Abstract: Because of both historical data and experts’ data existing when assessing bachelor dissertation, a new synthetical assessment method combined variable precision rough set and evidence theory was proposed. By applying VPRS to analyse historical data, the emprical mass funciton was calculated, which was used to construct each expert’s mass function according to experts’ data, and lastly the experts’ mass functions were composited by evidence theory. Practical research indicates that, the two data are sufficiently used, and the result is reliable.

Key words: VPRS, evidence theory, dissertation, synthetical assessment

摘要： 针对高校本科生毕业论文综合评价中既有历史经验数据又有专家评分数据的实际情况，探讨了将变精度粗糙集（VPRS）与证据理论（ET）相结合的综合评价方法，论述了利用VPRS分析历史数据，得到经验mass函数，并结合专家评分数据构造专家mass函数，最后利用证据理论进行证据合成的思想。实例研究表明，该方法充分利用了毕业论文综合评价中的历史经验数据和专家评分数据，结果可靠.

关键词: 变精度粗糙集, 证据理论, 毕业论文, 综合评价