On the Construction of Feedback Queries
David K. Chow, C. Yu · Journal of the ACM · 1982
Optimal feedback queries in information retrieval systems are constructed An optimal retrieval rule is derived using the Neyman-Pearson decision rule Three probabdistic models and the optimal queries to be used in the models are presented Parameters which are required to construct these queries are esUmated on the basis of relevance information from the user about the retrieved documents Finally, the effects on retrieval performance of deleting a term from the optimal query in one of the three models are analyzed Categories and Subject Descriptors.G 3 [Mathematics of Computing]" Probability and Statistics, H 3 3 ]