整合多个搜索引擎结果，用更优方式帮用户找最准信息。
The Essence of the Essence from the Web:The Metasearch Engine
- 将查询并发发送至多个搜索引擎，统一整合结果。
- 相比单个引擎，检索覆盖率更高，结果相关性更强。
- 适合需要全面信息、不愿逐个试工具的用户。
网络信息源指数级增长，用户难以判断哪个搜索工具最适合当前查询。元搜索引擎通过并行调用多个搜索引擎，获取其返回结果后进行整合与优化，为用户提供更优质的信息检索服务。元搜索引擎自身不维护网页数据库，而是将查询请求转发给各搜索引擎公司，再汇总和重排结果。本文介绍了典型元搜索引擎的工作机制，并基于多项指标对比传统搜索引擎与元搜索引擎的性能，证明元搜索引擎在覆盖范围、结果质量等方面具有明显优势。
原文摘要 · Abstract (English)
The exponential growth of information source on the web and in turn continuing technological progress of searching the information by using tools like Search Engines gives rise to many problems for the user to know which tool is best for their query and which tool is not. At this time Metasearch Engine comes into play by reducing the user burden by dispatching queries to multiple search engines in parallel and refining the results of these search engines to give the best out of best by doing superior job on their side. These engines do not own a database of Web pages rather they send search terms to the databases maintained by the search engine companies, get back results from all the search engines queried and then compile the results to be presented to the user. In this paper, we describe the working of a typical metasearch engine and then present a comparative study of traditional search engines and metasearch engines on the basis of different parameters and show how metasearch engines are better than the other search engines.
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