Determining the dimensionality in spatial representations of semantic concepts
Determining the dimensionality in spatial representations of semantic concepts
复制标题
确定语义概念空间表示的维度
作者：
S. Verheyen;Eef Ameel;G. Storms
当多维尺度解用于研究语义概念时，必须确定最优配置的维数。已经提出了几种策略来选择合适的维度。在本文中，传统的维度选择标准进行了评估和比较的方法的基础上预测的外部标准。进行了两项研究，其中典型性的一个语义概念内的样本预测从它的距离概念质心。与传统方法选择的低维解决方案相比，外部标准的预测随着额外的维度而提高，直到维度比文献中常见的要高得多。这表明，传统的方法低估了丰富的语义概念所揭示的空间表示来自相似性措施。
When multidimensional scaling solutions are used to study semantic concepts, the dimensionality of the optimal configuration has to be determined. Several strategies have been proposed to choose the appropriate dimensionality. In the present paper, the traditional dimensionality choice criteria were evaluated and compared to a method based on the prediction of an external criterion. Two studies were conducted in which typicality of an exemplar within a semantic concept was predicted from its distance to the concept centroid. In contrast to the low-dimensional solutions selected by the traditional methods, predictions of an external criterion improved with additional dimensions up till dimensionalities that were much higher than what is common in the literature. This suggests that traditional methods underestimate the richness of semantic concepts as revealed in spatial representations derived from similarity measures.
影响因子：
4.1
作者：
NOSOFSKY, RM
通讯作者：
NOSOFSKY, RM
对大型、定义不明确的类别结构中的范例和决策约束模型进行研究。
DOI：
10.1037//0096-1523.21.1.128
发表时间：
1995
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
--
作者：
McKinley,SC;Nosofsky,RM
通讯作者：
Nosofsky,RM