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指出在网络受控环境下,用户主观因素是影响信息检索绩效的重要变量,在信息检索过程中发挥着至关重要的作用。利用CCA典型相关分析方法,分析主观因素与检索行为等因素之间的关系。结果表明:①容易度与任务总时间显著相关,当用户在检索后判断任务难度大时将会付出更多的时间和努力;②标记文献数、重复浏览率、浏览网页数与感觉、丢失度相关;③高兴度与相关度、完成度负相关表明用户在检索前愉悦程度低的用户可能获得更好的检索结果。
It is pointed out that subjective factors of users are the important variables that affect the performance of information retrieval under the controlled network environment and play a crucial role in the information retrieval process. CCA canonical correlation analysis can be used to analyze the relationship between subjective factors and retrieval behavior. The results show that: (1) there is a significant correlation between the ease and the total task time, and more time and effort will be paid when the user judges the difficulty of the task after searching; (2) the number of markup documents, repetition rate, number of pages viewed, feeling Correlation; ③ Pleasure and relevancy, the degree of completion of the negative correlation indicates that the user before the retrieval of low level of user may get better search results.