Enterprise software development is a very knowledge-intensive process. Modern component-based application development organizations often require collaboration of several stakeholders distributed between different sit...
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In this paper we consider the problem of exact string matching algorithm based on a two-dimensional array. this has applications such as string databases, cellular automata and computational biology. the main use of t...
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this is an ongoing research in international outsourcing software production. this research examines how Software production through the ICT-supported unified process of international outsourcing could be executed and...
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the institution of 'electronic markets as services' needs careful design. In this context, Market Engineering provides a structured design process that guides the market designer in this demanding task. In ana...
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Ontologies act as the key enablers for the semantic web and they provide basis for the interoperability among different distributed systems as to realize the goal of automated service oriented architectures and the se...
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ISBN:
(纸本)0889866104
Ontologies act as the key enablers for the semantic web and they provide basis for the interoperability among different distributed systems as to realize the goal of automated service oriented architectures and the semantic *** ontologies offer a way to apply structured and well-defined meanings .In order to achieve the vision of semantic web and service-oriented architectures in full potential we need to integrate certain technologies i.e. agents and web services technologies. In order for agents to interoperate withthe web services dynamically, ontologies need to be mapped explicitly. We need the transformation of ontologies in existing architectures to maintain ontology related data or ontology descriptions so that agents may search and utilize the required ontologies dynamically. In this paper we have presented the concept of an ontology gateway which enables a bidirectional communication between agents and web services by translating FIPA ACL messages into equivalent OWL messages and vice versa.
the long lifecycles of many scientific applications tend to surpass multiple generations of Grid technologies opening an increasing gap developers need to bridge. Automatic adaptation and migration of software to newe...
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ISBN:
(纸本)9781424403431
the long lifecycles of many scientific applications tend to surpass multiple generations of Grid technologies opening an increasing gap developers need to bridge. Automatic adaptation and migration of software to newer environments remains therefore as interesting research question. Most existing state-of-the-art solutions are Grid middleware services that execute programs based on provided descriptions forcing clients to use a generic and non-problem-centric interface. this short paper outlines the Otho Toolkit for synthesis of Grid application wrapper services based on specifications of scientific legacy programs. the generated output are service source codes that are either automatically built and packaged into a ready-to-deploy services or taken by developers for manual refinement. the services are customised and tailor-made for a specific application, service hosting environment and computational infrastructure. To increase their benefit they can be enhanced with supplemental functionality such as security credential management or filestaging. We applied the Otho Toolkit recursively to itself to synthesise a sophisticated Factory service that creates application-specific Grid services on-demand.
We present a system for secure telephone conferences (stc) over the internet. the system ensures participant authentication via x.509 certificates, such that every participant of a conference is informed about every o...
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ISBN:
(纸本)0769526403
We present a system for secure telephone conferences (stc) over the internet. the system ensures participant authentication via x.509 certificates, such that every participant of a conference is informed about every other participant. Also, all signaling and media data are encrypted, to ensure confidentiality. the system builds upon the open source telephone server asterisk and standard IP softphones. those software products are used unaltered. Stc client and server processes reside with softphones and server, respectively, to realize secure conferences. Experiments with our prototype show that the additional network and processor load is low, and that the system scales well for more than 10 participants.
Enterprise organizations use Data Warehouses (DWHs) to analyze their performance. Performance is judged regarding the achievement of goals. DWH data models are well established. there exist numerous domain-specific mo...
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A master equation characterizes the time-evolution of trajectories, the transition of states in protein folding kinetics. Numerical solution of the master equation requires calculating eigenvalues for the correspondin...
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ISBN:
(纸本)0769524664
A master equation characterizes the time-evolution of trajectories, the transition of states in protein folding kinetics. Numerical solution of the master equation requires calculating eigenvalues for the corresponding large scale eigenvalue problem. In this paper, we present a parallelcomputing technique to compute the eigenvalues of the matrix with an N-dimensional vector of the instantaneous probability of the N conformations. parallelization of the implicitly restarted Arnoldi method is successfully implemented on a PC-based Linux cluster. the parallelization scheme used in this work mainly partitions the operations of the matrix. For the Arnoldi factorization, we replicate the upper Hessenberg matrix H-m for each processor and distribute the set of Arnoldi vectors V-m among processors. Each processor performs its own operations. this algorithm is implemented on a PC-based Linux cluster with message passing interface (MPI) libraries. Our preliminary numerical experiment performing on the 32-nodes PC-based Linux cluster has shown that the maximum difference among CPUs is within 10%. A 23 times speedup and 72% parallel efficiency are also attained for the tested cases. this approach enables us to explore large scale dynamics of protein-folding.
the proceedings contain 84 papers. the special focus in this conference is on Architectures, Networks, Languages and Algorithms. the topics include: the impact of multicore on math software and exploiting single preci...
ISBN:
(纸本)9783540680673
the proceedings contain 84 papers. the special focus in this conference is on Architectures, Networks, Languages and Algorithms. the topics include: the impact of multicore on math software and exploiting single precision computing to obtain double precision results;trends in high performance computing for industry and research;emerging technologies and large scale facilities in HPC;architecture and performance of dynamic offloader for cluster network;dynamic anchor based mobility management scheme for mobile IP networks;choosing a load balancing scheme for agent-based digital libraries;the optimum network on chip architectures for video object plane decoder design;a hardware NIC scheduler to guarantee QOS on high performance servers;multihomed routing in multicast service overlay network;region-based multicast routing protocol with dynamic address allocation scheme in mobile ad-hoc networks;limiting the effects of deafness and hidden terminal problems in directional communications;enforcing dimension-order routing in on-chip torus networks without virtual channels;a distributed backbone formation algorithm for mobile ad hoc networks;randomized leader election protocols in noisy radio networks with a single transceiver;a hybrid intelligent preventive fault-tolerant QOS unicast routing scheme in IP over DWDM optical internet;adaptive technique for automatic communication access pattern discovery applied to data prefetching in distributedapplications using neural networks and stochastic models;process scheduling using ant colony optimization techniques and interference aware dynamic subchannel allocation in a multi-cellular OFDMA system based on traffic situation.
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