A Configurable Conversational Agent to Trigger Students’ Productive Dialogue: A Pilot Study in the CALL Domain
A Configurable Conversational Agent to Trigger Students’ Productive Dialogue: A Pilot Study in the CALL Domain
复制标题
触发学生富有成效的对话的可配置对话代理：CALL 领域的试点研究
DOI：
10.1007/s40593-013-0007-3
复制
发表时间：
2013
影响因子：
4.9
通讯作者：
T. Tsiatsos
中科院分区：
文献类型：
--
作者：
Stergios Tegos;S. Demetriadis;T. Tsiatsos
会话代理构成了一种特殊类型的信息交换系统，据报道，它在一对一的环境中成功地帮助了学生，而最近它们在计算机支持的协作学习（CSCL）中的影响也被探索了。在这项工作中，我们提出了MentorChat，这是一个基于对话的系统，它采用了一个可配置的和独立于领域的对话代理来触发学生的富有成效的对话。在强调设计原理和系统架构的系统概述之后，我们提出了一个试点研究，其中代理在计算机辅助语言学习（CALL）领域的背景下进行评估。30名学生分成小组合作，尝试完成三个不同的任务。MentorChat会话代理在每个任务中以不同的方式支持每个小组讨论，提供(a)“弱”定向干预和/或(b)无定向干预。研究结果表明，通过提高明确推理水平，从而进行富有成效的对话，“弱”定向代理干预可以比无定向干预更有效。在系统可用性和用户接受度方面也取得了一些令人鼓舞的结果。
Conversational agents constitute a specific type of ITSs that has been reportedly proven successful in helping students in one-to-one settings, while recently their impact has also been explored in computer-supported collaborative learning (CSCL). In this work, we present MentorChat, a dialogue-based system that employs a configurable and domain-independent conversational agent for triggering students’ productive dialogue. After a system overview with an emphasis on design rationale and system architecture, we present a pilot study, where the agent is evaluated in the context of the computer-assisted language learning (CALL) domain. Thirty students collaborated in small groups trying to accomplish three different tasks. MentorChat conversational agent supported each group discussion differently in each task providing (a) ‘weak’-directed interventions and/or (b) undirected interventions. The study results indicate that ‘weak’-directed agent interventions can be more effective than undirected interventions by means of increasing the level of explicit reasoning, and thus productive dialogue. Some encouraging results concerning the system usability and user acceptance are also presented.
影响因子：
8.8
作者：
Fischer F;Kollar I;Stegmann K;Wecker C
通讯作者：
Wecker C