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Real-Time Bidding allows an advertiser to purchase media inventory through an auction system that unfolds in the order of milliseconds. Media providers are increasingly being integrated into such programmatic buying platforms. It is typical for a contemporary Real-Time Bidding system to receive millions of bid requests per second at peak time, and have a large portion of these to be irrelevant to...
Application-based access control technologies are used to protect systems from malicious or compromised software. Existing rule-based access control systems rely on a comprehensive policy, which defines the resources an application is allowed to access. The generation of these policies is a hard and error-prone task for system engineers. In this work, we provide a framework to automate this task and...
We propose a novel cyberinfrastructure for an emerging class of Internet-based real-time online interactive applications (ROIA). The most challenging representative of this application class are massively multi-player online games. We present the results of the European project Edutain@Grid on the development of efficient cyberinfrastructure and scalable applications. We report experimental results...
Recent success deployment of P2P streaming can provided hundreds of media channels of users at any given time. This evokes an interesting question can the streaming server allocate channel resources efficiently with limited capabilities? In this paper, we propose an auction-based new strategy for resources allocation. The mechanism enable streaming server can provide service according to peer's bidding...
Chiefly aimed at the distributed resource search status in the present educational field, this paper brought the conception of individuation search based on the consumers' interest. The relevant models of individuation analysis and individuation resource searching were designed in this paper. At the same time, self-study arithmetic, the method of information searching and information filtering, was...
Based on analysis of various P2P architectures, the authors in this paper integrate semantic grid with super-peer P2P architecture. First of all, the authors introduce resources searching algorithm based on semantic cluster, and analyze the educational resources sharing mechanism & service system based on super-peer P2P, especially on the model of super-peer P2P. Then the authors focus on the...
A queuing system with dual services, i.e., the primary service and the auxiliary service, is considered in the present article. The server has to allocate part of its capacity to process the additional service when the auxiliary service is requested. We show that the possible optimal auxiliary capacity is actually on the convex envelope of the auxiliary cost function. Also, the optimal control policy...
With the development of grid computing, economy models are invented and increasingly applied, however, that is under the assumption of both transaction parties are honest and trustworthy. In reality there is serious information asymmetry between the transaction participators. Information asymmetry may cause resource providers opportunistically exploit the information gap for resource consumers on...
We develop a framework to study differentiated services when there are competing network providers. We adopt a multi-class queueing model, where providers post prices for various service classes. Traffic is elastic and users are Quality of Service (QoS)-sensitive, and choose a queue and a class with one of the providers. We model the relationship between capacity, QoS and prices offered by service...
Most of grid applications require a large amount of memory resources. If there is not enough memory supplied during execution, the program performance will be significantly degraded by page swapping. To address this problem, we propose a remote paging system called Grid Remote Pager (GRP) for grid computing in this paper. Compared with other remote paging systems, GRP keeps high portability and transparency...
It's necessary to accelerate the modernization process of folk sports' reservation and ways and means of passing down. Based on Web system, this research uses advanced computer technology, information technology and database theory, to establish necessary database for folk sports to design and develop management information system, so as to achieve modernization and maximize reservation and passing-down...
In this paper, agent-based distributed automated testing framework is proposed, and for the current lack of automatic test task allocation function in distributed automated testing framework, an approach of automatic test task allocation based on the test node ability is given. The complex test task is broken down into atomic test tasks, the test tasks in the test definition file is represented using...
Geographic-based addressing and routing has been discussed for more than twenty years. In this paper, we clarify the purpose of fitting geographic information into addressing and routing, and further propose a new geographic-based addressing and routing scheme. Our contribution lies in three aspects. First, we classify previous geographic-based addressing and routing proposals into three categories...
Resource pools are collections of computational resources which can be shared by different applications. The goal with that is to accommodate the workload of each application, by splitting the total amount of resources in the pool among them. In this sense, utility functions have been pointed as the main tool for enabling self-optimizing behaviour in such pools. The goal with that is to allow resources...
The opportunistic computing paradigm is extremely valuable to modern technical and scientific endeavors, as it can support the demand for large and steady amounts of computing capacity. The applications of opportunistic computing environments often require independent and intensive processing over different data sets, characterizing themselves as BoT applications. Opportunistic computing systems,...
The future generation of computer networks brings us several challenges. Automation is one of the most pursued functionalities for such networks. It means that research around this area goes toward the auto- and self- technologies such as self-management, self-addressing and self-healing. This paper presents a novel approach for self-addressing in dynamic networks. It is a stateful and distributed...
This paper deals with the reduction of energy consumption in large scale systems, especially by taking into account the impact of energy consumption for server consolidation. Decreasing the number of physical hosts used while ensuring a certain level of quality of services is the goal of our approach. We introduce a metric called energetic yield which represents the quality of a task placement on...
Next generation services are a trend that places emphasis on providing value-added services. This trend remains a challenge to telecommunication operators who in an effort to survive and remain relevant, now have to contend with managing their existing network-based services as well as their new application-based next generation services. A critical implication is that operation management systems,...
As the number of mobile users increases, and cell phones become more powerful, delivering multimedia content to them using a centralized infrastructure becomes both expensive and inadequate. Here we study an alternative solution, which leverages local dedicated caches on these devices to opportunistically fulfill other user requests, in a peer-to-peer manner. The problem we study is that of choosing...
There is a great surge of interest recently in the fixed-mobile convergence from the telecom industry. This is supported by strong 3G operator interest in using the broadband penetration as a spring board to achieve cost effective delivery of the multimedia data for indoor coverage. Statistics indicated that more than 70% of the calls are made from end-users in indoor environments. Based on this trend,...
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