As cloud services proliferate, it becomes difficult to facilitate service composition and testing in clouds. In traditional service-oriented computing, service composition and testing are carried out independently. Th...
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ISBN:
(纸本)9780769543499
As cloud services proliferate, it becomes difficult to facilitate service composition and testing in clouds. In traditional service-oriented computing, service composition and testing are carried out independently. This paper proposes a new approach to manage services on the cloud so that it can facilitate service composition and testing. The paper uses service implementation selection to facilitate service composition similar to Google's Guice and Spring tools, and apply the group testing technique to identify the oracle, and use the established oracle to perform continuous testing for new services or compositions. The paper extends the existing concept of template based service composition and focus on testing the same workflow of service composition. In addition, all these testing processes can be executed in parallel, and the paper illustrates how to apply service-level MapReduce [1] technique to accelerate the testing process.
In a tupical cloud environment, services wait to serve users' request. If a service receives more requests than it can handle, it needs to acquire additional resources. This paper proposes a new service replicatio...
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ISBN:
(纸本)9780769543499
In a tupical cloud environment, services wait to serve users' request. If a service receives more requests than it can handle, it needs to acquire additional resources. This paper proposes a new service replications that allows a cloud to adjust its service instance deployments in response to existing and projected service request loads. This approach is called Service-Level MapReduce (SLMR) because itis based on MapReduce, a parallel processing mechanism commonly used in cloud environments such as GAE (Google App Engin. SLMRincludes dynamic service replication and pre-deployed service replication. Furthermore, a passive SLMR approach that depends on the cloud management service (CMS) and an active SLMR approach that does not need the support from CMS will be introduced.
The performance of a service's QoS may evolve relatively frequently with its internal changes or the changes of dynamic Internet environment, especially when some "intentional" deceptions are taken into ...
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This paper proposes a novel face recognition algorithm inspired by the selective attention of Human Visual system (HVS). We record four observers' eye movements when they are viewing 100 FRGC [1] frontal view face...
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Dielectric response and space charge behaviour of oil-paper insulation sample with different moisture contents were investigated using the frequency dielectric spectroscopy (FDS) and the pulsed electroacoustic (PEA) t...
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Dielectric response and space charge behaviour of oil-paper insulation sample with different moisture contents were investigated using the frequency dielectric spectroscopy (FDS) and the pulsed electroacoustic (PEA) technique, respectively. The influence of moisture on the dielectric response and space charge behaviour of oil impregnated paper insulation was analysed. Results show that the moisture has great effect on the FDS and space charge behaviour of oil impregnated paper insulation. In the frequency range of 10 -2∼106Hz, the conductivity and the capacitance of oil impregnated paper increases with its moisture content. The space charge distribution of oil-paper sample with lower and higher moisture contents is very different from each other. The higher the moisture concentration of the oil impregnated paper, the easier the negative charge penetration into the insulation paper. There is a significant amount of positive charge accumulated at the paper-paper interface near to the cathode for oilpaper sample with lower moisture content. However, the positive charge appears in the middle layer paper for oil-paper sample with higher moisture content. Due to the high conductivity, the charge trapped in the oil-paper sample with higher moisture content disappears much faster than that in the oil-paper sample with lower moisture content after removing the voltage.
We present a fast collision detection method for deformable surfaces with parallel spatial hashing on GPU architecture. The efficient update and access of the uniform grid are exploited to accelerate the performance i...
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Summary form only given. Although Multi-touch devices have become common in the consumer world, users have sacrificed the tactile feedback afforded by physical buttons. The Bristol Interaction and Graphics group has b...
Summary form only given. Although Multi-touch devices have become common in the consumer world, users have sacrificed the tactile feedback afforded by physical buttons. The Bristol Interaction and Graphics group has been exploring various technical solutions to create the next generation of touch interfaces that support multi-point haptic feedback as well as dynamic allocation of views to different users. In this talk I will present UltraHaptics a multi-point haptic feedback system that allows users to experience haptic feedback simultaneously in multiple locations on an interactive surface. This feedback is created in midair - so users don't have to touch or hold any device to experience it. Another system I will be talking about it PiVOT, a tabletop system where users can come together and view shared content or by leaning forward can get personalised views that are only visible from their particular view-point. This talk will present our recent research endeavors in this direction and present some design challenges.
Recently, Gutiérrez-Naranjo and Leporati considered performing basic arithmetic operations on a new class of bioinspired computing devices - spiking neural P systems (for short, SN P systems). However, the binary...
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The limitation of the existing methods of traffic data collection is that they rely on techniques that are strictly local in nature. The airborne system in unmanned aircrafts provides the advantages of wider view angl...
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