This article describes the MyST corpus developed as part of the My Science Tutor project -- one of the largest collections of children's conversational speech comprising approximately 400 hours, spanning some 230K utterances across about 10.5K virtual tutor sessions by around 1.3K third, fourth and fifth grade students. 100K of all utterances have been transcribed thus far. The corpus is freely available (https://myst.cemantix.org) for non-commercial use using a creative commons license. It is also available for commercial use (https://boulderlearning.com/resources/myst-corpus/). To date, ten organizations have licensed the corpus for commercial use, and approximately 40 university and other not-for-profit research groups have downloaded the corpus. It is our hope that the corpus can be used to improve automatic speech recognition algorithms, build and evaluate conversational AI agents for education, and together help accelerate development of multimodal applications to improve children's excitement and learning about science, and help them learn remotely.

MyST语料库是一个大型的儿童会话语料库，拥有约10.5K个虚拟辅导会话的约230K个话语，来自约1.3K个三年级、四年级和五年级学生，其目的是通过改进语音识别算法和开发对话型人工智能代理来促进儿童对科学的兴趣、学习和远程教育的发展。

My Science Tutor (MyST) - 儿童会话语言的大型语料库