摘要
The study of mathematical models on information retrieval is an important area in the Information Retrievalcommunity. Because of the uncertainty characteristic of IR,the probability model based on statistical probability is apromising model from recent to future. Those models can be classified into classical models and probability networkmodels. Several famous models are introduced and their shortcomings are pointed out in this paper. We also clarifythe relationship of these models and introduce a new models based on statistical language model curtly.
The study of mathematical models on information retrieval is an important area in the Information Retrieval community. Because of the uncertainty characteristic of IR, the probability model based on statistical probability is a promising model from recent to future. Those models can be classified into classical models and probability network models. Several famous models are introduced and their shortcomings are pointed out in this paper. We also clarify the relationship of these models and introduce a new models based on statistical language model curtly.
出处
《计算机科学》
CSCD
北大核心
2003年第8期13-17,共5页
Computer Science
基金
国家重点基础研究(973)(G1998030509)
自然科学基金项目(60223004)
863高科技项目(No.2001AA114082)
