Among the most popular distributed applications in today's networks are Hypermedia Retrieval systems. Due to their rising popularity as well as performance limitations imposed by the underlying communication syste...
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ISBN:
(纸本)3540604790
Among the most popular distributed applications in today's networks are Hypermedia Retrieval systems. Due to their rising popularity as well as performance limitations imposed by the underlying communication system the well known 'World Wide Web' is turning a 'World Wide Wait': Response times increase and at peak traffic times many sites are virtually unreachable. On the other hand emerging network technologies like ATM offer a guaranteed Quality of Service (QoS). Future Hypermedia Retrieval systems will have to be able to reserve bandwidth and request certain timing constraints depending on document media type. Due to the properties of these new media, additional temporal requirements are not only imposed on the presentation (i.e. synchronisation of audio, video and textual information) but also on the transmission of these media streams. There is a desperate need for a uniform QoS architecture and interface for mapping presentation quality to communications requirements to efficiently support the requirements of future distributed multimedia systems and to make optimal use of the QoS capabilities of new networking technologies.
Two different approaches are here presented for converting speech into graphic animation, suitable to lipreading. Coarticulation modeling has been taken into account by means of an original algorithm for multistep sta...
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Two different approaches are here presented for converting speech into graphic animation, suitable to lipreading. Coarticulation modeling has been taken into account by means of an original algorithm for multistep statistical processing of digital speech in the cepstrum space. Two different visualization methods have been used, the first based on key reference pictures and the second based on a parametric flexible structure. Speech is converted, in real-time, into lipreadable visual animation by associating incoming acoustic frames with correspondent consistent graphic primitives, pictures or parameters, suitably visualized. Multiple fields of application are foreseen, mainly in rehabilitation, training, education and communication among hard of hearing people.< >
The aim of this paper is to discuss and present a navigation architecture for an autonomous mobile robot, based on the integration of ultrasonic sensors and stereo vision. The distinctive features are the integration ...
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The aim of this paper is to discuss and present a navigation architecture for an autonomous mobile robot, based on the integration of ultrasonic sensors and stereo vision. The distinctive features are the integration of a "classical" planning approach and subsumption architecture for obstacle avoidance, and the fusion of visual and ultrasonic sensory data. The goal of the experiment is to plan missions between two user defined points in the environment, autonomously avoiding static and dynamic obstacles along the planned path.< >
A distributed computational architecture for the motor planning functions is explored. It combines a paradigm of self-organization (for building robust and coherent maps of the different motor spaces) with relaxation ...
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A distributed computational architecture for the motor planning functions is explored. It combines a paradigm of self-organization (for building robust and coherent maps of the different motor spaces) with relaxation dynamics (for run-time incorporation of task constraints). The model, named SOBoS (Self-Organizing Body Schema), is illustrated with simulation results. Unlike other attempts to use self-organizing techniques for learning sensory-motor mappings, SOBoS can overcome the redundancy problem by learning, during exploratory movements, the direct motor space transformations (which are always well-defined) instead of the inverse ones (which are ill-defined for redundant systems) and by performing, during planning, a relaxation in a potential landscape determined by a combination of multiple task-dependent constraints. The model can initiate actual movements, by supplying the cerebral motor cortex and the cerebellar cortex with the necessary planning patterns, or can support mental simulations with an accurate reproduction of spatial and temporal patterns.< >
A behavioral characterization of nonhierarchical alternate routing schemes in which a certain number of trunks are reserved for direct routed traffic is presented. It is found that the fundamental behavioral character...
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A behavioral characterization of nonhierarchical alternate routing schemes in which a certain number of trunks are reserved for direct routed traffic is presented. It is found that the fundamental behavioral characteristic of the schemes with trunk reservation control is the same as that of the schemes without reservation. A sufficient condition, which can be utilized to find the minimum number of trunks to be reserved for direct routed traffic so as to avoid the instability, obtained. Although the sufficient condition allows absolute stability of the system from the point of view of catastrophe theory, the designer may select a lower number of trunks to be reserved, provided that the stable equilibrium states remain close to each other. A performance index for comparing various levels of reservations among themselves is proposed.< >
This book constitutes the refereed proceedings of the First European Conference on Service-Oriented and Cloud Computing, ESOCC, held in Bertinoro, Italy, in September 2012. The 12 full papers, 3 short papers and 3 pos...
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ISBN:
(数字)9783642334276
ISBN:
(纸本)9783642334269
This book constitutes the refereed proceedings of the First European Conference on Service-Oriented and Cloud Computing, ESOCC, held in Bertinoro, Italy, in September 2012. The 12 full papers, 3 short papers and 3 poster papers were carefully reviewed and selected from 57 submissions. The volume also contains 7 papers from the industrial track. The papers cover the following topics: cloud computing; service quality and analysis; service composition and evolution; composition; security; modeling; adaption.
This volume of the Lecture Notes in computerscience series contains the papers accepted for presentation at the Third International Conference on Autonomous - frastructure, Management and Security (AIMS 2009). The co...
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ISBN:
(数字)9783642026270
ISBN:
(纸本)9783642026263
This volume of the Lecture Notes in computerscience series contains the papers accepted for presentation at the Third International Conference on Autonomous - frastructure, Management and Security (AIMS 2009). The conference took place in Enschede, The Netherlands, hosted by the University of Twente. AIMS 2009 was - ganized and supported by the EC IST-EMANICS Network of Excellence (#26854) and co-sponsored by IFIP WG 6.6 and the Strategic Research Orientation of the University of Twente on Dependable systems and networks (DSN). AIMS 2009 constituted the Third edition of a single-track and standalone c- ference on management and security aspects of distributed and autonomous systems, which took place initially in Oslo, Norway in June 2007, followed by AIMS 2008 in Bremen, Germany. The theme of the AIMS 2009 conference was “Scalability of networks and S- vices,” focusing on how scalable networked systems can be monitored, managed, and protected in an ef cient and autonomous way. The research papers that have been - lected for publication in the present proceedings have approached this theme from d- ferent perspectives, covering topics such as network resource management, overlays andpeer-to-peernetworks,networkcon gurationandoptimization,andmonitoringand visualization.
The First International Workshop on Traffic Monitoring and Analysis (TMA 2009) was an initiative from the COST Action IC0703 "Data Traffic Monitoring and Analysis: Theory, Techniques, Tools and Applications for t...
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ISBN:
(数字)9783642016455
ISBN:
(纸本)9783642016448
The First International Workshop on Traffic Monitoring and Analysis (TMA 2009) was an initiative from the COST Action IC0703 "Data Traffic Monitoring and Analysis: Theory, Techniques, Tools and Applications for the Future networks" (***). The COST program is an intergovernmental framework for European Cooperation in science and Technology, allowing the coordination of nationally funded research on a European level. Each COST Action contributes to reducing the fragmentation in research and opening the European Research Area to cooperation worldwide. Traffic monitoring and analysis (TMA) is now an important research topic within the field of networking. It involves many research groups worldwide that are coll- tively advancing our understanding of the Internet. The importance of TMA research is motivated by the fact that modern packet n- works are highly complex and ever-evolving objects. Understanding, developing and managing such environments is difficult and expensive in practice. Traffic monitoring is a key methodology for understanding telecommunication technology and improving its operation, and the recent advances in this field suggest that evolved TMA-based techniques can play a key role in the operation of real networks. Moreover, TMA offers a basis for prevention and response in network security, as typically the det- tion of attacks and intrusions requires the analysis of detailed traffic records. On the more theoretical side, TMA is an attractive research topic for many reasons.
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