SP500215 DR-LINK: A System Update for TREC-2 chapter E. Liddy S. Myaeng National Institute of Standards and Technology D. K. Harman DOCU[OCRerr]ENTS TOPICS z Preprocessor j I Text Structurer [OCRerr] Proper Noun (PN) I: I; (TS) I,. Interpreter I 1 I I I m. V Complex Nominal L~ra:L~-i..~. j Subject Field Coder V8 SFC Matcher TS+PN+CN Inverted File Creator 1' NLP Query Constructor TS+PN+CN Matcher j. V Relation Concept Detector I Conceptual Graph (CG) Generator 4... Topic CG Processor I Integrated Matcher V I Recall I[OCRerr][OCRerr]CG:j 4 Predictor Matcher Ranked Ranked List List Fig. 1: DR-LINK System 86 Ranked List