ISR11 Scientific Report No. ISR-11 Information Storage and Retrieval Information Analysis and Dictionary Construction chapter G. Salton M. E. Lesk Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. Iv-~ NAME OUTPUT FIRST SECOND TYPE 7 TYPE 15 TYPE 16 OF CON- NODE NODE SERIAL SERIAL SERIAL TREE CEPT CONCEPTS 143 398 399 - _ - - - - [OCRerr] MANROL=286(2[OCRerr]OI,( 11[OCRerr])S7[OCRerr]145e5+e 15/401.16+919+ [OCRerr]ATHOP'-59[OCRerr](615I,(7,116,376[OCRerr]S7I14? `.[OCRerr]HRK[OCRerr]u69(6[OCRerr]q)/(6('O[OCRerr]$1/148 [OCRerr] [OCRerr],(14.41.[OCRerr]nn.6('1 [OCRerr]s1/14Q.1[OCRerr]/4fl4 [OCRerr]CHOP[OCRerr]-Q[OCRerr] (61 [OCRerr] / ( 6[OCRerr]O) $7/ 1 [OCRerr] [OCRerr] - I - Eq 1 [OCRerr] [OCRerr]1 -` [OCRerr] 9 £i /1 g /1[OCRerr]4.4+.[OCRerr]+.[OCRerr]+.I [OCRerr]+91[OCRerr]14,'[OCRerr]916+91q+ [OCRerr] )$7/1[OCRerr]7.15/'[OCRerr]9[OCRerr] [OCRerr][OCRerr]T[OCRerr][OCRerr]L-471 ([OCRerr][OCRerr]7) ,(6[OCRerr]O[OCRerr]S7/l6' [OCRerr] [OCRerr]/e [OCRerr]46$1/1[OCRerr]6, [OCRerr]4[OCRerr]'[OCRerr]/4j [OCRerr] [OCRerr] `,[OCRerr] 14[OCRerr],¶',1.6l,1[OCRerr]/4l4 %ALT[OCRerr][OCRerr][OCRerr]-411 e[OCRerr]-[OCRerr]' ,[OCRerr] [OCRerr] [OCRerr]$`/1 7[OCRerr] ,1' `41[OCRerr] [OCRerr] f ¶ [OCRerr]91 If 1 [OCRerr] (.711 77 [OCRerr] - W C T [OCRerr] - 7 [OCRerr] fl [OCRerr] 1 [OCRerr] / 1 [OCRerr] [OCRerr] [OCRerr] 1 7 1 [OCRerr] [OCRerr] I(4?[OCRerr] )$[OCRerr]I1[OCRerr][OCRerr] If?[OCRerr]7f $7/1[OCRerr]6 [OCRerr] f6[OCRerr][OCRerr] fIf[OCRerr][OCRerr]4f1'/177.1[OCRerr]I41[OCRerr] [OCRerr] [OCRerr]OC5TM[OCRerr]67q( l[OCRerr]1) If[OCRerr]C'4)$7I1[OCRerr][OCRerr] [OCRerr] If [OCRerr] . 1[OCRerr]I4[OCRerr][OCRerr] [OCRerr] If 441. ft7[OCRerr]¶-[OCRerr]4[OCRerr]1 [OCRerr]I4?1 9'i'*[OCRerr] A C - f [OCRerr] - ) I 1 [OCRerr] 1$ 711 [OCRerr] [OCRerr], [OCRerr] [OCRerr] - 7 f [OCRerr] 4 [OCRerr] I f [OCRerr] f $ ` ` [OCRerr] 1 14 ,4 A?, - 7[OCRerr] 1 10 , f [OCRerr] $ I [OCRerr] [OCRerr]`j[OCRerr]ff AT ? f ?` ` f I [OCRerr] 41- 1 ) ([OCRerr] I d S [OCRerr] If[OCRerr]'[OCRerr] )$7I1[OCRerr][OCRerr] [OCRerr] f1[OCRerr]4f/f6?[OCRerr] I$7I1[OCRerr][OCRerr] 1 [OCRerr] 9 [OCRerr]1 [OCRerr] If [OCRerr] I [OCRerr] $ 7/1 Q [OCRerr] ,[OCRerr]`f If?71 f[OCRerr]1 I1[OCRerr]- *l+ 0ATG[OCRerr][OCRerr]z6[OCRerr]lf ¶¶4[OCRerr] /( [OCRerr] 1;I4?[OCRerr],1 7[OCRerr] [OCRerr] If'4[OCRerr].[OCRerr]61[OCRerr]1 I /[OCRerr]q[OCRerr],1+91 C1[OCRerr]7[OCRerr]9¶ 7+ [OCRerr] [OCRerr] If 7.[OCRerr][OCRerr]4f$1 I2[OCRerr]1 [OCRerr] /4[OCRerr]1[OCRerr]1[OCRerr]+ D[OCRerr] [OCRerr] If [OCRerr]41 )$7,7.[OCRerr]1*¶[OCRerr]/41[OCRerr] 0[OCRerr]yVAQl0[OCRerr]f4lI. ) If `41 [OCRerr] [OCRerr]NT[OCRerr]Off=4[OCRerr][OCRerr] f[OCRerr]:c If 1 -[OCRerr]1$7I?[OCRerr][OCRerr].15/4[OCRerr]7 [OCRerr] ([OCRerr][OCRerr].?f /f6[OCRerr]? [OCRerr] [OCRerr] [OCRerr] [OCRerr] ¶¶)/f[OCRerr][OCRerr]q )$7/[OCRerr][OCRerr] [OCRerr] C [OCRerr]4Q.64[OCRerr] f[OCRerr] f[OCRerr][OCRerr][OCRerr])$!/?1O.1+.I [OCRerr]/4'.O [OCRerr][OCRerr]wt[OCRerr][OCRerr]--651 flpQf /f54q 1$1 I?I?.[OCRerr]+ D[OCRerr]WC[OCRerr]ii6r[OCRerr] f[OCRerr]149[OCRerr]c[OCRerr]f [OCRerr] f440f[OCRerr]'. I[OCRerr]l[OCRerr]91+ [OCRerr] f [OCRerr] /f44[OCRerr] f$7I?1[OCRerr] [OCRerr] IfA4[OCRerr]¶[OCRerr][OCRerr]I?1 - EXCERPT FROM CRITERION TREE DICTIONARY