ISR11 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. TABLE OF CONTENTS (continued) Page SECTION II (continued) 3.3. Vector Expansions by Means 0£ Concept- Concept Correlation . . . 11-12 Vector Expansion by Means of 3.[OCRerr]. Concept Hierarchies 11-15 ii-i6 3.5. Vector Formation 3.6. Request-Document Correlation 11-17 . . . 11-19 3.7. Document-Document Expansion 3.8. Other Specifications . . . 11-19 4. Data Input 11-20 4.1. Natural Language Documents . . . . . 11-20 4.2. Binary Documents . . . . . 11-28 4.3. DOCTAPS . . . . . . . 11-29 4.4. Relevance Judgment Data . . . . . 11-29 4.[OCRerr]. Other Instruction Cards . . . . . 11-30 5. Tape Preparation Programs . . . . . 11-31 5.1. Writing a New Library Tape . . . 11-31 5.1.1. Thesaurus and Suffix List Formation 11-33 5.1.2. Statistical Phrase Dictionary 11-35 5.1.3. Syntactic Suffix List 11-37 5.i.4. The Condensed Cr[OCRerr]r File . . . 11-38 5.1.5. The Criterion Tree File . . . `i-4o 5.1.5.1. Criterion Tree Input Format . . . ii-4i 5.1.6. Hierarc1[OCRerr]y . . . . 11-SO 5.2. The Document Tape . . . 11-51 5.3. The Program Tape 11-52 V