rapport : raccourcissement taille page
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3 changed files with 23 additions and 21 deletions
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@ -6,13 +6,13 @@ For this purpose we generate collections of networks with the following
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parameters:
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\begin{align*}
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\bm{\pi}^m = \begin{cases}
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\bm{\pi} = \left( 0.5, 0.3, 0.2 \right) & \text{for } iid\text{-colBiSBM} \\
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\sigma_1^m(\bm{\pi}) & \text{for } \pi\text{-colBiSBM} \text{ and } \pi\rho\text{-colBiSBM}
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\end{cases} \\
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\bm{\pi} = \left( 0.5, 0.3, 0.2 \right) & \text{for } iid \\
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\sigma_1^m(\bm{\pi}) & \text{for } \pi \text{ and } \pi\rho
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\end{cases}, &
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\bm{\rho}^m =
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\begin{cases}
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\bm{\rho} = \left( 0.5, 0.3, 0.2 \right) & \text{for } iid\text{-colBiSBM} \\
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\sigma_2^m(\bm{\rho}) & \text{for } \rho\text{-colBiSBM} \text{ and } \pi\rho\text{-colBiSBM},
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\bm{\rho} = \left( 0.5, 0.3, 0.2 \right) & \text{for } iid \\
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\sigma_2^m(\bm{\rho}) & \text{for } \rho \text{ and } \pi\rho,
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\end{cases}
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\end{align*}
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for the block proportions, and two different structures with the corresponding
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@ -105,5 +105,5 @@ $\pi\rho$ present smaller values and larger variances.
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An explanation for the cases in which our models return lower values than
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expected could be to look for in our simulation parameters. They may, combined
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with the $\rho$ model be a difficult case for the estimation.
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As we currently do not have identifiability results this is just and
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As we currently do not have identifiability results this is just an
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hypothesis.
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@ -10,13 +10,13 @@ $\bm{\pi}^1 = \left( 0.2, 0.3, 0.5 \right),
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~\bm{\rho}^1 = \left( 0.2, 0.3, 0.5 \right)$ and for all $m = 2,\dots,9$
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\begin{align*}
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\bm{\pi}^m = \begin{cases}
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\bm{\pi}^1 & \text{for } iid\text{-colBiSBM} \\
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\sigma_1^m(\bm{\pi}^1) & \text{for } \pi\text{-colBiSBM} \text{ and } \pi\rho\text{-colBiSBM}
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\end{cases} \\
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\bm{\pi}^1 & \text{for } iid \\
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\sigma_1^m(\bm{\pi}^1) & \text{for } \pi \text{ and } \pi\rho
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\end{cases},~ &
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\bm{\rho}^m =
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\begin{cases}
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\bm{\rho}^1 & \text{for } iid\text{-colBiSBM} \\
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\sigma_2^m(\bm{\rho}^1) & \text{for } \rho\text{-colBiSBM} \text{ and } \pi\rho\text{-colBiSBM}
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\bm{\rho}^1 & \text{for } iid \\
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\sigma_2^m(\bm{\rho}^1) & \text{for } \rho \text{ and } \pi\rho
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\end{cases}
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\end{align*}
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where $\sigma_1^m$ and $\sigma_2^m$ are permutations of \{1, 2, 3\} proper to network $m$ and
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@ -35,7 +35,7 @@ parameters as follows:
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- \frac{\epsilon}{2} & \epsilon & \epsilon \\
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\epsilon & - \frac{\epsilon}{2} & \epsilon \\
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\epsilon & \epsilon & - \frac{\epsilon}{2}
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\end{pmatrix}, \\
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\end{pmatrix},
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& \bm{\alpha}^{cp} = .3 + \begin{pmatrix}
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\frac{3 \epsilon}{2} & \epsilon & \frac{\epsilon}{2} \\
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\epsilon & \frac{\epsilon}{2} & 0 \\
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@ -51,17 +51,19 @@ connections between blocks than within blocks. If $\epsilon = 0$, the three
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matrices are equal and the 9 networks have the same connection structure.
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Increasing $\epsilon$ differentiates the 3 sub-collections of networks.
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% ARI boxplot
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\begin{figure}[!ht]
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\centering
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\includestandalone{tikz/simulations/clustering/ari-clustering.tex}
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\caption{ARI obtained for the clustering with the different models in
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function of $\epsilon$}
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\label{fig:ari-clustering-boxplot}
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\end{figure}
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\paragraph{Results} The evaluation of our method involves a comparison between
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the resulting partition of the network collection and the simulated partition
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using the ARI index. As the value of $\epsilon$ increases, our ability to
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distinguish between the networks improves, and this distinction becomes nearly
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perfect in all setups of the colBiSBM.
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perfect in all setups of the colBiSBM.
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% ARI boxplot
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\begin{figure}[!hb]
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\centering
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\includestandalone[height=0.25\textheight]{tikz/simulations/clustering/ari-clustering.tex}
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\caption{ARI obtained for the clustering with the different models in
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function of $\epsilon$}
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\label{fig:ari-clustering-boxplot}
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\end{figure}
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