Literatura científica selecionada sobre o tema "Métriques de risque"
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Artigos de revistas sobre o assunto "Métriques de risque"
Haid, Sabrina. "Brèves de l’EULAR 2015 Polyarthrite rhumatoïde – hors traitement". Batna Journal of Medical Sciences (BJMS) 2, n.º 1 (15 de setembro de 2015): S4—S6. http://dx.doi.org/10.48087/bjms.2015.s213.
Texto completo da fonteBartikowski, Boris, Jean-Louis Chandon e Heribert Gierl. "Calibration internationale des échelles sémantiques". Décisions Marketing N° 43-44, n.º 3 (1 de agosto de 2006): 207–19. http://dx.doi.org/10.3917/dm.043.0207.
Texto completo da fonteLandau, Justine. "Au risque de la prose : une esthétique persane de la coordination". Histoire Épistémologie Langage 36, n.º 2 (2014): 97–110. http://dx.doi.org/10.3406/hel.2014.3499.
Texto completo da fonteFreiss, Daniel, e Lucas Boucaud. "La mesure d’impact : construction d’un objet commun entre capital-risqueur et entrepreneur ?" Innovations Pub. anticipées (17 de abril de 2026): I175—XXVIII. http://dx.doi.org/10.3917/inno.pr2.0175.
Texto completo da fonteBoucaud, Lucas, e Daniel Freiss. "La mesure d’impact : construction d’un objet commun entre capital-risqueur et entrepreneur ?" Innovations N° 75, n.º 3 (11 de outubro de 2024): 127–54. http://dx.doi.org/10.3917/inno.075.0127.
Texto completo da fonteTeses / dissertações sobre o assunto "Métriques de risque"
Rivoire, Manon. "Risk measures in finance, Backtesting, Sensitivity and Robustness". Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX042.
Texto completo da fonteIn Chapter 1, we focus on two time transformations: the time-translation and the time-scaling and on the related properties called the stationarity and the self-similarity. We prove the stationarity and self-similarity properties of the processes first in a the very general framework of the Hilbert spaces; then in a the more specific framework of the the Gaussian Hilbert space where the properties are proved in distribution (weak sense) and in a trajectory sense (strict sense). We also provide examples of such processes called standard Brownian motion and fractional Brownian motion (fBm), in the univariate and multivariate frameworks (mfBm). In Chapter 2, we propose to describe price trajectories using fractional geometric Brownian motions. This allows adding correlations between logarithmic returns to express long-range dependency. Logarithmic returns are then described using self-similar Gaussian processes with stationary and correlated increments, the fBm's and mfBm's. In this framework, risk measures that are based on the loss distribution, can then be accurately predicted taking into account the long-range dependency. We focus on predicting the most commonly used risk measure by regulators, called Value-at-Risk (VaR). We introduce a model that provides a Gaussian approximation of Value-at-Risk (VaR) for the assets portfolio under fractional dynamics (mfBm). We provide a quantification of the error of approximation and we carry out backtesting experiments on simulated and market data. In Chapter 3, we propose to model the loss distribution with a heavy-tailed distribution that better takes into account the extreme events, called the Pareto distribution that presents interesting properties of scaling and stability by conditioning and to replace VaR by Expected-Shortfall which is more sensitive to the tail risk. The objective is to explore non-asymptotic robust methods for estimating ES in heavy-tailed distributions such that the Median-of-Means, the Trimmed-Means, and the Lee-Valiant estimators that we compare to the empirical mean estimator (asymptotic). We study their bias and their convergence rate
Denis, Dieumet. "Contribution à la modélisation et à la commande de robots mobiles reconfigurables en milieu tout-terrain : application à la stabilité dynamique d'engins agricoles". Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22565/document.
Texto completo da fonteThis work is focused on the thematic of the maintenance of the dynamic stability of off-road vehicles. Indeed, driving vehicles in off-road environment remains a dangerous and harsh activity because of the variable and bad grip conditions associated to a large diversity of terrains. Driving difficulties may be also encountered when considering huge machines with possible reconfiguration of their mechanical properties (changes in mass and centre of gravity height for instance). As a consequence, for the sole agriculture sector, several fatal injuries are reported per year in particular due to rollover situations. Passive protections (ROllover Protective Structure - ROPS) are installed on tractors to reduce accident consequences. However, protection capabilities of these structures are very limited and the latter cannot be embedded on bigger machines due to mechanical design limitations. Furthermore, driving assistance systems (such as ESP or ABS) have been deeply studied for on-road vehicles and successfully improve safety. These systems usually assume that the vehicle Center of Gravity (CG) height is low and that the vehicles are operating on smooth and level terrain. Since these assumptions are not satisfied when considering off-road vehicles with a high CG, such devices cannot be applied directly. Consequently, this work proposes to address this research problem by studying relevant stability metrics able to evaluate in real time the rollover risk in order to develop active safety devices dedicated to off-road vehicles. In order to keep a feasible industrialization of the conceived active safety device, the use of compatible sensors with the cost of the machines was one of the major commercial and societal requirements of the project. The ambitious goal of this study was achieved by different routes. First, a multi-scale modeling approach allowed to characterize the dynamic evolution of off-road vehicles. This partial dynamic approach has offered the advantage of developing sufficiently accurate models to be representative of the actual behavior of the machine but having a relatively simple structure for high-performance control systems. Then, a comparative study of the advantages and drawbacks of the three main families of metrics found in the literature has helped to highlight the interest of dynamic stability metrics at the expense to categories of so-called static and empirical stability criteria. Finally, a thorough analysis of dynamic metrics has facilitated the choice of three indicators (Longitudinal and Lateral Load Transfer (LLT), Force Angle Stability Measurement (FASM) and Dynamic Energy Stability Measurement (DESM)) that are representative of an imminent rollover risk. The following of the document is based on the observation theory for estimating online of variables which are not directly measurable in off-road environment such as slip and cornering stiffnesses. Coupled to the dynamic models of the vehicle, the theory of observers has helped therefore to estimate in real time the tire-soil interaction forces which are necessaries for evaluating indicators of instability. The coupling of these multiscale models to the observation theory has formed an original positioning capable to break the complexity of the characterization of the stability of vehicles having complex and uncertain dynamics. (...)
St-Louis, Sophie. "L'Inventaire des risques et des besoins liés aux facteurs criminogènes (IRBC) : évaluation des propriétés métriques de l'instrument". Thèse, 2015. http://hdl.handle.net/1866/13770.
Texto completo da fonteThe Inventaire des risques et des besoins liés aux facteurs criminogènes (IRBC) is a test used since the early 1990s to assess young offenders’s risk of recidivism in Quebec. It is the product of a collaboration between Quebec and Ontario which occurred in the context of research work on instruments used to evaluate young offenders’s risk of recidivism. The IRBC is the only instrument specifically designed to assess the risk of recidivism of young offenders in Quebec and has never been subject of a predictive validity study. The aim of this master project is to test the predictive validity of the IRBC. ROC curves analysis and survival analysis were used to test the metric properties of the instrument. The results suggest that overall the IRBC is capable of predicting recidivism acceptably. Four of the eight domains associated with criminal recidivism, commonly called BIG FOUR, would be moderate predictors of recidivism when tested with data from the IRBC. These are Antécédents, Pairs, Personnalité-Comportements, and Attitudes-Tendances. However, aspects related to the fidelity of the instrument show irregularities in the assessment process, which questioned the rigor maintained daily by professionals. Aspects related to the fidelity of the IRBC would remain to be investigated.
Capítulos de livros sobre o assunto "Métriques de risque"
Jouzel, Jean-Noël. "9. De la critique à la métrique". In La mondialisation des risques, 155–68. Presses universitaires de Rennes, 2015. http://dx.doi.org/10.4000/books.pur.73376.
Texto completo da fonte