infectious diseases. At this time this courseware is in English and Bengali languages. The presentation in many languages is very important, therefore, we have developed the database which creates web based information in various languages. In this paper the structure and functions of the database are discussed.

关键词： Diseases Courseware Public healthcare Natural languages Internet Educational institutions multimedia databases Pediatrics Economic indicators Blood

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A weight-based adaptive call admission control scheme for integrated multimedia traffic in mobile wireless networks

A weight-based adaptive call admission control scheme for in...

引用

International conference on Parallel Processing Workshops (ICPPW)

作者： Haitang Wang D.P. Agrawal OBR Center for Dsitributed and Moblie Computing ECECS University of Cincinnati Cincinnati OH USA

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A time and distance-based multicast algorithm for IPv6 mobile networks

A time and distance-based multicast algorithm for IPv6 mobil...

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International conference on Advanced Information networking and Applications (AINA)

作者： Wu-Hsiao Hsu Bin-Hau Lee Ming-Han Liu Bor-Yeh Shen Kun-Hua Lin Department of Computer Science and Engineering Ming Chuan University Taoyuan Taiwan

IP multicasting has naturally been considered the ideal technique to be used with multimedia communications. Unfortunately, current multicast protocols do not consider the dynamic membership. Therefore, we propose a time and distance-based multicast algorithm (TDBMA) for IPv6 mobile networks. The TDBMA is subject to time and distance. A foreign network is qualification to join the existing multicast tree only its value of time and distance is larger than a computed threshold. The experimental analyses are presented to characterize the performance of the proposed algorithm.

关键词： Multicast algorithms Multicast protocols Subscriptions Mobile computing multimedia communication Computer networks Wireless networks Video on demand Computer science Mobile communication

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Connection-level performance analysis for adaptive bandwidth allocation in multimedia wireless cellular networks

Connection-level performance analysis for adaptive bandwidth...

引用

IEEE International conference on Performance, computing and Communications (IPCCC)

作者： N. Nasser H. Hassanein Telecommunications Research Laboratory School of Computing Queen's University Kingston ONT Canada

In this paper, we propose an adaptive bandwidth framework for supporting multiple classes of multimedia services with different quality of service (QoS) requirements in the next generation of wireless cellular networks. The framework combines the following components: (i) a threshold-based bandwidth allocation policy. (ii) an efficient threshold-type call admission control (CAC) algorithm, and (iii) a bandwidth adaptation algorithm (BAA). The framework can be modeled as a multi-dimensional Markov chain, and therefore, a product form solution is provided. The QoS metrics - new call blocking probability, handoff call dropping probability, and degradation probability are derived. The analytical results are supported by simulation and show that this work improves the service quality by minimizing the handoff call dropping probability.

关键词： Performance analysis Channel allocation Intelligent networks Land mobile radio cellular systems Bandwidth Quality of service Degradation Telecommunication traffic Next generation networking Wireless networks

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Dynamic service adaptation

Dynamic service adaptation

引用

International conference on Distributed computing Systems Workshop

作者： R. Hirschfeld K. Kawamura Future Networking Laboratory DoCoMo European Laboratories Munich Germany

Change can be observed in our environment and in the technology we build. While changes in the environment happen continuously and implicitly, our technology has to be kept in sync with the changing world around it. Although for some of the changes we can prepare, for most of them we cannot. This is especially true for next generation mobile communication systems that are expected to support the creation of a ubiquitous society where virtually everything is connected and made available within an organic information network. Resources frequently join or leave the network, new types of media or new combinations of existing ones are used to interact and cooperate, and services are tailored to preferences and needs of individual customers to better meet their needs. We outline our research in the area of dynamic service adaptation to provide concepts and technologies allowing for such environments.

关键词： Mobile communication Context-aware services Context Distributed computing Logic programming Reflection Next generation networking Mobile computing multimedia computing Application software

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Adaptive call admission control for multimedia wireless networks with QoS provisioning

Adaptive call admission control for multimedia wireless netw...

引用

International conference on Parallel Processing Workshops (ICPPW)

作者： N. Nasser H. Hassanein Telecommunications Research Laboratory School of Computing Queen's University Kingston ONT Canada

This paper introduces a novel Quality of Service Adaptive Call Admission Control (QoS-AdCAC) framework for next generation broadband wireless cellular networks supporting wireless multimedia services with different classes of traffic and diverse bandwidth requirements. In this work, each base station locally, independently of other base stations in the network, differentiates between new and handoff calls for each class of traffic by assigning a threshold to each class according to its QoS requirements. The threshold values change dynamically in order to respond to the varying traffic conditions. The main feature of the proposed framework is its ability to simultaneously achieve several design goals, which makes it suitable for real time execution. Simulation results show the strength of our proposed framework.

关键词： Programmable control Adaptive control Call admission control Wireless networks Quality of service Bandwidth Land mobile radio cellular systems Base stations Proposals Next generation networking

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A location-aware layer 7 proxy handoff mechanism over the mobile network environment

A location-aware layer 7 proxy handoff mechanism over the mo...

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International conference on Advanced Information networking and Applications (AINA)

作者： Chung-Ming Huang Chao-Hsien Lee Chung-Yi Lai Yuan-Tse Yu Laboratory of Multimedia Mobile Networking Department of Computer Science and Information Engineering National Cheng Kung University Tainan Taiwan

ISBN: (纸本)0769520510

In a server-proxy-client 3-tier architecture of the wireless mobile network, proxies should be dynamically assigned to serve mobile hosts according to geographical dependency and the network situation. The goal of proxy handoff is to allow a mobile host still can receive packets from the corresponding server even though its served proxy is switched from the current one to the other one. A 3-tier multimedia mobile transmission platform, called MMTP, is proposed to solve the proxy handoff problem in the IPv6-based wireless mobile network. In MMTP, a proxy handoff scheme, which is based on the application layer anycast technique, is proposed to select from a number of candidate proxies according to the load balance concern and wireless network situation concern.

关键词： Network servers Materials requirements planning Mobile computing IP networks Chaotic communication Computer science Computer architecture Packet switching Wireless networks Mobile radio mobility management

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Applying speech interface to Mahjong game

Applying speech interface to Mahjong game

引用

International conference on multimedia Modeling (MMM)

作者： Jie Zhang Ji Zhao Shuanhu Bai Zhiyong Huang School of Computing National University of Singapore Singapore Institute for Infocomm Research Singapore

ISBN: (纸本)0769520847

Computer game development has raised many challenges to the computer science. Among them, human computer interaction and networking are two fundamental aspects. We propose a multi-player game framework with a speech interface based on existing speech synthesis and recognition engines. To study this framework, we have implemented a popular and historic Chinese game Mahjong. We describe the implementation by its speech interface, networking, and graphics user interface (GUI). We conducted experiments over the Internet. Four Pentium III 450 MHz PCs (128MB RAM and 4GB hard disk) were used with one PC taking the roles as the server and client at the same time. The speech interface has proven to enhance the human computer interaction as reported by the participants.

关键词： Human computer interaction Speech synthesis Computer science Speech recognition Search engines Computer graphics User interfaces Graphical user interfaces Internet Personal communication networks

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