In order to improve vertical search engine's search efficiency,describe the word segmentation in vertical search engine. It studies the characteristics of the maximum length matching algorithms, propose the improving of the maximum length matching algorithm to improve search efficiency. The improved algorithm shows that, it results to a certain improvement to the segmentation, reflected the advantage compared to the ordinary maximum length matching algorithms. And compared to the maximum length matching algorithms, the improved algorithms can improve the search accuracy rate, enhance the efficiency of retrieval, and it has a effective improvement to the maximum length matching algorithms, and it also reflects that the rational design of search engine algorithms can improve search performance.%为了提高垂直搜索引擎的检索效率,介绍了垂直搜索引擎中的分词技术.文中主要通过研究最大长度匹配算法,提出了改进后的最大长度匹配算法以提高检索效率.改进后的算法显示,分词效果得到了一定的提升,体现了相对于普通最大长度匹配算法的优势.且通过将改进后的方法与普通最大长度匹配算法相比较可知,改进后的算法提高了搜索的正确率,提升了检索的效率,是一种对最大长度匹配算法的有效改进,由此也体现了搜索引擎中算法合理设计可以提升搜索性能.
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