ISR10 List of Tables list of tables Joseph John Rocchio Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. LIS[OCRerr] OF [OCRerr]ABLES mable 2.1 * wcra Stem Frequency List of a Sample Document . Piogram Steps for Pro[OCRerr]ucin[OCRerr] Eelevance Fee[OCRerr]back...... Mo[OCRerr]ifie[OCRerr] Queries [OCRerr].2 [OCRerr]itles of Documents Relevant to Search Request 111-R In[OCRerr]exing1' 4.1 Comparison Operations on Set Represented Operands 4.[OCRerr] Comparison Operations on Vector Represented Operands 4.[OCRerr] Summary of the Steps of the Classification Algorithm 5.1 Retrieval results for 4 Equally Probable Query [OCRerr]es 5.2 Comparison of Precision and Recall Estimates xiii page 2-10 * 3-30 * 4-3 * -7 * 4-34 * 5-11 5-12