Daphne: A Virtual Assistant for Designing Earth Observation Distributed Spacecraft Missions
Daphne: A Virtual Assistant for Designing Earth Observation Distributed Spacecraft Missions
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DOI：
10.1109/jstars.2019.2948921
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发表时间：
2020
影响因子：
5.5
通讯作者：
A. V. Martin;Daniel Selva
中科院分区：
文献类型：
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作者：
A. V. Martin;Daniel Selva
本文介绍了Daphne，一个用于设计地球观测分布式航天器任务的虚拟助手。据我们所知，这是此类应用程序的第一个虚拟助手。本文对Daphne进行了全面的描述，包括它的问答系统以及我们为帮助系统工程师设计分布式航天器任务而实现的主要功能。此外，本文还描述了在NASA喷气推进实验室（JPL）进行的一项研究，以评估Daphne在此用例中的有用性。该研究是与来自喷气推进实验室的N = 9名受试者一起进行的，他们被要求使用两个版本的达芙妮来完成使命设计任务，一个版本具有完全实现认知辅助功能的功能，另一个版本只具有传统设计空间探索工具中的功能。任务完成后，他们填写了一份标准的用户体验调查，完成了一项测试，以评估他们对任务的了解程度，并在半结构化的离职面谈中被问到了一些问题。研究结果表明，与传统工具相比，Daphne可以帮助提高系统设计任务的性能，同时保持系统的可用性。然而，这项研究也提出了一些担忧，即由于使用认知助手，人类学习可能会减少。文章最后对未来空间使命设计虚拟助手的发展提出了一些建议。
This article describes Daphne, a virtual assistant for designing Earth observation distributed spacecraft missions. It is, to the best of our knowledge, the first virtual assistant for such application. The article provides a thorough description of Daphne, including its question answering system and the main features we have implemented to help system engineers design distributed spacecraft missions. In addition, the article describes a study performed at NASA's Jet Propulsion Laboratory (JPL) to assess the usefulness of Daphne in this use case. The study was conducted with N = 9 subjects from JPL, who were asked to work on a mission design task with two versions of Daphne, one that was fully featured implementing the cognitive assistance functions, and one that only had the features one would find in a traditional design space exploration tool. After the task, they filled out a standard user experience survey, completed a test to assess how much they learned about the task, and were asked a number of questions in a semi-structured exit interview. Results of the study suggest that Daphne can help improve performance during system design tasks compared to traditional tools, while keeping the system usable. However, the study also raises some concerns with respect to a potential reduction in human learning due to the use of the cognitive assistant. The article ends with a list of suggestions for future development of virtual assistants for space mission design.