the proceedings contain 37 papers. the topics discussed include: most driven control;privacy access control model for aggregated e-health services;automated middleware QoS configuration techniques using model transfor...
ISBN:
(纸本)9780769533384
the proceedings contain 37 papers. the topics discussed include: most driven control;privacy access control model for aggregated e-health services;automated middleware QoS configuration techniques using model transformations;service level management in global enterprise services: from QoS monitoring and diagnostics to adaptation, a case study;metadata support for transactional Web services;Web services interfaces and open standards integration into the European UNICORE 6 grid middleware;usage tracking components for service-oriented middleware systems;alignment of authentication information for trust federation;an economy driven resource allocation middleware for grid workflow;towards a privacy policy enforcement middleware with location intelligence;and network-centric middleware for service oriented architectures across heterogeneous embedded systems.
Formal concept analysis (FCA) is one of the approaches which can be applied in process of conceptual modeling in domain of text documents. FCA can be used for formal analysis of data tables and identification of simil...
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Formal concept analysis (FCA) is one of the approaches which can be applied in process of conceptual modeling in domain of text documents. FCA can be used for formal analysis of data tables and identification of similar objects - clusters (concepts). Extension of classic FCA (binary table data) is one-sided fuzzy version that works with real values in the object-attribute table (document- term matrix in case of vector representation of textual documents). Computational complexity of creation of concept lattices from large context is considerable. this paper describes one simple approach to creation of simple hierarchy of concepts. Starting set of documents is decomposed to smaller sets of similar documents withthe use of clustering algorithm. then one concept lattice is built upon every cluster using FCA method and these FCA-based models are combined to simple hierarchy of concept lattices using agglomerative clustering algorithm. For our experiments we used GHSOM algorithm for finding of appropriate clusters, then 'upper neighbors' FCA algorithm was used for building of particular concept lattices. Finally, particular FCA models were labeled by some characteristic terms and simple agglomerative algorithm was used for clustering of local models, withthe metric based on these characteristic lattices terms. We have used this approach also to extend it for Grid-based solution in which time consuming building of several local models is distributed between grid computing nodes and then it leads to speed-up of computing of final model.
Like RM-ODP[1], enterprise Architecture (or EA for short) has its own perspectives as a basic construct for its architecture definition to represent areas of concern. In this paper difference between RM-ODP and one co...
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ISBN:
(纸本)9781424442263
Like RM-ODP[1], enterprise Architecture (or EA for short) has its own perspectives as a basic construct for its architecture definition to represent areas of concern. In this paper difference between RM-ODP and one concrete example EA, and applicability of Use of UML for ODP system specifications [2] (or UML4ODP in short) standard to the example FA, are discussed Several additional diagrams that exist in EA guideline book in Japan [4] but not in UML4ODP are suggested as complementary additions to existing diagrams. the work is based on the UML4JEA Profile [5][6] developed by Interoperability Technology Association for Information Processing, Japan.
this is an introduction to the proceedings of the MWS 2007 workshop held at EDOC 2007. It first explains the motivation for and background of the workshop. then, it contains a short description of the keynote, each lo...
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ISBN:
(纸本)9781424442263
this is an introduction to the proceedings of the MWS 2007 workshop held at EDOC 2007. It first explains the motivation for and background of the workshop. then, it contains a short description of the keynote, each long and short peer-reviewed paper, and the discussion session "Impact of Various Execution Environments on Middleware for Web Services". After the closing statements, MWS 2007 Program Committee members are listed
In the current globalized world, characterized by strong Web based interactions, relationships between people and organizations are subject to fast changes. this situation justifies the need for an approach that can c...
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ISBN:
(纸本)9781424442263
In the current globalized world, characterized by strong Web based interactions, relationships between people and organizations are subject to fast changes. this situation justifies the need for an approach that can capture business changes and quickly implement them into computational systems. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, a model for flexible service integration using business rules and service ontology is proposed. the volatile portions are externalized as business rules and the stable portions as Web services. this paper presents the main concepts of the model and an overview of the proof of concept applied to validate the model.
Statistical graphs are ubiquitous mechanisms for data visualization such that most, if not all, enterprises communicate information through their. However, many graphs are stored as unstructured images or proprietary ...
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ISBN:
(纸本)9781424442263
Statistical graphs are ubiquitous mechanisms for data visualization such that most, if not all, enterprises communicate information through their. However, many graphs are stored as unstructured images or proprietary binary objects, making them difficult to work with beyond the reports in which they are embedded. While graphs can be mapped to more common XML representations, these lack expressive semantics to discover new knowledge about them or to answer queries at various levels of granularity this paper describes an OWL ontology that facilitates the representation, exchange, reasoning and query answering of statistical graph data. We illustrate the advantages of using an ontological approach to discover and query about time-series statistical graphs.
the UNICORE Grid system provides a seamless, secure and intuitive access to distributed Grid resources. In recent years, UNICORE 5 is used as a well-tested Grid middleware system in production Grids (e.g. DEISA, D-Gri...
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ISBN:
(纸本)9781424442263
the UNICORE Grid system provides a seamless, secure and intuitive access to distributed Grid resources. In recent years, UNICORE 5 is used as a well-tested Grid middleware system in production Grids (e.g. DEISA, D-Grid) and at man), supercomputer centers world-wide. Beyond this production usage, UNICORE serves as a solid basis in many European and international research projects and business scenarios from T-Systems, Philips Research, Intel, Fujitsu and others. To foster ongoing developments in multiple projects, UNICORE is open source under BSD license at SourceForge. More recently, the new Web services-based UNICORE 6 has become available that is based on open standards such as the Web Services Addressing (WS-A) and the Web Services Resource Framework (WS-RF) and thus conforms to the Open Grid Services Architecture (OGSA) of the Open Grid Forum (OGF). In this paper we present the evolution from production UNICORE 5 to the open standards-based UNICORE 6 and its various Web services-based interfaces. It describes the interface integration of emerging open standards such as OGSA-BES and OGSA-RUS and thus provides an overview of UNICORE 6.
Replication is a primary means to achieve fault tolerance in distributed systems. While replication techniques are well known and have been widely applied in distributedobject and database systems, they have not yet ...
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ISBN:
(纸本)9780769529226
Replication is a primary means to achieve fault tolerance in distributed systems. While replication techniques are well known and have been widely applied in distributedobject and database systems, they have not yet been extensively used in service oriented systems. However if the success of service oriented computing shall continue in critical settings, replication middleware will play a crucial role in service oriented infrastructures. thus, we contribute with a discussion of our experiences in building distributedobject and service replication middleware and present the main lessons learned. Our conclusions are drawn from several replication middleware implementations built upon J2EE, NET CORBA, and Axis2.
the proceedings contain 43 papers. the topics discussed include: approximate analytical models for networked servers subject to MMPP arrival processes;using virtualization to improve software rejuvenation;impact of re...
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ISBN:
(纸本)0769529224
the proceedings contain 43 papers. the topics discussed include: approximate analytical models for networked servers subject to MMPP arrival processes;using virtualization to improve software rejuvenation;impact of request dispatching granularity in geographically distributed web systems;study of bursty Internet traffic;discovering web workload characteristics through cluster analysis;transparent and accurate traffic load estimation for enterprise wireless LAN;distributed subscription clustering with limited knowledge sharing for content-based publish/subscribe systems;fail-aware publish/subscribe;message diffusion in unstructured overlay networks;exploiting host name locality for reduced stretch P2P routing;security and performance analysis of a secure clustering protocol for sensor networks;and dynamic load balancing for network intrusion detection systems based on distributed architectures.
Complex engineering applications demand powerful computing resources. An object based distributed system is suitable for such applications due to the inherent parallelism nature in the object based computing model. As...
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ISBN:
(纸本)9781424409723
Complex engineering applications demand powerful computing resources. An object based distributed system is suitable for such applications due to the inherent parallelism nature in the object based computing model. As the model is based on message passing, which in turns relies on location transparent object names, an efficient name translation system is therefore required to map the object names to the corresponding physical addresses dynamically. In this paper, we propose a heuristic distributed search algorithm, the hierarchy random walker (HRW), to take advantage of the locality of object communications thereby increasing the overall system performance. Analysis of the simulation results from a number of benchmark programs have demonstrated that the benefits of the proposed algorithm are in terms of flexibility and efficient to locate the most used objects. the approach will be applied to intelligent techniques for engineering problems.
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