ISR11 Scientific Report No. ISR-11 Information Storage and Retrieval Table of Contents table of contents Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. TAB[OCRerr] OF CONTENTS (continued) Page SECTION V (continued) E) Hierarchical Subject Expansion F) Manual Indexing C C G) Iterative Searching C H) S[OCRerr]nnary C C C C SECTION VI * C I C e V-28 * C C C C V-30 * C C C C V-32 * C C C C V-33 RIDD[OCRerr], We, HORWITZ, T., and DIETZ, R.: ttRelevance Feedback in an Infoz[OCRerr]ation Retrieval System11 1. Introduction VI-l 2. Principal Methods VIA A) Determination of the Nuniber of Documents Retrieved C C C C B) The Effect of the Correlation Function C) Determination of the Relevance Wei[OCRerr]hting Factors C C C C C C C D) Determination of the Value of [OCRerr] * E) Termination of the Modification Process C C C VI-5 * * * VI-5 * * * vi-6 * * * v'-8 * C C VI[OCRerr]lO 3. Experimental Results VI-lo 4. Conclusions VI-12 Appendix A C C I C C C I C C C VI-16 Appendix B (by. E. M. Keen) ix C C C I C C C C C VI-19