An internet-based distributed manufacturing system usually consists of a network/grid of autonomous centers that collaborate together. Each center may receive world-wide customer orders and collaborates with other fri...
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An internet-based distributed manufacturing system usually consists of a network/grid of autonomous centers that collaborate together. Each center may receive world-wide customer orders and collaborates with other friendly manufacturers, sub-contractors, agents, and suppliers to maximize the sales and quality of the goods. The centers together strike a consistent balance in terms of manufacturing speed, quality, material costs, and workload. The queue maintained by the front-end server/coordinator in each center usually contains requests from different internal and external sources. The merged traffic from these sources can inundate the queue buffer and cause overflow easily in high loading situations. As a result this leads to request retransmissions, unreliable collaborations, and unhappy customers. One way to eliminate buffer overflow in non-persistent (transient) situations is to tune the buffer size on the fly to ensure that it always cover the queue length. The recurrent NNC (neural network controller) or R-NNC proposed in this paper can achieve efficacious dynamic buffer size tuning at the user level for autonomous centers in an internet-based distributed manufacturing system.
The mismatch between current peer-to-peer (P2P) overlay structures and the underlying network topology causes high end-to-end latency and inefficient network resource usage. This paper presents a self-organising overl...
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The mismatch between current peer-to-peer (P2P) overlay structures and the underlying network topology causes high end-to-end latency and inefficient network resource usage. This paper presents a self-organising overlay network that closely reflects the underlying network topology by using the basic idea of a node locating scheme called geographical longest prefix matching (Geo-LPM) [2004]. Geo-LPM combines IP prefixes and a network metric measurement to cluster nodes efficiently. We optimise Geo-LPM to adapt to different geographical locations so that nodes in the same clusters often belong to the same physical network. We propose to implement Geo-LPM in a distributed fashion. As a result, the overlays utilise the underlying network resources more efficiently and reduce the delay from end-to-end. The system is self-organising, distributed, and decentralised with low overhead.
With the onset of the internet the perception of computing systems in general has revolutionised. Areas of research have migrated from developing nodes to building networks - thus requiring the need for a variety of i...
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With the onset of the internet the perception of computing systems in general has revolutionised. Areas of research have migrated from developing nodes to building networks - thus requiring the need for a variety of information processing techniques, such as clustering, classification, dependency modelling and others. However, the applications of sensor networks are yet to evolve in such proportions. Some of the primary constraints being the resources available in an embedded environment, the need to dynamically configure services to carry out a variety of tasks, communication interfaces and sensing and monitoring techniques. This paper discusses a holonic analysis to aid in mitigating ill-structured and often problematic situations that are often characterized by uncertainty in reasoning and the varying nature of relationships with associated elements. The proposed methodology is a synergy between the classic model derived from soft systems methodology (SSM) and the model of systemic analysis through familiar entities (SAFE). Development of an intelligent security system (ISS) has been considered to be an ideal test-bed for this synergy to go through the phases of problem definition and exploration, development of conceptual models and generation of insight to stimulate acceptable and feasible changes. The technical aspect of this system encompasses the mode of query processing and surveillance through a structured sensor network set up with the aid of distributed services and network protocols.
The emergence of content delivery, networks (CDN) has helped improve the efficiency, of delivering streaming media. In this paper, we argue with evidence that the edge delivery, paradigm behind current CDNs cannot sca...
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ISBN:
(纸本)076951507X
The emergence of content delivery, networks (CDN) has helped improve the efficiency, of delivering streaming media. In this paper, we argue with evidence that the edge delivery, paradigm behind current CDNs cannot scale up to delivering high-quality broadband video content such as DVD movies. This is because there are no sufficient and affordable bandwidth and quality, of service (QoS) on the last mile. Additionally, it is difficult to scale up edge delivery, with increasing number of users and aggregate bandwidth demand in services such as video-on-demand. We describe a new architec-ture that extends the current CDN design with a second tier of surrogate servers. These second-tier surrogate servers, called leaf servers are placed inside local area networks and networked homes with broadband internet connection. High scalability and QoS can be achieved because media content is served to clients by massively distributed leaf servers over the last foot.
In the distributed digital libraries, it allows users to access data of different modalities, from different information sources, and ranked by different criteria. But most applications make too many assumptions, and ...
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ISBN:
(纸本)0769515061;076951507X
In the distributed digital libraries, it allows users to access data of different modalities, from different information sources, and ranked by different criteria. But most applications make too many assumptions, and need too much information. In, this paper, we assume that each information retrieval model is satisfactory in its own context. Based on this assumption, we propose two results processing methods: Ranking by Sources (RBS) and Simply Merging Results (SMR). In RBS, we define satisfied ranking, which is the ranking satisfying most source rankings, and satisfied distance, which indicates how 7 specific source ranking suits the satisfied ranking. RBS groups the results by the ranked sources, which is sorted by their satisfied distances. In SMR, for each result, we substitute the normalised score for its original scores, and then merge them using normalized scores. The experiment showed that our methods are very feasible in the rapid expanding distributed digital libraries.
What will an archive of language resources look like in the future? It is to be expected that developments in computer technology will have an impact on the nature of language resources which will be created in the fu...
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What will an archive of language resources look like in the future? It is to be expected that developments in computer technology will have an impact on the nature of language resources which will be created in the future. A projection current trends into the future helps us to see that there will be more multimedia and multilingual resources. It is also likely that increasing internet bandwidth will lead to a more distributed architecture whereby resources are accessed remotely rather than held locally. This will also facilitate the development of virtual corpora, whereby temporary, ad hoc, collections of texts can be assembled for a specific analysis. Increasingly it will become the norm to extract information from resources held in the archive, rather than downloading the corpus, installing software to analyse it with and getting them to work together. It can therefore be predicted that although archives will continue to have an important role in the preservation of resources, other roles will develop or grow in importance, as archives adapt to allow the creation of virtual corpora and online access to resources, and become centres of resource creation expertise, metadata validation and resource discovery. This paper discusses the new directions envisaged by the Oxford Text Archive (OTA), and in particular its current initiatives to improve the service provided for the community of academic linguistics researchers in the UK.
Multimedia data, typically image data, is increasing rapidly across the internet and elsewhere. To keep pace with the increasing volumes of image information, new techniques need to be investigated to retrieve images ...
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It is widely recognized that the scalable and efficient management of large, heterogeneous information technology infrastructures requires middleware that allows the extension of managed resources with new functionali...
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The proceedings contain 26 papers. The special focus in this conference is on Information Discovery, Management on the internet, Prototypes, Systems, Mobile Information Agents and Rational Information Agents for Elect...
ISBN:
(纸本)3540663258
The proceedings contain 26 papers. The special focus in this conference is on Information Discovery, Management on the internet, Prototypes, Systems, Mobile Information Agents and Rational Information Agents for Electronic Business. The topics include: Agent technology from a NASA perspective;towards a social information infrastructure;autonomous search for information in an unknown environment;resource management in agent-based distributed environments;a multi-agent architecture for an intelligent website in insurance;formation of cooperative behavior among information agents in web repository change monitoring service;an agent-based system for intelligent collaborative filtering;inter-agent communication in cooperative information agent-based systems;intention reconciliation in the context of teamwork;an initial empirical investigation;a similarity evaluation technique for cooperative problem solving with a group of agents;a computational model for a cooperating agent system;maintaining specialized search engines through mobile filter agents;execution monitoring in adaptive mobile agents;mobile-agent mediated place oriented communication;the role of agent technology in business to business electronic commerce;an agency-based framework for electronic business;secure agent-mediated auctionlike negotiation protocol for internet retail commerce;arbitration and matchmaking for agents with conflicting interests;enabling integrative negotiations by adaptive software agents;an adaptive conversational interface for destination advice and a cooperative comprehension assistant for intranet-based information environments.
Much reusable software is available for solving routine mathematical and statistical problems. Unfortunately, locating this software is often quite difficult in current distributedcomputing environments. The Guide to...
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Much reusable software is available for solving routine mathematical and statistical problems. Unfortunately, locating this software is often quite difficult in current distributedcomputing environments. The Guide to Available Mathematical Software (GAMS) virtual software repository seeks to remedy this by providing users with convenient access to thousands of software modules physically distributed among several internet repositories, including netlib. In this paper the author will illustrate the use of GAMS, describe its implementation, and outline plans for the incorporation of expert advisory capabilities.
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