专业搜索引擎搜索结果融合算法研究

Research in results merging algorithm for professional search engine

为了提高专业搜索引擎的查询精度,提出了一种基于PageRank算法的改进搜索结果融合算法。首先,通过对元搜索引擎技术的分析,将rtf算法和PageRank算法进行融合,提出了基于PageRank算法的改进算法。该算法可以实现基于同义词、近义词的查询,将这种改进的算法在煤地质学专业搜索引擎上进行使用,实验结果表明,采用该修改后的排序算法,从一定程度上能够把独立搜索引擎的搜索结果有机地融合在一起,进一步提高了专业搜索引擎的查准率和查全率。

In order to improve the precision of meta search engine, an improved results merging algorithm based on PageRank is proposed. With meta search engine technology analyzed and the disadvantages of PageRank algorithm considered, rtf algorithm is proposed. The improved merging algorithm could realize query based on synonym or near-synonym. It use in the professional search engine of coal geology, proves to be effective.