【作者】 任严；

【导师】 韩臻；

【作者基本信息】 北京交通大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着Internet和Web技术的飞速发展，WWW已经成为人们进行信息交流不可缺少的巨大信息空间。面对如此大量的信息，人们在寻找自己所需要的信息时常常迷失方向。如何快速、准确的从浩瀚的信息资源中找到自己所需要的信息已经成为困扰用户的一大难题。随着搜索引擎的广泛应用，人们对于搜索引擎的要求也越来越高，查准率和查全率成为衡量搜索引擎的重要标志，无用信息过滤也成为人们开始关注的问题。另外，通用搜索引擎已经不能满足人们对于特定领域的检索要求，多元化的搜索引擎开始应运而生，专业性和专题性的搜索引擎层出不穷。另外，随着现在网络的普及，网络已经慢慢融入人们的生活和娱乐。网络视频具有可以在线观看、不需要下载、短小精悍、内容丰富等特点，因此受到越来越多网络用户的欢迎。目前，用户要想在传统的通用搜索引擎上搜索某一个特定的网络视频，其返回结果往往是很多无用的网页信息，因此，针对通用搜索引擎的不足，本课题结合搜索引擎的原理和网络视频的特点，开发了基于网络视频业务的搜索引擎，用来解决用户在搜索网络视频方面的问题。本文研究并实现了基于网络视频业务的搜索引擎系统。实现该系统时，引入了搜索引擎的架构模型，即网络蜘蛛、索引器和检索器，并且加入了分词和搜索自动提示功能。该搜索引擎系统主要基于全文检索引擎Apache Lucene构建，本文详细论述了该搜索引擎所需要的相关理论，并给出了系统的整体框架结构图以及各个部分的详细设计方案，最后给出了该系统的运行效果。更多还原

【Abstract】 With the quickly development of internet and web technology, WWW has become big information space. Faced with so much information, people often lose their direction when they look for their requisite information. How to find the requisite information quickly and accurately has become a big problem for the users.With the application of search engine system broadly, the requirement of people for search engine is higher and higher, veracity and integrality have become new criterion for search engine system. Filtrating useless information also has become new problem which people begin paying attention to. Further more, general search engine has not satisfied search requirement people need for specifically knowledge. Therefore, multi-type search engine system begins to appear, professional and special search engine system emerges in endlessly.With the popularization of web, web has been more used for life and entertainment. The video in the internet can be watched on line, not needed to be downloaded, shorter, abundant contents, so it is liked by the users of web.If people try to search a video on the general search engine, most of the results are web pages. So, we designed the video search engine according to the theory of search engine and the characteristics of videos in the internet, to solve the problem of people on searching the videos.The paper researches and implements the system of search engine based on videos in the internet. In order to implement the system, we introduce the architecture of search engine: web spider, indexer and searcher. We also add the functions of segmentation and the keyword tips. The video search engine is based on the architecture of Apache Lucene. The paper introduces the theories of video search engine, and tells how to implement each module, at last, shows the result of the video search engine.更多还原