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目前,计算机情报检索已相当普遍,其检索过程已由手工检索的人工比较变为机器内部没有内涵的字符串匹配及逻辑运算过程。这样,检索质量的高低也就取决于检索策略质量的优劣,而检索策略质量的优劣则取决于我们能否对课题内容领会的程度,只有深入地领会了课题真谛,才能在确定相关数据库的基础上拟定出合适的检索表达式。检索式的质量决定了检索的效果。检索式包括单元词和由单元词组成词组的表达式。而要使我们提出的检索式通过计算机检出优质的相关文献,必须通过施行恰当的检索技术。下面对几种常用的检索技术进行讨论。
At present, Computer Information Retrieval has been quite common. The retrieval process has been changed from manual comparison of manual retrieval to string matching and logic calculation process with no connotation inside the machine. In this way, the level of the quality of the search also depends on the quality of the search strategy, and the quality of the search strategy depends on whether we can understand the extent of the content of the subject. Only in-depth understanding of the essence of the subject, in determining the relevant database Based on the formulation of a suitable search expression. The quality of the search determines the effectiveness of the search. The search includes the unit words and the expressions that form the phrase from the unit words. And to make our search query through computer to check the quality of relevant literature, must be through the implementation of appropriate search technology. The following several commonly used search techniques are discussed.