Utterance-to-Utterance Interactive Matching Network for Multi-Turn Response Selection in Retrieval-Based Chatbots
TABLE X: Ablation tests of the distance-based prior for interactive matching on the four datasets.
['Dataset', 'Model', '[BOLD] R10@1', '[BOLD] R10@2', '[BOLD] R10@5']
The exponential prior based on sentence-level distances in Eq. We can see that the performance decreased on most metrics. Meanwhile, we can see that this distance-based prior provided larger improvements on the two Chinese datasets than on the two English datasets. The estimated prior function Φ(D)=e−0.536D−0.00001 in Eq. We can see that larger weights were assigned to the utterances closer to the response.