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Stability problems for stochastic models: Theory and applications / Alexander Zeifman (2021)  

Public Titre : Stability problems for stochastic models: Theory and applications Type de document : Monographie Auteurs : Alexander Zeifman, Éditeur scientifique ; Victor Korolev, Éditeur scientifique ; Alexander Sipin, Auteur Editeur : Bâle [Suisse] : Multidisciplinary Digital Publishing Institute MDPI Année de publication : 2021 Importance : 370 p. Format : 17 x 25 cm ISBN/ISSN/EAN : 978-3-0365-0453-7 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Statistiques [Termes IGN] chaîne de Markov [Termes IGN] intégrale de Laplace [Termes IGN] modèle stochastique [Termes IGN] probabilités [Termes IGN] programmation stochastique [Termes IGN] variable aléatoire Résumé : (éditeur) The aim of this Special Issue of Mathematics is to commemorate the outstanding Russian mathematician Vladimir Zolotarev, whose 90th birthday will be celebrated on February 27th, 2021. The present Special Issue contains a collection of new papers by participants in sessions of the International Seminar on Stability Problems for Stochastic Models founded by Zolotarev. Along with research in probability distributions theory, limit theorems of probability theory, stochastic processes, mathematical statistics, and queuing theory, this collection contains papers dealing with applications of stochastic models in modeling of pension schemes, modeling of extreme precipitation, construction of statistical indicators of scientific publication importance, and other fields. Note de contenu : 1- A Generalized equilibrium transform with application to error boundsin the Renyi theorem with so support constraints 2- Approximations in performance analysis of a controllable queueing system with heterogeneous server 3- Accumulative pension schemes with various decrement factors 4- A priority queue with many customer types, correlated arrivals and changing priorities 5- Highly efficient robust and stable M-estimates of location 6- Local limit theorem for the multiple power series distributions 7- Multivariate scale-mixed stable distributions and related limit theorems 8- On convergence rates of some limits 9- Optimal filtering of Markov jump processes given observations with state-dependent noises: Exact solution and stable numerical schemes 10- On the fractional wave equation 11- Probability models and statistical tests for extreme precipitation based on generalized negative binomial distributions 12- Rates of convergence in Laplace’s integrals and sums and conditional central limit theorems 13- Sensitivity analysis and simulation of a multiserver queueing system with mixed tervice time distribution 14- Statistical indicators of the scientific publications importance: A stochastic model and critical look 15- Second order expansions for high-dimension low-sample-size data statistics in random setting 16- Two approaches to the construction of perturbation bounds for Ccontinuous-time Markov chains 17- The calculation of the density and distribution functions of strictly stable laws 18- Wavelet thresholding risk estimate for the model with random samples and correlated noise Numéro de notice : 28620 Affiliation des auteurs : non IGN Thématique : MATHEMATIQUE Nature : Recueil / ouvrage collectif DOI : 10.3390/books978-3-0365-0453-7 En ligne : https://doi.org/10.3390/books978-3-0365-0453-7 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99519

Climate sensitive single tree growth modeling using a hierarchical Bayes approach and integrated nested Laplace approximations (INLA) for a distributed lag model / Arne Nothdurft in Forest ecology and management, vol 478 ([15/12/2020])  

Public [article]  inForest ecology and management > vol 478 [15/12/2020] . - 14 p. Titre : Climate sensitive single tree growth modeling using a hierarchical Bayes approach and integrated nested Laplace approximations (INLA) for a distributed lag model Type de document : Article/Communication Auteurs : Arne Nothdurft, Auteur Année de publication : 2020 Article en page(s) : 14 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] approche hiérarchique [Termes IGN] Autriche [Termes IGN] bioclimatologie [Termes IGN] croissance des arbres [Termes IGN] dendrochronologie [Termes IGN] données météorologiques [Termes IGN] estimation bayesienne [Termes IGN] Fagus sylvatica [Termes IGN] intégrale de Laplace [Termes IGN] Larix decidua [Termes IGN] modèle de croissance végétale [Termes IGN] modèle de régression [Termes IGN] peuplement mélangé [Termes IGN] Picea abies [Termes IGN] Pinus sylvestris [Termes IGN] Quercus sessiliflora [Termes IGN] série temporelle [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) A novel methodological framework is presented for climate-sensitive modeling of annual radial stem increments using tree-ring width time series. The approach is based on a hierarchical Bayes model together with a distributed time lag model that take into account the effects of a series of monthly temperature and precipitation values, as well as their interactions. By using a set of random walk priors, the hierarchical Bayes model allows both the detrending of the individual time series and the regression modeling to be performed simultaneously in a single model step. The approach was applied to comprehensive tree-ring width data from Austria collected on sample plots arranged in triplets representing different mixture types. Bayesian predictions revealed that European larch (Larix decidua Mill.), Norway spruce (Picea abies (L.) H. Karst.), and Scots pine (Pinus sylvestris L.) show positive climate-related growth trends throughout higher elevation sites in Tyrol, and these trends remain unchanged under a mixed-stand scenario. At the lower Austrian sites, Norway spruce was found to show a severely negative growth trend under both the pure- and mixed-stand scenario. The increment rates of European beech (Fagus sylvatica L.) were found to have a negative climate-related trend in pure stands, and the trend diminished through an admixture of spruce or larch. The trends of European larch and sessile oak (Quercus petraea (Matt.) Liebl.) showed stationary behavior, irrespective of the mixture scenario. Scots pine data showed a positive trend at the lower elevation sites under both the pure- and mixed-stand scenario. These findings indicate that species mixing does not lower the climate-related increment fluctuations of beech, oak, pine, and spruce at lower elevation sites. Numéro de notice : A2020-625 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1016/j.foreco.2020.118497 Date de publication en ligne : 07/09/2020 En ligne : https://doi.org/10.1016/j.foreco.2020.118497 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96025 [article]

Use of Bayesian modeling to determine the effects of meteorological conditions, prescribed burn season, and tree characteristics on litterfall of pinus nigra and pinus pinaster stands / Juncal Espinosa in Forests, vol 11 n° 9 (September 2020)  

Public [article]  inForests > vol 11 n° 9 (September 2020) . - N° 1006 Titre : Use of Bayesian modeling to determine the effects of meteorological conditions, prescribed burn season, and tree characteristics on litterfall of pinus nigra and pinus pinaster stands Type de document : Article/Communication Auteurs : Juncal Espinosa, Auteur ; Óscar Rodríguez de Rivera, Auteur ; Javier Madrigal, Auteur ; et al., Auteur Année de publication : 2020 Article en page(s) : N° 1006 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] biomasse [Termes IGN] classification bayesienne [Termes IGN] données météorologiques [Termes IGN] Espagne [Termes IGN] estimation bayesienne [Termes IGN] incendie de forêt [Termes IGN] intégrale de Laplace [Termes IGN] modèle linéaire [Termes IGN] Pinus nigra [Termes IGN] Pinus pinaster [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) Research Highlights: Litterfall biomass after prescribed burning (PB) is significantly influenced by meteorological variables, stand characteristics, and the fire prescription. Some of the fire-adaptive traits of the species under study (Pinus nigra and Pinus pinaster) mitigate the effects of PB on litterfall biomass. The Bayesian approach, tested here for the first time, was shown to be useful for analyzing the complex combination of variables influencing the effect of PB on litterfall. Background and Objectives: The aims of the study focused on explaining the influence of meteorological conditions after PB on litterfall biomass, to explore the potential influence of stand characteristic and tree traits that influence fire protection, and to assess the influence of fire prescription and fire behavior. Materials and Methods: An experimental factorial design including three treatments (control, spring, and autumn burning), each with three replicates, was established at two experimental sites (N = 18; 50 × 50 m2 plots). The methodology of the International Co-operative Program on Assessment and Monitoring of Air Pollution Effects on Forests (ICP forests) was applied and a Bayesian approach was used to construct a generalized linear mixed model. Results: Litterfall was mainly affected by the meteorological variables and also by the type of stand and the treatment. The effects of minimum bark thickness and the height of the first live branch were random. The maximum scorch height was not high enough to affect the litterfall. Time during which the temperature exceeded 60 °C (cambium and bark) did not have an important effect. Conclusions: Our findings demonstrated that meteorological conditions were the most significant variables affecting litterfall biomass, with snowy and stormy days having important effects. Significant effects of stand characteristics (mixed and pure stand) and fire prescription regime (spring and autumn PB) were shown. The trees were completely protected by a combination of low-intensity PB and fire-adaptive tree traits, which prevent direct and indirect effects on litterfall. Identification of important variables can help to improve PB and reduce the vulnerability of stands managed by this method. Numéro de notice : A2020-753 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/f11091006 Date de publication en ligne : 18/09/2020 En ligne : https://doi.org/10.3390/f11091006 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=96433 [article]

Problème des deux corps - perturbations : notes de cours, 1. [Manuel] / J.L. Sagnier (1994)

Public Titre de série : Problème des deux corps - perturbations : notes de cours, 1 Titre : [Manuel] Type de document : Guide/Manuel Auteurs : J.L. Sagnier, Auteur Editeur : Paris, Meudon et Nançay : Observatoire de Paris Année de publication : 1994 Importance : 120 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Astronomie fondamentale [Termes IGN] cinétique [Termes IGN] intégrale de Laplace [Termes IGN] loi de Képler [Termes IGN] mécanique céleste [Termes IGN] mécanique de Hamilton [Termes IGN] problème des deux corps Index. décimale : 31.10 Astronomie fondamentale Numéro de notice : 54963A Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel de cours Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=48307

Voir aussi

• Problème des deux corps - perturbations : notes de cours, 2. Exercices / J.L. Sagnier (1994)

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
54963-01A	31.10	Livre	Centre de documentation	En réserve M-103	Disponible

Problème des deux corps - perturbations : notes de cours, 2. Exercices / J.L. Sagnier (1994)

Public Titre de série : Problème des deux corps - perturbations : notes de cours, 2 Titre : Exercices Type de document : Guide/Manuel Auteurs : J.L. Sagnier, Auteur Editeur : Paris, Meudon et Nançay : Observatoire de Paris Année de publication : 1994 Importance : 40 p. Format : 21 x 30 cm Langues : Français (fre) Descripteur : [Vedettes matières IGN] Astronomie fondamentale [Termes IGN] cinétique [Termes IGN] exercice [Termes IGN] intégrale de Laplace [Termes IGN] loi de Képler [Termes IGN] mécanique céleste [Termes IGN] mécanique de Hamilton [Termes IGN] problème des deux corps Index. décimale : 31.10 Astronomie fondamentale Numéro de notice : 54963B Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel de cours Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=48308

Voir aussi

• Problème des deux corps - perturbations : notes de cours, 1. [Manuel] / J.L. Sagnier (1994)

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
54963-01B	31.10	Livre	Centre de documentation	En réserve M-103	Disponible

Intrinsic geodesy / A. Marussi (1985)

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Les fondements de la mécanique céleste / Y. Thiry (1970)

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