Influence of transition cost in the segmentation stage of speaker diarization
| Beatriz Martínez-González, José M. Pardo, Rubén San-Segundo, J.M. Montero |
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In any speaker diarization system there is a segmentation phase and a clustering phase. Our system uses them in a single step in which segmentation and clustering are used iteratively until certain condition is met. In this paper we propose an improvement of the segmentation method that cancels a penalization that had been applied in previous works to any transition between speakers. We also study the performance when transitions between speakers are favoured instead of penalized. This last option achieves better results both for the development set (21.65 % relative speaker error improvement- SER) and for the test set (4.60% relative speaker error improvement
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