Information industry is a knowledge intensive industry.It’s a fast growing industry with wide needs and high benefits.In this paper,some different views on the development trend of information industry in China after she joins WTO are described,The problems now existent in information industry in China are analyzed.Meanwhile,the paper explores the development objectives and countermeasures for information industry in China in the future.
The paper mainly discusses the application of dynamic relevance feedback technique in Web intelligent retrieval and stresses the dynamic similarity in the course of feedback.It discusses the application of dynamic relevance feedback technique from the Web page text and image aspects,and proposes to use the user interest model and the neural network to raise the precision and feasibility of the search result in relevant feedback.