We present an evaluation framework for interactive dialogue assessment in the context of English as a Second Language (ESL) speakers. Our framework collects dialogue-level interactivity labels (e.g., topic management; 4 labels in total) and micro-level span features (e.g., backchannels; 17 features in total). Given our annotated data, we study how the micro-level features influence the (higher level) interactivity quality of ESL dialogues by constructing various machine learning-based models. Our results demonstrate that certain micro-level features strongly correlate with interactivity quality, like reference word (e.g., she, her, he), revealing new insights about the interaction between higher-level dialogue quality and lower-level linguistic signals. Our framework also provides a means to assess ESL communication, which is useful for language assessment.
翻译:本文提出了一种针对英语作为第二语言(ESL)使用者的互动对话评估框架。该框架收集对话层面的互动性标签(例如话题管理;共4类标签)以及微观层面的片段特征(例如反馈性提示;共17项特征)。基于标注数据,我们通过构建多种机器学习模型,研究了微观特征如何影响ESL对话的(更高层面)互动质量。实验结果表明,部分微观特征(如指称词“she”“her”“he”等)与互动质量存在强相关性,这揭示了高层对话质量与底层语言信号之间的交互关系。本框架同时为ESL交际能力评估提供了有效工具,对语言测评具有实用价值。