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A method and device for asking rhetorical questions to user questions based on a dialogue system

A technology of dialogue system and question sentence, which is applied in the fields of equipment, artificial life, computing, etc., can solve problems affecting business development, insufficient training model data, poor prediction ability of reinforcement learning model, etc., to improve user experience and speed up training speed , the effect of improving the prediction accuracy

Active Publication Date: 2021-10-15
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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Problems solved by technology

However, when the reinforcement learning model is used in natural language processing, the feedback is usually sparse, the amount of data used to train the model is not enough, and the initial predictive ability of the reinforcement learning model is poor, so that when the reinforcement learning model is started, the Poor user experience affects business development

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  • A method and device for asking rhetorical questions to user questions based on a dialogue system
  • A method and device for asking rhetorical questions to user questions based on a dialogue system
  • A method and device for asking rhetorical questions to user questions based on a dialogue system

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Embodiment Construction

[0038] Embodiments of this specification will be described below with reference to the accompanying drawings.

[0039] figure 1 A schematic diagram of a dialogue system according to an embodiment of this specification is shown. Such as figure 1As shown in , the dialogue system includes a reinforcement learning model 11 and a ranking model 12 . Based on the reinforcement learning model 11 , the dialogue system can raise rhetorical questions for the input questions, so as to clarify the input questions. For the input question sentence, the reinforcement learning model 11 can determine the output rhetorical question sentence from a predetermined set of candidate rhetorical question sentences. For example, the dialogue system may also include a rhetorical question model, which is used for determining a set of candidate rhetorical questions corresponding to the question input into the dialogue system. Therefore, multiple dialogue rounds can be obtained from the interaction betw...

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Abstract

The embodiments of the present specification provide a method and device for asking a rhetorical question based on a dialogue system, the dialogue system includes a reinforcement learning model, and the method includes: acquiring a first dialogue round based on the dialogue system, the first dialogue round A dialogue round includes T rounds of dialogue; acquire T states corresponding to the first dialogue round; acquire a plurality of feedback score vectors corresponding to multiple rhetorical questions included in the T round of dialogue, the feedback score The multiple dimensions included in the vector correspond to multiple predetermined features respectively; based on the T states, the multiple rhetorical questions, and the multiple feedback score vectors, the reinforcement learning model is trained to be used based on the reinforcement The learning model asks rhetorical questions to user questions.

Description

technical field [0001] The embodiment of this specification relates to the technical field of dialog systems, and more specifically, to a method and device for asking rhetorical questions to user questions based on the dialog system. Background technique [0002] Recently, people have paid more and more attention to how to use machine learning to better build dialogue systems. The dialogue system realizes the communication between human and machine through computer algorithms, including three types: question and answer type, task type and chat type. For the above-mentioned types of dialogue systems, the user usually asks questions and the dialogue system replies. In some cases, the questions raised by users are often vague, and it is difficult for the dialogue system to find matching standard questions directly from the query database and reply based on the answers to the standard questions. In this case, the dialog system needs to ask the user rhetorical questions to clar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N3/00
CPCG06N3/006
Inventor 姚开盛
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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