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arXiv 2007.13840cs.CLcs.AI
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句子语境对词义影响的表征:脑-行为映射

Characterizing the Effect of Sentence Context on Word Meanings: Mapping Brain to Behavior

ITESM(蒙特雷理工学院);The University of Texas at Austin(德克萨斯大学奥斯汀分校)

N. Aguirre-Celis, R. Miikkulainen

摘要:

语义特征模型已成为一种流行的工具,预测和解释的fMRI数据。特别是,以前的工作表明,在句子阅读的功能磁共振成像模式的差异可以解释上下文相关的变化,在语义特征表征的话。然而,受试者是否意识到这些变化并同意这些变化一直是一个悬而未决的问题。本文旨在通过一项人体研究来回答这个问题。受试者被要求判断当这些词被用在特定的句子中时,它们的一般意义是如何变化的。这些判断与模型预测一致,远高于偶然性。因此,研究结果支持了这一假设,即词义系统地变化取决于句子上下文。

英文摘要:

Semantic feature models have become a popular tool for prediction and interpretation of fMRI data. In particular, prior work has shown that differences in the fMRI patterns in sentence reading can be explained by context-dependent changes in the semantic feature representations of the words. However, whether the subjects are aware of such changes and agree with them has been an open question. This paper aims to answer this question through a human-subject study. Subjects were asked to judge how the word change from their generic meaning when the words were used in specific sentences. The judgements were consistent with the model predictions well above chance. Thus, the results support the hypothesis that word meaning change systematically depending on sentence context.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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