<DOC>
<DOCNO> SP500215 </DOCNO>
<TITLE> NIST Special Publication 500-215: The Second Text REtrieval Conference (TREC-2) </TITLE>
<SUBTITLE> Appendix B: System Features </SUBTITLE>
<TYPE> Appendix </TYPE>
<PAGE CHAPTER="B" NUMBER="4">
<AUTHOR1> </AUTHOR1>
<PUBLISHER> National Institute of Standards and Technology </PUBLISHER>
<EDITOR1> D. K. Harman </EDITOR1>
<COPYRIGHT MTH="March" DAY="" YEAR="1994" BY="National Institute of Standards and Technology">
</COPYRIGHT>
<BODY>
[EM NAME [OCRerr] GE [1] J CLARIT [OCRerr] LSI [ IINC J_NYU [OCRerr] SYRACUSE [OCRerr] QUEE]
*d List Yes No Yes, SMART Yes Yes Yes (Stage 2) Yes
[OCRerr]r of Words 5 [2] 570 375 380 48 (Stage 2) 630
led Vocabulary No No No No No No
ng None Yes Yes Yes Yes Yes
lard Algorithms SMART Lovins No Kelly & Stone [13] Porter
ihological analysis _______________ Yes [3] No Yes No
Document
eighting Ranking Gnly Yes [4] "ltc" [10] tf, idf Yes Yes [14] Yes
Discovery No Yes Yes Yes Yes
simplex noun NP's, VP's, Proper nouns &
of phrase _______________ phrases [5] ______________ _________ Others complex nominals 2-word
tical Methods No Yes Partially No Yes
.ctic Methods Yes [6] _______________ __________ Yes Yes
Ic parsing No Yes, see ahove No Yes Yes (partially) [15] No
ense Disambiguation No Yes [7] No No Yes [16] No
ic Associations No No No Yes Yes No
Synonymy, Semantic relations
Definition _________ specializations between concepts
hecking
Manual Correction) No No No No No No
`,Correction No No No No No No
Noun Identification No Yes [8] No Partial Yes No
`2r No No No Yes Yes No
.`h Patterns year numbers Dates
Manually Indexed Terms No No N/A No No No
rechniques to Build Data
[OCRerr]res Yes [9] Yes [11] _________________ [17]
</BODY>
</PAGE>
</DOC>