Topic Stability over Noisy Sources

2015-08-05 · WS 2016 12 · Jing Su, Oisín Boydell, Derek Greene, Gerard Lynch

Topic modelling techniques such as LDA have recently been applied to speech transcripts and OCR output. These corpora may contain noisy or erroneous texts which may undermine topic stability. Therefore, it is important to know how well a topic modelling algorithm will perform when applied to noisy data. In this paper we show that different types of textual noise will have diverse effects on the stability of different topic models. From these observations, we propose guidelines for text corpus generation, with a focus on automatic speech transcription. We also suggest topic model selection methods for noisy corpora.

📄 PDF Abstract BibTeX arXiv:1508.01067

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Tasks

Model SelectionOptical Character Recognition (OCR)Topic Models

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