查全率和查准率的农业数据库

数据库要做到对分类数据的查全率、查准率,除了SQL数据的查询外,必须对数据库数据进行分类数据分类。数据库数据按照一定的分类法则进行分类是达到数据库按分类查全率,查准率的要求。数据库数据的SQL数据查询,可以按照SQL法则查询数据库的数据。但是要做到对数据库数据的查全率和查准率,必须对数据库的数据按照一定的分类法则进行分类。

Recall and Precision Ratio of Agricultural Database

In order to ensure the recall and precision ratio of categorical data, it need to classify the database data besides SQL data query. Database data classification in accordance with the certain classification rules is the basic demand of recall and precision. The SQL data query can query data by applying the law of SQL. And to guarantee the data recall and precision, the database data must be classified according to certain classification rules.