∑^2全文数据库模型算法和应用

∑ 2 Whole Text Database Model Algorithms and Application

在简单介绍∑2矩阵模型的基础上，以一个应用实例为对象，对∑2矩阵模型的建立、查询等方面进行了较为详细的讨论，提出一些可能遇到的同题和困难，并同时给出了一些解决方法和策略.

This paper introduces the concept of the ∑2 whole text database model, discusses the creation and query of the modal by an example of application. It also gives the solutions for some problems and difficulties that may be encountered.