|
Abstract : |
subcontractor), has focused on the following goals: ffl Improving the effectiveness of information retrieval techniques for large, full-text databases, ffl Improving the effectiveness of routing techniques appropriate for long-term information needs, and ffl Demonstrating the effectiveness of these retrieval and routing techniques for Japanese full text databases [5]. Our general approach to achieving these goals has been to use improved representations of text and information needs in the framework of a new model of retrieval. This model uses Bayesian networks to describe how text and queries should be used to identify relevant documents [7, 4, 8]. Retrieval (and routing) is viewed as a probabilistic inference process which compares text representations, |
