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Evaluating Topic Quality with Posterior Variability

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Figure

Figure 1: Two example topics and their distributions of µ, σ and cv from the NYT corpus
Table 2: Pearson’s r correlation with human judgments for metrics.
Table 3: Pearson’s r correlation with human judgmentsfor the topic quality estimator.
Figure 3:Scatter plots illustrating the correlation between human rating scores and the three metrics: NPMI,Variability and Supervised Estimator on three datasets: 20NG (top row), Wiki (middle row) and NYT (bottom row).The numerical Pearson’s r correlations are shown in the bottom-right corner.

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