12th Annual Conference of the International Speech Communication Association

Florence, Italy
August 27-31. 2011

Characterizing Deletion Transformations Across Dialects Using a Sophisticated Tying Mechanism

Nancy F. Chen (1), Wade Shen (2), Joseph P. Campbell (2)

(1) MIT, USA
(2) MIT Lincoln Laboratory, USA

In this work, we propose extensions of our Phone-based Pronunciation Model (PPM) for analyzing dialect differences. We compared these systems using 3 metrics and 2 datasets of English. Empirical results suggest that (1) sophisticated tying is suitable in modeling deletion transformations across dialects, beating standard tying by 33% relative, and (2) APM (Acoustic-based Pronunciation Model) improves performance in generating dialect-specific pronunciations, dialect identification and rule retrieval, achieving relative gains beyond 34%.

Full Paper

Bibliographic reference.  Chen, Nancy F. / Shen, Wade / Campbell, Joseph P. (2011): "Characterizing deletion transformations across dialects using a sophisticated tying mechanism", In INTERSPEECH-2011, 741-744.