55 research outputs found
Metodologias de identificação de padrões alimentares a posteriori em crianças brasileiras: revisão sistemática
Evaluation of the clastogenic action of benzene by oral administration with 2 cytogenetic techniques in mouse and Chinese hamster
Retropharyngeal abscess as a complication of oropharyngeal trauma in an 18-month-old child
Age-related changes in galanin- and calretinin-immunoreactive nerves of guinea-pig gallbladder
A developmental study of the localization of NADPH-diaphorase in the ganglionated plexus of the guinea-pig gallbladder
Predictors for routine admission to paediatric intensive care for post-supraglottoplasty laryngomalacia patients
Deep Multilayer Perceptron for Knowledge Extraction: Understanding the Gardon de Mialet Flash Floods Modeling
Issu de : ITISE 2019 - International Conference on Time Series and Forecasting, Granada, Spain, 25-27 September 2019International audienceFlash floods frequently hit Southern France and cause heavy damages and fatalities. To enhance persons and goods safety, official flood forecasting services in France need accurate information and efficient models to optimize their decisions and policy in crisis management. Their forecasting is a serious challenge as heavy rainfalls that cause such floods are very heterogeneous in time and space. Such phenomena are typically nonlinear and more complex than classical flood events. This analysis had led to consider complementary alternatives to enhance the management of such situations. For decades, artificial neural networks have been proved very efficient to model nonlinear phenomena, particularly rainfall-discharge relations in various types of basins. They are applied in this study with two main goals: first, modeling flash floods on the Gardon de Mialet basin (Southern France); second, extract internal information from the model by using the KnoX: knowledge extraction method to provide new ways to improve models. The first analysis shows that the kind of nonlinear predictor strongly influences the representation of information, e.g., the main influent variable (rainfall) is more important in the recurrent and static models than in the feed-forward one. For understanding “long-term” flash floods genesis, recurrent and static models appear thus as better candidates, despite their lower performance. Besides, the distribution of weights linking the exogenous variables to the first layer of neurons is consistent with the physical considerations about spatial distribution of rainfall and response time of the hydrological system
Evaluation of Chronic Rodent Bioassays and Ames Assay Tests as Accurate Models for Predicting Human Carcinogens
Etude de la toxicite de l'Ioxynil et de sa localisation tissulaire chez le Lapin
National audienc
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