design considerations for a boolean search system with automatic relevance feedback processing
Two major problems are considered in the design of a Boolean search system with automatic relevance feedback processing. The first problem is how terms should be connected with Boolean logic when constructing a modified query. A number of fixed formats are presented and evaluated. The second problem is how to select terms for entry into the modified query. The stability of the system is found to be quite sensitive to its method of selecting terms. Only very restrictive term selection methods are found to be workable in several on-line experiments.
boolean automatic relevance feedback on-line interactive retrieval iterative search techniques query modification