凝视作为共同基础（Common Grounding）的证据：MapTask与MUNDEX的跨语料库分析
Gaze as Evidence for Common Grounding: A Cross-Corpus Analysis of MapTask and MUNDEX
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中文总结 AI 辅助
本研究通过跨语料库分析MapTask和MUNDEX，发现凝视特征（如任务导向凝视、低熵）与协作任务中的共同基础相关，表明凝视是理解对齐的辅助线索。
中文摘要 AI 辅助
在信息不对称的协作任务中，参与者通过互动来协调彼此的理解。我们探究凝视是否能为这类任务中的共同基础（grounding）提供证据。基于离散的行为标注，我们将HCRC MapTask（Anderson等，1991）和MUNDEX（Türk等，2023）映射到一个共享的伙伴/任务/偏离（partner/task/away）词汇表中，并计算围绕任务相关对话单元的凝视特征。在两个语料库中，对齐的指称解释（MapTask）和UND（理解）判断（MUNDEX）与更多指向任务的凝视、更少指向伙伴的凝视、更低的凝视熵以及更少的凝视转换相关联。这些关联在主导任务的参与者身上最为明显：在给予者产生的指称中，以及在解释者的判断中，后者还与解释对象的凝视共同变化。在MapTask中同一说话者的指称链中，当先前未对齐的指称对象变为对齐时，说话者在提及该对象时的凝视熵较低。在分组交叉验证下，最佳的凝视特征组相比对照组仅有适度提升：MapTask中的时间特征和MUNDEX中的原始比例。由于效应较小，且当以重复出现的参与者而非对话作为推断单位时，若干效应会减弱，我们将凝视视为共同基础的一个贡献性线索，需结合任务和对话背景进行解读。
英文摘要
In collaborative tasks with asymmetric information, participants coordinate their understanding through interaction. We ask whether gaze provides evidence about grounding across two such tasks. Working from discrete behavioral annotations, we map HCRC MapTask (Anderson et al., 1991) and MUNDEX (Türk et al., 2023) into a shared partner/task/away vocabulary and compute gaze features around task-relevant dialogue units. In both corpora, aligned reference interpretations (MapTask) and UND (understood) judgments (MUNDEX) are associated with more task-directed gaze and with less partner-directed gaze, lower gaze entropy, and fewer gaze transitions. The associations are clearest for the participant leading the task: in giver-produced references, and in explainer judgments, which also co-vary with the explainee's gaze. In same-speaker MapTask reference chains, the speaker's gaze entropy is lower at the mention where a previously non-aligned referent becomes aligned. The best gaze feature groups improve modestly over controls under grouped cross-validation: temporal features in MapTask and raw proportions in MUNDEX. Because effects are small and several weaken when recurring participants rather than dialogues are the unit of inference, we treat gaze as one contributing cue to grounding, to be interpreted alongside task and dialogue context.
发表机构
- Utrecht University（乌得勒支大学）
- Queen Mary University of London（伦敦玛丽女王大学）
机构由 AI 辅助整理，请以论文原文为准。
