The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The following topics are dealt: cyber engineering; human space computing; distributed networks; security and privacy; heterogeneous wireless networks; resource management; security in wireless systems; web services; web and mobile applications; data models and query processing; performance evaluation and testing; SOA and embedded systems; middleware; cloud computing; RFID; wireless sensor networks;...
The Web service resource framework (WSRF) announced in January 2004 is a new mechanism to express how web services interact with the stateful resources, and it has achieved the fusion of Web services and grid services. For the grid application development, WSRF.NET is much easier than Globus Toolkit 4 and it is based on Windows. As WSRF.NET doesn't provide an available scheduler, we introduce Condor...
In order to realize the purpose of precise profit management, resolve data isolated phenomena, utilize all kinds of university resources efficiently, and improve the quality and efficiency of university management, a new and feasible URP (university resource planning) project based on digital university is proposed in this paper, which is established based on the ideology of digital, apply the ideas...
Under web service environment, services' calling or called relationships are usually represented as links. Based on link- or link-content analysis, it may produce tight clusters, which is useful for resource management. However current work only considers the existence of collaboration and it seldom takes service usage context into consideration. In this paper, we suppose to cluster similar services...
Service orientation is a promising paradigm for business architectures. Implementing a service-oriented architecture (SOA) promises increasing flexibility as well as agility and decreasing development and maintenance costs of IT landscapes. Simultaneously with these advantages, the implementation of an SOA entails some inherent challenges. The flexible orchestration of services increases the complexity...
In this paper we examine the problem of rich information environments and the need to narrow the agents attention to what is important for them to interact and later to evaluate and transfer reputation values, using attention allocation technique (AA). We also argue that this cannot be done without the aid of service oriented architecture (SOA). Reputation is used in our work as a service, presenting...
Service concept is evolving as a broad idea recurrently discussed in recent years as it originates from many disciplines such as marketing, operations and computer science. Despite this interdisciplinary nature of service concept, existing methodologies for building service-oriented systems provide limited support to include a complete coverage of various engineering phases for a unified development...
When deploying services in a cloud, a balance must be found between performance and capacity of the service, and the memory available on nodes. This is further complicated if the number of replicas of an application is limited, for instance by the available number of licenses. The analysis of interference between services must scale to large numbers of host nodes, applications, replicas of applications,...
Federated computing environments offer requestors the ability to dynamically invoke services offered by collaborating providers in the virtual service network. Without an efficient resource management, however, the assignment of providers to customer's requests cannot be optimized and cannot offer high reliability without relevant SLA guarantees. We propose a new SLA-based serviceable metacomputing...
In this paper a new model for a distributed Web service system is presented. The proposed system is composed of multiple Web service components having multiple alternative versions distributed among multiple servers. For a given set of requests an allocation is to be found that maximizes total client satisfaction subject to the resource constraints of the servers. To solve this multidimensional multi...
In this paper, we propose to predict the workloads of the service components within the composite workflow based on the communication of the queue condition of service nodes. With this information, we actively discard the requests that has high probability to be dropped in the later stages of the workflow. The benefit of our approach is the efficient saving of limited system resource as well as the...
The repair of faulty processes (workflows, web service compositions) needs information about the state of the involved Web services. We introduce an architecture where (Web service based) activities and their instances are treated as manageable resources. Based on the WAMO Model our activities provide detailed information about the state they currently hold, possible states they can reach, as well...
The success of all kinds of commercial applications or scientific computing running on heterogeneous computing environments is absolutely dependent on the availability and reliability of resources composing the environment. In order to support the major Monitor/Analyze/Plan/Execute management activities for resources, Web service based WS-Management rather than SNMP is drawing more and more attention...
Significant consumption and cost savings can be made by better managing energy usage within small commercial properties and individual dwellings. By combining Web services and off-the-shelf home automation equipment, it is now possible to build a cost-effective infrastructure to support the delivery of energy management services to small consumers. In this paper we treat residential energy management...
This paper deals with the problem of scheduling workflow applications with quality of service (QoS) constraints, comprising real-time and interactivity constraints, over a service-oriented grid network. A novel approach is proposed, in which high-level advance reservations, supporting flexible start and end time, are combined with low-level soft real-time scheduling, allowing for the concurrent deployment...
Infrastructure-as-a-service (IaaS) providers are gaining popularity in the application hosting market. Virtual machines of different sizes (capacities for server resources such as CPU, main memory, etc.) are offered on-demand on an hourly, daily, weekly or monthly basis. Which offering minimizes the hosting costs depends on the sizes and respective prices, but also on the demand patterns of an application...
The digital ecosystem (DE) paradigm is a holistic management/design/integration paradigm that is based on the notion of self-interested, self-managing, proactive and autonomous digital entities that evolve and self-organize. While a DE can be realized using different technologies Web services (WS) are particularly promising due to their widespread acceptance within industry and academia, established...
With the converging of grid computing and Web service, grid has extended its territory from traditional computing grid to service-oriented grid, which is aiming to realize coordinated resource sharing and problem solving through service selection and composition. Therefore, selecting credible services for applications becomes a key issue in grid environment. Current research on trust inherits the...
As the key character of grid is the good service quality, the study of QoS (quality of services) becomes more and more important. And SLA (service level agreement) can really guarantee the QoS. Although SLA has been a topic in the field of telecom for many years, the researches of it in the grid are still not perfect, especially in the emerging grid economy field. In this paper, we propose a SLA control...
The following topics are dealt with: circuit design; system design; information systems; Internet technology; artificial intelligence; software engineering education; service-oriented computing; information security; information privacy; wireless communication; sensor networks; mobile computing; mobile networking; software testing; high performance computing architecture; e-commerce; computer information...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.