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_bibliography/in_production.bib

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@article{pishchagina2024,
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bibtex_show = {true},
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author = {Pishchagina, Liudmila and Rigaill, Guillem and Runge,
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Vincent},
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publisher = {French Statistical Society},
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title = {Geometric-Based {Pruning} {Rules} for {Change} {Point}
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{Detection} in {Multiple} {Independent} {Time} {Series}},
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journal = {Computo},
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year = 2024,
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url = {https://computo.sfds.asso.fr/published-202406-pishchagina-change-point/},
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doi = {10.57750/9vvx-eq57},
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issn = {2824-7795},
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type = {{Research article}},
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domain = {Statistics},
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language = {R},
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repository = {published-202406-pishchagina-change-point},
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langid = {en},
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abstract = {We address the challenge of identifying multiple change
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points in a group of independent time series, assuming these change
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points occur simultaneously in all series and their number is
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unknown. The search for the best segmentation can be expressed as a
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minimization problem over a given cost function. We focus on dynamic
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programming algorithms that solve this problem exactly. When the
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number of changes is proportional to data length, an
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inequality-based pruning rule encoded in the PELT algorithm leads to
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a linear time complexity. Another type of pruning, called functional
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pruning, gives a close-to-linear time complexity whatever the number
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of changes, but only for the analysis of univariate time series. We
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propose a few extensions of functional pruning for multiple
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independent time series based on the use of simple geometric shapes
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(balls and hyperrectangles). We focus on the Gaussian case, but some
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of our rules can be easily extended to the exponential family. In a
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simulation study we compare the computational efficiency of
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different geometric-based pruning rules. We show that for a small
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number of time series some of them ran significantly faster than
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inequality-based approaches in particular when the underlying number
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of changes is small compared to the data length.}
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}
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@article{legrand2024,
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bibtex_show = {true},
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author = {Legrand, Juliette and Pimont, François and Dupuy, Jean-Luc
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and Opitz, Thomas},
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publisher = {French Statistical Society},
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title = {Bayesian Spatiotemporal Modelling of Wildfire Occurrences and
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Sizes for Projections Under Climate Change},
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journal = {Computo},
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year = 2024,
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url = {https://computo.sfds.asso.fr/published-202407-legrand-wildfires/},
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doi = {10.57750/4y84-4t68},
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issn = {2824-7795},
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type = {{Research article}},
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domain = {Statistics},
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language = {R},
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repository = {published-202407-legrand-wildfires},
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langid = {en},
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abstract = {Appropriate spatiotemporal modelling of wildfire activity
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is crucial for its prediction and risk management. Here, we focus on
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wildfire risk in the Aquitaine region in the Southwest of France and
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its projection under climate change. We study whether wildfire risk
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could further increase under climate change in this specific region,
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which does not lie in the historical core area of wildfires in
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Southeastern France, corresponding to the Southwest. For this
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purpose, we consider a marked spatiotemporal point process, a
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flexible model for occurrences and magnitudes of such environmental
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risks, where the magnitudes are defined as the burnt areas. The
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model is first calibrated using 14 years of past observation data of
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wildfire occurrences and weather variables, and then applied for
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projection of climate-change impacts using simulations of numerical
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climate models until 2100 as new inputs. We work within the
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framework of a spatiotemporal Bayesian hierarchical model, and we
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present the workflow of its implementation for a large dataset at
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daily resolution for 8km-pixels using the INLA-SPDE approach. The
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assessment of the posterior distributions shows a satisfactory fit
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of the model for the observation period. We stochastically simulate
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projections of future wildfire activity by combining climate model
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output with posterior simulations of model parameters. Depending on
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climate models, spline-smoothed projections indicate low to moderate
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increase of wildfire activity under climate change. The increase is
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weaker than in the historical core area, which we attribute to
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different weather conditions (oceanic versus Mediterranean). Besides
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providing a relevant case study of environmental risk modelling,
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this paper is also intended to provide a full workflow for
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implementing the Bayesian estimation of marked log-Gaussian Cox
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processes using the R-INLA package of the R statistical software.}
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}

_bibliography/published.bib

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@article{legrand2024,
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bibtex_show = {true},
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author = {Legrand, Juliette and Pimont, François and Dupuy, Jean-Luc
4+
and Opitz, Thomas},
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publisher = {French Statistical Society},
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title = {Bayesian Spatiotemporal Modelling of Wildfire Occurrences and
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Sizes for Projections Under Climate Change},
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journal = {Computo},
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year = 2024,
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url = {https://computo.sfds.asso.fr/published-202407-legrand-wildfires/},
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doi = {10.57750/4y84-4t68},
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issn = {2824-7795},
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type = {{Research article}},
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domain = {Statistics},
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language = {R},
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repository = {published-202407-legrand-wildfires},
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langid = {en},
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abstract = {Appropriate spatiotemporal modelling of wildfire activity
19+
is crucial for its prediction and risk management. Here, we focus on
20+
wildfire risk in the Aquitaine region in the Southwest of France and
21+
its projection under climate change. We study whether wildfire risk
22+
could further increase under climate change in this specific region,
23+
which does not lie in the historical core area of wildfires in
24+
Southeastern France, corresponding to the Southwest. For this
25+
purpose, we consider a marked spatiotemporal point process, a
26+
flexible model for occurrences and magnitudes of such environmental
27+
risks, where the magnitudes are defined as the burnt areas. The
28+
model is first calibrated using 14 years of past observation data of
29+
wildfire occurrences and weather variables, and then applied for
30+
projection of climate-change impacts using simulations of numerical
31+
climate models until 2100 as new inputs. We work within the
32+
framework of a spatiotemporal Bayesian hierarchical model, and we
33+
present the workflow of its implementation for a large dataset at
34+
daily resolution for 8km-pixels using the INLA-SPDE approach. The
35+
assessment of the posterior distributions shows a satisfactory fit
36+
of the model for the observation period. We stochastically simulate
37+
projections of future wildfire activity by combining climate model
38+
output with posterior simulations of model parameters. Depending on
39+
climate models, spline-smoothed projections indicate low to moderate
40+
increase of wildfire activity under climate change. The increase is
41+
weaker than in the historical core area, which we attribute to
42+
different weather conditions (oceanic versus Mediterranean). Besides
43+
providing a relevant case study of environmental risk modelling,
44+
this paper is also intended to provide a full workflow for
45+
implementing the Bayesian estimation of marked log-Gaussian Cox
46+
processes using the R-INLA package of the R statistical software.}
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}
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@article{pishchagina2024,
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bibtex_show = {true},
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author = {Pishchagina, Liudmila and Rigaill, Guillem and Runge,
52+
Vincent},
53+
publisher = {French Statistical Society},
54+
title = {Geometric-Based {Pruning} {Rules} for {Change} {Point}
55+
{Detection} in {Multiple} {Independent} {Time} {Series}},
56+
journal = {Computo},
57+
year = 2024,
58+
url = {https://computo.sfds.asso.fr/published-202406-pishchagina-change-point/},
59+
doi = {10.57750/9vvx-eq57},
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issn = {2824-7795},
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type = {{Research article}},
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domain = {Statistics},
63+
language = {R},
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repository = {published-202406-pishchagina-change-point},
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langid = {en},
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abstract = {We address the challenge of identifying multiple change
67+
points in a group of independent time series, assuming these change
68+
points occur simultaneously in all series and their number is
69+
unknown. The search for the best segmentation can be expressed as a
70+
minimization problem over a given cost function. We focus on dynamic
71+
programming algorithms that solve this problem exactly. When the
72+
number of changes is proportional to data length, an
73+
inequality-based pruning rule encoded in the PELT algorithm leads to
74+
a linear time complexity. Another type of pruning, called functional
75+
pruning, gives a close-to-linear time complexity whatever the number
76+
of changes, but only for the analysis of univariate time series. We
77+
propose a few extensions of functional pruning for multiple
78+
independent time series based on the use of simple geometric shapes
79+
(balls and hyperrectangles). We focus on the Gaussian case, but some
80+
of our rules can be easily extended to the exponential family. In a
81+
simulation study we compare the computational efficiency of
82+
different geometric-based pruning rules. We show that for a small
83+
number of time series some of them ran significantly faster than
84+
inequality-based approaches in particular when the underlying number
85+
of changes is small compared to the data length.}
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}
87+
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@article{susmann_adaptive,
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bibtex_show = {true},
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author = {Susmann, Herbert and and Chambaz, Antoine and Josse, Julie},

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