Error analysis applied to end-to end spoken language understanding - Archive ouverte HAL
Conference Papers Year : 2020

Error analysis applied to end-to end spoken language understanding

Abstract

This paper presents a qualitative study of errors produced by an end-to-end spoken language understanding (SLU) system (speech signal to concepts) that reaches state of the art performance. Different studies are proposed to better understand the weaknesses of such systems: comparison to a classical pipeline SLU system, a study on the cause of concept deletions (the most frequent error), observation of a problem in the capability of the end-to-end SLU system to segment correctly concepts, analysis of the system behavior to process unseen concept/value pairs, analysis of the benefit of the curriculum-based transfer learning approach. Last, we proposed a way to compute embeddings of sub-sequences that seem to contain relevant information for future work.
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Dates and versions

hal-02465899 , version 1 (04-02-2020)

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Antoine Caubrière, Sahar Ghannay, Natalia Tomashenko, Renato de Mori, Antoine Laurent, et al.. Error analysis applied to end-to end spoken language understanding. 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020), May 2020, Barcelona, Spain. pp.8514-8518, ⟨10.1109/ICASSP40776.2020.9054455⟩. ⟨hal-02465899⟩
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