10 Sep 2003
CS 6210: Module 5
7/18
Number of index terms in record
¡Long (Exhaustive)
lGives good recall at cost of precision
lFew records fit in the UI
lHard to figure out which are main aspects
¡Short (Selective)
lGives good precision at cost of recall
lLess work
¡In practice: offer levels of indexing for tasks
lIndex Terms
lAbstract
Number of terms
assigned /
cost
cost
0
100
-
Modified from
Lancaster (98), pg 27.
Lancaster (98), pg 27.
