Papers › A Template-guided Hybrid Pointer Network for Knowledge-based Task-oriented Dialogue Systems

A Template-guided Hybrid Pointer Network for Knowledge-based Task-oriented Dialogue Systems

1 Aug 2021ACL (dialdoc) 2021 8archive 2025-07-28

Dingmin Wang, Ziyao Chen, Wanwei He, Li Zhong, Yunzhe Tao, Min Yang

Most existing neural network based task-oriented dialog systems follow encoder-decoder paradigm, where the decoder purely depends on the source texts to generate a sequence of words, usually suffering from instability and poor readability. Inspired by the traditional template-based generation approaches, we propose a template-guided hybrid pointer network for knowledge-based task-oriented dialog systems, which retrieves several potentially relevant answers from a pre-constructed domain-specific conversational repository as guidance answers, and incorporates the guidance answers into both the encoding and decoding processes. Specifically, we design a memory pointer network model with a gating mechanism to fully exploit the semantic correlation between the retrieved answers and the ground-truth response. We evaluate our model on four widely used task-oriented datasets, including one simulated and three manually created datasets. The experimental results demonstrate that the proposed model achieves significantly better performance than the state-of-the-art methods over different automatic evaluation metrics.

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Tasks

DecoderTask-Oriented Dialogue Systems

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Task-Oriented Dialogue Systems KVRET THPN BLEU 12.8 #9 of 10 Archive leaderboard report
Task-Oriented Dialogue Systems KVRET THPN Entity F1 37.8 #9 of 10 Archive leaderboard report

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