Experiments in Query Processing at LEXIS-NEXIS for TREC-7

The purpose of this report is to provide an overview of LEXIS-NEXIS’ entries to the TREC-7 competition. The report will describe the experiments we conducted, the results we obtained, and our future research directions. The report is divided into three sections. The first section describes the experimental setup and gives a brief account of some of the research activities that led to the TREC-7 entries. The second section explains how the techniques developed during our research culminated into the three entries that were submitted. Our experiences with these new techniques gave us insight into new research directions for improving query processing. In the third section, we conclude by sharing these ideas with the reader.