Search results for "Time varying systems"

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Optimization of Long-Run Average-Flow Cost in Networks With Time-Varying Unknown Demand

2010

We consider continuous-time robust network flows with capacity constraints and unknown but bounded time-varying demand. The problem of interest is to design a control strategy off-line with no knowledge of the demand realization. Such a control strategy regulates the flow on-line as a function of the realized demand. We address both the case of systems without and with buffers. The main novelty in this work is that we consider a convex cost which is a function of the long-run average-flow and average-demand. We distinguish a worst-case scenario where the demand is the worst-one from a deterministic scenario where the demand has a neutral behavior. The resulting strategies are called min-max…

Flow control (data)Mathematical optimizationComputer scienceTime varying systemsFunction (mathematics)Optimal controlFlow networkMin-max optimalityAverage flow cost; Flow control; Gradient-based control; Min-max optimality; Uncertain demand; Time varying systems; Time varying networksComputer Science ApplicationsAverage flow costFlow controlControl and Systems EngineeringRobustness (computer science)Control theoryBounded functionProduction controlElectrical and Electronic EngineeringTime varying networksAverage flow cost flow control gradient-based control min-max optimality uncertain demandGradient-based controlAverage costUncertain demand
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Dynamic interface for machine vision systems

2002

Iconic programming intends to provide expressive tools to implement, to debug, and to execute programs. For this purpose, visual languages need pictorial constructs and metaphors to guide the design of algorithms in interactive fashion. In the paper a new class of dynamic visual interfaces, named DIVA (Dynamic Interface for Visual Applications), is introduced, its properties are described, and an application to visual compilers in a multi-processors system dedicated to image analysis is given. Moreover, a formal definition of dynamic icon (DI) is also given.

Parallel processing (psychology)Settore INF/01 - Informaticabusiness.industryMachine visionComputer scienceProgramming languagemedia_common.quotation_subjectMachine vision Humans Computer interfaces Time varying systems Computer science Algorithm design and analysis Image analysis Parallel processing Virtual reality Multimedia systemsVirtual realitycomputer.software_genreDebuggingComputer graphics (images)Algorithm designCompilerArtificial intelligenceIconbusinesscomputerGraphical user interfacecomputer.programming_languagemedia_commonProceedings of the 12th IAPR International Conference on Pattern Recognition (Cat. No.94CH3440-5)
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