SP500207 NIST Special Publication 500-207: The First Text REtrieval Conference (TREC-1) Site Report for the Text REtrieval Conference chapter P. Nelson National Institute of Standards and Technology Donna K. Harman aardvark aback abacus Dictionary 1: (n) a slab which forms the uppermost member of the capital of a column zwieback - zygote zymosis - Semantic Network 2: (n) an instrinnent for performing calculations by sliding counters along rods counter:4 computation: 1 abacu5:2[OCRerr][OCRerr]\ __________ computer:2 [OCRerr]calc;1atoľ3[OCRerr]/ Figure 2 Example Structures for the Dictionary & Semantic Networks Indexing ConQuest performs several steps of normalization and information extraction during indexing to help queries run faster. Words are normalized and enhanced before indexing with tokenization, morphology, and idiom processing. ConQuest Dictionary Text Parse Database Document Tokenize Morphology A Find A Idioms Index Indexes Figure 3 The Indexing Process 290