Papers › PK-Chat: Pointer Network Guided Knowledge Driven Generative Dialogue Model

PK-Chat: Pointer Network Guided Knowledge Driven Generative Dialogue Model

2 Apr 2023arXiv:2304.00592archive 2025-07-28

Cheng Deng, Bo Tong, Luoyi Fu, Jiaxin Ding, Dexing Cao, Xinbing Wang, Chenghu Zhou

In the research of end-to-end dialogue systems, using real-world knowledge to generate natural, fluent, and human-like utterances with correct answers is crucial. However, domain-specific conversational dialogue systems may be incoherent and introduce erroneous external information to answer questions due to the out-of-vocabulary issue or the wrong knowledge from the parameters of the neural network. In this work, we propose PK-Chat, a Pointer network guided Knowledge-driven generative dialogue model, incorporating a unified pretrained language model and a pointer network over knowledge graphs. The words generated by PK-Chat in the dialogue are derived from the prediction of word lists and the direct prediction of the external knowledge graph knowledge. Moreover, based on the PK-Chat, a dialogue system is built for academic scenarios in the case of geosciences. Finally, an academic dialogue benchmark is constructed to evaluate the quality of dialogue systems in academic scenarios and the source code is available online.

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iiot-tbb/dialogue_dde officialmentioned in papermentioned on GitHubpaddle report
davendw49/PK-Chat officialmentioned on GitHubpaddle report

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Knowledge GraphsLanguage ModelingLanguage ModellingWorld Knowledge

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LSTMPointer NetworkSigmoid ActivationSoftmaxTanh Activation

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