摘要
本文对二值独立性标引模型、DIA模型和2—Poisson模型三种典型的概率标引模型进行了研究,分析了其原理和处理过程,评价了其性能。
This paper studies three typical probalilistic indexing models: BII, DIA and 2 Poisson. The principles and processing procedures of these models are analysed, and their performances are evaluated.
出处
《情报科学》
CSSCI
1999年第6期676-678,690,共4页
Information Science
关键词
概率标引
标引模型
自动标引
文献标引
Probabilistic indexing Indexing models Automatic indexing