随机覆盖目标信息系统的属性约简

摘要

The concept of random covering objective information system is given The attribute reduction is studied in con-sistent random covering information system, and the positive domain reduction is discussed in inconsistent random cover-ing information system, by means of the belief measure and plausibility measure in the evidence theory. An example is used to illustrate the validity of this method.%引入随机覆盖目标信息系统的概念，以证据理论中的信任测度和似然测度为基本工具，研究了协调随机覆盖目标信息系统的属性约简和不协调随机覆盖目标信息系统的正域约简问题，最后给出实例验证了约简方法的有效性。