Browsing by Subject "Spatio temporal"
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Item Open Access Geometric parametric instability of femtosecond pulses in graded-index multimode fiber(Optical Society of America, 2017) Teğin, Ugur; Ortaç, BülendWe numerically and experimentally study the spatio-temporal femtosecond pulse evolution in graded-index multimode fiber at normal dispersion regime. We report the first demonstration of geometric parametric instability sidebands generation with ultrashort pulses in the literature.Item Open Access Scalable linkage across location enhanced services(CEUR-WS, 2017-08) Basık, FuatIn this work, we investigate methods for merging spatio-temporal usage and entity records across two location-enhanced services, even when the datasets are semantically different. To address both effectiveness and efficiency, we study this linkage problem in two parts: model and framework. First we discuss models, including κ-l diversity- a concept we developed to capture both spatial and temporal diversity aspects of the linkage, and probabilistic linkage. Second, we aim to develop a framework that brings efficient computation and parallelization support for both models of linkage.