基于多重分形的实际信息流的尺度研究

信息检索的相关性反映了信息流对用户信息需求的满足特性，正确认识信息流的分布特性并建立合适的模型，对信息检索的研究和发展有着十分重要的作用．针对检索信息流的统计特性，对各种检索模型反馈的业务流进行研究，利用小波变换刻画其尺度特性，发现不同的业务流都具有分形特性，并且在尺度表现上有所差别，其原因是由于业务流自身的分布特征所造成的．

Scale of Real Information Traffic Based on Multi-fractal

The relevance of information retrieval reflects the property of traffic to the user information demand,and it has great effect on the research and development of retrieval that it could correctly understand the distribution characteristics of traffic and build the appropriate model.Aiming at the statistic property of the traffic,different retrieval model,wavelet transform on scale characteristic,the result shows that the all traffics have the fractal characteristics,differentiation on the scale,and due to the distribution characteristics of traffic oneself.