Decay-Function-Free Time-Aware Attention to Context and Speaker Indicator for Spoken Language Understanding
Table 1: SLU accuracy on DSTC 4. ∗: p<0.05; ∗∗, p<0.01 compared to all the baseline models. Italicized scores are reported in the references. Model names are described in the text.
['[BOLD] Model', '[BOLD] F1 score  [BOLD] Sent.-Level', '[BOLD] F1 score  [BOLD] Role-Level']
All of the proposed models achieved significant improvements compared to all the baseline models. -Free Content-and-Time-Aware Attention achieved significantly higher F1 scores that all baseline models. Especially, the role-level Decay-Function-Free Time-Aware Attention with speaker indicator achieved an F1 score of 76.56 % (row 11), which is a state-of-the-art SLU accuracy.