要提高检索效率，数据质量是关键。计算机是“无情”的机器，进去什么，出来什么。强调档案数据的数量，同时要注重档案数据的质量。数据不足，检索系统无法应用，数据充足但质量低劣，可导致系统瘫痪。影响数据质量的原因主要有：一、主题词概念理解误差与文献检索中标引检索 To improve search efficiency, data quality is the key. The computer is a “heartless” machine, what goes in, what comes out. Emphasize the number of file data, and pay attention to the quality of the file data. Insufficient data, the search system can not be applied, the data is sufficient but its quality is poor, which can lead to the system being paralyzed. The main reasons affecting the quality of the data are as follows: First, the concept of keyword understanding of the error and the literature retrieval indexing search