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Reichel, Uwe D. (2013): From segmentation bootstrapping to transcription-to-word conversion. Interspeech, 25. - 29. August 2013, Lyon.




The mapping of a raw phonetic transcription to an orthographic word sequence is carried out in three steps: First, a syllable segmentation of the transcription is bootstrapped, based on unsupervised subtractive learning. Then, the syllables are grouped to word entities guided by non-linguistic distributional properties. Finally, the phonetic word segmentations are mapped onto entries of a canonic pronunciation dictionary by means of a co-occurrence based aligner. For syllable segmentation accuracies between 89 and 96% are obtained, and for word segmentation accuracies between 92 and 98%. The transcription to word conversion performance amounts 77%.