基于模糊评价的VDT系统搜索策略绩效形成机理研究

为优化视觉显示终端（VDT）结构性搜索界面的布局，提高作业绩效和安全，设计了VDT系统搜索实验，构建了搜索目标位置在4个主观偏好指标下的Pythagorean模糊集决策矩阵，运用交互式多准则决策（TODIM）法计算各目标位置偏好的总体优势度并排序；同时对VDT系统搜索实验中各目标位置的绩效进行方差分析并排序，分析系统搜索策略下作业者对目标位置的主观偏好与绩效之间的关系。研究结果表明:基于系统搜索策略的VDT作业绩效在不同目标位置差异显著；导致绩效差异的根本原因是作业者对搜索目标位置的主观偏好度，而不是搜索目标的位置属性；除中心区域外，偏好度高的区域搜索绩效要优于偏好度低的区域。

Study on formation mechanism of VDT systematic search strategy performance based on fuzzy evaluation

To optimize the layout of structural search interface for the visual display terminal (VDT),and improve the operation performance and safety,the VDT systematic search experiments were designed.The Pythagorean fuzzy set decision making matrix of search target location under four subjective preference indexes was constructed,and the overall dominance degree of each target location preference was calculated and sorted by using the interactive and multi criteria decision making (TODIM) method.Furthermore,the variance analysis and sorting on the performance of each target location in the VDT systematic search experiments were carried out,and the relationship between the subjective preference and performance of operators on the target location under the systematic search strategy was analyzed.The results showed that the VDT operation performance based on the systematic search strategy had obvious difference in different target locations.The fundamental reason for the performance difference was the subjective preference of operator on the search target location,rather than the location property of search target.Besides the central area,the search performance of area with high preference was better than that with low preference.