The existing catalog search engine collects information by the labor or half - automatism . the collected information will be input in the certain catalog after they have been examined by the editors and the information abstract has been finished 目前的目录式搜索引擎是以人工方式或半自动方式搜集信息，由编辑员查看信息之后，人工形成信息摘要，并将信息置于事先确定的分类框架中。
