Actionable Conversational Quality Indicators for Improving Task-Oriented Dialog Systems

• URL: http://arxiv.org/abs/2109.11064v1
• Date: Wed, 22 Sep 2021 22:41:42 GMT
• Title: Actionable Conversational Quality Indicators for Improving Task-Oriented Dialog Systems
• Authors: Michael Higgins, Dominic Widdows, Chris Brew, Gwen Christian, Andrew Maurer, Matthew Dunn, Sujit Mathi, Akshay Hazare, George Bonev, Beth Ann Hockey, Kristen Howell, Joe Bradley
• Abstract summary: This paper introduces and explains the use of Actionable Conversational Quality Indicators (ACQIs) ACQIs are used both to recognize parts of dialogs that can be improved, and to recommend how to improve them. We demonstrate the effectiveness of using ACQIs on LivePerson internal dialog systems used in commercial customer service applications.
• Score: 2.6094079735487994
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Automatic dialog systems have become a mainstream part of online customer service. Many such systems are built, maintained, and improved by customer service specialists, rather than dialog systems engineers and computer programmers. As conversations between people and machines become commonplace, it is critical to understand what is working, what is not, and what actions can be taken to reduce the frequency of inappropriate system responses. These analyses and recommendations need to be presented in terms that directly reflect the user experience rather than the internal dialog processing. This paper introduces and explains the use of Actionable Conversational Quality Indicators (ACQIs), which are used both to recognize parts of dialogs that can be improved, and to recommend how to improve them. This combines benefits of previous approaches, some of which have focused on producing dialog quality scoring while others have sought to categorize the types of errors the dialog system is making. We demonstrate the effectiveness of using ACQIs on LivePerson internal dialog systems used in commercial customer service applications, and on the publicly available CMU LEGOv2 conversational dataset (Raux et al. 2005). We report on the annotation and analysis of conversational datasets showing which ACQIs are important to fix in various situations. The annotated datasets are then used to build a predictive model which uses a turn-based vector embedding of the message texts and achieves an 79% weighted average f1-measure at the task of finding the correct ACQI for a given conversation. We predict that if such a model worked perfectly, the range of potential improvement actions a bot-builder must consider at each turn could be reduced by an average of 81%.

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