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指出某些应用领域要求对数据库施加专门的数据约束，把判断一个数据库是否满足这种约束的问题归为数据语义判别提出了用相关语义网络的表示方法来表达数据约束，运用激活传递的推理方法解决这个问题
It is pointed out that some application fields require special data constraints to the database, and the problem of judging whether a database satisfies the constraints is classified as data semantic discrimination. The paper presents the expression of data constraints by using the representation of related semantic networks, Method to solve this problem