We introduce the concept of "residual investigation" for program analysis. A residual investigation is a dynamic check installed as a result of running a static analysis that reports a possible program error...
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The emergence of high performance computing (HPC) platforms equipped with solid state drives (SSD) presents an opportunity to dramatically increase the efficiency of out-of-core numerical linear algebra computations. ...
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The Myth: Sixty years of research following Shannon's pioneering paper has led to telecommunications solutions operating arbitrarily close to the channel capacityflawless telepresence with zero error is available ...
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A recently developed control scheme for approximately optimal control of nonlinear systems is the so-called Convex Control Design (ConvCD) methodology, that transforms the control problem of generic nonlinear systems ...
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ISBN:
(纸本)9781457710957
A recently developed control scheme for approximately optimal control of nonlinear systems is the so-called Convex Control Design (ConvCD) methodology, that transforms the control problem of generic nonlinear systems into a convex optimization problem. The ConvCD approach constructs a polynomial controller approximating the optimal control law: such design does not provide a scalable controller as it requires the use of a polynomial controller, which is not scalable, especially in large-scale applications. This problem is overcome in this paper by modifying the ConvCD formulation so that the optimal control law is approximated with a Multi-Controller with Mixing: that is, the polynomial controller is substituted by linear control elements plus mixing signals that are responsible for smoothly switching from one linear element to another. The stability properties of the Multi-Controller with Mixing are analyzed and an iterative approach is proposed to solve the resulting optimization problem. The resulting procedure aims at the development of a scalable and modular architecture for nonlinear systems, in order to allow for easier implementation and re-configurability. A numerical example is used to show the effectiveness of the method.
Mobile pervasive healthcare technologies can support a wide range of applications and services including patient monitoring and emergency response. At the same time they introduce several challenges, like data storage...
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Scheduling, in many application domains, involves optimization of multiple performance metrics. For example, application workflows with real-time constraints have strict throughput requirements and also desire a low l...
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In this work we build the first BI-RADS parser for Portuguese free texts, modeled after existing approaches to extract BI-RADS features from English medical records. Our concept finder uses a semantic grammar based on...
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We present a perspective on parser evaluation in a context where the goal of parsing is to extract meaning from a sentence. Using this perspective, we show why current parser evaluation metrics are not suitable for ev...
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The MTDL 2011 workshop in its third edition aims to continue in the contribution and evaluation of the impact of multimedia technologies to e-Learning. This workshop is held in conjunction with the ACM Multimedia 2011...
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We present Mint, a programming model that enables the non-expert to enjoy the performance benefits of hand coded CUDA without becoming entangled in the details. Mint targets stencil methods, which are an important cla...
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