计算机应用与软件Issue(3)：306-308,320,4.DOI:10.3969/j.issn.1000-386x.2015.03.072
面向城市交通信息的垂直搜索引擎的设计与实现
DESIGN AND IMPLEMENTATION OF URBAN TRAFFIC INFORMATION-ORIENTED VERTICAL SEARCH ENGINE
摘要
Abstract
Aiming at the trend that urban traffic information progressively increases in geometrical form in current network,we research the design and implementation technologies in regard to urban traffic information-oriented vertical search engine,and present the improved method which is based on the combination of Nutch search engine technology and Google maps services.We design the retrieval function modules including topic information grab,Chinese word segmentation,topic relevance judgment,and index construction,etc.The method takes Web map services as the platform,completes the search and analysis services of theme traffics.Experimental results demonstrate that relative to other general search engines,the urban traffic information-oriented vertical search engine is more dominant in themes.In traffic feature field its crawling depth and coverage range are all enhanced.The improved algorithm can effectively extract high quality webpage files as well. Meanwhile it is also more accurate in positioning the traffic information and themes sorting.关键词
垂直搜索引擎/Nutch/Google 地图服务/城市交通信息Key words
Vertical search engine/Nutch/Google maps service/Urban traffic information分类
信息技术与安全科学引用本文复制引用
袁萌,李景文,胡泊..面向城市交通信息的垂直搜索引擎的设计与实现[J].计算机应用与软件,2015,(3):306-308,320,4.基金项目
广西自然科学基金重点项目 （）
