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of 116
pro vyhledávání: '"Donnet, Sophie"'
Autor:
Chabert-Liddell, Saint-Clair, Bez, Nicolas, Gloaguen, Pierre, Donnet, Sophie, Mahévas, Stéphanie
We propose an innovative and generic methodology to analyse individual and collective behaviour through individual trajectory data. The work is motivated by the analysis of GPS trajectories of fishing vessels collected from regulatory tracking data i
Externí odkaz:
http://arxiv.org/abs/2312.00456
We consider a broad class of random bipartite networks, the distribution of which is invariant under permutation within each type of nodes. We are interested in $U$-statistics defined on the adjacency matrix of such a network, for which we define a n
Externí odkaz:
http://arxiv.org/abs/2308.14518
Publikováno v:
Ann. Appl. Statist. 18-2 (2024) 1213-1235
Let a collection of networks represent interactions within several (social or ecological) systems. We pursue two objectives: identifying similarities in the topological structures that are held in common between the networks and clustering the collec
Externí odkaz:
http://arxiv.org/abs/2206.00560
The robustness of an ecological network quantifies the resilience of the ecosystem it represents to species loss. It corresponds to the proportion of species that are disconnected from the rest of the network when extinctions occur sequentially. Clas
Externí odkaz:
http://arxiv.org/abs/2106.06348
Autor:
Labeyrie, Vanesse, Friedman, Rachel S., Donnet, Sophie, Faye, Ndeye Fatou, Cobelli, Océane, Baggio, Jacopo, Felipe-Lucia, María R., Raimond, Christine
Publikováno v:
In Agricultural Systems October 2023 211
A multilevel network is defined as the junction of two interaction networks, one level representing the interactions between individuals and the other the interactions between organizations. The levels are linked by an affiliation relationship, each
Externí odkaz:
http://arxiv.org/abs/1910.10512
Autor:
Donnet, Sophie, Robin, Stéphane
This work is motivated by the analysis of ecological interaction networks. Poisson stochastic blockmodels are widely used in this field to decipher the structure that underlies a weighted network, while accounting for covariate effects. Efficient alg
Externí odkaz:
http://arxiv.org/abs/1907.09771
Akademický článek
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Modeling relations between individuals is a classical question in social sciences, ecology, etc. In order to uncover a latent structure in the data, a popular approach consists in clustering individuals according to the observed patterns of interacti
Externí odkaz:
http://arxiv.org/abs/1807.10138
This paper studies nonparametric estimation of parameters of multivariate Hawkes processes. We consider the Bayesian setting and derive posterior concentration rates. First rates are derived for L1-metrics for stochastic intensities of the Hawkes pro
Externí odkaz:
http://arxiv.org/abs/1802.05975