The increasingly popularization of internet brings great changes to the manners of people ' s living and working . as people enjoy the convenience bring by network technology , security issues also come into consideration . network security also becomes one of the research hotspots in the computer domanial Internet的日益普及给人们的生活和工作方式带来了巨大的变革，人们在享受网络技术带来的便利的同时，安全问题也提上了议事日程，网络安全也成为计算机领域的研究热点之一。
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To realize the individuation service of web information , we need many domanial theoretics and techniques , for example , mostly , information searches , information filtration , computer network , distributed disposal , database manage system , data mining , numeric library , disposal ofnarural language , artificial intelligence , machine learning and so on . thus , to realize the individuation service of web information , we will be encountered great challenges and we have to do a compositive and hard task 要实现web的个性化服务，涉及到许多领域的理论和技术，主要有信息检索、信息过滤、计算机网络、分布式处理、数据库、数据挖掘、数字图书馆、自然语言处理、人工智能和机器学习等，所以要实现web的个性化服务具有综合性和挑战性。
