Research And Application Of The Urban Mobile Yellow Pages Information Directed Acquisition And Management Techniques

Today, the Internet community is the rapid development and Internet informationhas risen sharply. Getting data from the vast amounts in efficient, fast, accurate accessto relevant areas within the valid information has become the hot issues of commonconcern within the Internet industry. Meanwhile, with the continuous development ofthe mobile communications market in recent years, the mobile terminal has becomean important way for people to access information, a wide range of powerful mobileapplications have emerged, bringing people to life the great convenience,how tocombind of them, to fully tap the potential of which has become the widely discussedtopic of social now. this thesis is to expand the discussion of the subject, combiningpopular city tourism Yellow Pages and the key technology on research andapplication.First, the Web information collection technology and the related technologies areintroduced. Next, a detailed analysis of some of the key technology of the Webinformation collection process will be given include Page fetch, page cleaning andfiltering, information extraction, URL de-emphasis,data storage,etc.Then, designedand implemented a customized template-based Web information directed acquisitionsystem and provide semantic retrieval support.In the process of Web information gathering system design andimplementation,will also to expand research on the key technologies of thetopic-based Web information collection,including page filtering, informationextraction, URL processing, data organization and management, data transformationand aggregation technology. Then,put these technologies into the implementation ofthe final system.Finally, using experiments to demonstrate the performance of the system. Theresults show that the system fast and accurate collection efficiency in a particulartopic, but also has a high degree of flexibility and scalability for small andmedium-sized information collection. The content of this thesis contribute to a morefull and effective use of Web information resources, has practical application value.