In this paper, we propose Tutoring bot, a generative chatbot trained on a
large scale of tutor-student conversations for English-language learning. To
mimic a human tutor's behavior in language education, the tutor bot leverages
diverse educational instructions and grounds to each instruction as additional
input context for the tutor response generation. As a single instruction
generally involves multiple dialogue turns to give the student sufficient
speaking practice, the tutor bot is required to monitor and capture when the
current instruction should be kept or switched to the next instruction. For
that, the tutor bot is learned to not only generate responses but also infer
its teaching action and progress on the current conversation simultaneously by
a multi-task learning scheme. Our Tutoring bot is deployed under a
non-commercial use license at this https URL.

本文介绍了 Tutoring bot，这是一个基于大规模家教 - 学生对话数据训练的生成式聊天机器人，用于辅助英语学习。机器人通过多种教育指导和背景知识来模仿人类辅导员在语言教育中的行为，同时通过多任务学习方案来实时监测并捕捉教学情况和进展。