boutin15@interspeech_2015@ISCA

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#1 Audio quotation marks for natural language understanding [PDF] [Copy] [Kimi2]

Authors: Simon Boutin ; Réal Tremblay ; Patrick Cardinal ; Doug Peters ; Pierre Dumouchel

Detecting the presence of quotations in speech is a difficult task for automatic natural language understanding. This paper presents a study on the correlation between three prosodic features present in a voice command and the presence or absence of quotations. These features consist of intra-word pause durations, F0 reset and F0 continuity. A combination of lexical and prosodic extraction tools was used to extract these features. The two-sample Kolmogorov-Smirnov test was then used to compare the distributions of the collected measures. The results show a correlation between these features and the presence or absence of quotations. Moreover, the results show that it is possible to use these features to differentiate direct from indirect quotations.