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With an overwhelming number of web services online, recommending services for automatic mashup creation greatly facilitates the composition process of developers. Various approaches have been proposed for the task. However, these approaches concentrate on improving the recommending accuracy of an individual service, which give rise to two problems: (1) Top-ranked services may be highly redundant with...
Distributed learning over networks has become an active topic of research in the last decade. Adaptive networks are suitable for decentralized inference tasks, e.g., to monitor complex natural phenomena or infrastructure. Most of works focus on distributed estimation methods of linear regression models. However, there are many important applications that deal with nonlinear parametric models to be...
In cognitive radio networks, unlicensed users can use under-utilized licensed spectrum to achieve substantial performance improvement. To avoid interference with licensed users, unlicensed users must vacate the spectrum when it is accessed by licensed (primary) users. Since it takes some time for unlicensed users to switch to other available channels, the ongoing data transmissions may have to be...
Datebase courses are improtant component in the curriculum of college or department of computer science in the university. To setup the experimental environment, there are many schemes existed but most of them need to be done manualy with low efficiencies. In this paper, a fast scheme to backup and restore database using Oracle 10g as an example for steupping the experimental envrionment is proposed...
Piezo stack actuators have been widely adopted for the actuation of flexure hinge based micro-motion compliant mechanisms (or sometimes named stages). When fitting a Piezo stack actuators into a compliant mechanisms, normally no adhesive is applied but tightly fitted by pushing it into the slot (desired position). As the slot is normally designed to be slightly smaller than the Piezo stack actuator...
As an important nonlinear filter theory, the particle filter(PF) is a heated issue in domestic and foreign researches. The option of importance density and resampling are the key steps of particle filter algorithm. The application of UKF algorithm based on SSUT to create the importance probability density function(PDF), with the particle swarm optimization(PSO), can form a new algorithm of particle...
Batteries are widely used in quite a few areas, including in the electric auto industry. As the voltage of the batteries are ever-changing, which drops from a high value to a low value, kinds of regulators are utilized to keep the output voltage changing in an acceptable scope. However, the stress on switches produced by the currents in the circuits is much stronger than the capabilities of the switches,...
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