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See detailDrift parameter estimation for fractional Ornstein–Uhlenbeck process of the second kind
Azmoodeh, Ehsan UL; Morlanes, Jose Igor

in Statistics: A Journal of Theoretical and Applied Statistics (2013)

The fractional Ornstein–Uhlenbeck process of the second kind (fOU2) is the solution of the Langevin equation with driving noise where B is a fractional Brownian motion with Hurst parameter H(0, 1). In ... [more ▼]

The fractional Ornstein–Uhlenbeck process of the second kind (fOU2) is the solution of the Langevin equation with driving noise where B is a fractional Brownian motion with Hurst parameter H(0, 1). In this article, in the case H>½, we prove that the least-squares estimator introduced in [Hu Y, Nualart D. Parameter estimation for fractional Ornstein–Uhlenbeck processes. Stat. Probab. Lett. 2010;80(11–12):1030–1038], provides a consistent estimator. Moreover, using central limit theorem for multiple Wiener integrals, we prove asymptotic normality of the estimator valid for the whole range H(½, 1). [less ▲]

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See detailA drifting GPS buoy for retrieving effective riverbed bathymetry
Hostache, R.; Matgen, P.; Giustarini, L. et al

in Journal of Hydrology (2014), (0), -

Spatially distributed riverbed bathymetry information are rarely available but mandatory for accurate hydrodynamic modeling. This study aims at evaluating the potential of the Global Navigation Satellite ... [more ▼]

Spatially distributed riverbed bathymetry information are rarely available but mandatory for accurate hydrodynamic modeling. This study aims at evaluating the potential of the Global Navigation Satellite System (GNSS), like for instance Global Positioning System (GPS), for retrieving such data. Drifting buoys equipped with navigation systems such as GPS enable the quasi-continuous measurement of water surface elevation, from virtually any point in the world. The present study investigates the potential of assimilating GNSS-derived water surface elevation measurements into hydraulic models in order to retrieve effective riverbed bathymetry. First tests with a GPS dual-frequency receiver show that the root mean squared error (RMSE) on the elevation measurement equals 30 cm provided that a differential post processing is performed. Next, synthetic observations of a drifting buoy were generated assuming a 30 cm average error of Water Surface Elevation (WSE) measurements. By assimilating the synthetic observation into a 1D-Hydrodynamic model, we show that the riverbed bathymetry can be retrieved with an accuracy of 36 cm. Moreover, the WSEs simulated by the hydrodynamic model using the retrieved bathymetry are in good agreement with the synthetic ‘‘truth’’, exhibiting an RMSE of 27 cm. [less ▲]

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See detailDrittstaaten im Finanzmarktrecht – Überlegungen zum Brexit
Zetzsche, Dirk Andreas UL

in Zetzsche, Dirk Andreas; Lehmann, Mathias (Eds.) Grenzüberschreitende Finanzdienstleistungen (2018)

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See detail„Drittstaaten“ im Europäischen Bank- und Finanzmarktrecht
Zetzsche, Dirk Andreas UL

in Bachmann, G.; Breig, B. (Eds.) Finanzmarktregulierung zwischen Innovation und Kontinuität (2014)

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See detailDie Drittwirkung des Sicherungsvertrags beim Immobiliarkredithandel
Zetzsche, Dirk Andreas UL

in Archiv für die civilistische Praxis (2009), 209. Band, Heft 3/4

Detailed reference viewed: 116 (5 UL)
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See detailThe Drive to Society in Kant's Philosophy of Biology
Heidemann, Dietmar UL

in Kisner, Manja (Ed.) The Concept of Drive in Classical German Philosophy: Between Biology, Anthropology and Metaphysics (2021)

Detailed reference viewed: 87 (0 UL)
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See detailDriven probe under harmonic confinement in a colloidal bath
Demery, Vincent; Fodor, Etienne UL

in Journal of Statistical Mechanics: Theory and Experiment (2019)

Colloids held by optical or magnetic tweezers have been used to explore the local rheological properties of a complex medium and to extract work from fluctuations with some appropriate protocols. However ... [more ▼]

Colloids held by optical or magnetic tweezers have been used to explore the local rheological properties of a complex medium and to extract work from fluctuations with some appropriate protocols. However, a general theoretical understanding of the interplay between the confinement and the interaction with the environment is still lacking. Here, we explore the statistical properties of the position of a probe confined in a harmonic trap moving at constant velocity and interacting with a bath of colloidal particles maintained at a different temperature. Interactions among particles are accounted for by a systematic perturbation, whose range of validity is tested against direct simulations of the full dynamics. Overall, our results provide a way to predict the effect of the driving and the environment on the probe, and can potentially be used to investigate the properties of colloidal heat engines with many-body interactions. [less ▲]

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See detailDriver Behavior Profiling using Smartphones
Castignani, German UL; Frank, Raphaël UL; Engel, Thomas UL

in Driver Behavior Profiling using Smartphones (2013, October)

The proliferation of smartphones and mobile devices embedding different types of sensors sets up a prodigious and distributed sensing platform. In particular, in the last years there has been an ... [more ▼]

The proliferation of smartphones and mobile devices embedding different types of sensors sets up a prodigious and distributed sensing platform. In particular, in the last years there has been an increasing necessity to monitor drivers to identify bad driving habits in order to optimize fuel consumption, to reduce CO2 emissions or, indeed, to design new reliable and fair pricing schemes for the insurance market. In this paper, we analyze the driver sensing capacity of smartphones. We propose a mobile tool that makes use of the most common sensors embedded in current smartphones and implement a Fuzzy Inference System that scores the overall driving behavior by combining different fuzzy sensing data. [less ▲]

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See detailDriver Behavior Profiling Using Smartphones: A Low-Cost Platform for Driver Monitoring
Castignani, German UL; Derrmann, Thierry UL; Frank, Raphaël UL et al

in IEEE Intelligent Transportation Systems Magazine (2015), 7(1), 91-102

Today's smartphones and mobile devices typically embed advanced motion sensors. Due to their increasing market penetration, there is a potential for the development of distributed sensing platforms. In ... [more ▼]

Today's smartphones and mobile devices typically embed advanced motion sensors. Due to their increasing market penetration, there is a potential for the development of distributed sensing platforms. In particular, over the last few years there has been an increasing interest in monitoring vehicles and driving data, aiming to identify risky driving maneuvers and to improve driver efficiency. Such a driver profiling system can be useful in fleet management, insurance premium adjustment, fuel consumption optimization or CO2 emission reduction. In this paper, we analyze how smartphone sensors can be used to identify driving maneuvers and propose SenseFleet, a driver profile platform that is able to detect risky driving events independently from the mobile device and vehicle. A fuzzy system is used to compute a score for the different drivers using real-time context information like route topology or weather conditions. To validate our platform, we present an evaluation study considering multiple drivers along a predefined path. The results show that our platform is able to accurately detect risky driving events and provide a representative score for each individual driver. [less ▲]

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See detailDriver diaries: a multimodal mobility behaviour logging methodology
Kracheel, Martin UL; McCall, Roderick UL; Koenig, Vincent UL et al

in Proceedings of the 5th International Conference on Automotive User Interfaces and Interactive Vehicular Applications (2013, October)

Detailed reference viewed: 193 (13 UL)
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See detailDrivers of SMEs coopetition and their evolution
Granata, Julien; Geraudel, Mickaël UL; Nicolosi, Alessandro

Scientific Conference (2015)

While the literature on coopetitive strategies is expanding, the topic of the drivers of coopetition has received little attention. However, understanding the drivers of coopetition is a key issue for ... [more ▼]

While the literature on coopetitive strategies is expanding, the topic of the drivers of coopetition has received little attention. However, understanding the drivers of coopetition is a key issue for practitioners in charge of the implementation of the coopetition process. Addressing this gap in the literature, we explore the drivers of SMEs coopetition in a French wine industry area: Pic-Saint-Loup. Our findings reveal that the drivers of coopetition are evolving and are determined by the environmental context and the centrality of the actors. [less ▲]

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See detailDriving missing data at next-to-leading order
Bern, Zvi; Diana, Giovanni UL; Dixon, L. J. et al

in Physical Review D (2011), 84(11), 114002

The prediction of backgrounds to new-physics signals in topologies with large missing transverse energy and jets is important to new-physics searches at the LHC. Following a CMS study, we investigate ... [more ▼]

The prediction of backgrounds to new-physics signals in topologies with large missing transverse energy and jets is important to new-physics searches at the LHC. Following a CMS study, we investigate theoretical issues in using measurements of γ+2-jet production to predict the irreducible background to searches for missing energy plus two jets that originates from Z+2-jet production where the Z boson decays to neutrinos. We compute ratios of γ+2-jet to Z+2-jet production cross sections and kinematic distributions at next-to-leading order in αs, as well as using a parton shower matched to leading-order matrix elements. The former ratios rely on the first next-to-leading-order calculation of γ+2-jet production at a hadron collider. We find that the ratios obtained in the two approximations are quite similar, making γ+2-jet production a theoretically reliable estimator for the missing energy plus two jets background. We employ a Frixione-style photon isolation, but we also show that for isolated prompt-photon production at high transverse momentum the difference between this criterion and the standard-cone isolation used by CMS is small. [less ▲]

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See detailDriving while using a smartphone-based mobility application: Evaluating the impact of three multi-choice user interfaces on visual-manual distraction
Louveton, Nicolas UL; Mccall, Roderick UL; Koenig, Vincent UL et al

in Applied Ergonomics (2016), 54

Innovative in-car applications provided on smartphones can deliver real-time alternative mobility choices and subsequently generate visual-manual demand. Prior studies have found that multi-touch gestures ... [more ▼]

Innovative in-car applications provided on smartphones can deliver real-time alternative mobility choices and subsequently generate visual-manual demand. Prior studies have found that multi-touch gestures such as kinetic scrolling are problematic in this respect. In this study we evaluate three prototype tasks which can be found in common mobile interaction use-cases. In a repeated-measures design, 29 participants interacted with the prototypes in a car-following task within a driving simulator environment. Task completion, driving performance and eye gaze have been analysed. We found that the slider widget used in the filtering task was too demanding and led to poor performance, while kinetic scrolling generated a comparable amount of visual distraction despite it requiring a lower degree of finger pointing accuracy. We discuss how to improve continuous list browsing in a dual-task context. [less ▲]

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See detailDroidRA: Taming Reflection to Support Whole-Program Analysis of Android Apps
Li, Li UL; Bissyande, Tegawendé François D Assise UL; Octeau, Damien et al

in The 2016 International Symposium on Software Testing and Analysis (2016, July)

Android developers heavily use reflection in their apps for legitimate reasons, but also significantly for hiding malicious actions. Unfortunately, current state-of-the-art static analysis tools for ... [more ▼]

Android developers heavily use reflection in their apps for legitimate reasons, but also significantly for hiding malicious actions. Unfortunately, current state-of-the-art static analysis tools for Android are challenged by the presence of reflective calls which they usually ignore. Thus, the results of their security analysis, e.g., for private data leaks, are inconsistent given the measures taken by malware writers to elude static detection. We propose the DroidRA instrumentation-based approach to address this issue in a non-invasive way. With DroidRA, we reduce the resolution of reflective calls to a composite constant propagation problem. We leverage the COAL solver to infer the values of reflection targets and app, and we eventually instrument this app to include the corresponding traditional Java call for each reflective call. Our approach allows to boost an app so that it can be immediately analyzable, including by such static analyzers that were not reflection-aware. We evaluate DroidRA on benchmark apps as well as on real-world apps, and demonstrate that it can allow state-of-the-art tools to provide more sound and complete analysis results. [less ▲]

Detailed reference viewed: 226 (6 UL)
See detailLe droit : un système social / Law as a Social System
Sosoe, Lukas UL

Book published by Olms Verlag (2015)

Detailed reference viewed: 77 (1 UL)
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See detailLe droit à la sauce piquante n°1 - La Lettre d’Information juridique de l’économie sociale et solidaire
Hiez, David UL; Laurent, Rémi

in Le droit à la sauce piquante (2016), 1

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See detailLe droit à la sauce piquante N°10 – août 2017
Hiez, David UL; Laurent, Rémi

in Le droit à la sauce piquante (2017), 10

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See detailLe droit à la sauce piquante N°11 – décembre 2017
Hiez, David UL; Laurent, Rémi

in Le droit à la sauce piquante (2017), 11

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See detailLe droit à la sauce piquante N°12 – mars 2018
Hiez, David UL; Laurent, Rémi

in Le droit à la sauce piquante N°12 (2018), 12

Detailed reference viewed: 22 (0 UL)